diff --git "a/luckyexcel.umd.js" "b/luckyexcel.umd.js"
new file mode 100644--- /dev/null
+++ "b/luckyexcel.umd.js"
@@ -0,0 +1,22903 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.LuckyExcel = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
+'use strict'
+
+exports.byteLength = byteLength
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
+
+var lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
+
+var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+for (var i = 0, len = code.length; i < len; ++i) {
+  lookup[i] = code[i]
+  revLookup[code.charCodeAt(i)] = i
+}
+
+// Support decoding URL-safe base64 strings, as Node.js does.
+// See: https://en.wikipedia.org/wiki/Base64#URL_applications
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
+
+function getLens (b64) {
+  var len = b64.length
+
+  if (len % 4 > 0) {
+    throw new Error('Invalid string. Length must be a multiple of 4')
+  }
+
+  // Trim off extra bytes after placeholder bytes are found
+  // See: https://github.com/beatgammit/base64-js/issues/42
+  var validLen = b64.indexOf('=')
+  if (validLen === -1) validLen = len
+
+  var placeHoldersLen = validLen === len
+    ? 0
+    : 4 - (validLen % 4)
+
+  return [validLen, placeHoldersLen]
+}
+
+// base64 is 4/3 + up to two characters of the original data
+function byteLength (b64) {
+  var lens = getLens(b64)
+  var validLen = lens[0]
+  var placeHoldersLen = lens[1]
+  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
+}
+
+function _byteLength (b64, validLen, placeHoldersLen) {
+  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
+}
+
+function toByteArray (b64) {
+  var tmp
+  var lens = getLens(b64)
+  var validLen = lens[0]
+  var placeHoldersLen = lens[1]
+
+  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))
+
+  var curByte = 0
+
+  // if there are placeholders, only get up to the last complete 4 chars
+  var len = placeHoldersLen > 0
+    ? validLen - 4
+    : validLen
+
+  var i
+  for (i = 0; i < len; i += 4) {
+    tmp =
+      (revLookup[b64.charCodeAt(i)] << 18) |
+      (revLookup[b64.charCodeAt(i + 1)] << 12) |
+      (revLookup[b64.charCodeAt(i + 2)] << 6) |
+      revLookup[b64.charCodeAt(i + 3)]
+    arr[curByte++] = (tmp >> 16) & 0xFF
+    arr[curByte++] = (tmp >> 8) & 0xFF
+    arr[curByte++] = tmp & 0xFF
+  }
+
+  if (placeHoldersLen === 2) {
+    tmp =
+      (revLookup[b64.charCodeAt(i)] << 2) |
+      (revLookup[b64.charCodeAt(i + 1)] >> 4)
+    arr[curByte++] = tmp & 0xFF
+  }
+
+  if (placeHoldersLen === 1) {
+    tmp =
+      (revLookup[b64.charCodeAt(i)] << 10) |
+      (revLookup[b64.charCodeAt(i + 1)] << 4) |
+      (revLookup[b64.charCodeAt(i + 2)] >> 2)
+    arr[curByte++] = (tmp >> 8) & 0xFF
+    arr[curByte++] = tmp & 0xFF
+  }
+
+  return arr
+}
+
+function tripletToBase64 (num) {
+  return lookup[num >> 18 & 0x3F] +
+    lookup[num >> 12 & 0x3F] +
+    lookup[num >> 6 & 0x3F] +
+    lookup[num & 0x3F]
+}
+
+function encodeChunk (uint8, start, end) {
+  var tmp
+  var output = []
+  for (var i = start; i < end; i += 3) {
+    tmp =
+      ((uint8[i] << 16) & 0xFF0000) +
+      ((uint8[i + 1] << 8) & 0xFF00) +
+      (uint8[i + 2] & 0xFF)
+    output.push(tripletToBase64(tmp))
+  }
+  return output.join('')
+}
+
+function fromByteArray (uint8) {
+  var tmp
+  var len = uint8.length
+  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
+  var parts = []
+  var maxChunkLength = 16383 // must be multiple of 3
+
+  // go through the array every three bytes, we'll deal with trailing stuff later
+  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
+    parts.push(encodeChunk(
+      uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)
+    ))
+  }
+
+  // pad the end with zeros, but make sure to not forget the extra bytes
+  if (extraBytes === 1) {
+    tmp = uint8[len - 1]
+    parts.push(
+      lookup[tmp >> 2] +
+      lookup[(tmp << 4) & 0x3F] +
+      '=='
+    )
+  } else if (extraBytes === 2) {
+    tmp = (uint8[len - 2] << 8) + uint8[len - 1]
+    parts.push(
+      lookup[tmp >> 10] +
+      lookup[(tmp >> 4) & 0x3F] +
+      lookup[(tmp << 2) & 0x3F] +
+      '='
+    )
+  }
+
+  return parts.join('')
+}
+
+},{}],2:[function(require,module,exports){
+
+},{}],3:[function(require,module,exports){
+(function (Buffer){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author   Feross Aboukhadijeh <https://feross.org>
+ * @license  MIT
+ */
+/* eslint-disable no-proto */
+
+'use strict'
+
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
+
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
+
+var K_MAX_LENGTH = 0x7fffffff
+exports.kMaxLength = K_MAX_LENGTH
+
+/**
+ * If `Buffer.TYPED_ARRAY_SUPPORT`:
+ *   === true    Use Uint8Array implementation (fastest)
+ *   === false   Print warning and recommend using `buffer` v4.x which has an Object
+ *               implementation (most compatible, even IE6)
+ *
+ * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
+ * Opera 11.6+, iOS 4.2+.
+ *
+ * We report that the browser does not support typed arrays if the are not subclassable
+ * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
+ * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
+ * for __proto__ and has a buggy typed array implementation.
+ */
+Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
+
+if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
+    typeof console.error === 'function') {
+  console.error(
+    'This browser lacks typed array (Uint8Array) support which is required by ' +
+    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
+  )
+}
+
+function typedArraySupport () {
+  // Can typed array instances can be augmented?
+  try {
+    var arr = new Uint8Array(1)
+    arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } }
+    return arr.foo() === 42
+  } catch (e) {
+    return false
+  }
+}
+
+Object.defineProperty(Buffer.prototype, 'parent', {
+  enumerable: true,
+  get: function () {
+    if (!Buffer.isBuffer(this)) return undefined
+    return this.buffer
+  }
+})
+
+Object.defineProperty(Buffer.prototype, 'offset', {
+  enumerable: true,
+  get: function () {
+    if (!Buffer.isBuffer(this)) return undefined
+    return this.byteOffset
+  }
+})
+
+function createBuffer (length) {
+  if (length > K_MAX_LENGTH) {
+    throw new RangeError('The value "' + length + '" is invalid for option "size"')
+  }
+  // Return an augmented `Uint8Array` instance
+  var buf = new Uint8Array(length)
+  buf.__proto__ = Buffer.prototype
+  return buf
+}
+
+/**
+ * The Buffer constructor returns instances of `Uint8Array` that have their
+ * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
+ * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
+ * and the `Uint8Array` methods. Square bracket notation works as expected -- it
+ * returns a single octet.
+ *
+ * The `Uint8Array` prototype remains unmodified.
+ */
+
+function Buffer (arg, encodingOrOffset, length) {
+  // Common case.
+  if (typeof arg === 'number') {
+    if (typeof encodingOrOffset === 'string') {
+      throw new TypeError(
+        'The "string" argument must be of type string. Received type number'
+      )
+    }
+    return allocUnsafe(arg)
+  }
+  return from(arg, encodingOrOffset, length)
+}
+
+// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
+if (typeof Symbol !== 'undefined' && Symbol.species != null &&
+    Buffer[Symbol.species] === Buffer) {
+  Object.defineProperty(Buffer, Symbol.species, {
+    value: null,
+    configurable: true,
+    enumerable: false,
+    writable: false
+  })
+}
+
+Buffer.poolSize = 8192 // not used by this implementation
+
+function from (value, encodingOrOffset, length) {
+  if (typeof value === 'string') {
+    return fromString(value, encodingOrOffset)
+  }
+
+  if (ArrayBuffer.isView(value)) {
+    return fromArrayLike(value)
+  }
+
+  if (value == null) {
+    throw TypeError(
+      'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
+      'or Array-like Object. Received type ' + (typeof value)
+    )
+  }
+
+  if (isInstance(value, ArrayBuffer) ||
+      (value && isInstance(value.buffer, ArrayBuffer))) {
+    return fromArrayBuffer(value, encodingOrOffset, length)
+  }
+
+  if (typeof value === 'number') {
+    throw new TypeError(
+      'The "value" argument must not be of type number. Received type number'
+    )
+  }
+
+  var valueOf = value.valueOf && value.valueOf()
+  if (valueOf != null && valueOf !== value) {
+    return Buffer.from(valueOf, encodingOrOffset, length)
+  }
+
+  var b = fromObject(value)
+  if (b) return b
+
+  if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
+      typeof value[Symbol.toPrimitive] === 'function') {
+    return Buffer.from(
+      value[Symbol.toPrimitive]('string'), encodingOrOffset, length
+    )
+  }
+
+  throw new TypeError(
+    'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
+    'or Array-like Object. Received type ' + (typeof value)
+  )
+}
+
+/**
+ * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
+ * if value is a number.
+ * Buffer.from(str[, encoding])
+ * Buffer.from(array)
+ * Buffer.from(buffer)
+ * Buffer.from(arrayBuffer[, byteOffset[, length]])
+ **/
+Buffer.from = function (value, encodingOrOffset, length) {
+  return from(value, encodingOrOffset, length)
+}
+
+// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
+// https://github.com/feross/buffer/pull/148
+Buffer.prototype.__proto__ = Uint8Array.prototype
+Buffer.__proto__ = Uint8Array
+
+function assertSize (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('"size" argument must be of type number')
+  } else if (size < 0) {
+    throw new RangeError('The value "' + size + '" is invalid for option "size"')
+  }
+}
+
+function alloc (size, fill, encoding) {
+  assertSize(size)
+  if (size <= 0) {
+    return createBuffer(size)
+  }
+  if (fill !== undefined) {
+    // Only pay attention to encoding if it's a string. This
+    // prevents accidentally sending in a number that would
+    // be interpretted as a start offset.
+    return typeof encoding === 'string'
+      ? createBuffer(size).fill(fill, encoding)
+      : createBuffer(size).fill(fill)
+  }
+  return createBuffer(size)
+}
+
+/**
+ * Creates a new filled Buffer instance.
+ * alloc(size[, fill[, encoding]])
+ **/
+Buffer.alloc = function (size, fill, encoding) {
+  return alloc(size, fill, encoding)
+}
+
+function allocUnsafe (size) {
+  assertSize(size)
+  return createBuffer(size < 0 ? 0 : checked(size) | 0)
+}
+
+/**
+ * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
+ * */
+Buffer.allocUnsafe = function (size) {
+  return allocUnsafe(size)
+}
+/**
+ * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
+ */
+Buffer.allocUnsafeSlow = function (size) {
+  return allocUnsafe(size)
+}
+
+function fromString (string, encoding) {
+  if (typeof encoding !== 'string' || encoding === '') {
+    encoding = 'utf8'
+  }
+
+  if (!Buffer.isEncoding(encoding)) {
+    throw new TypeError('Unknown encoding: ' + encoding)
+  }
+
+  var length = byteLength(string, encoding) | 0
+  var buf = createBuffer(length)
+
+  var actual = buf.write(string, encoding)
+
+  if (actual !== length) {
+    // Writing a hex string, for example, that contains invalid characters will
+    // cause everything after the first invalid character to be ignored. (e.g.
+    // 'abxxcd' will be treated as 'ab')
+    buf = buf.slice(0, actual)
+  }
+
+  return buf
+}
+
+function fromArrayLike (array) {
+  var length = array.length < 0 ? 0 : checked(array.length) | 0
+  var buf = createBuffer(length)
+  for (var i = 0; i < length; i += 1) {
+    buf[i] = array[i] & 255
+  }
+  return buf
+}
+
+function fromArrayBuffer (array, byteOffset, length) {
+  if (byteOffset < 0 || array.byteLength < byteOffset) {
+    throw new RangeError('"offset" is outside of buffer bounds')
+  }
+
+  if (array.byteLength < byteOffset + (length || 0)) {
+    throw new RangeError('"length" is outside of buffer bounds')
+  }
+
+  var buf
+  if (byteOffset === undefined && length === undefined) {
+    buf = new Uint8Array(array)
+  } else if (length === undefined) {
+    buf = new Uint8Array(array, byteOffset)
+  } else {
+    buf = new Uint8Array(array, byteOffset, length)
+  }
+
+  // Return an augmented `Uint8Array` instance
+  buf.__proto__ = Buffer.prototype
+  return buf
+}
+
+function fromObject (obj) {
+  if (Buffer.isBuffer(obj)) {
+    var len = checked(obj.length) | 0
+    var buf = createBuffer(len)
+
+    if (buf.length === 0) {
+      return buf
+    }
+
+    obj.copy(buf, 0, 0, len)
+    return buf
+  }
+
+  if (obj.length !== undefined) {
+    if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
+      return createBuffer(0)
+    }
+    return fromArrayLike(obj)
+  }
+
+  if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
+    return fromArrayLike(obj.data)
+  }
+}
+
+function checked (length) {
+  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
+  // length is NaN (which is otherwise coerced to zero.)
+  if (length >= K_MAX_LENGTH) {
+    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
+                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
+  }
+  return length | 0
+}
+
+function SlowBuffer (length) {
+  if (+length != length) { // eslint-disable-line eqeqeq
+    length = 0
+  }
+  return Buffer.alloc(+length)
+}
+
+Buffer.isBuffer = function isBuffer (b) {
+  return b != null && b._isBuffer === true &&
+    b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
+}
+
+Buffer.compare = function compare (a, b) {
+  if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
+  if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
+  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+    throw new TypeError(
+      'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
+    )
+  }
+
+  if (a === b) return 0
+
+  var x = a.length
+  var y = b.length
+
+  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+    if (a[i] !== b[i]) {
+      x = a[i]
+      y = b[i]
+      break
+    }
+  }
+
+  if (x < y) return -1
+  if (y < x) return 1
+  return 0
+}
+
+Buffer.isEncoding = function isEncoding (encoding) {
+  switch (String(encoding).toLowerCase()) {
+    case 'hex':
+    case 'utf8':
+    case 'utf-8':
+    case 'ascii':
+    case 'latin1':
+    case 'binary':
+    case 'base64':
+    case 'ucs2':
+    case 'ucs-2':
+    case 'utf16le':
+    case 'utf-16le':
+      return true
+    default:
+      return false
+  }
+}
+
+Buffer.concat = function concat (list, length) {
+  if (!Array.isArray(list)) {
+    throw new TypeError('"list" argument must be an Array of Buffers')
+  }
+
+  if (list.length === 0) {
+    return Buffer.alloc(0)
+  }
+
+  var i
+  if (length === undefined) {
+    length = 0
+    for (i = 0; i < list.length; ++i) {
+      length += list[i].length
+    }
+  }
+
+  var buffer = Buffer.allocUnsafe(length)
+  var pos = 0
+  for (i = 0; i < list.length; ++i) {
+    var buf = list[i]
+    if (isInstance(buf, Uint8Array)) {
+      buf = Buffer.from(buf)
+    }
+    if (!Buffer.isBuffer(buf)) {
+      throw new TypeError('"list" argument must be an Array of Buffers')
+    }
+    buf.copy(buffer, pos)
+    pos += buf.length
+  }
+  return buffer
+}
+
+function byteLength (string, encoding) {
+  if (Buffer.isBuffer(string)) {
+    return string.length
+  }
+  if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
+    return string.byteLength
+  }
+  if (typeof string !== 'string') {
+    throw new TypeError(
+      'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
+      'Received type ' + typeof string
+    )
+  }
+
+  var len = string.length
+  var mustMatch = (arguments.length > 2 && arguments[2] === true)
+  if (!mustMatch && len === 0) return 0
+
+  // Use a for loop to avoid recursion
+  var loweredCase = false
+  for (;;) {
+    switch (encoding) {
+      case 'ascii':
+      case 'latin1':
+      case 'binary':
+        return len
+      case 'utf8':
+      case 'utf-8':
+        return utf8ToBytes(string).length
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return len * 2
+      case 'hex':
+        return len >>> 1
+      case 'base64':
+        return base64ToBytes(string).length
+      default:
+        if (loweredCase) {
+          return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
+        }
+        encoding = ('' + encoding).toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+Buffer.byteLength = byteLength
+
+function slowToString (encoding, start, end) {
+  var loweredCase = false
+
+  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+  // property of a typed array.
+
+  // This behaves neither like String nor Uint8Array in that we set start/end
+  // to their upper/lower bounds if the value passed is out of range.
+  // undefined is handled specially as per ECMA-262 6th Edition,
+  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
+  if (start === undefined || start < 0) {
+    start = 0
+  }
+  // Return early if start > this.length. Done here to prevent potential uint32
+  // coercion fail below.
+  if (start > this.length) {
+    return ''
+  }
+
+  if (end === undefined || end > this.length) {
+    end = this.length
+  }
+
+  if (end <= 0) {
+    return ''
+  }
+
+  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+  end >>>= 0
+  start >>>= 0
+
+  if (end <= start) {
+    return ''
+  }
+
+  if (!encoding) encoding = 'utf8'
+
+  while (true) {
+    switch (encoding) {
+      case 'hex':
+        return hexSlice(this, start, end)
+
+      case 'utf8':
+      case 'utf-8':
+        return utf8Slice(this, start, end)
+
+      case 'ascii':
+        return asciiSlice(this, start, end)
+
+      case 'latin1':
+      case 'binary':
+        return latin1Slice(this, start, end)
+
+      case 'base64':
+        return base64Slice(this, start, end)
+
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return utf16leSlice(this, start, end)
+
+      default:
+        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+        encoding = (encoding + '').toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+
+// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
+// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
+// reliably in a browserify context because there could be multiple different
+// copies of the 'buffer' package in use. This method works even for Buffer
+// instances that were created from another copy of the `buffer` package.
+// See: https://github.com/feross/buffer/issues/154
+Buffer.prototype._isBuffer = true
+
+function swap (b, n, m) {
+  var i = b[n]
+  b[n] = b[m]
+  b[m] = i
+}
+
+Buffer.prototype.swap16 = function swap16 () {
+  var len = this.length
+  if (len % 2 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 16-bits')
+  }
+  for (var i = 0; i < len; i += 2) {
+    swap(this, i, i + 1)
+  }
+  return this
+}
+
+Buffer.prototype.swap32 = function swap32 () {
+  var len = this.length
+  if (len % 4 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 32-bits')
+  }
+  for (var i = 0; i < len; i += 4) {
+    swap(this, i, i + 3)
+    swap(this, i + 1, i + 2)
+  }
+  return this
+}
+
+Buffer.prototype.swap64 = function swap64 () {
+  var len = this.length
+  if (len % 8 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 64-bits')
+  }
+  for (var i = 0; i < len; i += 8) {
+    swap(this, i, i + 7)
+    swap(this, i + 1, i + 6)
+    swap(this, i + 2, i + 5)
+    swap(this, i + 3, i + 4)
+  }
+  return this
+}
+
+Buffer.prototype.toString = function toString () {
+  var length = this.length
+  if (length === 0) return ''
+  if (arguments.length === 0) return utf8Slice(this, 0, length)
+  return slowToString.apply(this, arguments)
+}
+
+Buffer.prototype.toLocaleString = Buffer.prototype.toString
+
+Buffer.prototype.equals = function equals (b) {
+  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
+  if (this === b) return true
+  return Buffer.compare(this, b) === 0
+}
+
+Buffer.prototype.inspect = function inspect () {
+  var str = ''
+  var max = exports.INSPECT_MAX_BYTES
+  str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
+  if (this.length > max) str += ' ... '
+  return '<Buffer ' + str + '>'
+}
+
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+  if (isInstance(target, Uint8Array)) {
+    target = Buffer.from(target, target.offset, target.byteLength)
+  }
+  if (!Buffer.isBuffer(target)) {
+    throw new TypeError(
+      'The "target" argument must be one of type Buffer or Uint8Array. ' +
+      'Received type ' + (typeof target)
+    )
+  }
+
+  if (start === undefined) {
+    start = 0
+  }
+  if (end === undefined) {
+    end = target ? target.length : 0
+  }
+  if (thisStart === undefined) {
+    thisStart = 0
+  }
+  if (thisEnd === undefined) {
+    thisEnd = this.length
+  }
+
+  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+    throw new RangeError('out of range index')
+  }
+
+  if (thisStart >= thisEnd && start >= end) {
+    return 0
+  }
+  if (thisStart >= thisEnd) {
+    return -1
+  }
+  if (start >= end) {
+    return 1
+  }
+
+  start >>>= 0
+  end >>>= 0
+  thisStart >>>= 0
+  thisEnd >>>= 0
+
+  if (this === target) return 0
+
+  var x = thisEnd - thisStart
+  var y = end - start
+  var len = Math.min(x, y)
+
+  var thisCopy = this.slice(thisStart, thisEnd)
+  var targetCopy = target.slice(start, end)
+
+  for (var i = 0; i < len; ++i) {
+    if (thisCopy[i] !== targetCopy[i]) {
+      x = thisCopy[i]
+      y = targetCopy[i]
+      break
+    }
+  }
+
+  if (x < y) return -1
+  if (y < x) return 1
+  return 0
+}
+
+// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
+// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
+//
+// Arguments:
+// - buffer - a Buffer to search
+// - val - a string, Buffer, or number
+// - byteOffset - an index into `buffer`; will be clamped to an int32
+// - encoding - an optional encoding, relevant is val is a string
+// - dir - true for indexOf, false for lastIndexOf
+function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
+  // Empty buffer means no match
+  if (buffer.length === 0) return -1
+
+  // Normalize byteOffset
+  if (typeof byteOffset === 'string') {
+    encoding = byteOffset
+    byteOffset = 0
+  } else if (byteOffset > 0x7fffffff) {
+    byteOffset = 0x7fffffff
+  } else if (byteOffset < -0x80000000) {
+    byteOffset = -0x80000000
+  }
+  byteOffset = +byteOffset // Coerce to Number.
+  if (numberIsNaN(byteOffset)) {
+    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
+    byteOffset = dir ? 0 : (buffer.length - 1)
+  }
+
+  // Normalize byteOffset: negative offsets start from the end of the buffer
+  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
+  if (byteOffset >= buffer.length) {
+    if (dir) return -1
+    else byteOffset = buffer.length - 1
+  } else if (byteOffset < 0) {
+    if (dir) byteOffset = 0
+    else return -1
+  }
+
+  // Normalize val
+  if (typeof val === 'string') {
+    val = Buffer.from(val, encoding)
+  }
+
+  // Finally, search either indexOf (if dir is true) or lastIndexOf
+  if (Buffer.isBuffer(val)) {
+    // Special case: looking for empty string/buffer always fails
+    if (val.length === 0) {
+      return -1
+    }
+    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
+  } else if (typeof val === 'number') {
+    val = val & 0xFF // Search for a byte value [0-255]
+    if (typeof Uint8Array.prototype.indexOf === 'function') {
+      if (dir) {
+        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
+      } else {
+        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
+      }
+    }
+    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
+  }
+
+  throw new TypeError('val must be string, number or Buffer')
+}
+
+function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
+  var indexSize = 1
+  var arrLength = arr.length
+  var valLength = val.length
+
+  if (encoding !== undefined) {
+    encoding = String(encoding).toLowerCase()
+    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
+        encoding === 'utf16le' || encoding === 'utf-16le') {
+      if (arr.length < 2 || val.length < 2) {
+        return -1
+      }
+      indexSize = 2
+      arrLength /= 2
+      valLength /= 2
+      byteOffset /= 2
+    }
+  }
+
+  function read (buf, i) {
+    if (indexSize === 1) {
+      return buf[i]
+    } else {
+      return buf.readUInt16BE(i * indexSize)
+    }
+  }
+
+  var i
+  if (dir) {
+    var foundIndex = -1
+    for (i = byteOffset; i < arrLength; i++) {
+      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
+        if (foundIndex === -1) foundIndex = i
+        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
+      } else {
+        if (foundIndex !== -1) i -= i - foundIndex
+        foundIndex = -1
+      }
+    }
+  } else {
+    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
+    for (i = byteOffset; i >= 0; i--) {
+      var found = true
+      for (var j = 0; j < valLength; j++) {
+        if (read(arr, i + j) !== read(val, j)) {
+          found = false
+          break
+        }
+      }
+      if (found) return i
+    }
+  }
+
+  return -1
+}
+
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+  return this.indexOf(val, byteOffset, encoding) !== -1
+}
+
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
+}
+
+Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
+  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
+}
+
+function hexWrite (buf, string, offset, length) {
+  offset = Number(offset) || 0
+  var remaining = buf.length - offset
+  if (!length) {
+    length = remaining
+  } else {
+    length = Number(length)
+    if (length > remaining) {
+      length = remaining
+    }
+  }
+
+  var strLen = string.length
+
+  if (length > strLen / 2) {
+    length = strLen / 2
+  }
+  for (var i = 0; i < length; ++i) {
+    var parsed = parseInt(string.substr(i * 2, 2), 16)
+    if (numberIsNaN(parsed)) return i
+    buf[offset + i] = parsed
+  }
+  return i
+}
+
+function utf8Write (buf, string, offset, length) {
+  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+function asciiWrite (buf, string, offset, length) {
+  return blitBuffer(asciiToBytes(string), buf, offset, length)
+}
+
+function latin1Write (buf, string, offset, length) {
+  return asciiWrite(buf, string, offset, length)
+}
+
+function base64Write (buf, string, offset, length) {
+  return blitBuffer(base64ToBytes(string), buf, offset, length)
+}
+
+function ucs2Write (buf, string, offset, length) {
+  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+Buffer.prototype.write = function write (string, offset, length, encoding) {
+  // Buffer#write(string)
+  if (offset === undefined) {
+    encoding = 'utf8'
+    length = this.length
+    offset = 0
+  // Buffer#write(string, encoding)
+  } else if (length === undefined && typeof offset === 'string') {
+    encoding = offset
+    length = this.length
+    offset = 0
+  // Buffer#write(string, offset[, length][, encoding])
+  } else if (isFinite(offset)) {
+    offset = offset >>> 0
+    if (isFinite(length)) {
+      length = length >>> 0
+      if (encoding === undefined) encoding = 'utf8'
+    } else {
+      encoding = length
+      length = undefined
+    }
+  } else {
+    throw new Error(
+      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
+    )
+  }
+
+  var remaining = this.length - offset
+  if (length === undefined || length > remaining) length = remaining
+
+  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
+    throw new RangeError('Attempt to write outside buffer bounds')
+  }
+
+  if (!encoding) encoding = 'utf8'
+
+  var loweredCase = false
+  for (;;) {
+    switch (encoding) {
+      case 'hex':
+        return hexWrite(this, string, offset, length)
+
+      case 'utf8':
+      case 'utf-8':
+        return utf8Write(this, string, offset, length)
+
+      case 'ascii':
+        return asciiWrite(this, string, offset, length)
+
+      case 'latin1':
+      case 'binary':
+        return latin1Write(this, string, offset, length)
+
+      case 'base64':
+        // Warning: maxLength not taken into account in base64Write
+        return base64Write(this, string, offset, length)
+
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return ucs2Write(this, string, offset, length)
+
+      default:
+        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+        encoding = ('' + encoding).toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+
+Buffer.prototype.toJSON = function toJSON () {
+  return {
+    type: 'Buffer',
+    data: Array.prototype.slice.call(this._arr || this, 0)
+  }
+}
+
+function base64Slice (buf, start, end) {
+  if (start === 0 && end === buf.length) {
+    return base64.fromByteArray(buf)
+  } else {
+    return base64.fromByteArray(buf.slice(start, end))
+  }
+}
+
+function utf8Slice (buf, start, end) {
+  end = Math.min(buf.length, end)
+  var res = []
+
+  var i = start
+  while (i < end) {
+    var firstByte = buf[i]
+    var codePoint = null
+    var bytesPerSequence = (firstByte > 0xEF) ? 4
+      : (firstByte > 0xDF) ? 3
+        : (firstByte > 0xBF) ? 2
+          : 1
+
+    if (i + bytesPerSequence <= end) {
+      var secondByte, thirdByte, fourthByte, tempCodePoint
+
+      switch (bytesPerSequence) {
+        case 1:
+          if (firstByte < 0x80) {
+            codePoint = firstByte
+          }
+          break
+        case 2:
+          secondByte = buf[i + 1]
+          if ((secondByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
+            if (tempCodePoint > 0x7F) {
+              codePoint = tempCodePoint
+            }
+          }
+          break
+        case 3:
+          secondByte = buf[i + 1]
+          thirdByte = buf[i + 2]
+          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
+            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
+              codePoint = tempCodePoint
+            }
+          }
+          break
+        case 4:
+          secondByte = buf[i + 1]
+          thirdByte = buf[i + 2]
+          fourthByte = buf[i + 3]
+          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
+            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
+              codePoint = tempCodePoint
+            }
+          }
+      }
+    }
+
+    if (codePoint === null) {
+      // we did not generate a valid codePoint so insert a
+      // replacement char (U+FFFD) and advance only 1 byte
+      codePoint = 0xFFFD
+      bytesPerSequence = 1
+    } else if (codePoint > 0xFFFF) {
+      // encode to utf16 (surrogate pair dance)
+      codePoint -= 0x10000
+      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
+      codePoint = 0xDC00 | codePoint & 0x3FF
+    }
+
+    res.push(codePoint)
+    i += bytesPerSequence
+  }
+
+  return decodeCodePointsArray(res)
+}
+
+// Based on http://stackoverflow.com/a/22747272/680742, the browser with
+// the lowest limit is Chrome, with 0x10000 args.
+// We go 1 magnitude less, for safety
+var MAX_ARGUMENTS_LENGTH = 0x1000
+
+function decodeCodePointsArray (codePoints) {
+  var len = codePoints.length
+  if (len <= MAX_ARGUMENTS_LENGTH) {
+    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
+  }
+
+  // Decode in chunks to avoid "call stack size exceeded".
+  var res = ''
+  var i = 0
+  while (i < len) {
+    res += String.fromCharCode.apply(
+      String,
+      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
+    )
+  }
+  return res
+}
+
+function asciiSlice (buf, start, end) {
+  var ret = ''
+  end = Math.min(buf.length, end)
+
+  for (var i = start; i < end; ++i) {
+    ret += String.fromCharCode(buf[i] & 0x7F)
+  }
+  return ret
+}
+
+function latin1Slice (buf, start, end) {
+  var ret = ''
+  end = Math.min(buf.length, end)
+
+  for (var i = start; i < end; ++i) {
+    ret += String.fromCharCode(buf[i])
+  }
+  return ret
+}
+
+function hexSlice (buf, start, end) {
+  var len = buf.length
+
+  if (!start || start < 0) start = 0
+  if (!end || end < 0 || end > len) end = len
+
+  var out = ''
+  for (var i = start; i < end; ++i) {
+    out += toHex(buf[i])
+  }
+  return out
+}
+
+function utf16leSlice (buf, start, end) {
+  var bytes = buf.slice(start, end)
+  var res = ''
+  for (var i = 0; i < bytes.length; i += 2) {
+    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
+  }
+  return res
+}
+
+Buffer.prototype.slice = function slice (start, end) {
+  var len = this.length
+  start = ~~start
+  end = end === undefined ? len : ~~end
+
+  if (start < 0) {
+    start += len
+    if (start < 0) start = 0
+  } else if (start > len) {
+    start = len
+  }
+
+  if (end < 0) {
+    end += len
+    if (end < 0) end = 0
+  } else if (end > len) {
+    end = len
+  }
+
+  if (end < start) end = start
+
+  var newBuf = this.subarray(start, end)
+  // Return an augmented `Uint8Array` instance
+  newBuf.__proto__ = Buffer.prototype
+  return newBuf
+}
+
+/*
+ * Need to make sure that buffer isn't trying to write out of bounds.
+ */
+function checkOffset (offset, ext, length) {
+  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
+  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
+}
+
+Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var val = this[offset]
+  var mul = 1
+  var i = 0
+  while (++i < byteLength && (mul *= 0x100)) {
+    val += this[offset + i] * mul
+  }
+
+  return val
+}
+
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    checkOffset(offset, byteLength, this.length)
+  }
+
+  var val = this[offset + --byteLength]
+  var mul = 1
+  while (byteLength > 0 && (mul *= 0x100)) {
+    val += this[offset + --byteLength] * mul
+  }
+
+  return val
+}
+
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 1, this.length)
+  return this[offset]
+}
+
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  return this[offset] | (this[offset + 1] << 8)
+}
+
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  return (this[offset] << 8) | this[offset + 1]
+}
+
+Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return ((this[offset]) |
+      (this[offset + 1] << 8) |
+      (this[offset + 2] << 16)) +
+      (this[offset + 3] * 0x1000000)
+}
+
+Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset] * 0x1000000) +
+    ((this[offset + 1] << 16) |
+    (this[offset + 2] << 8) |
+    this[offset + 3])
+}
+
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var val = this[offset]
+  var mul = 1
+  var i = 0
+  while (++i < byteLength && (mul *= 0x100)) {
+    val += this[offset + i] * mul
+  }
+  mul *= 0x80
+
+  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+  return val
+}
+
+Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var i = byteLength
+  var mul = 1
+  var val = this[offset + --i]
+  while (i > 0 && (mul *= 0x100)) {
+    val += this[offset + --i] * mul
+  }
+  mul *= 0x80
+
+  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+  return val
+}
+
+Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 1, this.length)
+  if (!(this[offset] & 0x80)) return (this[offset])
+  return ((0xff - this[offset] + 1) * -1)
+}
+
+Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  var val = this[offset] | (this[offset + 1] << 8)
+  return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  var val = this[offset + 1] | (this[offset] << 8)
+  return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset]) |
+    (this[offset + 1] << 8) |
+    (this[offset + 2] << 16) |
+    (this[offset + 3] << 24)
+}
+
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset] << 24) |
+    (this[offset + 1] << 16) |
+    (this[offset + 2] << 8) |
+    (this[offset + 3])
+}
+
+Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+  return ieee754.read(this, offset, true, 23, 4)
+}
+
+Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+  return ieee754.read(this, offset, false, 23, 4)
+}
+
+Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 8, this.length)
+  return ieee754.read(this, offset, true, 52, 8)
+}
+
+Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 8, this.length)
+  return ieee754.read(this, offset, false, 52, 8)
+}
+
+function checkInt (buf, value, offset, ext, max, min) {
+  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
+  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
+  if (offset + ext > buf.length) throw new RangeError('Index out of range')
+}
+
+Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    var maxBytes = Math.pow(2, 8 * byteLength) - 1
+    checkInt(this, value, offset, byteLength, maxBytes, 0)
+  }
+
+  var mul = 1
+  var i = 0
+  this[offset] = value & 0xFF
+  while (++i < byteLength && (mul *= 0x100)) {
+    this[offset + i] = (value / mul) & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    var maxBytes = Math.pow(2, 8 * byteLength) - 1
+    checkInt(this, value, offset, byteLength, maxBytes, 0)
+  }
+
+  var i = byteLength - 1
+  var mul = 1
+  this[offset + i] = value & 0xFF
+  while (--i >= 0 && (mul *= 0x100)) {
+    this[offset + i] = (value / mul) & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
+  this[offset] = (value & 0xff)
+  return offset + 1
+}
+
+Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  return offset + 2
+}
+
+Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+  this[offset] = (value >>> 8)
+  this[offset + 1] = (value & 0xff)
+  return offset + 2
+}
+
+Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+  this[offset + 3] = (value >>> 24)
+  this[offset + 2] = (value >>> 16)
+  this[offset + 1] = (value >>> 8)
+  this[offset] = (value & 0xff)
+  return offset + 4
+}
+
+Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+  this[offset] = (value >>> 24)
+  this[offset + 1] = (value >>> 16)
+  this[offset + 2] = (value >>> 8)
+  this[offset + 3] = (value & 0xff)
+  return offset + 4
+}
+
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    var limit = Math.pow(2, (8 * byteLength) - 1)
+
+    checkInt(this, value, offset, byteLength, limit - 1, -limit)
+  }
+
+  var i = 0
+  var mul = 1
+  var sub = 0
+  this[offset] = value & 0xFF
+  while (++i < byteLength && (mul *= 0x100)) {
+    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
+      sub = 1
+    }
+    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    var limit = Math.pow(2, (8 * byteLength) - 1)
+
+    checkInt(this, value, offset, byteLength, limit - 1, -limit)
+  }
+
+  var i = byteLength - 1
+  var mul = 1
+  var sub = 0
+  this[offset + i] = value & 0xFF
+  while (--i >= 0 && (mul *= 0x100)) {
+    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
+      sub = 1
+    }
+    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
+  if (value < 0) value = 0xff + value + 1
+  this[offset] = (value & 0xff)
+  return offset + 1
+}
+
+Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  return offset + 2
+}
+
+Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+  this[offset] = (value >>> 8)
+  this[offset + 1] = (value & 0xff)
+  return offset + 2
+}
+
+Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  this[offset + 2] = (value >>> 16)
+  this[offset + 3] = (value >>> 24)
+  return offset + 4
+}
+
+Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+  if (value < 0) value = 0xffffffff + value + 1
+  this[offset] = (value >>> 24)
+  this[offset + 1] = (value >>> 16)
+  this[offset + 2] = (value >>> 8)
+  this[offset + 3] = (value & 0xff)
+  return offset + 4
+}
+
+function checkIEEE754 (buf, value, offset, ext, max, min) {
+  if (offset + ext > buf.length) throw new RangeError('Index out of range')
+  if (offset < 0) throw new RangeError('Index out of range')
+}
+
+function writeFloat (buf, value, offset, littleEndian, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
+  }
+  ieee754.write(buf, value, offset, littleEndian, 23, 4)
+  return offset + 4
+}
+
+Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
+  return writeFloat(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
+  return writeFloat(this, value, offset, false, noAssert)
+}
+
+function writeDouble (buf, value, offset, littleEndian, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
+  }
+  ieee754.write(buf, value, offset, littleEndian, 52, 8)
+  return offset + 8
+}
+
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+  return writeDouble(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+  return writeDouble(this, value, offset, false, noAssert)
+}
+
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function copy (target, targetStart, start, end) {
+  if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
+  if (!start) start = 0
+  if (!end && end !== 0) end = this.length
+  if (targetStart >= target.length) targetStart = target.length
+  if (!targetStart) targetStart = 0
+  if (end > 0 && end < start) end = start
+
+  // Copy 0 bytes; we're done
+  if (end === start) return 0
+  if (target.length === 0 || this.length === 0) return 0
+
+  // Fatal error conditions
+  if (targetStart < 0) {
+    throw new RangeError('targetStart out of bounds')
+  }
+  if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
+  if (end < 0) throw new RangeError('sourceEnd out of bounds')
+
+  // Are we oob?
+  if (end > this.length) end = this.length
+  if (target.length - targetStart < end - start) {
+    end = target.length - targetStart + start
+  }
+
+  var len = end - start
+
+  if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
+    // Use built-in when available, missing from IE11
+    this.copyWithin(targetStart, start, end)
+  } else if (this === target && start < targetStart && targetStart < end) {
+    // descending copy from end
+    for (var i = len - 1; i >= 0; --i) {
+      target[i + targetStart] = this[i + start]
+    }
+  } else {
+    Uint8Array.prototype.set.call(
+      target,
+      this.subarray(start, end),
+      targetStart
+    )
+  }
+
+  return len
+}
+
+// Usage:
+//    buffer.fill(number[, offset[, end]])
+//    buffer.fill(buffer[, offset[, end]])
+//    buffer.fill(string[, offset[, end]][, encoding])
+Buffer.prototype.fill = function fill (val, start, end, encoding) {
+  // Handle string cases:
+  if (typeof val === 'string') {
+    if (typeof start === 'string') {
+      encoding = start
+      start = 0
+      end = this.length
+    } else if (typeof end === 'string') {
+      encoding = end
+      end = this.length
+    }
+    if (encoding !== undefined && typeof encoding !== 'string') {
+      throw new TypeError('encoding must be a string')
+    }
+    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
+      throw new TypeError('Unknown encoding: ' + encoding)
+    }
+    if (val.length === 1) {
+      var code = val.charCodeAt(0)
+      if ((encoding === 'utf8' && code < 128) ||
+          encoding === 'latin1') {
+        // Fast path: If `val` fits into a single byte, use that numeric value.
+        val = code
+      }
+    }
+  } else if (typeof val === 'number') {
+    val = val & 255
+  }
+
+  // Invalid ranges are not set to a default, so can range check early.
+  if (start < 0 || this.length < start || this.length < end) {
+    throw new RangeError('Out of range index')
+  }
+
+  if (end <= start) {
+    return this
+  }
+
+  start = start >>> 0
+  end = end === undefined ? this.length : end >>> 0
+
+  if (!val) val = 0
+
+  var i
+  if (typeof val === 'number') {
+    for (i = start; i < end; ++i) {
+      this[i] = val
+    }
+  } else {
+    var bytes = Buffer.isBuffer(val)
+      ? val
+      : Buffer.from(val, encoding)
+    var len = bytes.length
+    if (len === 0) {
+      throw new TypeError('The value "' + val +
+        '" is invalid for argument "value"')
+    }
+    for (i = 0; i < end - start; ++i) {
+      this[i + start] = bytes[i % len]
+    }
+  }
+
+  return this
+}
+
+// HELPER FUNCTIONS
+// ================
+
+var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
+
+function base64clean (str) {
+  // Node takes equal signs as end of the Base64 encoding
+  str = str.split('=')[0]
+  // Node strips out invalid characters like \n and \t from the string, base64-js does not
+  str = str.trim().replace(INVALID_BASE64_RE, '')
+  // Node converts strings with length < 2 to ''
+  if (str.length < 2) return ''
+  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
+  while (str.length % 4 !== 0) {
+    str = str + '='
+  }
+  return str
+}
+
+function toHex (n) {
+  if (n < 16) return '0' + n.toString(16)
+  return n.toString(16)
+}
+
+function utf8ToBytes (string, units) {
+  units = units || Infinity
+  var codePoint
+  var length = string.length
+  var leadSurrogate = null
+  var bytes = []
+
+  for (var i = 0; i < length; ++i) {
+    codePoint = string.charCodeAt(i)
+
+    // is surrogate component
+    if (codePoint > 0xD7FF && codePoint < 0xE000) {
+      // last char was a lead
+      if (!leadSurrogate) {
+        // no lead yet
+        if (codePoint > 0xDBFF) {
+          // unexpected trail
+          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+          continue
+        } else if (i + 1 === length) {
+          // unpaired lead
+          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+          continue
+        }
+
+        // valid lead
+        leadSurrogate = codePoint
+
+        continue
+      }
+
+      // 2 leads in a row
+      if (codePoint < 0xDC00) {
+        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+        leadSurrogate = codePoint
+        continue
+      }
+
+      // valid surrogate pair
+      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
+    } else if (leadSurrogate) {
+      // valid bmp char, but last char was a lead
+      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+    }
+
+    leadSurrogate = null
+
+    // encode utf8
+    if (codePoint < 0x80) {
+      if ((units -= 1) < 0) break
+      bytes.push(codePoint)
+    } else if (codePoint < 0x800) {
+      if ((units -= 2) < 0) break
+      bytes.push(
+        codePoint >> 0x6 | 0xC0,
+        codePoint & 0x3F | 0x80
+      )
+    } else if (codePoint < 0x10000) {
+      if ((units -= 3) < 0) break
+      bytes.push(
+        codePoint >> 0xC | 0xE0,
+        codePoint >> 0x6 & 0x3F | 0x80,
+        codePoint & 0x3F | 0x80
+      )
+    } else if (codePoint < 0x110000) {
+      if ((units -= 4) < 0) break
+      bytes.push(
+        codePoint >> 0x12 | 0xF0,
+        codePoint >> 0xC & 0x3F | 0x80,
+        codePoint >> 0x6 & 0x3F | 0x80,
+        codePoint & 0x3F | 0x80
+      )
+    } else {
+      throw new Error('Invalid code point')
+    }
+  }
+
+  return bytes
+}
+
+function asciiToBytes (str) {
+  var byteArray = []
+  for (var i = 0; i < str.length; ++i) {
+    // Node's code seems to be doing this and not & 0x7F..
+    byteArray.push(str.charCodeAt(i) & 0xFF)
+  }
+  return byteArray
+}
+
+function utf16leToBytes (str, units) {
+  var c, hi, lo
+  var byteArray = []
+  for (var i = 0; i < str.length; ++i) {
+    if ((units -= 2) < 0) break
+
+    c = str.charCodeAt(i)
+    hi = c >> 8
+    lo = c % 256
+    byteArray.push(lo)
+    byteArray.push(hi)
+  }
+
+  return byteArray
+}
+
+function base64ToBytes (str) {
+  return base64.toByteArray(base64clean(str))
+}
+
+function blitBuffer (src, dst, offset, length) {
+  for (var i = 0; i < length; ++i) {
+    if ((i + offset >= dst.length) || (i >= src.length)) break
+    dst[i + offset] = src[i]
+  }
+  return i
+}
+
+// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
+// the `instanceof` check but they should be treated as of that type.
+// See: https://github.com/feross/buffer/issues/166
+function isInstance (obj, type) {
+  return obj instanceof type ||
+    (obj != null && obj.constructor != null && obj.constructor.name != null &&
+      obj.constructor.name === type.name)
+}
+function numberIsNaN (obj) {
+  // For IE11 support
+  return obj !== obj // eslint-disable-line no-self-compare
+}
+
+}).call(this,require("buffer").Buffer)
+},{"base64-js":1,"buffer":3,"ieee754":6}],4:[function(require,module,exports){
+(function (Buffer){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+
+function isArray(arg) {
+  if (Array.isArray) {
+    return Array.isArray(arg);
+  }
+  return objectToString(arg) === '[object Array]';
+}
+exports.isArray = isArray;
+
+function isBoolean(arg) {
+  return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
+
+function isNull(arg) {
+  return arg === null;
+}
+exports.isNull = isNull;
+
+function isNullOrUndefined(arg) {
+  return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
+
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
+
+function isString(arg) {
+  return typeof arg === 'string';
+}
+exports.isString = isString;
+
+function isSymbol(arg) {
+  return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
+
+function isUndefined(arg) {
+  return arg === void 0;
+}
+exports.isUndefined = isUndefined;
+
+function isRegExp(re) {
+  return objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
+
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
+
+function isDate(d) {
+  return objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
+
+function isError(e) {
+  return (objectToString(e) === '[object Error]' || e instanceof Error);
+}
+exports.isError = isError;
+
+function isFunction(arg) {
+  return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
+
+function isPrimitive(arg) {
+  return arg === null ||
+         typeof arg === 'boolean' ||
+         typeof arg === 'number' ||
+         typeof arg === 'string' ||
+         typeof arg === 'symbol' ||  // ES6 symbol
+         typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
+
+exports.isBuffer = Buffer.isBuffer;
+
+function objectToString(o) {
+  return Object.prototype.toString.call(o);
+}
+
+}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
+},{"../../is-buffer/index.js":9}],5:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var objectCreate = Object.create || objectCreatePolyfill
+var objectKeys = Object.keys || objectKeysPolyfill
+var bind = Function.prototype.bind || functionBindPolyfill
+
+function EventEmitter() {
+  if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) {
+    this._events = objectCreate(null);
+    this._eventsCount = 0;
+  }
+
+  this._maxListeners = this._maxListeners || undefined;
+}
+module.exports = EventEmitter;
+
+// Backwards-compat with node 0.10.x
+EventEmitter.EventEmitter = EventEmitter;
+
+EventEmitter.prototype._events = undefined;
+EventEmitter.prototype._maxListeners = undefined;
+
+// By default EventEmitters will print a warning if more than 10 listeners are
+// added to it. This is a useful default which helps finding memory leaks.
+var defaultMaxListeners = 10;
+
+var hasDefineProperty;
+try {
+  var o = {};
+  if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 });
+  hasDefineProperty = o.x === 0;
+} catch (err) { hasDefineProperty = false }
+if (hasDefineProperty) {
+  Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
+    enumerable: true,
+    get: function() {
+      return defaultMaxListeners;
+    },
+    set: function(arg) {
+      // check whether the input is a positive number (whose value is zero or
+      // greater and not a NaN).
+      if (typeof arg !== 'number' || arg < 0 || arg !== arg)
+        throw new TypeError('"defaultMaxListeners" must be a positive number');
+      defaultMaxListeners = arg;
+    }
+  });
+} else {
+  EventEmitter.defaultMaxListeners = defaultMaxListeners;
+}
+
+// Obviously not all Emitters should be limited to 10. This function allows
+// that to be increased. Set to zero for unlimited.
+EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
+  if (typeof n !== 'number' || n < 0 || isNaN(n))
+    throw new TypeError('"n" argument must be a positive number');
+  this._maxListeners = n;
+  return this;
+};
+
+function $getMaxListeners(that) {
+  if (that._maxListeners === undefined)
+    return EventEmitter.defaultMaxListeners;
+  return that._maxListeners;
+}
+
+EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
+  return $getMaxListeners(this);
+};
+
+// These standalone emit* functions are used to optimize calling of event
+// handlers for fast cases because emit() itself often has a variable number of
+// arguments and can be deoptimized because of that. These functions always have
+// the same number of arguments and thus do not get deoptimized, so the code
+// inside them can execute faster.
+function emitNone(handler, isFn, self) {
+  if (isFn)
+    handler.call(self);
+  else {
+    var len = handler.length;
+    var listeners = arrayClone(handler, len);
+    for (var i = 0; i < len; ++i)
+      listeners[i].call(self);
+  }
+}
+function emitOne(handler, isFn, self, arg1) {
+  if (isFn)
+    handler.call(self, arg1);
+  else {
+    var len = handler.length;
+    var listeners = arrayClone(handler, len);
+    for (var i = 0; i < len; ++i)
+      listeners[i].call(self, arg1);
+  }
+}
+function emitTwo(handler, isFn, self, arg1, arg2) {
+  if (isFn)
+    handler.call(self, arg1, arg2);
+  else {
+    var len = handler.length;
+    var listeners = arrayClone(handler, len);
+    for (var i = 0; i < len; ++i)
+      listeners[i].call(self, arg1, arg2);
+  }
+}
+function emitThree(handler, isFn, self, arg1, arg2, arg3) {
+  if (isFn)
+    handler.call(self, arg1, arg2, arg3);
+  else {
+    var len = handler.length;
+    var listeners = arrayClone(handler, len);
+    for (var i = 0; i < len; ++i)
+      listeners[i].call(self, arg1, arg2, arg3);
+  }
+}
+
+function emitMany(handler, isFn, self, args) {
+  if (isFn)
+    handler.apply(self, args);
+  else {
+    var len = handler.length;
+    var listeners = arrayClone(handler, len);
+    for (var i = 0; i < len; ++i)
+      listeners[i].apply(self, args);
+  }
+}
+
+EventEmitter.prototype.emit = function emit(type) {
+  var er, handler, len, args, i, events;
+  var doError = (type === 'error');
+
+  events = this._events;
+  if (events)
+    doError = (doError && events.error == null);
+  else if (!doError)
+    return false;
+
+  // If there is no 'error' event listener then throw.
+  if (doError) {
+    if (arguments.length > 1)
+      er = arguments[1];
+    if (er instanceof Error) {
+      throw er; // Unhandled 'error' event
+    } else {
+      // At least give some kind of context to the user
+      var err = new Error('Unhandled "error" event. (' + er + ')');
+      err.context = er;
+      throw err;
+    }
+    return false;
+  }
+
+  handler = events[type];
+
+  if (!handler)
+    return false;
+
+  var isFn = typeof handler === 'function';
+  len = arguments.length;
+  switch (len) {
+      // fast cases
+    case 1:
+      emitNone(handler, isFn, this);
+      break;
+    case 2:
+      emitOne(handler, isFn, this, arguments[1]);
+      break;
+    case 3:
+      emitTwo(handler, isFn, this, arguments[1], arguments[2]);
+      break;
+    case 4:
+      emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]);
+      break;
+      // slower
+    default:
+      args = new Array(len - 1);
+      for (i = 1; i < len; i++)
+        args[i - 1] = arguments[i];
+      emitMany(handler, isFn, this, args);
+  }
+
+  return true;
+};
+
+function _addListener(target, type, listener, prepend) {
+  var m;
+  var events;
+  var existing;
+
+  if (typeof listener !== 'function')
+    throw new TypeError('"listener" argument must be a function');
+
+  events = target._events;
+  if (!events) {
+    events = target._events = objectCreate(null);
+    target._eventsCount = 0;
+  } else {
+    // To avoid recursion in the case that type === "newListener"! Before
+    // adding it to the listeners, first emit "newListener".
+    if (events.newListener) {
+      target.emit('newListener', type,
+          listener.listener ? listener.listener : listener);
+
+      // Re-assign `events` because a newListener handler could have caused the
+      // this._events to be assigned to a new object
+      events = target._events;
+    }
+    existing = events[type];
+  }
+
+  if (!existing) {
+    // Optimize the case of one listener. Don't need the extra array object.
+    existing = events[type] = listener;
+    ++target._eventsCount;
+  } else {
+    if (typeof existing === 'function') {
+      // Adding the second element, need to change to array.
+      existing = events[type] =
+          prepend ? [listener, existing] : [existing, listener];
+    } else {
+      // If we've already got an array, just append.
+      if (prepend) {
+        existing.unshift(listener);
+      } else {
+        existing.push(listener);
+      }
+    }
+
+    // Check for listener leak
+    if (!existing.warned) {
+      m = $getMaxListeners(target);
+      if (m && m > 0 && existing.length > m) {
+        existing.warned = true;
+        var w = new Error('Possible EventEmitter memory leak detected. ' +
+            existing.length + ' "' + String(type) + '" listeners ' +
+            'added. Use emitter.setMaxListeners() to ' +
+            'increase limit.');
+        w.name = 'MaxListenersExceededWarning';
+        w.emitter = target;
+        w.type = type;
+        w.count = existing.length;
+        if (typeof console === 'object' && console.warn) {
+          console.warn('%s: %s', w.name, w.message);
+        }
+      }
+    }
+  }
+
+  return target;
+}
+
+EventEmitter.prototype.addListener = function addListener(type, listener) {
+  return _addListener(this, type, listener, false);
+};
+
+EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+
+EventEmitter.prototype.prependListener =
+    function prependListener(type, listener) {
+      return _addListener(this, type, listener, true);
+    };
+
+function onceWrapper() {
+  if (!this.fired) {
+    this.target.removeListener(this.type, this.wrapFn);
+    this.fired = true;
+    switch (arguments.length) {
+      case 0:
+        return this.listener.call(this.target);
+      case 1:
+        return this.listener.call(this.target, arguments[0]);
+      case 2:
+        return this.listener.call(this.target, arguments[0], arguments[1]);
+      case 3:
+        return this.listener.call(this.target, arguments[0], arguments[1],
+            arguments[2]);
+      default:
+        var args = new Array(arguments.length);
+        for (var i = 0; i < args.length; ++i)
+          args[i] = arguments[i];
+        this.listener.apply(this.target, args);
+    }
+  }
+}
+
+function _onceWrap(target, type, listener) {
+  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
+  var wrapped = bind.call(onceWrapper, state);
+  wrapped.listener = listener;
+  state.wrapFn = wrapped;
+  return wrapped;
+}
+
+EventEmitter.prototype.once = function once(type, listener) {
+  if (typeof listener !== 'function')
+    throw new TypeError('"listener" argument must be a function');
+  this.on(type, _onceWrap(this, type, listener));
+  return this;
+};
+
+EventEmitter.prototype.prependOnceListener =
+    function prependOnceListener(type, listener) {
+      if (typeof listener !== 'function')
+        throw new TypeError('"listener" argument must be a function');
+      this.prependListener(type, _onceWrap(this, type, listener));
+      return this;
+    };
+
+// Emits a 'removeListener' event if and only if the listener was removed.
+EventEmitter.prototype.removeListener =
+    function removeListener(type, listener) {
+      var list, events, position, i, originalListener;
+
+      if (typeof listener !== 'function')
+        throw new TypeError('"listener" argument must be a function');
+
+      events = this._events;
+      if (!events)
+        return this;
+
+      list = events[type];
+      if (!list)
+        return this;
+
+      if (list === listener || list.listener === listener) {
+        if (--this._eventsCount === 0)
+          this._events = objectCreate(null);
+        else {
+          delete events[type];
+          if (events.removeListener)
+            this.emit('removeListener', type, list.listener || listener);
+        }
+      } else if (typeof list !== 'function') {
+        position = -1;
+
+        for (i = list.length - 1; i >= 0; i--) {
+          if (list[i] === listener || list[i].listener === listener) {
+            originalListener = list[i].listener;
+            position = i;
+            break;
+          }
+        }
+
+        if (position < 0)
+          return this;
+
+        if (position === 0)
+          list.shift();
+        else
+          spliceOne(list, position);
+
+        if (list.length === 1)
+          events[type] = list[0];
+
+        if (events.removeListener)
+          this.emit('removeListener', type, originalListener || listener);
+      }
+
+      return this;
+    };
+
+EventEmitter.prototype.removeAllListeners =
+    function removeAllListeners(type) {
+      var listeners, events, i;
+
+      events = this._events;
+      if (!events)
+        return this;
+
+      // not listening for removeListener, no need to emit
+      if (!events.removeListener) {
+        if (arguments.length === 0) {
+          this._events = objectCreate(null);
+          this._eventsCount = 0;
+        } else if (events[type]) {
+          if (--this._eventsCount === 0)
+            this._events = objectCreate(null);
+          else
+            delete events[type];
+        }
+        return this;
+      }
+
+      // emit removeListener for all listeners on all events
+      if (arguments.length === 0) {
+        var keys = objectKeys(events);
+        var key;
+        for (i = 0; i < keys.length; ++i) {
+          key = keys[i];
+          if (key === 'removeListener') continue;
+          this.removeAllListeners(key);
+        }
+        this.removeAllListeners('removeListener');
+        this._events = objectCreate(null);
+        this._eventsCount = 0;
+        return this;
+      }
+
+      listeners = events[type];
+
+      if (typeof listeners === 'function') {
+        this.removeListener(type, listeners);
+      } else if (listeners) {
+        // LIFO order
+        for (i = listeners.length - 1; i >= 0; i--) {
+          this.removeListener(type, listeners[i]);
+        }
+      }
+
+      return this;
+    };
+
+function _listeners(target, type, unwrap) {
+  var events = target._events;
+
+  if (!events)
+    return [];
+
+  var evlistener = events[type];
+  if (!evlistener)
+    return [];
+
+  if (typeof evlistener === 'function')
+    return unwrap ? [evlistener.listener || evlistener] : [evlistener];
+
+  return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
+}
+
+EventEmitter.prototype.listeners = function listeners(type) {
+  return _listeners(this, type, true);
+};
+
+EventEmitter.prototype.rawListeners = function rawListeners(type) {
+  return _listeners(this, type, false);
+};
+
+EventEmitter.listenerCount = function(emitter, type) {
+  if (typeof emitter.listenerCount === 'function') {
+    return emitter.listenerCount(type);
+  } else {
+    return listenerCount.call(emitter, type);
+  }
+};
+
+EventEmitter.prototype.listenerCount = listenerCount;
+function listenerCount(type) {
+  var events = this._events;
+
+  if (events) {
+    var evlistener = events[type];
+
+    if (typeof evlistener === 'function') {
+      return 1;
+    } else if (evlistener) {
+      return evlistener.length;
+    }
+  }
+
+  return 0;
+}
+
+EventEmitter.prototype.eventNames = function eventNames() {
+  return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : [];
+};
+
+// About 1.5x faster than the two-arg version of Array#splice().
+function spliceOne(list, index) {
+  for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1)
+    list[i] = list[k];
+  list.pop();
+}
+
+function arrayClone(arr, n) {
+  var copy = new Array(n);
+  for (var i = 0; i < n; ++i)
+    copy[i] = arr[i];
+  return copy;
+}
+
+function unwrapListeners(arr) {
+  var ret = new Array(arr.length);
+  for (var i = 0; i < ret.length; ++i) {
+    ret[i] = arr[i].listener || arr[i];
+  }
+  return ret;
+}
+
+function objectCreatePolyfill(proto) {
+  var F = function() {};
+  F.prototype = proto;
+  return new F;
+}
+function objectKeysPolyfill(obj) {
+  var keys = [];
+  for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) {
+    keys.push(k);
+  }
+  return k;
+}
+function functionBindPolyfill(context) {
+  var fn = this;
+  return function () {
+    return fn.apply(context, arguments);
+  };
+}
+
+},{}],6:[function(require,module,exports){
+exports.read = function (buffer, offset, isLE, mLen, nBytes) {
+  var e, m
+  var eLen = (nBytes * 8) - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var nBits = -7
+  var i = isLE ? (nBytes - 1) : 0
+  var d = isLE ? -1 : 1
+  var s = buffer[offset + i]
+
+  i += d
+
+  e = s & ((1 << (-nBits)) - 1)
+  s >>= (-nBits)
+  nBits += eLen
+  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}
+
+  m = e & ((1 << (-nBits)) - 1)
+  e >>= (-nBits)
+  nBits += mLen
+  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}
+
+  if (e === 0) {
+    e = 1 - eBias
+  } else if (e === eMax) {
+    return m ? NaN : ((s ? -1 : 1) * Infinity)
+  } else {
+    m = m + Math.pow(2, mLen)
+    e = e - eBias
+  }
+  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
+}
+
+exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
+  var e, m, c
+  var eLen = (nBytes * 8) - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
+  var i = isLE ? 0 : (nBytes - 1)
+  var d = isLE ? 1 : -1
+  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
+
+  value = Math.abs(value)
+
+  if (isNaN(value) || value === Infinity) {
+    m = isNaN(value) ? 1 : 0
+    e = eMax
+  } else {
+    e = Math.floor(Math.log(value) / Math.LN2)
+    if (value * (c = Math.pow(2, -e)) < 1) {
+      e--
+      c *= 2
+    }
+    if (e + eBias >= 1) {
+      value += rt / c
+    } else {
+      value += rt * Math.pow(2, 1 - eBias)
+    }
+    if (value * c >= 2) {
+      e++
+      c /= 2
+    }
+
+    if (e + eBias >= eMax) {
+      m = 0
+      e = eMax
+    } else if (e + eBias >= 1) {
+      m = ((value * c) - 1) * Math.pow(2, mLen)
+      e = e + eBias
+    } else {
+      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
+      e = 0
+    }
+  }
+
+  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+
+  e = (e << mLen) | m
+  eLen += mLen
+  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+
+  buffer[offset + i - d] |= s * 128
+}
+
+},{}],7:[function(require,module,exports){
+(function (global){
+'use strict';
+var Mutation = global.MutationObserver || global.WebKitMutationObserver;
+
+var scheduleDrain;
+
+{
+  if (Mutation) {
+    var called = 0;
+    var observer = new Mutation(nextTick);
+    var element = global.document.createTextNode('');
+    observer.observe(element, {
+      characterData: true
+    });
+    scheduleDrain = function () {
+      element.data = (called = ++called % 2);
+    };
+  } else if (!global.setImmediate && typeof global.MessageChannel !== 'undefined') {
+    var channel = new global.MessageChannel();
+    channel.port1.onmessage = nextTick;
+    scheduleDrain = function () {
+      channel.port2.postMessage(0);
+    };
+  } else if ('document' in global && 'onreadystatechange' in global.document.createElement('script')) {
+    scheduleDrain = function () {
+
+      // Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted
+      // into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.
+      var scriptEl = global.document.createElement('script');
+      scriptEl.onreadystatechange = function () {
+        nextTick();
+
+        scriptEl.onreadystatechange = null;
+        scriptEl.parentNode.removeChild(scriptEl);
+        scriptEl = null;
+      };
+      global.document.documentElement.appendChild(scriptEl);
+    };
+  } else {
+    scheduleDrain = function () {
+      setTimeout(nextTick, 0);
+    };
+  }
+}
+
+var draining;
+var queue = [];
+//named nextTick for less confusing stack traces
+function nextTick() {
+  draining = true;
+  var i, oldQueue;
+  var len = queue.length;
+  while (len) {
+    oldQueue = queue;
+    queue = [];
+    i = -1;
+    while (++i < len) {
+      oldQueue[i]();
+    }
+    len = queue.length;
+  }
+  draining = false;
+}
+
+module.exports = immediate;
+function immediate(task) {
+  if (queue.push(task) === 1 && !draining) {
+    scheduleDrain();
+  }
+}
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],8:[function(require,module,exports){
+if (typeof Object.create === 'function') {
+  // implementation from standard node.js 'util' module
+  module.exports = function inherits(ctor, superCtor) {
+    if (superCtor) {
+      ctor.super_ = superCtor
+      ctor.prototype = Object.create(superCtor.prototype, {
+        constructor: {
+          value: ctor,
+          enumerable: false,
+          writable: true,
+          configurable: true
+        }
+      })
+    }
+  };
+} else {
+  // old school shim for old browsers
+  module.exports = function inherits(ctor, superCtor) {
+    if (superCtor) {
+      ctor.super_ = superCtor
+      var TempCtor = function () {}
+      TempCtor.prototype = superCtor.prototype
+      ctor.prototype = new TempCtor()
+      ctor.prototype.constructor = ctor
+    }
+  }
+}
+
+},{}],9:[function(require,module,exports){
+/*!
+ * Determine if an object is a Buffer
+ *
+ * @author   Feross Aboukhadijeh <https://feross.org>
+ * @license  MIT
+ */
+
+// The _isBuffer check is for Safari 5-7 support, because it's missing
+// Object.prototype.constructor. Remove this eventually
+module.exports = function (obj) {
+  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
+}
+
+function isBuffer (obj) {
+  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+}
+
+// For Node v0.10 support. Remove this eventually.
+function isSlowBuffer (obj) {
+  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
+}
+
+},{}],10:[function(require,module,exports){
+var toString = {}.toString;
+
+module.exports = Array.isArray || function (arr) {
+  return toString.call(arr) == '[object Array]';
+};
+
+},{}],11:[function(require,module,exports){
+'use strict';
+var utils = require('./utils');
+var support = require('./support');
+// private property
+var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+
+
+// public method for encoding
+exports.encode = function(input) {
+    var output = [];
+    var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
+    var i = 0, len = input.length, remainingBytes = len;
+
+    var isArray = utils.getTypeOf(input) !== "string";
+    while (i < input.length) {
+        remainingBytes = len - i;
+
+        if (!isArray) {
+            chr1 = input.charCodeAt(i++);
+            chr2 = i < len ? input.charCodeAt(i++) : 0;
+            chr3 = i < len ? input.charCodeAt(i++) : 0;
+        } else {
+            chr1 = input[i++];
+            chr2 = i < len ? input[i++] : 0;
+            chr3 = i < len ? input[i++] : 0;
+        }
+
+        enc1 = chr1 >> 2;
+        enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
+        enc3 = remainingBytes > 1 ? (((chr2 & 15) << 2) | (chr3 >> 6)) : 64;
+        enc4 = remainingBytes > 2 ? (chr3 & 63) : 64;
+
+        output.push(_keyStr.charAt(enc1) + _keyStr.charAt(enc2) + _keyStr.charAt(enc3) + _keyStr.charAt(enc4));
+
+    }
+
+    return output.join("");
+};
+
+// public method for decoding
+exports.decode = function(input) {
+    var chr1, chr2, chr3;
+    var enc1, enc2, enc3, enc4;
+    var i = 0, resultIndex = 0;
+
+    var dataUrlPrefix = "data:";
+
+    if (input.substr(0, dataUrlPrefix.length) === dataUrlPrefix) {
+        // This is a common error: people give a data url
+        // (data:image/png;base64,iVBOR...) with a {base64: true} and
+        // wonders why things don't work.
+        // We can detect that the string input looks like a data url but we
+        // *can't* be sure it is one: removing everything up to the comma would
+        // be too dangerous.
+        throw new Error("Invalid base64 input, it looks like a data url.");
+    }
+
+    input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
+
+    var totalLength = input.length * 3 / 4;
+    if(input.charAt(input.length - 1) === _keyStr.charAt(64)) {
+        totalLength--;
+    }
+    if(input.charAt(input.length - 2) === _keyStr.charAt(64)) {
+        totalLength--;
+    }
+    if (totalLength % 1 !== 0) {
+        // totalLength is not an integer, the length does not match a valid
+        // base64 content. That can happen if:
+        // - the input is not a base64 content
+        // - the input is *almost* a base64 content, with a extra chars at the
+        //   beginning or at the end
+        // - the input uses a base64 variant (base64url for example)
+        throw new Error("Invalid base64 input, bad content length.");
+    }
+    var output;
+    if (support.uint8array) {
+        output = new Uint8Array(totalLength|0);
+    } else {
+        output = new Array(totalLength|0);
+    }
+
+    while (i < input.length) {
+
+        enc1 = _keyStr.indexOf(input.charAt(i++));
+        enc2 = _keyStr.indexOf(input.charAt(i++));
+        enc3 = _keyStr.indexOf(input.charAt(i++));
+        enc4 = _keyStr.indexOf(input.charAt(i++));
+
+        chr1 = (enc1 << 2) | (enc2 >> 4);
+        chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
+        chr3 = ((enc3 & 3) << 6) | enc4;
+
+        output[resultIndex++] = chr1;
+
+        if (enc3 !== 64) {
+            output[resultIndex++] = chr2;
+        }
+        if (enc4 !== 64) {
+            output[resultIndex++] = chr3;
+        }
+
+    }
+
+    return output;
+};
+
+},{"./support":40,"./utils":42}],12:[function(require,module,exports){
+'use strict';
+
+var external = require("./external");
+var DataWorker = require('./stream/DataWorker');
+var DataLengthProbe = require('./stream/DataLengthProbe');
+var Crc32Probe = require('./stream/Crc32Probe');
+var DataLengthProbe = require('./stream/DataLengthProbe');
+
+/**
+ * Represent a compressed object, with everything needed to decompress it.
+ * @constructor
+ * @param {number} compressedSize the size of the data compressed.
+ * @param {number} uncompressedSize the size of the data after decompression.
+ * @param {number} crc32 the crc32 of the decompressed file.
+ * @param {object} compression the type of compression, see lib/compressions.js.
+ * @param {String|ArrayBuffer|Uint8Array|Buffer} data the compressed data.
+ */
+function CompressedObject(compressedSize, uncompressedSize, crc32, compression, data) {
+    this.compressedSize = compressedSize;
+    this.uncompressedSize = uncompressedSize;
+    this.crc32 = crc32;
+    this.compression = compression;
+    this.compressedContent = data;
+}
+
+CompressedObject.prototype = {
+    /**
+     * Create a worker to get the uncompressed content.
+     * @return {GenericWorker} the worker.
+     */
+    getContentWorker : function () {
+        var worker = new DataWorker(external.Promise.resolve(this.compressedContent))
+        .pipe(this.compression.uncompressWorker())
+        .pipe(new DataLengthProbe("data_length"));
+
+        var that = this;
+        worker.on("end", function () {
+            if(this.streamInfo['data_length'] !== that.uncompressedSize) {
+                throw new Error("Bug : uncompressed data size mismatch");
+            }
+        });
+        return worker;
+    },
+    /**
+     * Create a worker to get the compressed content.
+     * @return {GenericWorker} the worker.
+     */
+    getCompressedWorker : function () {
+        return new DataWorker(external.Promise.resolve(this.compressedContent))
+        .withStreamInfo("compressedSize", this.compressedSize)
+        .withStreamInfo("uncompressedSize", this.uncompressedSize)
+        .withStreamInfo("crc32", this.crc32)
+        .withStreamInfo("compression", this.compression)
+        ;
+    }
+};
+
+/**
+ * Chain the given worker with other workers to compress the content with the
+ * given compression.
+ * @param {GenericWorker} uncompressedWorker the worker to pipe.
+ * @param {Object} compression the compression object.
+ * @param {Object} compressionOptions the options to use when compressing.
+ * @return {GenericWorker} the new worker compressing the content.
+ */
+CompressedObject.createWorkerFrom = function (uncompressedWorker, compression, compressionOptions) {
+    return uncompressedWorker
+    .pipe(new Crc32Probe())
+    .pipe(new DataLengthProbe("uncompressedSize"))
+    .pipe(compression.compressWorker(compressionOptions))
+    .pipe(new DataLengthProbe("compressedSize"))
+    .withStreamInfo("compression", compression);
+};
+
+module.exports = CompressedObject;
+
+},{"./external":16,"./stream/Crc32Probe":35,"./stream/DataLengthProbe":36,"./stream/DataWorker":37}],13:[function(require,module,exports){
+'use strict';
+
+var GenericWorker = require("./stream/GenericWorker");
+
+exports.STORE = {
+    magic: "\x00\x00",
+    compressWorker : function (compressionOptions) {
+        return new GenericWorker("STORE compression");
+    },
+    uncompressWorker : function () {
+        return new GenericWorker("STORE decompression");
+    }
+};
+exports.DEFLATE = require('./flate');
+
+},{"./flate":17,"./stream/GenericWorker":38}],14:[function(require,module,exports){
+'use strict';
+
+var utils = require('./utils');
+
+/**
+ * The following functions come from pako, from pako/lib/zlib/crc32.js
+ * released under the MIT license, see pako https://github.com/nodeca/pako/
+ */
+
+// Use ordinary array, since untyped makes no boost here
+function makeTable() {
+    var c, table = [];
+
+    for(var n =0; n < 256; n++){
+        c = n;
+        for(var k =0; k < 8; k++){
+            c = ((c&1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
+        }
+        table[n] = c;
+    }
+
+    return table;
+}
+
+// Create table on load. Just 255 signed longs. Not a problem.
+var crcTable = makeTable();
+
+
+function crc32(crc, buf, len, pos) {
+    var t = crcTable, end = pos + len;
+
+    crc = crc ^ (-1);
+
+    for (var i = pos; i < end; i++ ) {
+        crc = (crc >>> 8) ^ t[(crc ^ buf[i]) & 0xFF];
+    }
+
+    return (crc ^ (-1)); // >>> 0;
+}
+
+// That's all for the pako functions.
+
+/**
+ * Compute the crc32 of a string.
+ * This is almost the same as the function crc32, but for strings. Using the
+ * same function for the two use cases leads to horrible performances.
+ * @param {Number} crc the starting value of the crc.
+ * @param {String} str the string to use.
+ * @param {Number} len the length of the string.
+ * @param {Number} pos the starting position for the crc32 computation.
+ * @return {Number} the computed crc32.
+ */
+function crc32str(crc, str, len, pos) {
+    var t = crcTable, end = pos + len;
+
+    crc = crc ^ (-1);
+
+    for (var i = pos; i < end; i++ ) {
+        crc = (crc >>> 8) ^ t[(crc ^ str.charCodeAt(i)) & 0xFF];
+    }
+
+    return (crc ^ (-1)); // >>> 0;
+}
+
+module.exports = function crc32wrapper(input, crc) {
+    if (typeof input === "undefined" || !input.length) {
+        return 0;
+    }
+
+    var isArray = utils.getTypeOf(input) !== "string";
+
+    if(isArray) {
+        return crc32(crc|0, input, input.length, 0);
+    } else {
+        return crc32str(crc|0, input, input.length, 0);
+    }
+};
+
+},{"./utils":42}],15:[function(require,module,exports){
+'use strict';
+exports.base64 = false;
+exports.binary = false;
+exports.dir = false;
+exports.createFolders = true;
+exports.date = null;
+exports.compression = null;
+exports.compressionOptions = null;
+exports.comment = null;
+exports.unixPermissions = null;
+exports.dosPermissions = null;
+
+},{}],16:[function(require,module,exports){
+/* global Promise */
+'use strict';
+
+// load the global object first:
+// - it should be better integrated in the system (unhandledRejection in node)
+// - the environment may have a custom Promise implementation (see zone.js)
+var ES6Promise = null;
+if (typeof Promise !== "undefined") {
+    ES6Promise = Promise;
+} else {
+    ES6Promise = require("lie");
+}
+
+/**
+ * Let the user use/change some implementations.
+ */
+module.exports = {
+    Promise: ES6Promise
+};
+
+},{"lie":46}],17:[function(require,module,exports){
+'use strict';
+var USE_TYPEDARRAY = (typeof Uint8Array !== 'undefined') && (typeof Uint16Array !== 'undefined') && (typeof Uint32Array !== 'undefined');
+
+var pako = require("pako");
+var utils = require("./utils");
+var GenericWorker = require("./stream/GenericWorker");
+
+var ARRAY_TYPE = USE_TYPEDARRAY ? "uint8array" : "array";
+
+exports.magic = "\x08\x00";
+
+/**
+ * Create a worker that uses pako to inflate/deflate.
+ * @constructor
+ * @param {String} action the name of the pako function to call : either "Deflate" or "Inflate".
+ * @param {Object} options the options to use when (de)compressing.
+ */
+function FlateWorker(action, options) {
+    GenericWorker.call(this, "FlateWorker/" + action);
+
+    this._pako = null;
+    this._pakoAction = action;
+    this._pakoOptions = options;
+    // the `meta` object from the last chunk received
+    // this allow this worker to pass around metadata
+    this.meta = {};
+}
+
+utils.inherits(FlateWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+FlateWorker.prototype.processChunk = function (chunk) {
+    this.meta = chunk.meta;
+    if (this._pako === null) {
+        this._createPako();
+    }
+    this._pako.push(utils.transformTo(ARRAY_TYPE, chunk.data), false);
+};
+
+/**
+ * @see GenericWorker.flush
+ */
+FlateWorker.prototype.flush = function () {
+    GenericWorker.prototype.flush.call(this);
+    if (this._pako === null) {
+        this._createPako();
+    }
+    this._pako.push([], true);
+};
+/**
+ * @see GenericWorker.cleanUp
+ */
+FlateWorker.prototype.cleanUp = function () {
+    GenericWorker.prototype.cleanUp.call(this);
+    this._pako = null;
+};
+
+/**
+ * Create the _pako object.
+ * TODO: lazy-loading this object isn't the best solution but it's the
+ * quickest. The best solution is to lazy-load the worker list. See also the
+ * issue #446.
+ */
+FlateWorker.prototype._createPako = function () {
+    this._pako = new pako[this._pakoAction]({
+        raw: true,
+        level: this._pakoOptions.level || -1 // default compression
+    });
+    var self = this;
+    this._pako.onData = function(data) {
+        self.push({
+            data : data,
+            meta : self.meta
+        });
+    };
+};
+
+exports.compressWorker = function (compressionOptions) {
+    return new FlateWorker("Deflate", compressionOptions);
+};
+exports.uncompressWorker = function () {
+    return new FlateWorker("Inflate", {});
+};
+
+},{"./stream/GenericWorker":38,"./utils":42,"pako":47}],18:[function(require,module,exports){
+'use strict';
+
+var utils = require('../utils');
+var GenericWorker = require('../stream/GenericWorker');
+var utf8 = require('../utf8');
+var crc32 = require('../crc32');
+var signature = require('../signature');
+
+/**
+ * Transform an integer into a string in hexadecimal.
+ * @private
+ * @param {number} dec the number to convert.
+ * @param {number} bytes the number of bytes to generate.
+ * @returns {string} the result.
+ */
+var decToHex = function(dec, bytes) {
+    var hex = "", i;
+    for (i = 0; i < bytes; i++) {
+        hex += String.fromCharCode(dec & 0xff);
+        dec = dec >>> 8;
+    }
+    return hex;
+};
+
+/**
+ * Generate the UNIX part of the external file attributes.
+ * @param {Object} unixPermissions the unix permissions or null.
+ * @param {Boolean} isDir true if the entry is a directory, false otherwise.
+ * @return {Number} a 32 bit integer.
+ *
+ * adapted from http://unix.stackexchange.com/questions/14705/the-zip-formats-external-file-attribute :
+ *
+ * TTTTsstrwxrwxrwx0000000000ADVSHR
+ * ^^^^____________________________ file type, see zipinfo.c (UNX_*)
+ *     ^^^_________________________ setuid, setgid, sticky
+ *        ^^^^^^^^^________________ permissions
+ *                 ^^^^^^^^^^______ not used ?
+ *                           ^^^^^^ DOS attribute bits : Archive, Directory, Volume label, System file, Hidden, Read only
+ */
+var generateUnixExternalFileAttr = function (unixPermissions, isDir) {
+
+    var result = unixPermissions;
+    if (!unixPermissions) {
+        // I can't use octal values in strict mode, hence the hexa.
+        //  040775 => 0x41fd
+        // 0100664 => 0x81b4
+        result = isDir ? 0x41fd : 0x81b4;
+    }
+    return (result & 0xFFFF) << 16;
+};
+
+/**
+ * Generate the DOS part of the external file attributes.
+ * @param {Object} dosPermissions the dos permissions or null.
+ * @param {Boolean} isDir true if the entry is a directory, false otherwise.
+ * @return {Number} a 32 bit integer.
+ *
+ * Bit 0     Read-Only
+ * Bit 1     Hidden
+ * Bit 2     System
+ * Bit 3     Volume Label
+ * Bit 4     Directory
+ * Bit 5     Archive
+ */
+var generateDosExternalFileAttr = function (dosPermissions, isDir) {
+
+    // the dir flag is already set for compatibility
+    return (dosPermissions || 0)  & 0x3F;
+};
+
+/**
+ * Generate the various parts used in the construction of the final zip file.
+ * @param {Object} streamInfo the hash with information about the compressed file.
+ * @param {Boolean} streamedContent is the content streamed ?
+ * @param {Boolean} streamingEnded is the stream finished ?
+ * @param {number} offset the current offset from the start of the zip file.
+ * @param {String} platform let's pretend we are this platform (change platform dependents fields)
+ * @param {Function} encodeFileName the function to encode the file name / comment.
+ * @return {Object} the zip parts.
+ */
+var generateZipParts = function(streamInfo, streamedContent, streamingEnded, offset, platform, encodeFileName) {
+    var file = streamInfo['file'],
+    compression = streamInfo['compression'],
+    useCustomEncoding = encodeFileName !== utf8.utf8encode,
+    encodedFileName = utils.transformTo("string", encodeFileName(file.name)),
+    utfEncodedFileName = utils.transformTo("string", utf8.utf8encode(file.name)),
+    comment = file.comment,
+    encodedComment = utils.transformTo("string", encodeFileName(comment)),
+    utfEncodedComment = utils.transformTo("string", utf8.utf8encode(comment)),
+    useUTF8ForFileName = utfEncodedFileName.length !== file.name.length,
+    useUTF8ForComment = utfEncodedComment.length !== comment.length,
+    dosTime,
+    dosDate,
+    extraFields = "",
+    unicodePathExtraField = "",
+    unicodeCommentExtraField = "",
+    dir = file.dir,
+    date = file.date;
+
+
+    var dataInfo = {
+        crc32 : 0,
+        compressedSize : 0,
+        uncompressedSize : 0
+    };
+
+    // if the content is streamed, the sizes/crc32 are only available AFTER
+    // the end of the stream.
+    if (!streamedContent || streamingEnded) {
+        dataInfo.crc32 = streamInfo['crc32'];
+        dataInfo.compressedSize = streamInfo['compressedSize'];
+        dataInfo.uncompressedSize = streamInfo['uncompressedSize'];
+    }
+
+    var bitflag = 0;
+    if (streamedContent) {
+        // Bit 3: the sizes/crc32 are set to zero in the local header.
+        // The correct values are put in the data descriptor immediately
+        // following the compressed data.
+        bitflag |= 0x0008;
+    }
+    if (!useCustomEncoding && (useUTF8ForFileName || useUTF8ForComment)) {
+        // Bit 11: Language encoding flag (EFS).
+        bitflag |= 0x0800;
+    }
+
+
+    var extFileAttr = 0;
+    var versionMadeBy = 0;
+    if (dir) {
+        // dos or unix, we set the dos dir flag
+        extFileAttr |= 0x00010;
+    }
+    if(platform === "UNIX") {
+        versionMadeBy = 0x031E; // UNIX, version 3.0
+        extFileAttr |= generateUnixExternalFileAttr(file.unixPermissions, dir);
+    } else { // DOS or other, fallback to DOS
+        versionMadeBy = 0x0014; // DOS, version 2.0
+        extFileAttr |= generateDosExternalFileAttr(file.dosPermissions, dir);
+    }
+
+    // date
+    // @see http://www.delorie.com/djgpp/doc/rbinter/it/52/13.html
+    // @see http://www.delorie.com/djgpp/doc/rbinter/it/65/16.html
+    // @see http://www.delorie.com/djgpp/doc/rbinter/it/66/16.html
+
+    dosTime = date.getUTCHours();
+    dosTime = dosTime << 6;
+    dosTime = dosTime | date.getUTCMinutes();
+    dosTime = dosTime << 5;
+    dosTime = dosTime | date.getUTCSeconds() / 2;
+
+    dosDate = date.getUTCFullYear() - 1980;
+    dosDate = dosDate << 4;
+    dosDate = dosDate | (date.getUTCMonth() + 1);
+    dosDate = dosDate << 5;
+    dosDate = dosDate | date.getUTCDate();
+
+    if (useUTF8ForFileName) {
+        // set the unicode path extra field. unzip needs at least one extra
+        // field to correctly handle unicode path, so using the path is as good
+        // as any other information. This could improve the situation with
+        // other archive managers too.
+        // This field is usually used without the utf8 flag, with a non
+        // unicode path in the header (winrar, winzip). This helps (a bit)
+        // with the messy Windows' default compressed folders feature but
+        // breaks on p7zip which doesn't seek the unicode path extra field.
+        // So for now, UTF-8 everywhere !
+        unicodePathExtraField =
+            // Version
+            decToHex(1, 1) +
+            // NameCRC32
+            decToHex(crc32(encodedFileName), 4) +
+            // UnicodeName
+            utfEncodedFileName;
+
+        extraFields +=
+            // Info-ZIP Unicode Path Extra Field
+            "\x75\x70" +
+            // size
+            decToHex(unicodePathExtraField.length, 2) +
+            // content
+            unicodePathExtraField;
+    }
+
+    if(useUTF8ForComment) {
+
+        unicodeCommentExtraField =
+            // Version
+            decToHex(1, 1) +
+            // CommentCRC32
+            decToHex(crc32(encodedComment), 4) +
+            // UnicodeName
+            utfEncodedComment;
+
+        extraFields +=
+            // Info-ZIP Unicode Path Extra Field
+            "\x75\x63" +
+            // size
+            decToHex(unicodeCommentExtraField.length, 2) +
+            // content
+            unicodeCommentExtraField;
+    }
+
+    var header = "";
+
+    // version needed to extract
+    header += "\x0A\x00";
+    // general purpose bit flag
+    header += decToHex(bitflag, 2);
+    // compression method
+    header += compression.magic;
+    // last mod file time
+    header += decToHex(dosTime, 2);
+    // last mod file date
+    header += decToHex(dosDate, 2);
+    // crc-32
+    header += decToHex(dataInfo.crc32, 4);
+    // compressed size
+    header += decToHex(dataInfo.compressedSize, 4);
+    // uncompressed size
+    header += decToHex(dataInfo.uncompressedSize, 4);
+    // file name length
+    header += decToHex(encodedFileName.length, 2);
+    // extra field length
+    header += decToHex(extraFields.length, 2);
+
+
+    var fileRecord = signature.LOCAL_FILE_HEADER + header + encodedFileName + extraFields;
+
+    var dirRecord = signature.CENTRAL_FILE_HEADER +
+        // version made by (00: DOS)
+        decToHex(versionMadeBy, 2) +
+        // file header (common to file and central directory)
+        header +
+        // file comment length
+        decToHex(encodedComment.length, 2) +
+        // disk number start
+        "\x00\x00" +
+        // internal file attributes TODO
+        "\x00\x00" +
+        // external file attributes
+        decToHex(extFileAttr, 4) +
+        // relative offset of local header
+        decToHex(offset, 4) +
+        // file name
+        encodedFileName +
+        // extra field
+        extraFields +
+        // file comment
+        encodedComment;
+
+    return {
+        fileRecord: fileRecord,
+        dirRecord: dirRecord
+    };
+};
+
+/**
+ * Generate the EOCD record.
+ * @param {Number} entriesCount the number of entries in the zip file.
+ * @param {Number} centralDirLength the length (in bytes) of the central dir.
+ * @param {Number} localDirLength the length (in bytes) of the local dir.
+ * @param {String} comment the zip file comment as a binary string.
+ * @param {Function} encodeFileName the function to encode the comment.
+ * @return {String} the EOCD record.
+ */
+var generateCentralDirectoryEnd = function (entriesCount, centralDirLength, localDirLength, comment, encodeFileName) {
+    var dirEnd = "";
+    var encodedComment = utils.transformTo("string", encodeFileName(comment));
+
+    // end of central dir signature
+    dirEnd = signature.CENTRAL_DIRECTORY_END +
+        // number of this disk
+        "\x00\x00" +
+        // number of the disk with the start of the central directory
+        "\x00\x00" +
+        // total number of entries in the central directory on this disk
+        decToHex(entriesCount, 2) +
+        // total number of entries in the central directory
+        decToHex(entriesCount, 2) +
+        // size of the central directory   4 bytes
+        decToHex(centralDirLength, 4) +
+        // offset of start of central directory with respect to the starting disk number
+        decToHex(localDirLength, 4) +
+        // .ZIP file comment length
+        decToHex(encodedComment.length, 2) +
+        // .ZIP file comment
+        encodedComment;
+
+    return dirEnd;
+};
+
+/**
+ * Generate data descriptors for a file entry.
+ * @param {Object} streamInfo the hash generated by a worker, containing information
+ * on the file entry.
+ * @return {String} the data descriptors.
+ */
+var generateDataDescriptors = function (streamInfo) {
+    var descriptor = "";
+    descriptor = signature.DATA_DESCRIPTOR +
+        // crc-32                          4 bytes
+        decToHex(streamInfo['crc32'], 4) +
+        // compressed size                 4 bytes
+        decToHex(streamInfo['compressedSize'], 4) +
+        // uncompressed size               4 bytes
+        decToHex(streamInfo['uncompressedSize'], 4);
+
+    return descriptor;
+};
+
+
+/**
+ * A worker to concatenate other workers to create a zip file.
+ * @param {Boolean} streamFiles `true` to stream the content of the files,
+ * `false` to accumulate it.
+ * @param {String} comment the comment to use.
+ * @param {String} platform the platform to use, "UNIX" or "DOS".
+ * @param {Function} encodeFileName the function to encode file names and comments.
+ */
+function ZipFileWorker(streamFiles, comment, platform, encodeFileName) {
+    GenericWorker.call(this, "ZipFileWorker");
+    // The number of bytes written so far. This doesn't count accumulated chunks.
+    this.bytesWritten = 0;
+    // The comment of the zip file
+    this.zipComment = comment;
+    // The platform "generating" the zip file.
+    this.zipPlatform = platform;
+    // the function to encode file names and comments.
+    this.encodeFileName = encodeFileName;
+    // Should we stream the content of the files ?
+    this.streamFiles = streamFiles;
+    // If `streamFiles` is false, we will need to accumulate the content of the
+    // files to calculate sizes / crc32 (and write them *before* the content).
+    // This boolean indicates if we are accumulating chunks (it will change a lot
+    // during the lifetime of this worker).
+    this.accumulate = false;
+    // The buffer receiving chunks when accumulating content.
+    this.contentBuffer = [];
+    // The list of generated directory records.
+    this.dirRecords = [];
+    // The offset (in bytes) from the beginning of the zip file for the current source.
+    this.currentSourceOffset = 0;
+    // The total number of entries in this zip file.
+    this.entriesCount = 0;
+    // the name of the file currently being added, null when handling the end of the zip file.
+    // Used for the emitted metadata.
+    this.currentFile = null;
+
+
+
+    this._sources = [];
+}
+utils.inherits(ZipFileWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.push
+ */
+ZipFileWorker.prototype.push = function (chunk) {
+
+    var currentFilePercent = chunk.meta.percent || 0;
+    var entriesCount = this.entriesCount;
+    var remainingFiles = this._sources.length;
+
+    if(this.accumulate) {
+        this.contentBuffer.push(chunk);
+    } else {
+        this.bytesWritten += chunk.data.length;
+
+        GenericWorker.prototype.push.call(this, {
+            data : chunk.data,
+            meta : {
+                currentFile : this.currentFile,
+                percent : entriesCount ? (currentFilePercent + 100 * (entriesCount - remainingFiles - 1)) / entriesCount : 100
+            }
+        });
+    }
+};
+
+/**
+ * The worker started a new source (an other worker).
+ * @param {Object} streamInfo the streamInfo object from the new source.
+ */
+ZipFileWorker.prototype.openedSource = function (streamInfo) {
+    this.currentSourceOffset = this.bytesWritten;
+    this.currentFile = streamInfo['file'].name;
+
+    var streamedContent = this.streamFiles && !streamInfo['file'].dir;
+
+    // don't stream folders (because they don't have any content)
+    if(streamedContent) {
+        var record = generateZipParts(streamInfo, streamedContent, false, this.currentSourceOffset, this.zipPlatform, this.encodeFileName);
+        this.push({
+            data : record.fileRecord,
+            meta : {percent:0}
+        });
+    } else {
+        // we need to wait for the whole file before pushing anything
+        this.accumulate = true;
+    }
+};
+
+/**
+ * The worker finished a source (an other worker).
+ * @param {Object} streamInfo the streamInfo object from the finished source.
+ */
+ZipFileWorker.prototype.closedSource = function (streamInfo) {
+    this.accumulate = false;
+    var streamedContent = this.streamFiles && !streamInfo['file'].dir;
+    var record = generateZipParts(streamInfo, streamedContent, true, this.currentSourceOffset, this.zipPlatform, this.encodeFileName);
+
+    this.dirRecords.push(record.dirRecord);
+    if(streamedContent) {
+        // after the streamed file, we put data descriptors
+        this.push({
+            data : generateDataDescriptors(streamInfo),
+            meta : {percent:100}
+        });
+    } else {
+        // the content wasn't streamed, we need to push everything now
+        // first the file record, then the content
+        this.push({
+            data : record.fileRecord,
+            meta : {percent:0}
+        });
+        while(this.contentBuffer.length) {
+            this.push(this.contentBuffer.shift());
+        }
+    }
+    this.currentFile = null;
+};
+
+/**
+ * @see GenericWorker.flush
+ */
+ZipFileWorker.prototype.flush = function () {
+
+    var localDirLength = this.bytesWritten;
+    for(var i = 0; i < this.dirRecords.length; i++) {
+        this.push({
+            data : this.dirRecords[i],
+            meta : {percent:100}
+        });
+    }
+    var centralDirLength = this.bytesWritten - localDirLength;
+
+    var dirEnd = generateCentralDirectoryEnd(this.dirRecords.length, centralDirLength, localDirLength, this.zipComment, this.encodeFileName);
+
+    this.push({
+        data : dirEnd,
+        meta : {percent:100}
+    });
+};
+
+/**
+ * Prepare the next source to be read.
+ */
+ZipFileWorker.prototype.prepareNextSource = function () {
+    this.previous = this._sources.shift();
+    this.openedSource(this.previous.streamInfo);
+    if (this.isPaused) {
+        this.previous.pause();
+    } else {
+        this.previous.resume();
+    }
+};
+
+/**
+ * @see GenericWorker.registerPrevious
+ */
+ZipFileWorker.prototype.registerPrevious = function (previous) {
+    this._sources.push(previous);
+    var self = this;
+
+    previous.on('data', function (chunk) {
+        self.processChunk(chunk);
+    });
+    previous.on('end', function () {
+        self.closedSource(self.previous.streamInfo);
+        if(self._sources.length) {
+            self.prepareNextSource();
+        } else {
+            self.end();
+        }
+    });
+    previous.on('error', function (e) {
+        self.error(e);
+    });
+    return this;
+};
+
+/**
+ * @see GenericWorker.resume
+ */
+ZipFileWorker.prototype.resume = function () {
+    if(!GenericWorker.prototype.resume.call(this)) {
+        return false;
+    }
+
+    if (!this.previous && this._sources.length) {
+        this.prepareNextSource();
+        return true;
+    }
+    if (!this.previous && !this._sources.length && !this.generatedError) {
+        this.end();
+        return true;
+    }
+};
+
+/**
+ * @see GenericWorker.error
+ */
+ZipFileWorker.prototype.error = function (e) {
+    var sources = this._sources;
+    if(!GenericWorker.prototype.error.call(this, e)) {
+        return false;
+    }
+    for(var i = 0; i < sources.length; i++) {
+        try {
+            sources[i].error(e);
+        } catch(e) {
+            // the `error` exploded, nothing to do
+        }
+    }
+    return true;
+};
+
+/**
+ * @see GenericWorker.lock
+ */
+ZipFileWorker.prototype.lock = function () {
+    GenericWorker.prototype.lock.call(this);
+    var sources = this._sources;
+    for(var i = 0; i < sources.length; i++) {
+        sources[i].lock();
+    }
+};
+
+module.exports = ZipFileWorker;
+
+},{"../crc32":14,"../signature":33,"../stream/GenericWorker":38,"../utf8":41,"../utils":42}],19:[function(require,module,exports){
+'use strict';
+
+var compressions = require('../compressions');
+var ZipFileWorker = require('./ZipFileWorker');
+
+/**
+ * Find the compression to use.
+ * @param {String} fileCompression the compression defined at the file level, if any.
+ * @param {String} zipCompression the compression defined at the load() level.
+ * @return {Object} the compression object to use.
+ */
+var getCompression = function (fileCompression, zipCompression) {
+
+    var compressionName = fileCompression || zipCompression;
+    var compression = compressions[compressionName];
+    if (!compression) {
+        throw new Error(compressionName + " is not a valid compression method !");
+    }
+    return compression;
+};
+
+/**
+ * Create a worker to generate a zip file.
+ * @param {JSZip} zip the JSZip instance at the right root level.
+ * @param {Object} options to generate the zip file.
+ * @param {String} comment the comment to use.
+ */
+exports.generateWorker = function (zip, options, comment) {
+
+    var zipFileWorker = new ZipFileWorker(options.streamFiles, comment, options.platform, options.encodeFileName);
+    var entriesCount = 0;
+    try {
+
+        zip.forEach(function (relativePath, file) {
+            entriesCount++;
+            var compression = getCompression(file.options.compression, options.compression);
+            var compressionOptions = file.options.compressionOptions || options.compressionOptions || {};
+            var dir = file.dir, date = file.date;
+
+            file._compressWorker(compression, compressionOptions)
+            .withStreamInfo("file", {
+                name : relativePath,
+                dir : dir,
+                date : date,
+                comment : file.comment || "",
+                unixPermissions : file.unixPermissions,
+                dosPermissions : file.dosPermissions
+            })
+            .pipe(zipFileWorker);
+        });
+        zipFileWorker.entriesCount = entriesCount;
+    } catch (e) {
+        zipFileWorker.error(e);
+    }
+
+    return zipFileWorker;
+};
+
+},{"../compressions":13,"./ZipFileWorker":18}],20:[function(require,module,exports){
+'use strict';
+
+/**
+ * Representation a of zip file in js
+ * @constructor
+ */
+function JSZip() {
+    // if this constructor is used without `new`, it adds `new` before itself:
+    if(!(this instanceof JSZip)) {
+        return new JSZip();
+    }
+
+    if(arguments.length) {
+        throw new Error("The constructor with parameters has been removed in JSZip 3.0, please check the upgrade guide.");
+    }
+
+    // object containing the files :
+    // {
+    //   "folder/" : {...},
+    //   "folder/data.txt" : {...}
+    // }
+    this.files = {};
+
+    this.comment = null;
+
+    // Where we are in the hierarchy
+    this.root = "";
+    this.clone = function() {
+        var newObj = new JSZip();
+        for (var i in this) {
+            if (typeof this[i] !== "function") {
+                newObj[i] = this[i];
+            }
+        }
+        return newObj;
+    };
+}
+JSZip.prototype = require('./object');
+JSZip.prototype.loadAsync = require('./load');
+JSZip.support = require('./support');
+JSZip.defaults = require('./defaults');
+
+// TODO find a better way to handle this version,
+// a require('package.json').version doesn't work with webpack, see #327
+JSZip.version = "3.5.0";
+
+JSZip.loadAsync = function (content, options) {
+    return new JSZip().loadAsync(content, options);
+};
+
+JSZip.external = require("./external");
+module.exports = JSZip;
+
+},{"./defaults":15,"./external":16,"./load":21,"./object":25,"./support":40}],21:[function(require,module,exports){
+'use strict';
+var utils = require('./utils');
+var external = require("./external");
+var utf8 = require('./utf8');
+var utils = require('./utils');
+var ZipEntries = require('./zipEntries');
+var Crc32Probe = require('./stream/Crc32Probe');
+var nodejsUtils = require("./nodejsUtils");
+
+/**
+ * Check the CRC32 of an entry.
+ * @param {ZipEntry} zipEntry the zip entry to check.
+ * @return {Promise} the result.
+ */
+function checkEntryCRC32(zipEntry) {
+    return new external.Promise(function (resolve, reject) {
+        var worker = zipEntry.decompressed.getContentWorker().pipe(new Crc32Probe());
+        worker.on("error", function (e) {
+            reject(e);
+        })
+        .on("end", function () {
+            if (worker.streamInfo.crc32 !== zipEntry.decompressed.crc32) {
+                reject(new Error("Corrupted zip : CRC32 mismatch"));
+            } else {
+                resolve();
+            }
+        })
+        .resume();
+    });
+}
+
+module.exports = function(data, options) {
+    var zip = this;
+    options = utils.extend(options || {}, {
+        base64: false,
+        checkCRC32: false,
+        optimizedBinaryString: false,
+        createFolders: false,
+        decodeFileName: utf8.utf8decode
+    });
+
+    if (nodejsUtils.isNode && nodejsUtils.isStream(data)) {
+        return external.Promise.reject(new Error("JSZip can't accept a stream when loading a zip file."));
+    }
+
+    return utils.prepareContent("the loaded zip file", data, true, options.optimizedBinaryString, options.base64)
+    .then(function(data) {
+        var zipEntries = new ZipEntries(options);
+        zipEntries.load(data);
+        return zipEntries;
+    }).then(function checkCRC32(zipEntries) {
+        var promises = [external.Promise.resolve(zipEntries)];
+        var files = zipEntries.files;
+        if (options.checkCRC32) {
+            for (var i = 0; i < files.length; i++) {
+                promises.push(checkEntryCRC32(files[i]));
+            }
+        }
+        return external.Promise.all(promises);
+    }).then(function addFiles(results) {
+        var zipEntries = results.shift();
+        var files = zipEntries.files;
+        for (var i = 0; i < files.length; i++) {
+            var input = files[i];
+            zip.file(input.fileNameStr, input.decompressed, {
+                binary: true,
+                optimizedBinaryString: true,
+                date: input.date,
+                dir: input.dir,
+                comment : input.fileCommentStr.length ? input.fileCommentStr : null,
+                unixPermissions : input.unixPermissions,
+                dosPermissions : input.dosPermissions,
+                createFolders: options.createFolders
+            });
+        }
+        if (zipEntries.zipComment.length) {
+            zip.comment = zipEntries.zipComment;
+        }
+
+        return zip;
+    });
+};
+
+},{"./external":16,"./nodejsUtils":22,"./stream/Crc32Probe":35,"./utf8":41,"./utils":42,"./zipEntries":43}],22:[function(require,module,exports){
+(function (Buffer){
+'use strict';
+
+module.exports = {
+    /**
+     * True if this is running in Nodejs, will be undefined in a browser.
+     * In a browser, browserify won't include this file and the whole module
+     * will be resolved an empty object.
+     */
+    isNode : typeof Buffer !== "undefined",
+    /**
+     * Create a new nodejs Buffer from an existing content.
+     * @param {Object} data the data to pass to the constructor.
+     * @param {String} encoding the encoding to use.
+     * @return {Buffer} a new Buffer.
+     */
+    newBufferFrom: function(data, encoding) {
+        if (Buffer.from && Buffer.from !== Uint8Array.from) {
+            return Buffer.from(data, encoding);
+        } else {
+            if (typeof data === "number") {
+                // Safeguard for old Node.js versions. On newer versions,
+                // Buffer.from(number) / Buffer(number, encoding) already throw.
+                throw new Error("The \"data\" argument must not be a number");
+            }
+            return new Buffer(data, encoding);
+        }
+    },
+    /**
+     * Create a new nodejs Buffer with the specified size.
+     * @param {Integer} size the size of the buffer.
+     * @return {Buffer} a new Buffer.
+     */
+    allocBuffer: function (size) {
+        if (Buffer.alloc) {
+            return Buffer.alloc(size);
+        } else {
+            var buf = new Buffer(size);
+            buf.fill(0);
+            return buf;
+        }
+    },
+    /**
+     * Find out if an object is a Buffer.
+     * @param {Object} b the object to test.
+     * @return {Boolean} true if the object is a Buffer, false otherwise.
+     */
+    isBuffer : function(b){
+        return Buffer.isBuffer(b);
+    },
+
+    isStream : function (obj) {
+        return obj &&
+            typeof obj.on === "function" &&
+            typeof obj.pause === "function" &&
+            typeof obj.resume === "function";
+    }
+};
+
+}).call(this,require("buffer").Buffer)
+},{"buffer":3}],23:[function(require,module,exports){
+"use strict";
+
+var utils = require('../utils');
+var GenericWorker = require('../stream/GenericWorker');
+
+/**
+ * A worker that use a nodejs stream as source.
+ * @constructor
+ * @param {String} filename the name of the file entry for this stream.
+ * @param {Readable} stream the nodejs stream.
+ */
+function NodejsStreamInputAdapter(filename, stream) {
+    GenericWorker.call(this, "Nodejs stream input adapter for " + filename);
+    this._upstreamEnded = false;
+    this._bindStream(stream);
+}
+
+utils.inherits(NodejsStreamInputAdapter, GenericWorker);
+
+/**
+ * Prepare the stream and bind the callbacks on it.
+ * Do this ASAP on node 0.10 ! A lazy binding doesn't always work.
+ * @param {Stream} stream the nodejs stream to use.
+ */
+NodejsStreamInputAdapter.prototype._bindStream = function (stream) {
+    var self = this;
+    this._stream = stream;
+    stream.pause();
+    stream
+    .on("data", function (chunk) {
+        self.push({
+            data: chunk,
+            meta : {
+                percent : 0
+            }
+        });
+    })
+    .on("error", function (e) {
+        if(self.isPaused) {
+            this.generatedError = e;
+        } else {
+            self.error(e);
+        }
+    })
+    .on("end", function () {
+        if(self.isPaused) {
+            self._upstreamEnded = true;
+        } else {
+            self.end();
+        }
+    });
+};
+NodejsStreamInputAdapter.prototype.pause = function () {
+    if(!GenericWorker.prototype.pause.call(this)) {
+        return false;
+    }
+    this._stream.pause();
+    return true;
+};
+NodejsStreamInputAdapter.prototype.resume = function () {
+    if(!GenericWorker.prototype.resume.call(this)) {
+        return false;
+    }
+
+    if(this._upstreamEnded) {
+        this.end();
+    } else {
+        this._stream.resume();
+    }
+
+    return true;
+};
+
+module.exports = NodejsStreamInputAdapter;
+
+},{"../stream/GenericWorker":38,"../utils":42}],24:[function(require,module,exports){
+'use strict';
+
+var Readable = require('readable-stream').Readable;
+
+var utils = require('../utils');
+utils.inherits(NodejsStreamOutputAdapter, Readable);
+
+/**
+* A nodejs stream using a worker as source.
+* @see the SourceWrapper in http://nodejs.org/api/stream.html
+* @constructor
+* @param {StreamHelper} helper the helper wrapping the worker
+* @param {Object} options the nodejs stream options
+* @param {Function} updateCb the update callback.
+*/
+function NodejsStreamOutputAdapter(helper, options, updateCb) {
+    Readable.call(this, options);
+    this._helper = helper;
+
+    var self = this;
+    helper.on("data", function (data, meta) {
+        if (!self.push(data)) {
+            self._helper.pause();
+        }
+        if(updateCb) {
+            updateCb(meta);
+        }
+    })
+    .on("error", function(e) {
+        self.emit('error', e);
+    })
+    .on("end", function () {
+        self.push(null);
+    });
+}
+
+
+NodejsStreamOutputAdapter.prototype._read = function() {
+    this._helper.resume();
+};
+
+module.exports = NodejsStreamOutputAdapter;
+
+},{"../utils":42,"readable-stream":26}],25:[function(require,module,exports){
+'use strict';
+var utf8 = require('./utf8');
+var utils = require('./utils');
+var GenericWorker = require('./stream/GenericWorker');
+var StreamHelper = require('./stream/StreamHelper');
+var defaults = require('./defaults');
+var CompressedObject = require('./compressedObject');
+var ZipObject = require('./zipObject');
+var generate = require("./generate");
+var nodejsUtils = require("./nodejsUtils");
+var NodejsStreamInputAdapter = require("./nodejs/NodejsStreamInputAdapter");
+
+
+/**
+ * Add a file in the current folder.
+ * @private
+ * @param {string} name the name of the file
+ * @param {String|ArrayBuffer|Uint8Array|Buffer} data the data of the file
+ * @param {Object} originalOptions the options of the file
+ * @return {Object} the new file.
+ */
+var fileAdd = function(name, data, originalOptions) {
+    // be sure sub folders exist
+    var dataType = utils.getTypeOf(data),
+        parent;
+
+
+    /*
+     * Correct options.
+     */
+
+    var o = utils.extend(originalOptions || {}, defaults);
+    o.date = o.date || new Date();
+    if (o.compression !== null) {
+        o.compression = o.compression.toUpperCase();
+    }
+
+    if (typeof o.unixPermissions === "string") {
+        o.unixPermissions = parseInt(o.unixPermissions, 8);
+    }
+
+    // UNX_IFDIR  0040000 see zipinfo.c
+    if (o.unixPermissions && (o.unixPermissions & 0x4000)) {
+        o.dir = true;
+    }
+    // Bit 4    Directory
+    if (o.dosPermissions && (o.dosPermissions & 0x0010)) {
+        o.dir = true;
+    }
+
+    if (o.dir) {
+        name = forceTrailingSlash(name);
+    }
+    if (o.createFolders && (parent = parentFolder(name))) {
+        folderAdd.call(this, parent, true);
+    }
+
+    var isUnicodeString = dataType === "string" && o.binary === false && o.base64 === false;
+    if (!originalOptions || typeof originalOptions.binary === "undefined") {
+        o.binary = !isUnicodeString;
+    }
+
+
+    var isCompressedEmpty = (data instanceof CompressedObject) && data.uncompressedSize === 0;
+
+    if (isCompressedEmpty || o.dir || !data || data.length === 0) {
+        o.base64 = false;
+        o.binary = true;
+        data = "";
+        o.compression = "STORE";
+        dataType = "string";
+    }
+
+    /*
+     * Convert content to fit.
+     */
+
+    var zipObjectContent = null;
+    if (data instanceof CompressedObject || data instanceof GenericWorker) {
+        zipObjectContent = data;
+    } else if (nodejsUtils.isNode && nodejsUtils.isStream(data)) {
+        zipObjectContent = new NodejsStreamInputAdapter(name, data);
+    } else {
+        zipObjectContent = utils.prepareContent(name, data, o.binary, o.optimizedBinaryString, o.base64);
+    }
+
+    var object = new ZipObject(name, zipObjectContent, o);
+    this.files[name] = object;
+    /*
+    TODO: we can't throw an exception because we have async promises
+    (we can have a promise of a Date() for example) but returning a
+    promise is useless because file(name, data) returns the JSZip
+    object for chaining. Should we break that to allow the user
+    to catch the error ?
+
+    return external.Promise.resolve(zipObjectContent)
+    .then(function () {
+        return object;
+    });
+    */
+};
+
+/**
+ * Find the parent folder of the path.
+ * @private
+ * @param {string} path the path to use
+ * @return {string} the parent folder, or ""
+ */
+var parentFolder = function (path) {
+    if (path.slice(-1) === '/') {
+        path = path.substring(0, path.length - 1);
+    }
+    var lastSlash = path.lastIndexOf('/');
+    return (lastSlash > 0) ? path.substring(0, lastSlash) : "";
+};
+
+/**
+ * Returns the path with a slash at the end.
+ * @private
+ * @param {String} path the path to check.
+ * @return {String} the path with a trailing slash.
+ */
+var forceTrailingSlash = function(path) {
+    // Check the name ends with a /
+    if (path.slice(-1) !== "/") {
+        path += "/"; // IE doesn't like substr(-1)
+    }
+    return path;
+};
+
+/**
+ * Add a (sub) folder in the current folder.
+ * @private
+ * @param {string} name the folder's name
+ * @param {boolean=} [createFolders] If true, automatically create sub
+ *  folders. Defaults to false.
+ * @return {Object} the new folder.
+ */
+var folderAdd = function(name, createFolders) {
+    createFolders = (typeof createFolders !== 'undefined') ? createFolders : defaults.createFolders;
+
+    name = forceTrailingSlash(name);
+
+    // Does this folder already exist?
+    if (!this.files[name]) {
+        fileAdd.call(this, name, null, {
+            dir: true,
+            createFolders: createFolders
+        });
+    }
+    return this.files[name];
+};
+
+/**
+* Cross-window, cross-Node-context regular expression detection
+* @param  {Object}  object Anything
+* @return {Boolean}        true if the object is a regular expression,
+* false otherwise
+*/
+function isRegExp(object) {
+    return Object.prototype.toString.call(object) === "[object RegExp]";
+}
+
+// return the actual prototype of JSZip
+var out = {
+    /**
+     * @see loadAsync
+     */
+    load: function() {
+        throw new Error("This method has been removed in JSZip 3.0, please check the upgrade guide.");
+    },
+
+
+    /**
+     * Call a callback function for each entry at this folder level.
+     * @param {Function} cb the callback function:
+     * function (relativePath, file) {...}
+     * It takes 2 arguments : the relative path and the file.
+     */
+    forEach: function(cb) {
+        var filename, relativePath, file;
+        for (filename in this.files) {
+            if (!this.files.hasOwnProperty(filename)) {
+                continue;
+            }
+            file = this.files[filename];
+            relativePath = filename.slice(this.root.length, filename.length);
+            if (relativePath && filename.slice(0, this.root.length) === this.root) { // the file is in the current root
+                cb(relativePath, file); // TODO reverse the parameters ? need to be clean AND consistent with the filter search fn...
+            }
+        }
+    },
+
+    /**
+     * Filter nested files/folders with the specified function.
+     * @param {Function} search the predicate to use :
+     * function (relativePath, file) {...}
+     * It takes 2 arguments : the relative path and the file.
+     * @return {Array} An array of matching elements.
+     */
+    filter: function(search) {
+        var result = [];
+        this.forEach(function (relativePath, entry) {
+            if (search(relativePath, entry)) { // the file matches the function
+                result.push(entry);
+            }
+
+        });
+        return result;
+    },
+
+    /**
+     * Add a file to the zip file, or search a file.
+     * @param   {string|RegExp} name The name of the file to add (if data is defined),
+     * the name of the file to find (if no data) or a regex to match files.
+     * @param   {String|ArrayBuffer|Uint8Array|Buffer} data  The file data, either raw or base64 encoded
+     * @param   {Object} o     File options
+     * @return  {JSZip|Object|Array} this JSZip object (when adding a file),
+     * a file (when searching by string) or an array of files (when searching by regex).
+     */
+    file: function(name, data, o) {
+        if (arguments.length === 1) {
+            if (isRegExp(name)) {
+                var regexp = name;
+                return this.filter(function(relativePath, file) {
+                    return !file.dir && regexp.test(relativePath);
+                });
+            }
+            else { // text
+                var obj = this.files[this.root + name];
+                if (obj && !obj.dir) {
+                    return obj;
+                } else {
+                    return null;
+                }
+            }
+        }
+        else { // more than one argument : we have data !
+            name = this.root + name;
+            fileAdd.call(this, name, data, o);
+        }
+        return this;
+    },
+
+    /**
+     * Add a directory to the zip file, or search.
+     * @param   {String|RegExp} arg The name of the directory to add, or a regex to search folders.
+     * @return  {JSZip} an object with the new directory as the root, or an array containing matching folders.
+     */
+    folder: function(arg) {
+        if (!arg) {
+            return this;
+        }
+
+        if (isRegExp(arg)) {
+            return this.filter(function(relativePath, file) {
+                return file.dir && arg.test(relativePath);
+            });
+        }
+
+        // else, name is a new folder
+        var name = this.root + arg;
+        var newFolder = folderAdd.call(this, name);
+
+        // Allow chaining by returning a new object with this folder as the root
+        var ret = this.clone();
+        ret.root = newFolder.name;
+        return ret;
+    },
+
+    /**
+     * Delete a file, or a directory and all sub-files, from the zip
+     * @param {string} name the name of the file to delete
+     * @return {JSZip} this JSZip object
+     */
+    remove: function(name) {
+        name = this.root + name;
+        var file = this.files[name];
+        if (!file) {
+            // Look for any folders
+            if (name.slice(-1) !== "/") {
+                name += "/";
+            }
+            file = this.files[name];
+        }
+
+        if (file && !file.dir) {
+            // file
+            delete this.files[name];
+        } else {
+            // maybe a folder, delete recursively
+            var kids = this.filter(function(relativePath, file) {
+                return file.name.slice(0, name.length) === name;
+            });
+            for (var i = 0; i < kids.length; i++) {
+                delete this.files[kids[i].name];
+            }
+        }
+
+        return this;
+    },
+
+    /**
+     * Generate the complete zip file
+     * @param {Object} options the options to generate the zip file :
+     * - compression, "STORE" by default.
+     * - type, "base64" by default. Values are : string, base64, uint8array, arraybuffer, blob.
+     * @return {String|Uint8Array|ArrayBuffer|Buffer|Blob} the zip file
+     */
+    generate: function(options) {
+        throw new Error("This method has been removed in JSZip 3.0, please check the upgrade guide.");
+    },
+
+    /**
+     * Generate the complete zip file as an internal stream.
+     * @param {Object} options the options to generate the zip file :
+     * - compression, "STORE" by default.
+     * - type, "base64" by default. Values are : string, base64, uint8array, arraybuffer, blob.
+     * @return {StreamHelper} the streamed zip file.
+     */
+    generateInternalStream: function(options) {
+      var worker, opts = {};
+      try {
+          opts = utils.extend(options || {}, {
+              streamFiles: false,
+              compression: "STORE",
+              compressionOptions : null,
+              type: "",
+              platform: "DOS",
+              comment: null,
+              mimeType: 'application/zip',
+              encodeFileName: utf8.utf8encode
+          });
+
+          opts.type = opts.type.toLowerCase();
+          opts.compression = opts.compression.toUpperCase();
+
+          // "binarystring" is preferred but the internals use "string".
+          if(opts.type === "binarystring") {
+            opts.type = "string";
+          }
+
+          if (!opts.type) {
+            throw new Error("No output type specified.");
+          }
+
+          utils.checkSupport(opts.type);
+
+          // accept nodejs `process.platform`
+          if(
+              opts.platform === 'darwin' ||
+              opts.platform === 'freebsd' ||
+              opts.platform === 'linux' ||
+              opts.platform === 'sunos'
+          ) {
+              opts.platform = "UNIX";
+          }
+          if (opts.platform === 'win32') {
+              opts.platform = "DOS";
+          }
+
+          var comment = opts.comment || this.comment || "";
+          worker = generate.generateWorker(this, opts, comment);
+      } catch (e) {
+        worker = new GenericWorker("error");
+        worker.error(e);
+      }
+      return new StreamHelper(worker, opts.type || "string", opts.mimeType);
+    },
+    /**
+     * Generate the complete zip file asynchronously.
+     * @see generateInternalStream
+     */
+    generateAsync: function(options, onUpdate) {
+        return this.generateInternalStream(options).accumulate(onUpdate);
+    },
+    /**
+     * Generate the complete zip file asynchronously.
+     * @see generateInternalStream
+     */
+    generateNodeStream: function(options, onUpdate) {
+        options = options || {};
+        if (!options.type) {
+            options.type = "nodebuffer";
+        }
+        return this.generateInternalStream(options).toNodejsStream(onUpdate);
+    }
+};
+module.exports = out;
+
+},{"./compressedObject":12,"./defaults":15,"./generate":19,"./nodejs/NodejsStreamInputAdapter":23,"./nodejsUtils":22,"./stream/GenericWorker":38,"./stream/StreamHelper":39,"./utf8":41,"./utils":42,"./zipObject":45}],26:[function(require,module,exports){
+/*
+ * This file is used by module bundlers (browserify/webpack/etc) when
+ * including a stream implementation. We use "readable-stream" to get a
+ * consistent behavior between nodejs versions but bundlers often have a shim
+ * for "stream". Using this shim greatly improve the compatibility and greatly
+ * reduce the final size of the bundle (only one stream implementation, not
+ * two).
+ */
+module.exports = require("stream");
+
+},{"stream":80}],27:[function(require,module,exports){
+'use strict';
+var DataReader = require('./DataReader');
+var utils = require('../utils');
+
+function ArrayReader(data) {
+    DataReader.call(this, data);
+	for(var i = 0; i < this.data.length; i++) {
+		data[i] = data[i] & 0xFF;
+	}
+}
+utils.inherits(ArrayReader, DataReader);
+/**
+ * @see DataReader.byteAt
+ */
+ArrayReader.prototype.byteAt = function(i) {
+    return this.data[this.zero + i];
+};
+/**
+ * @see DataReader.lastIndexOfSignature
+ */
+ArrayReader.prototype.lastIndexOfSignature = function(sig) {
+    var sig0 = sig.charCodeAt(0),
+        sig1 = sig.charCodeAt(1),
+        sig2 = sig.charCodeAt(2),
+        sig3 = sig.charCodeAt(3);
+    for (var i = this.length - 4; i >= 0; --i) {
+        if (this.data[i] === sig0 && this.data[i + 1] === sig1 && this.data[i + 2] === sig2 && this.data[i + 3] === sig3) {
+            return i - this.zero;
+        }
+    }
+
+    return -1;
+};
+/**
+ * @see DataReader.readAndCheckSignature
+ */
+ArrayReader.prototype.readAndCheckSignature = function (sig) {
+    var sig0 = sig.charCodeAt(0),
+        sig1 = sig.charCodeAt(1),
+        sig2 = sig.charCodeAt(2),
+        sig3 = sig.charCodeAt(3),
+        data = this.readData(4);
+    return sig0 === data[0] && sig1 === data[1] && sig2 === data[2] && sig3 === data[3];
+};
+/**
+ * @see DataReader.readData
+ */
+ArrayReader.prototype.readData = function(size) {
+    this.checkOffset(size);
+    if(size === 0) {
+        return [];
+    }
+    var result = this.data.slice(this.zero + this.index, this.zero + this.index + size);
+    this.index += size;
+    return result;
+};
+module.exports = ArrayReader;
+
+},{"../utils":42,"./DataReader":28}],28:[function(require,module,exports){
+'use strict';
+var utils = require('../utils');
+
+function DataReader(data) {
+    this.data = data; // type : see implementation
+    this.length = data.length;
+    this.index = 0;
+    this.zero = 0;
+}
+DataReader.prototype = {
+    /**
+     * Check that the offset will not go too far.
+     * @param {string} offset the additional offset to check.
+     * @throws {Error} an Error if the offset is out of bounds.
+     */
+    checkOffset: function(offset) {
+        this.checkIndex(this.index + offset);
+    },
+    /**
+     * Check that the specified index will not be too far.
+     * @param {string} newIndex the index to check.
+     * @throws {Error} an Error if the index is out of bounds.
+     */
+    checkIndex: function(newIndex) {
+        if (this.length < this.zero + newIndex || newIndex < 0) {
+            throw new Error("End of data reached (data length = " + this.length + ", asked index = " + (newIndex) + "). Corrupted zip ?");
+        }
+    },
+    /**
+     * Change the index.
+     * @param {number} newIndex The new index.
+     * @throws {Error} if the new index is out of the data.
+     */
+    setIndex: function(newIndex) {
+        this.checkIndex(newIndex);
+        this.index = newIndex;
+    },
+    /**
+     * Skip the next n bytes.
+     * @param {number} n the number of bytes to skip.
+     * @throws {Error} if the new index is out of the data.
+     */
+    skip: function(n) {
+        this.setIndex(this.index + n);
+    },
+    /**
+     * Get the byte at the specified index.
+     * @param {number} i the index to use.
+     * @return {number} a byte.
+     */
+    byteAt: function(i) {
+        // see implementations
+    },
+    /**
+     * Get the next number with a given byte size.
+     * @param {number} size the number of bytes to read.
+     * @return {number} the corresponding number.
+     */
+    readInt: function(size) {
+        var result = 0,
+            i;
+        this.checkOffset(size);
+        for (i = this.index + size - 1; i >= this.index; i--) {
+            result = (result << 8) + this.byteAt(i);
+        }
+        this.index += size;
+        return result;
+    },
+    /**
+     * Get the next string with a given byte size.
+     * @param {number} size the number of bytes to read.
+     * @return {string} the corresponding string.
+     */
+    readString: function(size) {
+        return utils.transformTo("string", this.readData(size));
+    },
+    /**
+     * Get raw data without conversion, <size> bytes.
+     * @param {number} size the number of bytes to read.
+     * @return {Object} the raw data, implementation specific.
+     */
+    readData: function(size) {
+        // see implementations
+    },
+    /**
+     * Find the last occurrence of a zip signature (4 bytes).
+     * @param {string} sig the signature to find.
+     * @return {number} the index of the last occurrence, -1 if not found.
+     */
+    lastIndexOfSignature: function(sig) {
+        // see implementations
+    },
+    /**
+     * Read the signature (4 bytes) at the current position and compare it with sig.
+     * @param {string} sig the expected signature
+     * @return {boolean} true if the signature matches, false otherwise.
+     */
+    readAndCheckSignature: function(sig) {
+        // see implementations
+    },
+    /**
+     * Get the next date.
+     * @return {Date} the date.
+     */
+    readDate: function() {
+        var dostime = this.readInt(4);
+        return new Date(Date.UTC(
+        ((dostime >> 25) & 0x7f) + 1980, // year
+        ((dostime >> 21) & 0x0f) - 1, // month
+        (dostime >> 16) & 0x1f, // day
+        (dostime >> 11) & 0x1f, // hour
+        (dostime >> 5) & 0x3f, // minute
+        (dostime & 0x1f) << 1)); // second
+    }
+};
+module.exports = DataReader;
+
+},{"../utils":42}],29:[function(require,module,exports){
+'use strict';
+var Uint8ArrayReader = require('./Uint8ArrayReader');
+var utils = require('../utils');
+
+function NodeBufferReader(data) {
+    Uint8ArrayReader.call(this, data);
+}
+utils.inherits(NodeBufferReader, Uint8ArrayReader);
+
+/**
+ * @see DataReader.readData
+ */
+NodeBufferReader.prototype.readData = function(size) {
+    this.checkOffset(size);
+    var result = this.data.slice(this.zero + this.index, this.zero + this.index + size);
+    this.index += size;
+    return result;
+};
+module.exports = NodeBufferReader;
+
+},{"../utils":42,"./Uint8ArrayReader":31}],30:[function(require,module,exports){
+'use strict';
+var DataReader = require('./DataReader');
+var utils = require('../utils');
+
+function StringReader(data) {
+    DataReader.call(this, data);
+}
+utils.inherits(StringReader, DataReader);
+/**
+ * @see DataReader.byteAt
+ */
+StringReader.prototype.byteAt = function(i) {
+    return this.data.charCodeAt(this.zero + i);
+};
+/**
+ * @see DataReader.lastIndexOfSignature
+ */
+StringReader.prototype.lastIndexOfSignature = function(sig) {
+    return this.data.lastIndexOf(sig) - this.zero;
+};
+/**
+ * @see DataReader.readAndCheckSignature
+ */
+StringReader.prototype.readAndCheckSignature = function (sig) {
+    var data = this.readData(4);
+    return sig === data;
+};
+/**
+ * @see DataReader.readData
+ */
+StringReader.prototype.readData = function(size) {
+    this.checkOffset(size);
+    // this will work because the constructor applied the "& 0xff" mask.
+    var result = this.data.slice(this.zero + this.index, this.zero + this.index + size);
+    this.index += size;
+    return result;
+};
+module.exports = StringReader;
+
+},{"../utils":42,"./DataReader":28}],31:[function(require,module,exports){
+'use strict';
+var ArrayReader = require('./ArrayReader');
+var utils = require('../utils');
+
+function Uint8ArrayReader(data) {
+    ArrayReader.call(this, data);
+}
+utils.inherits(Uint8ArrayReader, ArrayReader);
+/**
+ * @see DataReader.readData
+ */
+Uint8ArrayReader.prototype.readData = function(size) {
+    this.checkOffset(size);
+    if(size === 0) {
+        // in IE10, when using subarray(idx, idx), we get the array [0x00] instead of [].
+        return new Uint8Array(0);
+    }
+    var result = this.data.subarray(this.zero + this.index, this.zero + this.index + size);
+    this.index += size;
+    return result;
+};
+module.exports = Uint8ArrayReader;
+
+},{"../utils":42,"./ArrayReader":27}],32:[function(require,module,exports){
+'use strict';
+
+var utils = require('../utils');
+var support = require('../support');
+var ArrayReader = require('./ArrayReader');
+var StringReader = require('./StringReader');
+var NodeBufferReader = require('./NodeBufferReader');
+var Uint8ArrayReader = require('./Uint8ArrayReader');
+
+/**
+ * Create a reader adapted to the data.
+ * @param {String|ArrayBuffer|Uint8Array|Buffer} data the data to read.
+ * @return {DataReader} the data reader.
+ */
+module.exports = function (data) {
+    var type = utils.getTypeOf(data);
+    utils.checkSupport(type);
+    if (type === "string" && !support.uint8array) {
+        return new StringReader(data);
+    }
+    if (type === "nodebuffer") {
+        return new NodeBufferReader(data);
+    }
+    if (support.uint8array) {
+        return new Uint8ArrayReader(utils.transformTo("uint8array", data));
+    }
+    return new ArrayReader(utils.transformTo("array", data));
+};
+
+},{"../support":40,"../utils":42,"./ArrayReader":27,"./NodeBufferReader":29,"./StringReader":30,"./Uint8ArrayReader":31}],33:[function(require,module,exports){
+'use strict';
+exports.LOCAL_FILE_HEADER = "PK\x03\x04";
+exports.CENTRAL_FILE_HEADER = "PK\x01\x02";
+exports.CENTRAL_DIRECTORY_END = "PK\x05\x06";
+exports.ZIP64_CENTRAL_DIRECTORY_LOCATOR = "PK\x06\x07";
+exports.ZIP64_CENTRAL_DIRECTORY_END = "PK\x06\x06";
+exports.DATA_DESCRIPTOR = "PK\x07\x08";
+
+},{}],34:[function(require,module,exports){
+'use strict';
+
+var GenericWorker = require('./GenericWorker');
+var utils = require('../utils');
+
+/**
+ * A worker which convert chunks to a specified type.
+ * @constructor
+ * @param {String} destType the destination type.
+ */
+function ConvertWorker(destType) {
+    GenericWorker.call(this, "ConvertWorker to " + destType);
+    this.destType = destType;
+}
+utils.inherits(ConvertWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+ConvertWorker.prototype.processChunk = function (chunk) {
+    this.push({
+        data : utils.transformTo(this.destType, chunk.data),
+        meta : chunk.meta
+    });
+};
+module.exports = ConvertWorker;
+
+},{"../utils":42,"./GenericWorker":38}],35:[function(require,module,exports){
+'use strict';
+
+var GenericWorker = require('./GenericWorker');
+var crc32 = require('../crc32');
+var utils = require('../utils');
+
+/**
+ * A worker which calculate the crc32 of the data flowing through.
+ * @constructor
+ */
+function Crc32Probe() {
+    GenericWorker.call(this, "Crc32Probe");
+    this.withStreamInfo("crc32", 0);
+}
+utils.inherits(Crc32Probe, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+Crc32Probe.prototype.processChunk = function (chunk) {
+    this.streamInfo.crc32 = crc32(chunk.data, this.streamInfo.crc32 || 0);
+    this.push(chunk);
+};
+module.exports = Crc32Probe;
+
+},{"../crc32":14,"../utils":42,"./GenericWorker":38}],36:[function(require,module,exports){
+'use strict';
+
+var utils = require('../utils');
+var GenericWorker = require('./GenericWorker');
+
+/**
+ * A worker which calculate the total length of the data flowing through.
+ * @constructor
+ * @param {String} propName the name used to expose the length
+ */
+function DataLengthProbe(propName) {
+    GenericWorker.call(this, "DataLengthProbe for " + propName);
+    this.propName = propName;
+    this.withStreamInfo(propName, 0);
+}
+utils.inherits(DataLengthProbe, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+DataLengthProbe.prototype.processChunk = function (chunk) {
+    if(chunk) {
+        var length = this.streamInfo[this.propName] || 0;
+        this.streamInfo[this.propName] = length + chunk.data.length;
+    }
+    GenericWorker.prototype.processChunk.call(this, chunk);
+};
+module.exports = DataLengthProbe;
+
+
+},{"../utils":42,"./GenericWorker":38}],37:[function(require,module,exports){
+'use strict';
+
+var utils = require('../utils');
+var GenericWorker = require('./GenericWorker');
+
+// the size of the generated chunks
+// TODO expose this as a public variable
+var DEFAULT_BLOCK_SIZE = 16 * 1024;
+
+/**
+ * A worker that reads a content and emits chunks.
+ * @constructor
+ * @param {Promise} dataP the promise of the data to split
+ */
+function DataWorker(dataP) {
+    GenericWorker.call(this, "DataWorker");
+    var self = this;
+    this.dataIsReady = false;
+    this.index = 0;
+    this.max = 0;
+    this.data = null;
+    this.type = "";
+
+    this._tickScheduled = false;
+
+    dataP.then(function (data) {
+        self.dataIsReady = true;
+        self.data = data;
+        self.max = data && data.length || 0;
+        self.type = utils.getTypeOf(data);
+        if(!self.isPaused) {
+            self._tickAndRepeat();
+        }
+    }, function (e) {
+        self.error(e);
+    });
+}
+
+utils.inherits(DataWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.cleanUp
+ */
+DataWorker.prototype.cleanUp = function () {
+    GenericWorker.prototype.cleanUp.call(this);
+    this.data = null;
+};
+
+/**
+ * @see GenericWorker.resume
+ */
+DataWorker.prototype.resume = function () {
+    if(!GenericWorker.prototype.resume.call(this)) {
+        return false;
+    }
+
+    if (!this._tickScheduled && this.dataIsReady) {
+        this._tickScheduled = true;
+        utils.delay(this._tickAndRepeat, [], this);
+    }
+    return true;
+};
+
+/**
+ * Trigger a tick a schedule an other call to this function.
+ */
+DataWorker.prototype._tickAndRepeat = function() {
+    this._tickScheduled = false;
+    if(this.isPaused || this.isFinished) {
+        return;
+    }
+    this._tick();
+    if(!this.isFinished) {
+        utils.delay(this._tickAndRepeat, [], this);
+        this._tickScheduled = true;
+    }
+};
+
+/**
+ * Read and push a chunk.
+ */
+DataWorker.prototype._tick = function() {
+
+    if(this.isPaused || this.isFinished) {
+        return false;
+    }
+
+    var size = DEFAULT_BLOCK_SIZE;
+    var data = null, nextIndex = Math.min(this.max, this.index + size);
+    if (this.index >= this.max) {
+        // EOF
+        return this.end();
+    } else {
+        switch(this.type) {
+            case "string":
+                data = this.data.substring(this.index, nextIndex);
+            break;
+            case "uint8array":
+                data = this.data.subarray(this.index, nextIndex);
+            break;
+            case "array":
+            case "nodebuffer":
+                data = this.data.slice(this.index, nextIndex);
+            break;
+        }
+        this.index = nextIndex;
+        return this.push({
+            data : data,
+            meta : {
+                percent : this.max ? this.index / this.max * 100 : 0
+            }
+        });
+    }
+};
+
+module.exports = DataWorker;
+
+},{"../utils":42,"./GenericWorker":38}],38:[function(require,module,exports){
+'use strict';
+
+/**
+ * A worker that does nothing but passing chunks to the next one. This is like
+ * a nodejs stream but with some differences. On the good side :
+ * - it works on IE 6-9 without any issue / polyfill
+ * - it weights less than the full dependencies bundled with browserify
+ * - it forwards errors (no need to declare an error handler EVERYWHERE)
+ *
+ * A chunk is an object with 2 attributes : `meta` and `data`. The former is an
+ * object containing anything (`percent` for example), see each worker for more
+ * details. The latter is the real data (String, Uint8Array, etc).
+ *
+ * @constructor
+ * @param {String} name the name of the stream (mainly used for debugging purposes)
+ */
+function GenericWorker(name) {
+    // the name of the worker
+    this.name = name || "default";
+    // an object containing metadata about the workers chain
+    this.streamInfo = {};
+    // an error which happened when the worker was paused
+    this.generatedError = null;
+    // an object containing metadata to be merged by this worker into the general metadata
+    this.extraStreamInfo = {};
+    // true if the stream is paused (and should not do anything), false otherwise
+    this.isPaused = true;
+    // true if the stream is finished (and should not do anything), false otherwise
+    this.isFinished = false;
+    // true if the stream is locked to prevent further structure updates (pipe), false otherwise
+    this.isLocked = false;
+    // the event listeners
+    this._listeners = {
+        'data':[],
+        'end':[],
+        'error':[]
+    };
+    // the previous worker, if any
+    this.previous = null;
+}
+
+GenericWorker.prototype = {
+    /**
+     * Push a chunk to the next workers.
+     * @param {Object} chunk the chunk to push
+     */
+    push : function (chunk) {
+        this.emit("data", chunk);
+    },
+    /**
+     * End the stream.
+     * @return {Boolean} true if this call ended the worker, false otherwise.
+     */
+    end : function () {
+        if (this.isFinished) {
+            return false;
+        }
+
+        this.flush();
+        try {
+            this.emit("end");
+            this.cleanUp();
+            this.isFinished = true;
+        } catch (e) {
+            this.emit("error", e);
+        }
+        return true;
+    },
+    /**
+     * End the stream with an error.
+     * @param {Error} e the error which caused the premature end.
+     * @return {Boolean} true if this call ended the worker with an error, false otherwise.
+     */
+    error : function (e) {
+        if (this.isFinished) {
+            return false;
+        }
+
+        if(this.isPaused) {
+            this.generatedError = e;
+        } else {
+            this.isFinished = true;
+
+            this.emit("error", e);
+
+            // in the workers chain exploded in the middle of the chain,
+            // the error event will go downward but we also need to notify
+            // workers upward that there has been an error.
+            if(this.previous) {
+                this.previous.error(e);
+            }
+
+            this.cleanUp();
+        }
+        return true;
+    },
+    /**
+     * Add a callback on an event.
+     * @param {String} name the name of the event (data, end, error)
+     * @param {Function} listener the function to call when the event is triggered
+     * @return {GenericWorker} the current object for chainability
+     */
+    on : function (name, listener) {
+        this._listeners[name].push(listener);
+        return this;
+    },
+    /**
+     * Clean any references when a worker is ending.
+     */
+    cleanUp : function () {
+        this.streamInfo = this.generatedError = this.extraStreamInfo = null;
+        this._listeners = [];
+    },
+    /**
+     * Trigger an event. This will call registered callback with the provided arg.
+     * @param {String} name the name of the event (data, end, error)
+     * @param {Object} arg the argument to call the callback with.
+     */
+    emit : function (name, arg) {
+        if (this._listeners[name]) {
+            for(var i = 0; i < this._listeners[name].length; i++) {
+                this._listeners[name][i].call(this, arg);
+            }
+        }
+    },
+    /**
+     * Chain a worker with an other.
+     * @param {Worker} next the worker receiving events from the current one.
+     * @return {worker} the next worker for chainability
+     */
+    pipe : function (next) {
+        return next.registerPrevious(this);
+    },
+    /**
+     * Same as `pipe` in the other direction.
+     * Using an API with `pipe(next)` is very easy.
+     * Implementing the API with the point of view of the next one registering
+     * a source is easier, see the ZipFileWorker.
+     * @param {Worker} previous the previous worker, sending events to this one
+     * @return {Worker} the current worker for chainability
+     */
+    registerPrevious : function (previous) {
+        if (this.isLocked) {
+            throw new Error("The stream '" + this + "' has already been used.");
+        }
+
+        // sharing the streamInfo...
+        this.streamInfo = previous.streamInfo;
+        // ... and adding our own bits
+        this.mergeStreamInfo();
+        this.previous =  previous;
+        var self = this;
+        previous.on('data', function (chunk) {
+            self.processChunk(chunk);
+        });
+        previous.on('end', function () {
+            self.end();
+        });
+        previous.on('error', function (e) {
+            self.error(e);
+        });
+        return this;
+    },
+    /**
+     * Pause the stream so it doesn't send events anymore.
+     * @return {Boolean} true if this call paused the worker, false otherwise.
+     */
+    pause : function () {
+        if(this.isPaused || this.isFinished) {
+            return false;
+        }
+        this.isPaused = true;
+
+        if(this.previous) {
+            this.previous.pause();
+        }
+        return true;
+    },
+    /**
+     * Resume a paused stream.
+     * @return {Boolean} true if this call resumed the worker, false otherwise.
+     */
+    resume : function () {
+        if(!this.isPaused || this.isFinished) {
+            return false;
+        }
+        this.isPaused = false;
+
+        // if true, the worker tried to resume but failed
+        var withError = false;
+        if(this.generatedError) {
+            this.error(this.generatedError);
+            withError = true;
+        }
+        if(this.previous) {
+            this.previous.resume();
+        }
+
+        return !withError;
+    },
+    /**
+     * Flush any remaining bytes as the stream is ending.
+     */
+    flush : function () {},
+    /**
+     * Process a chunk. This is usually the method overridden.
+     * @param {Object} chunk the chunk to process.
+     */
+    processChunk : function(chunk) {
+        this.push(chunk);
+    },
+    /**
+     * Add a key/value to be added in the workers chain streamInfo once activated.
+     * @param {String} key the key to use
+     * @param {Object} value the associated value
+     * @return {Worker} the current worker for chainability
+     */
+    withStreamInfo : function (key, value) {
+        this.extraStreamInfo[key] = value;
+        this.mergeStreamInfo();
+        return this;
+    },
+    /**
+     * Merge this worker's streamInfo into the chain's streamInfo.
+     */
+    mergeStreamInfo : function () {
+        for(var key in this.extraStreamInfo) {
+            if (!this.extraStreamInfo.hasOwnProperty(key)) {
+                continue;
+            }
+            this.streamInfo[key] = this.extraStreamInfo[key];
+        }
+    },
+
+    /**
+     * Lock the stream to prevent further updates on the workers chain.
+     * After calling this method, all calls to pipe will fail.
+     */
+    lock: function () {
+        if (this.isLocked) {
+            throw new Error("The stream '" + this + "' has already been used.");
+        }
+        this.isLocked = true;
+        if (this.previous) {
+            this.previous.lock();
+        }
+    },
+
+    /**
+     *
+     * Pretty print the workers chain.
+     */
+    toString : function () {
+        var me = "Worker " + this.name;
+        if (this.previous) {
+            return this.previous + " -> " + me;
+        } else {
+            return me;
+        }
+    }
+};
+
+module.exports = GenericWorker;
+
+},{}],39:[function(require,module,exports){
+(function (Buffer){
+'use strict';
+
+var utils = require('../utils');
+var ConvertWorker = require('./ConvertWorker');
+var GenericWorker = require('./GenericWorker');
+var base64 = require('../base64');
+var support = require("../support");
+var external = require("../external");
+
+var NodejsStreamOutputAdapter = null;
+if (support.nodestream) {
+    try {
+        NodejsStreamOutputAdapter = require('../nodejs/NodejsStreamOutputAdapter');
+    } catch(e) {}
+}
+
+/**
+ * Apply the final transformation of the data. If the user wants a Blob for
+ * example, it's easier to work with an U8intArray and finally do the
+ * ArrayBuffer/Blob conversion.
+ * @param {String} type the name of the final type
+ * @param {String|Uint8Array|Buffer} content the content to transform
+ * @param {String} mimeType the mime type of the content, if applicable.
+ * @return {String|Uint8Array|ArrayBuffer|Buffer|Blob} the content in the right format.
+ */
+function transformZipOutput(type, content, mimeType) {
+    switch(type) {
+        case "blob" :
+            return utils.newBlob(utils.transformTo("arraybuffer", content), mimeType);
+        case "base64" :
+            return base64.encode(content);
+        default :
+            return utils.transformTo(type, content);
+    }
+}
+
+/**
+ * Concatenate an array of data of the given type.
+ * @param {String} type the type of the data in the given array.
+ * @param {Array} dataArray the array containing the data chunks to concatenate
+ * @return {String|Uint8Array|Buffer} the concatenated data
+ * @throws Error if the asked type is unsupported
+ */
+function concat (type, dataArray) {
+    var i, index = 0, res = null, totalLength = 0;
+    for(i = 0; i < dataArray.length; i++) {
+        totalLength += dataArray[i].length;
+    }
+    switch(type) {
+        case "string":
+            return dataArray.join("");
+          case "array":
+            return Array.prototype.concat.apply([], dataArray);
+        case "uint8array":
+            res = new Uint8Array(totalLength);
+            for(i = 0; i < dataArray.length; i++) {
+                res.set(dataArray[i], index);
+                index += dataArray[i].length;
+            }
+            return res;
+        case "nodebuffer":
+            return Buffer.concat(dataArray);
+        default:
+            throw new Error("concat : unsupported type '"  + type + "'");
+    }
+}
+
+/**
+ * Listen a StreamHelper, accumulate its content and concatenate it into a
+ * complete block.
+ * @param {StreamHelper} helper the helper to use.
+ * @param {Function} updateCallback a callback called on each update. Called
+ * with one arg :
+ * - the metadata linked to the update received.
+ * @return Promise the promise for the accumulation.
+ */
+function accumulate(helper, updateCallback) {
+    return new external.Promise(function (resolve, reject){
+        var dataArray = [];
+        var chunkType = helper._internalType,
+            resultType = helper._outputType,
+            mimeType = helper._mimeType;
+        helper
+        .on('data', function (data, meta) {
+            dataArray.push(data);
+            if(updateCallback) {
+                updateCallback(meta);
+            }
+        })
+        .on('error', function(err) {
+            dataArray = [];
+            reject(err);
+        })
+        .on('end', function (){
+            try {
+                var result = transformZipOutput(resultType, concat(chunkType, dataArray), mimeType);
+                resolve(result);
+            } catch (e) {
+                reject(e);
+            }
+            dataArray = [];
+        })
+        .resume();
+    });
+}
+
+/**
+ * An helper to easily use workers outside of JSZip.
+ * @constructor
+ * @param {Worker} worker the worker to wrap
+ * @param {String} outputType the type of data expected by the use
+ * @param {String} mimeType the mime type of the content, if applicable.
+ */
+function StreamHelper(worker, outputType, mimeType) {
+    var internalType = outputType;
+    switch(outputType) {
+        case "blob":
+        case "arraybuffer":
+            internalType = "uint8array";
+        break;
+        case "base64":
+            internalType = "string";
+        break;
+    }
+
+    try {
+        // the type used internally
+        this._internalType = internalType;
+        // the type used to output results
+        this._outputType = outputType;
+        // the mime type
+        this._mimeType = mimeType;
+        utils.checkSupport(internalType);
+        this._worker = worker.pipe(new ConvertWorker(internalType));
+        // the last workers can be rewired without issues but we need to
+        // prevent any updates on previous workers.
+        worker.lock();
+    } catch(e) {
+        this._worker = new GenericWorker("error");
+        this._worker.error(e);
+    }
+}
+
+StreamHelper.prototype = {
+    /**
+     * Listen a StreamHelper, accumulate its content and concatenate it into a
+     * complete block.
+     * @param {Function} updateCb the update callback.
+     * @return Promise the promise for the accumulation.
+     */
+    accumulate : function (updateCb) {
+        return accumulate(this, updateCb);
+    },
+    /**
+     * Add a listener on an event triggered on a stream.
+     * @param {String} evt the name of the event
+     * @param {Function} fn the listener
+     * @return {StreamHelper} the current helper.
+     */
+    on : function (evt, fn) {
+        var self = this;
+
+        if(evt === "data") {
+            this._worker.on(evt, function (chunk) {
+                fn.call(self, chunk.data, chunk.meta);
+            });
+        } else {
+            this._worker.on(evt, function () {
+                utils.delay(fn, arguments, self);
+            });
+        }
+        return this;
+    },
+    /**
+     * Resume the flow of chunks.
+     * @return {StreamHelper} the current helper.
+     */
+    resume : function () {
+        utils.delay(this._worker.resume, [], this._worker);
+        return this;
+    },
+    /**
+     * Pause the flow of chunks.
+     * @return {StreamHelper} the current helper.
+     */
+    pause : function () {
+        this._worker.pause();
+        return this;
+    },
+    /**
+     * Return a nodejs stream for this helper.
+     * @param {Function} updateCb the update callback.
+     * @return {NodejsStreamOutputAdapter} the nodejs stream.
+     */
+    toNodejsStream : function (updateCb) {
+        utils.checkSupport("nodestream");
+        if (this._outputType !== "nodebuffer") {
+            // an object stream containing blob/arraybuffer/uint8array/string
+            // is strange and I don't know if it would be useful.
+            // I you find this comment and have a good usecase, please open a
+            // bug report !
+            throw new Error(this._outputType + " is not supported by this method");
+        }
+
+        return new NodejsStreamOutputAdapter(this, {
+            objectMode : this._outputType !== "nodebuffer"
+        }, updateCb);
+    }
+};
+
+
+module.exports = StreamHelper;
+
+}).call(this,require("buffer").Buffer)
+},{"../base64":11,"../external":16,"../nodejs/NodejsStreamOutputAdapter":24,"../support":40,"../utils":42,"./ConvertWorker":34,"./GenericWorker":38,"buffer":3}],40:[function(require,module,exports){
+(function (Buffer){
+'use strict';
+
+exports.base64 = true;
+exports.array = true;
+exports.string = true;
+exports.arraybuffer = typeof ArrayBuffer !== "undefined" && typeof Uint8Array !== "undefined";
+exports.nodebuffer = typeof Buffer !== "undefined";
+// contains true if JSZip can read/generate Uint8Array, false otherwise.
+exports.uint8array = typeof Uint8Array !== "undefined";
+
+if (typeof ArrayBuffer === "undefined") {
+    exports.blob = false;
+}
+else {
+    var buffer = new ArrayBuffer(0);
+    try {
+        exports.blob = new Blob([buffer], {
+            type: "application/zip"
+        }).size === 0;
+    }
+    catch (e) {
+        try {
+            var Builder = self.BlobBuilder || self.WebKitBlobBuilder || self.MozBlobBuilder || self.MSBlobBuilder;
+            var builder = new Builder();
+            builder.append(buffer);
+            exports.blob = builder.getBlob('application/zip').size === 0;
+        }
+        catch (e) {
+            exports.blob = false;
+        }
+    }
+}
+
+try {
+    exports.nodestream = !!require('readable-stream').Readable;
+} catch(e) {
+    exports.nodestream = false;
+}
+
+}).call(this,require("buffer").Buffer)
+},{"buffer":3,"readable-stream":26}],41:[function(require,module,exports){
+'use strict';
+
+var utils = require('./utils');
+var support = require('./support');
+var nodejsUtils = require('./nodejsUtils');
+var GenericWorker = require('./stream/GenericWorker');
+
+/**
+ * The following functions come from pako, from pako/lib/utils/strings
+ * released under the MIT license, see pako https://github.com/nodeca/pako/
+ */
+
+// Table with utf8 lengths (calculated by first byte of sequence)
+// Note, that 5 & 6-byte values and some 4-byte values can not be represented in JS,
+// because max possible codepoint is 0x10ffff
+var _utf8len = new Array(256);
+for (var i=0; i<256; i++) {
+  _utf8len[i] = (i >= 252 ? 6 : i >= 248 ? 5 : i >= 240 ? 4 : i >= 224 ? 3 : i >= 192 ? 2 : 1);
+}
+_utf8len[254]=_utf8len[254]=1; // Invalid sequence start
+
+// convert string to array (typed, when possible)
+var string2buf = function (str) {
+    var buf, c, c2, m_pos, i, str_len = str.length, buf_len = 0;
+
+    // count binary size
+    for (m_pos = 0; m_pos < str_len; m_pos++) {
+        c = str.charCodeAt(m_pos);
+        if ((c & 0xfc00) === 0xd800 && (m_pos+1 < str_len)) {
+            c2 = str.charCodeAt(m_pos+1);
+            if ((c2 & 0xfc00) === 0xdc00) {
+                c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
+                m_pos++;
+            }
+        }
+        buf_len += c < 0x80 ? 1 : c < 0x800 ? 2 : c < 0x10000 ? 3 : 4;
+    }
+
+    // allocate buffer
+    if (support.uint8array) {
+        buf = new Uint8Array(buf_len);
+    } else {
+        buf = new Array(buf_len);
+    }
+
+    // convert
+    for (i=0, m_pos = 0; i < buf_len; m_pos++) {
+        c = str.charCodeAt(m_pos);
+        if ((c & 0xfc00) === 0xd800 && (m_pos+1 < str_len)) {
+            c2 = str.charCodeAt(m_pos+1);
+            if ((c2 & 0xfc00) === 0xdc00) {
+                c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
+                m_pos++;
+            }
+        }
+        if (c < 0x80) {
+            /* one byte */
+            buf[i++] = c;
+        } else if (c < 0x800) {
+            /* two bytes */
+            buf[i++] = 0xC0 | (c >>> 6);
+            buf[i++] = 0x80 | (c & 0x3f);
+        } else if (c < 0x10000) {
+            /* three bytes */
+            buf[i++] = 0xE0 | (c >>> 12);
+            buf[i++] = 0x80 | (c >>> 6 & 0x3f);
+            buf[i++] = 0x80 | (c & 0x3f);
+        } else {
+            /* four bytes */
+            buf[i++] = 0xf0 | (c >>> 18);
+            buf[i++] = 0x80 | (c >>> 12 & 0x3f);
+            buf[i++] = 0x80 | (c >>> 6 & 0x3f);
+            buf[i++] = 0x80 | (c & 0x3f);
+        }
+    }
+
+    return buf;
+};
+
+// Calculate max possible position in utf8 buffer,
+// that will not break sequence. If that's not possible
+// - (very small limits) return max size as is.
+//
+// buf[] - utf8 bytes array
+// max   - length limit (mandatory);
+var utf8border = function(buf, max) {
+    var pos;
+
+    max = max || buf.length;
+    if (max > buf.length) { max = buf.length; }
+
+    // go back from last position, until start of sequence found
+    pos = max-1;
+    while (pos >= 0 && (buf[pos] & 0xC0) === 0x80) { pos--; }
+
+    // Fuckup - very small and broken sequence,
+    // return max, because we should return something anyway.
+    if (pos < 0) { return max; }
+
+    // If we came to start of buffer - that means vuffer is too small,
+    // return max too.
+    if (pos === 0) { return max; }
+
+    return (pos + _utf8len[buf[pos]] > max) ? pos : max;
+};
+
+// convert array to string
+var buf2string = function (buf) {
+    var str, i, out, c, c_len;
+    var len = buf.length;
+
+    // Reserve max possible length (2 words per char)
+    // NB: by unknown reasons, Array is significantly faster for
+    //     String.fromCharCode.apply than Uint16Array.
+    var utf16buf = new Array(len*2);
+
+    for (out=0, i=0; i<len;) {
+        c = buf[i++];
+        // quick process ascii
+        if (c < 0x80) { utf16buf[out++] = c; continue; }
+
+        c_len = _utf8len[c];
+        // skip 5 & 6 byte codes
+        if (c_len > 4) { utf16buf[out++] = 0xfffd; i += c_len-1; continue; }
+
+        // apply mask on first byte
+        c &= c_len === 2 ? 0x1f : c_len === 3 ? 0x0f : 0x07;
+        // join the rest
+        while (c_len > 1 && i < len) {
+            c = (c << 6) | (buf[i++] & 0x3f);
+            c_len--;
+        }
+
+        // terminated by end of string?
+        if (c_len > 1) { utf16buf[out++] = 0xfffd; continue; }
+
+        if (c < 0x10000) {
+            utf16buf[out++] = c;
+        } else {
+            c -= 0x10000;
+            utf16buf[out++] = 0xd800 | ((c >> 10) & 0x3ff);
+            utf16buf[out++] = 0xdc00 | (c & 0x3ff);
+        }
+    }
+
+    // shrinkBuf(utf16buf, out)
+    if (utf16buf.length !== out) {
+        if(utf16buf.subarray) {
+            utf16buf = utf16buf.subarray(0, out);
+        } else {
+            utf16buf.length = out;
+        }
+    }
+
+    // return String.fromCharCode.apply(null, utf16buf);
+    return utils.applyFromCharCode(utf16buf);
+};
+
+
+// That's all for the pako functions.
+
+
+/**
+ * Transform a javascript string into an array (typed if possible) of bytes,
+ * UTF-8 encoded.
+ * @param {String} str the string to encode
+ * @return {Array|Uint8Array|Buffer} the UTF-8 encoded string.
+ */
+exports.utf8encode = function utf8encode(str) {
+    if (support.nodebuffer) {
+        return nodejsUtils.newBufferFrom(str, "utf-8");
+    }
+
+    return string2buf(str);
+};
+
+
+/**
+ * Transform a bytes array (or a representation) representing an UTF-8 encoded
+ * string into a javascript string.
+ * @param {Array|Uint8Array|Buffer} buf the data de decode
+ * @return {String} the decoded string.
+ */
+exports.utf8decode = function utf8decode(buf) {
+    if (support.nodebuffer) {
+        return utils.transformTo("nodebuffer", buf).toString("utf-8");
+    }
+
+    buf = utils.transformTo(support.uint8array ? "uint8array" : "array", buf);
+
+    return buf2string(buf);
+};
+
+/**
+ * A worker to decode utf8 encoded binary chunks into string chunks.
+ * @constructor
+ */
+function Utf8DecodeWorker() {
+    GenericWorker.call(this, "utf-8 decode");
+    // the last bytes if a chunk didn't end with a complete codepoint.
+    this.leftOver = null;
+}
+utils.inherits(Utf8DecodeWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+Utf8DecodeWorker.prototype.processChunk = function (chunk) {
+
+    var data = utils.transformTo(support.uint8array ? "uint8array" : "array", chunk.data);
+
+    // 1st step, re-use what's left of the previous chunk
+    if (this.leftOver && this.leftOver.length) {
+        if(support.uint8array) {
+            var previousData = data;
+            data = new Uint8Array(previousData.length + this.leftOver.length);
+            data.set(this.leftOver, 0);
+            data.set(previousData, this.leftOver.length);
+        } else {
+            data = this.leftOver.concat(data);
+        }
+        this.leftOver = null;
+    }
+
+    var nextBoundary = utf8border(data);
+    var usableData = data;
+    if (nextBoundary !== data.length) {
+        if (support.uint8array) {
+            usableData = data.subarray(0, nextBoundary);
+            this.leftOver = data.subarray(nextBoundary, data.length);
+        } else {
+            usableData = data.slice(0, nextBoundary);
+            this.leftOver = data.slice(nextBoundary, data.length);
+        }
+    }
+
+    this.push({
+        data : exports.utf8decode(usableData),
+        meta : chunk.meta
+    });
+};
+
+/**
+ * @see GenericWorker.flush
+ */
+Utf8DecodeWorker.prototype.flush = function () {
+    if(this.leftOver && this.leftOver.length) {
+        this.push({
+            data : exports.utf8decode(this.leftOver),
+            meta : {}
+        });
+        this.leftOver = null;
+    }
+};
+exports.Utf8DecodeWorker = Utf8DecodeWorker;
+
+/**
+ * A worker to endcode string chunks into utf8 encoded binary chunks.
+ * @constructor
+ */
+function Utf8EncodeWorker() {
+    GenericWorker.call(this, "utf-8 encode");
+}
+utils.inherits(Utf8EncodeWorker, GenericWorker);
+
+/**
+ * @see GenericWorker.processChunk
+ */
+Utf8EncodeWorker.prototype.processChunk = function (chunk) {
+    this.push({
+        data : exports.utf8encode(chunk.data),
+        meta : chunk.meta
+    });
+};
+exports.Utf8EncodeWorker = Utf8EncodeWorker;
+
+},{"./nodejsUtils":22,"./stream/GenericWorker":38,"./support":40,"./utils":42}],42:[function(require,module,exports){
+'use strict';
+
+var support = require('./support');
+var base64 = require('./base64');
+var nodejsUtils = require('./nodejsUtils');
+var setImmediate = require('set-immediate-shim');
+var external = require("./external");
+
+
+/**
+ * Convert a string that pass as a "binary string": it should represent a byte
+ * array but may have > 255 char codes. Be sure to take only the first byte
+ * and returns the byte array.
+ * @param {String} str the string to transform.
+ * @return {Array|Uint8Array} the string in a binary format.
+ */
+function string2binary(str) {
+    var result = null;
+    if (support.uint8array) {
+      result = new Uint8Array(str.length);
+    } else {
+      result = new Array(str.length);
+    }
+    return stringToArrayLike(str, result);
+}
+
+/**
+ * Create a new blob with the given content and the given type.
+ * @param {String|ArrayBuffer} part the content to put in the blob. DO NOT use
+ * an Uint8Array because the stock browser of android 4 won't accept it (it
+ * will be silently converted to a string, "[object Uint8Array]").
+ *
+ * Use only ONE part to build the blob to avoid a memory leak in IE11 / Edge:
+ * when a large amount of Array is used to create the Blob, the amount of
+ * memory consumed is nearly 100 times the original data amount.
+ *
+ * @param {String} type the mime type of the blob.
+ * @return {Blob} the created blob.
+ */
+exports.newBlob = function(part, type) {
+    exports.checkSupport("blob");
+
+    try {
+        // Blob constructor
+        return new Blob([part], {
+            type: type
+        });
+    }
+    catch (e) {
+
+        try {
+            // deprecated, browser only, old way
+            var Builder = self.BlobBuilder || self.WebKitBlobBuilder || self.MozBlobBuilder || self.MSBlobBuilder;
+            var builder = new Builder();
+            builder.append(part);
+            return builder.getBlob(type);
+        }
+        catch (e) {
+
+            // well, fuck ?!
+            throw new Error("Bug : can't construct the Blob.");
+        }
+    }
+
+
+};
+/**
+ * The identity function.
+ * @param {Object} input the input.
+ * @return {Object} the same input.
+ */
+function identity(input) {
+    return input;
+}
+
+/**
+ * Fill in an array with a string.
+ * @param {String} str the string to use.
+ * @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to fill in (will be mutated).
+ * @return {Array|ArrayBuffer|Uint8Array|Buffer} the updated array.
+ */
+function stringToArrayLike(str, array) {
+    for (var i = 0; i < str.length; ++i) {
+        array[i] = str.charCodeAt(i) & 0xFF;
+    }
+    return array;
+}
+
+/**
+ * An helper for the function arrayLikeToString.
+ * This contains static information and functions that
+ * can be optimized by the browser JIT compiler.
+ */
+var arrayToStringHelper = {
+    /**
+     * Transform an array of int into a string, chunk by chunk.
+     * See the performances notes on arrayLikeToString.
+     * @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to transform.
+     * @param {String} type the type of the array.
+     * @param {Integer} chunk the chunk size.
+     * @return {String} the resulting string.
+     * @throws Error if the chunk is too big for the stack.
+     */
+    stringifyByChunk: function(array, type, chunk) {
+        var result = [], k = 0, len = array.length;
+        // shortcut
+        if (len <= chunk) {
+            return String.fromCharCode.apply(null, array);
+        }
+        while (k < len) {
+            if (type === "array" || type === "nodebuffer") {
+                result.push(String.fromCharCode.apply(null, array.slice(k, Math.min(k + chunk, len))));
+            }
+            else {
+                result.push(String.fromCharCode.apply(null, array.subarray(k, Math.min(k + chunk, len))));
+            }
+            k += chunk;
+        }
+        return result.join("");
+    },
+    /**
+     * Call String.fromCharCode on every item in the array.
+     * This is the naive implementation, which generate A LOT of intermediate string.
+     * This should be used when everything else fail.
+     * @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to transform.
+     * @return {String} the result.
+     */
+    stringifyByChar: function(array){
+        var resultStr = "";
+        for(var i = 0; i < array.length; i++) {
+            resultStr += String.fromCharCode(array[i]);
+        }
+        return resultStr;
+    },
+    applyCanBeUsed : {
+        /**
+         * true if the browser accepts to use String.fromCharCode on Uint8Array
+         */
+        uint8array : (function () {
+            try {
+                return support.uint8array && String.fromCharCode.apply(null, new Uint8Array(1)).length === 1;
+            } catch (e) {
+                return false;
+            }
+        })(),
+        /**
+         * true if the browser accepts to use String.fromCharCode on nodejs Buffer.
+         */
+        nodebuffer : (function () {
+            try {
+                return support.nodebuffer && String.fromCharCode.apply(null, nodejsUtils.allocBuffer(1)).length === 1;
+            } catch (e) {
+                return false;
+            }
+        })()
+    }
+};
+
+/**
+ * Transform an array-like object to a string.
+ * @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to transform.
+ * @return {String} the result.
+ */
+function arrayLikeToString(array) {
+    // Performances notes :
+    // --------------------
+    // String.fromCharCode.apply(null, array) is the fastest, see
+    // see http://jsperf.com/converting-a-uint8array-to-a-string/2
+    // but the stack is limited (and we can get huge arrays !).
+    //
+    // result += String.fromCharCode(array[i]); generate too many strings !
+    //
+    // This code is inspired by http://jsperf.com/arraybuffer-to-string-apply-performance/2
+    // TODO : we now have workers that split the work. Do we still need that ?
+    var chunk = 65536,
+        type = exports.getTypeOf(array),
+        canUseApply = true;
+    if (type === "uint8array") {
+        canUseApply = arrayToStringHelper.applyCanBeUsed.uint8array;
+    } else if (type === "nodebuffer") {
+        canUseApply = arrayToStringHelper.applyCanBeUsed.nodebuffer;
+    }
+
+    if (canUseApply) {
+        while (chunk > 1) {
+            try {
+                return arrayToStringHelper.stringifyByChunk(array, type, chunk);
+            } catch (e) {
+                chunk = Math.floor(chunk / 2);
+            }
+        }
+    }
+
+    // no apply or chunk error : slow and painful algorithm
+    // default browser on android 4.*
+    return arrayToStringHelper.stringifyByChar(array);
+}
+
+exports.applyFromCharCode = arrayLikeToString;
+
+
+/**
+ * Copy the data from an array-like to an other array-like.
+ * @param {Array|ArrayBuffer|Uint8Array|Buffer} arrayFrom the origin array.
+ * @param {Array|ArrayBuffer|Uint8Array|Buffer} arrayTo the destination array which will be mutated.
+ * @return {Array|ArrayBuffer|Uint8Array|Buffer} the updated destination array.
+ */
+function arrayLikeToArrayLike(arrayFrom, arrayTo) {
+    for (var i = 0; i < arrayFrom.length; i++) {
+        arrayTo[i] = arrayFrom[i];
+    }
+    return arrayTo;
+}
+
+// a matrix containing functions to transform everything into everything.
+var transform = {};
+
+// string to ?
+transform["string"] = {
+    "string": identity,
+    "array": function(input) {
+        return stringToArrayLike(input, new Array(input.length));
+    },
+    "arraybuffer": function(input) {
+        return transform["string"]["uint8array"](input).buffer;
+    },
+    "uint8array": function(input) {
+        return stringToArrayLike(input, new Uint8Array(input.length));
+    },
+    "nodebuffer": function(input) {
+        return stringToArrayLike(input, nodejsUtils.allocBuffer(input.length));
+    }
+};
+
+// array to ?
+transform["array"] = {
+    "string": arrayLikeToString,
+    "array": identity,
+    "arraybuffer": function(input) {
+        return (new Uint8Array(input)).buffer;
+    },
+    "uint8array": function(input) {
+        return new Uint8Array(input);
+    },
+    "nodebuffer": function(input) {
+        return nodejsUtils.newBufferFrom(input);
+    }
+};
+
+// arraybuffer to ?
+transform["arraybuffer"] = {
+    "string": function(input) {
+        return arrayLikeToString(new Uint8Array(input));
+    },
+    "array": function(input) {
+        return arrayLikeToArrayLike(new Uint8Array(input), new Array(input.byteLength));
+    },
+    "arraybuffer": identity,
+    "uint8array": function(input) {
+        return new Uint8Array(input);
+    },
+    "nodebuffer": function(input) {
+        return nodejsUtils.newBufferFrom(new Uint8Array(input));
+    }
+};
+
+// uint8array to ?
+transform["uint8array"] = {
+    "string": arrayLikeToString,
+    "array": function(input) {
+        return arrayLikeToArrayLike(input, new Array(input.length));
+    },
+    "arraybuffer": function(input) {
+        return input.buffer;
+    },
+    "uint8array": identity,
+    "nodebuffer": function(input) {
+        return nodejsUtils.newBufferFrom(input);
+    }
+};
+
+// nodebuffer to ?
+transform["nodebuffer"] = {
+    "string": arrayLikeToString,
+    "array": function(input) {
+        return arrayLikeToArrayLike(input, new Array(input.length));
+    },
+    "arraybuffer": function(input) {
+        return transform["nodebuffer"]["uint8array"](input).buffer;
+    },
+    "uint8array": function(input) {
+        return arrayLikeToArrayLike(input, new Uint8Array(input.length));
+    },
+    "nodebuffer": identity
+};
+
+/**
+ * Transform an input into any type.
+ * The supported output type are : string, array, uint8array, arraybuffer, nodebuffer.
+ * If no output type is specified, the unmodified input will be returned.
+ * @param {String} outputType the output type.
+ * @param {String|Array|ArrayBuffer|Uint8Array|Buffer} input the input to convert.
+ * @throws {Error} an Error if the browser doesn't support the requested output type.
+ */
+exports.transformTo = function(outputType, input) {
+    if (!input) {
+        // undefined, null, etc
+        // an empty string won't harm.
+        input = "";
+    }
+    if (!outputType) {
+        return input;
+    }
+    exports.checkSupport(outputType);
+    var inputType = exports.getTypeOf(input);
+    var result = transform[inputType][outputType](input);
+    return result;
+};
+
+/**
+ * Return the type of the input.
+ * The type will be in a format valid for JSZip.utils.transformTo : string, array, uint8array, arraybuffer.
+ * @param {Object} input the input to identify.
+ * @return {String} the (lowercase) type of the input.
+ */
+exports.getTypeOf = function(input) {
+    if (typeof input === "string") {
+        return "string";
+    }
+    if (Object.prototype.toString.call(input) === "[object Array]") {
+        return "array";
+    }
+    if (support.nodebuffer && nodejsUtils.isBuffer(input)) {
+        return "nodebuffer";
+    }
+    if (support.uint8array && input instanceof Uint8Array) {
+        return "uint8array";
+    }
+    if (support.arraybuffer && input instanceof ArrayBuffer) {
+        return "arraybuffer";
+    }
+};
+
+/**
+ * Throw an exception if the type is not supported.
+ * @param {String} type the type to check.
+ * @throws {Error} an Error if the browser doesn't support the requested type.
+ */
+exports.checkSupport = function(type) {
+    var supported = support[type.toLowerCase()];
+    if (!supported) {
+        throw new Error(type + " is not supported by this platform");
+    }
+};
+
+exports.MAX_VALUE_16BITS = 65535;
+exports.MAX_VALUE_32BITS = -1; // well, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF" is parsed as -1
+
+/**
+ * Prettify a string read as binary.
+ * @param {string} str the string to prettify.
+ * @return {string} a pretty string.
+ */
+exports.pretty = function(str) {
+    var res = '',
+        code, i;
+    for (i = 0; i < (str || "").length; i++) {
+        code = str.charCodeAt(i);
+        res += '\\x' + (code < 16 ? "0" : "") + code.toString(16).toUpperCase();
+    }
+    return res;
+};
+
+/**
+ * Defer the call of a function.
+ * @param {Function} callback the function to call asynchronously.
+ * @param {Array} args the arguments to give to the callback.
+ */
+exports.delay = function(callback, args, self) {
+    setImmediate(function () {
+        callback.apply(self || null, args || []);
+    });
+};
+
+/**
+ * Extends a prototype with an other, without calling a constructor with
+ * side effects. Inspired by nodejs' `utils.inherits`
+ * @param {Function} ctor the constructor to augment
+ * @param {Function} superCtor the parent constructor to use
+ */
+exports.inherits = function (ctor, superCtor) {
+    var Obj = function() {};
+    Obj.prototype = superCtor.prototype;
+    ctor.prototype = new Obj();
+};
+
+/**
+ * Merge the objects passed as parameters into a new one.
+ * @private
+ * @param {...Object} var_args All objects to merge.
+ * @return {Object} a new object with the data of the others.
+ */
+exports.extend = function() {
+    var result = {}, i, attr;
+    for (i = 0; i < arguments.length; i++) { // arguments is not enumerable in some browsers
+        for (attr in arguments[i]) {
+            if (arguments[i].hasOwnProperty(attr) && typeof result[attr] === "undefined") {
+                result[attr] = arguments[i][attr];
+            }
+        }
+    }
+    return result;
+};
+
+/**
+ * Transform arbitrary content into a Promise.
+ * @param {String} name a name for the content being processed.
+ * @param {Object} inputData the content to process.
+ * @param {Boolean} isBinary true if the content is not an unicode string
+ * @param {Boolean} isOptimizedBinaryString true if the string content only has one byte per character.
+ * @param {Boolean} isBase64 true if the string content is encoded with base64.
+ * @return {Promise} a promise in a format usable by JSZip.
+ */
+exports.prepareContent = function(name, inputData, isBinary, isOptimizedBinaryString, isBase64) {
+
+    // if inputData is already a promise, this flatten it.
+    var promise = external.Promise.resolve(inputData).then(function(data) {
+        
+        
+        var isBlob = support.blob && (data instanceof Blob || ['[object File]', '[object Blob]'].indexOf(Object.prototype.toString.call(data)) !== -1);
+
+        if (isBlob && typeof FileReader !== "undefined") {
+            return new external.Promise(function (resolve, reject) {
+                var reader = new FileReader();
+
+                reader.onload = function(e) {
+                    resolve(e.target.result);
+                };
+                reader.onerror = function(e) {
+                    reject(e.target.error);
+                };
+                reader.readAsArrayBuffer(data);
+            });
+        } else {
+            return data;
+        }
+    });
+
+    return promise.then(function(data) {
+        var dataType = exports.getTypeOf(data);
+
+        if (!dataType) {
+            return external.Promise.reject(
+                new Error("Can't read the data of '" + name + "'. Is it " +
+                          "in a supported JavaScript type (String, Blob, ArrayBuffer, etc) ?")
+            );
+        }
+        // special case : it's way easier to work with Uint8Array than with ArrayBuffer
+        if (dataType === "arraybuffer") {
+            data = exports.transformTo("uint8array", data);
+        } else if (dataType === "string") {
+            if (isBase64) {
+                data = base64.decode(data);
+            }
+            else if (isBinary) {
+                // optimizedBinaryString === true means that the file has already been filtered with a 0xFF mask
+                if (isOptimizedBinaryString !== true) {
+                    // this is a string, not in a base64 format.
+                    // Be sure that this is a correct "binary string"
+                    data = string2binary(data);
+                }
+            }
+        }
+        return data;
+    });
+};
+
+},{"./base64":11,"./external":16,"./nodejsUtils":22,"./support":40,"set-immediate-shim":79}],43:[function(require,module,exports){
+'use strict';
+var readerFor = require('./reader/readerFor');
+var utils = require('./utils');
+var sig = require('./signature');
+var ZipEntry = require('./zipEntry');
+var utf8 = require('./utf8');
+var support = require('./support');
+//  class ZipEntries {{{
+/**
+ * All the entries in the zip file.
+ * @constructor
+ * @param {Object} loadOptions Options for loading the stream.
+ */
+function ZipEntries(loadOptions) {
+    this.files = [];
+    this.loadOptions = loadOptions;
+}
+ZipEntries.prototype = {
+    /**
+     * Check that the reader is on the specified signature.
+     * @param {string} expectedSignature the expected signature.
+     * @throws {Error} if it is an other signature.
+     */
+    checkSignature: function(expectedSignature) {
+        if (!this.reader.readAndCheckSignature(expectedSignature)) {
+            this.reader.index -= 4;
+            var signature = this.reader.readString(4);
+            throw new Error("Corrupted zip or bug: unexpected signature " + "(" + utils.pretty(signature) + ", expected " + utils.pretty(expectedSignature) + ")");
+        }
+    },
+    /**
+     * Check if the given signature is at the given index.
+     * @param {number} askedIndex the index to check.
+     * @param {string} expectedSignature the signature to expect.
+     * @return {boolean} true if the signature is here, false otherwise.
+     */
+    isSignature: function(askedIndex, expectedSignature) {
+        var currentIndex = this.reader.index;
+        this.reader.setIndex(askedIndex);
+        var signature = this.reader.readString(4);
+        var result = signature === expectedSignature;
+        this.reader.setIndex(currentIndex);
+        return result;
+    },
+    /**
+     * Read the end of the central directory.
+     */
+    readBlockEndOfCentral: function() {
+        this.diskNumber = this.reader.readInt(2);
+        this.diskWithCentralDirStart = this.reader.readInt(2);
+        this.centralDirRecordsOnThisDisk = this.reader.readInt(2);
+        this.centralDirRecords = this.reader.readInt(2);
+        this.centralDirSize = this.reader.readInt(4);
+        this.centralDirOffset = this.reader.readInt(4);
+
+        this.zipCommentLength = this.reader.readInt(2);
+        // warning : the encoding depends of the system locale
+        // On a linux machine with LANG=en_US.utf8, this field is utf8 encoded.
+        // On a windows machine, this field is encoded with the localized windows code page.
+        var zipComment = this.reader.readData(this.zipCommentLength);
+        var decodeParamType = support.uint8array ? "uint8array" : "array";
+        // To get consistent behavior with the generation part, we will assume that
+        // this is utf8 encoded unless specified otherwise.
+        var decodeContent = utils.transformTo(decodeParamType, zipComment);
+        this.zipComment = this.loadOptions.decodeFileName(decodeContent);
+    },
+    /**
+     * Read the end of the Zip 64 central directory.
+     * Not merged with the method readEndOfCentral :
+     * The end of central can coexist with its Zip64 brother,
+     * I don't want to read the wrong number of bytes !
+     */
+    readBlockZip64EndOfCentral: function() {
+        this.zip64EndOfCentralSize = this.reader.readInt(8);
+        this.reader.skip(4);
+        // this.versionMadeBy = this.reader.readString(2);
+        // this.versionNeeded = this.reader.readInt(2);
+        this.diskNumber = this.reader.readInt(4);
+        this.diskWithCentralDirStart = this.reader.readInt(4);
+        this.centralDirRecordsOnThisDisk = this.reader.readInt(8);
+        this.centralDirRecords = this.reader.readInt(8);
+        this.centralDirSize = this.reader.readInt(8);
+        this.centralDirOffset = this.reader.readInt(8);
+
+        this.zip64ExtensibleData = {};
+        var extraDataSize = this.zip64EndOfCentralSize - 44,
+            index = 0,
+            extraFieldId,
+            extraFieldLength,
+            extraFieldValue;
+        while (index < extraDataSize) {
+            extraFieldId = this.reader.readInt(2);
+            extraFieldLength = this.reader.readInt(4);
+            extraFieldValue = this.reader.readData(extraFieldLength);
+            this.zip64ExtensibleData[extraFieldId] = {
+                id: extraFieldId,
+                length: extraFieldLength,
+                value: extraFieldValue
+            };
+        }
+    },
+    /**
+     * Read the end of the Zip 64 central directory locator.
+     */
+    readBlockZip64EndOfCentralLocator: function() {
+        this.diskWithZip64CentralDirStart = this.reader.readInt(4);
+        this.relativeOffsetEndOfZip64CentralDir = this.reader.readInt(8);
+        this.disksCount = this.reader.readInt(4);
+        if (this.disksCount > 1) {
+            throw new Error("Multi-volumes zip are not supported");
+        }
+    },
+    /**
+     * Read the local files, based on the offset read in the central part.
+     */
+    readLocalFiles: function() {
+        var i, file;
+        for (i = 0; i < this.files.length; i++) {
+            file = this.files[i];
+            this.reader.setIndex(file.localHeaderOffset);
+            this.checkSignature(sig.LOCAL_FILE_HEADER);
+            file.readLocalPart(this.reader);
+            file.handleUTF8();
+            file.processAttributes();
+        }
+    },
+    /**
+     * Read the central directory.
+     */
+    readCentralDir: function() {
+        var file;
+
+        this.reader.setIndex(this.centralDirOffset);
+        while (this.reader.readAndCheckSignature(sig.CENTRAL_FILE_HEADER)) {
+            file = new ZipEntry({
+                zip64: this.zip64
+            }, this.loadOptions);
+            file.readCentralPart(this.reader);
+            this.files.push(file);
+        }
+
+        if (this.centralDirRecords !== this.files.length) {
+            if (this.centralDirRecords !== 0 && this.files.length === 0) {
+                // We expected some records but couldn't find ANY.
+                // This is really suspicious, as if something went wrong.
+                throw new Error("Corrupted zip or bug: expected " + this.centralDirRecords + " records in central dir, got " + this.files.length);
+            } else {
+                // We found some records but not all.
+                // Something is wrong but we got something for the user: no error here.
+                // console.warn("expected", this.centralDirRecords, "records in central dir, got", this.files.length);
+            }
+        }
+    },
+    /**
+     * Read the end of central directory.
+     */
+    readEndOfCentral: function() {
+        var offset = this.reader.lastIndexOfSignature(sig.CENTRAL_DIRECTORY_END);
+        if (offset < 0) {
+            // Check if the content is a truncated zip or complete garbage.
+            // A "LOCAL_FILE_HEADER" is not required at the beginning (auto
+            // extractible zip for example) but it can give a good hint.
+            // If an ajax request was used without responseType, we will also
+            // get unreadable data.
+            var isGarbage = !this.isSignature(0, sig.LOCAL_FILE_HEADER);
+
+            if (isGarbage) {
+                throw new Error("Can't find end of central directory : is this a zip file ? " +
+                                "If it is, see https://stuk.github.io/jszip/documentation/howto/read_zip.html");
+            } else {
+                throw new Error("Corrupted zip: can't find end of central directory");
+            }
+
+        }
+        this.reader.setIndex(offset);
+        var endOfCentralDirOffset = offset;
+        this.checkSignature(sig.CENTRAL_DIRECTORY_END);
+        this.readBlockEndOfCentral();
+
+
+        /* extract from the zip spec :
+            4)  If one of the fields in the end of central directory
+                record is too small to hold required data, the field
+                should be set to -1 (0xFFFF or 0xFFFFFFFF) and the
+                ZIP64 format record should be created.
+            5)  The end of central directory record and the
+                Zip64 end of central directory locator record must
+                reside on the same disk when splitting or spanning
+                an archive.
+         */
+        if (this.diskNumber === utils.MAX_VALUE_16BITS || this.diskWithCentralDirStart === utils.MAX_VALUE_16BITS || this.centralDirRecordsOnThisDisk === utils.MAX_VALUE_16BITS || this.centralDirRecords === utils.MAX_VALUE_16BITS || this.centralDirSize === utils.MAX_VALUE_32BITS || this.centralDirOffset === utils.MAX_VALUE_32BITS) {
+            this.zip64 = true;
+
+            /*
+            Warning : the zip64 extension is supported, but ONLY if the 64bits integer read from
+            the zip file can fit into a 32bits integer. This cannot be solved : JavaScript represents
+            all numbers as 64-bit double precision IEEE 754 floating point numbers.
+            So, we have 53bits for integers and bitwise operations treat everything as 32bits.
+            see https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Operators/Bitwise_Operators
+            and http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf section 8.5
+            */
+
+            // should look for a zip64 EOCD locator
+            offset = this.reader.lastIndexOfSignature(sig.ZIP64_CENTRAL_DIRECTORY_LOCATOR);
+            if (offset < 0) {
+                throw new Error("Corrupted zip: can't find the ZIP64 end of central directory locator");
+            }
+            this.reader.setIndex(offset);
+            this.checkSignature(sig.ZIP64_CENTRAL_DIRECTORY_LOCATOR);
+            this.readBlockZip64EndOfCentralLocator();
+
+            // now the zip64 EOCD record
+            if (!this.isSignature(this.relativeOffsetEndOfZip64CentralDir, sig.ZIP64_CENTRAL_DIRECTORY_END)) {
+                // console.warn("ZIP64 end of central directory not where expected.");
+                this.relativeOffsetEndOfZip64CentralDir = this.reader.lastIndexOfSignature(sig.ZIP64_CENTRAL_DIRECTORY_END);
+                if (this.relativeOffsetEndOfZip64CentralDir < 0) {
+                    throw new Error("Corrupted zip: can't find the ZIP64 end of central directory");
+                }
+            }
+            this.reader.setIndex(this.relativeOffsetEndOfZip64CentralDir);
+            this.checkSignature(sig.ZIP64_CENTRAL_DIRECTORY_END);
+            this.readBlockZip64EndOfCentral();
+        }
+
+        var expectedEndOfCentralDirOffset = this.centralDirOffset + this.centralDirSize;
+        if (this.zip64) {
+            expectedEndOfCentralDirOffset += 20; // end of central dir 64 locator
+            expectedEndOfCentralDirOffset += 12 /* should not include the leading 12 bytes */ + this.zip64EndOfCentralSize;
+        }
+
+        var extraBytes = endOfCentralDirOffset - expectedEndOfCentralDirOffset;
+
+        if (extraBytes > 0) {
+            // console.warn(extraBytes, "extra bytes at beginning or within zipfile");
+            if (this.isSignature(endOfCentralDirOffset, sig.CENTRAL_FILE_HEADER)) {
+                // The offsets seem wrong, but we have something at the specified offset.
+                // So… we keep it.
+            } else {
+                // the offset is wrong, update the "zero" of the reader
+                // this happens if data has been prepended (crx files for example)
+                this.reader.zero = extraBytes;
+            }
+        } else if (extraBytes < 0) {
+            throw new Error("Corrupted zip: missing " + Math.abs(extraBytes) + " bytes.");
+        }
+    },
+    prepareReader: function(data) {
+        this.reader = readerFor(data);
+    },
+    /**
+     * Read a zip file and create ZipEntries.
+     * @param {String|ArrayBuffer|Uint8Array|Buffer} data the binary string representing a zip file.
+     */
+    load: function(data) {
+        this.prepareReader(data);
+        this.readEndOfCentral();
+        this.readCentralDir();
+        this.readLocalFiles();
+    }
+};
+// }}} end of ZipEntries
+module.exports = ZipEntries;
+
+},{"./reader/readerFor":32,"./signature":33,"./support":40,"./utf8":41,"./utils":42,"./zipEntry":44}],44:[function(require,module,exports){
+'use strict';
+var readerFor = require('./reader/readerFor');
+var utils = require('./utils');
+var CompressedObject = require('./compressedObject');
+var crc32fn = require('./crc32');
+var utf8 = require('./utf8');
+var compressions = require('./compressions');
+var support = require('./support');
+
+var MADE_BY_DOS = 0x00;
+var MADE_BY_UNIX = 0x03;
+
+/**
+ * Find a compression registered in JSZip.
+ * @param {string} compressionMethod the method magic to find.
+ * @return {Object|null} the JSZip compression object, null if none found.
+ */
+var findCompression = function(compressionMethod) {
+    for (var method in compressions) {
+        if (!compressions.hasOwnProperty(method)) {
+            continue;
+        }
+        if (compressions[method].magic === compressionMethod) {
+            return compressions[method];
+        }
+    }
+    return null;
+};
+
+// class ZipEntry {{{
+/**
+ * An entry in the zip file.
+ * @constructor
+ * @param {Object} options Options of the current file.
+ * @param {Object} loadOptions Options for loading the stream.
+ */
+function ZipEntry(options, loadOptions) {
+    this.options = options;
+    this.loadOptions = loadOptions;
+}
+ZipEntry.prototype = {
+    /**
+     * say if the file is encrypted.
+     * @return {boolean} true if the file is encrypted, false otherwise.
+     */
+    isEncrypted: function() {
+        // bit 1 is set
+        return (this.bitFlag & 0x0001) === 0x0001;
+    },
+    /**
+     * say if the file has utf-8 filename/comment.
+     * @return {boolean} true if the filename/comment is in utf-8, false otherwise.
+     */
+    useUTF8: function() {
+        // bit 11 is set
+        return (this.bitFlag & 0x0800) === 0x0800;
+    },
+    /**
+     * Read the local part of a zip file and add the info in this object.
+     * @param {DataReader} reader the reader to use.
+     */
+    readLocalPart: function(reader) {
+        var compression, localExtraFieldsLength;
+
+        // we already know everything from the central dir !
+        // If the central dir data are false, we are doomed.
+        // On the bright side, the local part is scary  : zip64, data descriptors, both, etc.
+        // The less data we get here, the more reliable this should be.
+        // Let's skip the whole header and dash to the data !
+        reader.skip(22);
+        // in some zip created on windows, the filename stored in the central dir contains \ instead of /.
+        // Strangely, the filename here is OK.
+        // I would love to treat these zip files as corrupted (see http://www.info-zip.org/FAQ.html#backslashes
+        // or APPNOTE#4.4.17.1, "All slashes MUST be forward slashes '/'") but there are a lot of bad zip generators...
+        // Search "unzip mismatching "local" filename continuing with "central" filename version" on
+        // the internet.
+        //
+        // I think I see the logic here : the central directory is used to display
+        // content and the local directory is used to extract the files. Mixing / and \
+        // may be used to display \ to windows users and use / when extracting the files.
+        // Unfortunately, this lead also to some issues : http://seclists.org/fulldisclosure/2009/Sep/394
+        this.fileNameLength = reader.readInt(2);
+        localExtraFieldsLength = reader.readInt(2); // can't be sure this will be the same as the central dir
+        // the fileName is stored as binary data, the handleUTF8 method will take care of the encoding.
+        this.fileName = reader.readData(this.fileNameLength);
+        reader.skip(localExtraFieldsLength);
+
+        if (this.compressedSize === -1 || this.uncompressedSize === -1) {
+            throw new Error("Bug or corrupted zip : didn't get enough information from the central directory " + "(compressedSize === -1 || uncompressedSize === -1)");
+        }
+
+        compression = findCompression(this.compressionMethod);
+        if (compression === null) { // no compression found
+            throw new Error("Corrupted zip : compression " + utils.pretty(this.compressionMethod) + " unknown (inner file : " + utils.transformTo("string", this.fileName) + ")");
+        }
+        this.decompressed = new CompressedObject(this.compressedSize, this.uncompressedSize, this.crc32, compression, reader.readData(this.compressedSize));
+    },
+
+    /**
+     * Read the central part of a zip file and add the info in this object.
+     * @param {DataReader} reader the reader to use.
+     */
+    readCentralPart: function(reader) {
+        this.versionMadeBy = reader.readInt(2);
+        reader.skip(2);
+        // this.versionNeeded = reader.readInt(2);
+        this.bitFlag = reader.readInt(2);
+        this.compressionMethod = reader.readString(2);
+        this.date = reader.readDate();
+        this.crc32 = reader.readInt(4);
+        this.compressedSize = reader.readInt(4);
+        this.uncompressedSize = reader.readInt(4);
+        var fileNameLength = reader.readInt(2);
+        this.extraFieldsLength = reader.readInt(2);
+        this.fileCommentLength = reader.readInt(2);
+        this.diskNumberStart = reader.readInt(2);
+        this.internalFileAttributes = reader.readInt(2);
+        this.externalFileAttributes = reader.readInt(4);
+        this.localHeaderOffset = reader.readInt(4);
+
+        if (this.isEncrypted()) {
+            throw new Error("Encrypted zip are not supported");
+        }
+
+        // will be read in the local part, see the comments there
+        reader.skip(fileNameLength);
+        this.readExtraFields(reader);
+        this.parseZIP64ExtraField(reader);
+        this.fileComment = reader.readData(this.fileCommentLength);
+    },
+
+    /**
+     * Parse the external file attributes and get the unix/dos permissions.
+     */
+    processAttributes: function () {
+        this.unixPermissions = null;
+        this.dosPermissions = null;
+        var madeBy = this.versionMadeBy >> 8;
+
+        // Check if we have the DOS directory flag set.
+        // We look for it in the DOS and UNIX permissions
+        // but some unknown platform could set it as a compatibility flag.
+        this.dir = this.externalFileAttributes & 0x0010 ? true : false;
+
+        if(madeBy === MADE_BY_DOS) {
+            // first 6 bits (0 to 5)
+            this.dosPermissions = this.externalFileAttributes & 0x3F;
+        }
+
+        if(madeBy === MADE_BY_UNIX) {
+            this.unixPermissions = (this.externalFileAttributes >> 16) & 0xFFFF;
+            // the octal permissions are in (this.unixPermissions & 0x01FF).toString(8);
+        }
+
+        // fail safe : if the name ends with a / it probably means a folder
+        if (!this.dir && this.fileNameStr.slice(-1) === '/') {
+            this.dir = true;
+        }
+    },
+
+    /**
+     * Parse the ZIP64 extra field and merge the info in the current ZipEntry.
+     * @param {DataReader} reader the reader to use.
+     */
+    parseZIP64ExtraField: function(reader) {
+
+        if (!this.extraFields[0x0001]) {
+            return;
+        }
+
+        // should be something, preparing the extra reader
+        var extraReader = readerFor(this.extraFields[0x0001].value);
+
+        // I really hope that these 64bits integer can fit in 32 bits integer, because js
+        // won't let us have more.
+        if (this.uncompressedSize === utils.MAX_VALUE_32BITS) {
+            this.uncompressedSize = extraReader.readInt(8);
+        }
+        if (this.compressedSize === utils.MAX_VALUE_32BITS) {
+            this.compressedSize = extraReader.readInt(8);
+        }
+        if (this.localHeaderOffset === utils.MAX_VALUE_32BITS) {
+            this.localHeaderOffset = extraReader.readInt(8);
+        }
+        if (this.diskNumberStart === utils.MAX_VALUE_32BITS) {
+            this.diskNumberStart = extraReader.readInt(4);
+        }
+    },
+    /**
+     * Read the central part of a zip file and add the info in this object.
+     * @param {DataReader} reader the reader to use.
+     */
+    readExtraFields: function(reader) {
+        var end = reader.index + this.extraFieldsLength,
+            extraFieldId,
+            extraFieldLength,
+            extraFieldValue;
+
+        if (!this.extraFields) {
+            this.extraFields = {};
+        }
+
+        while (reader.index + 4 < end) {
+            extraFieldId = reader.readInt(2);
+            extraFieldLength = reader.readInt(2);
+            extraFieldValue = reader.readData(extraFieldLength);
+
+            this.extraFields[extraFieldId] = {
+                id: extraFieldId,
+                length: extraFieldLength,
+                value: extraFieldValue
+            };
+        }
+
+        reader.setIndex(end);
+    },
+    /**
+     * Apply an UTF8 transformation if needed.
+     */
+    handleUTF8: function() {
+        var decodeParamType = support.uint8array ? "uint8array" : "array";
+        if (this.useUTF8()) {
+            this.fileNameStr = utf8.utf8decode(this.fileName);
+            this.fileCommentStr = utf8.utf8decode(this.fileComment);
+        } else {
+            var upath = this.findExtraFieldUnicodePath();
+            if (upath !== null) {
+                this.fileNameStr = upath;
+            } else {
+                // ASCII text or unsupported code page
+                var fileNameByteArray =  utils.transformTo(decodeParamType, this.fileName);
+                this.fileNameStr = this.loadOptions.decodeFileName(fileNameByteArray);
+            }
+
+            var ucomment = this.findExtraFieldUnicodeComment();
+            if (ucomment !== null) {
+                this.fileCommentStr = ucomment;
+            } else {
+                // ASCII text or unsupported code page
+                var commentByteArray =  utils.transformTo(decodeParamType, this.fileComment);
+                this.fileCommentStr = this.loadOptions.decodeFileName(commentByteArray);
+            }
+        }
+    },
+
+    /**
+     * Find the unicode path declared in the extra field, if any.
+     * @return {String} the unicode path, null otherwise.
+     */
+    findExtraFieldUnicodePath: function() {
+        var upathField = this.extraFields[0x7075];
+        if (upathField) {
+            var extraReader = readerFor(upathField.value);
+
+            // wrong version
+            if (extraReader.readInt(1) !== 1) {
+                return null;
+            }
+
+            // the crc of the filename changed, this field is out of date.
+            if (crc32fn(this.fileName) !== extraReader.readInt(4)) {
+                return null;
+            }
+
+            return utf8.utf8decode(extraReader.readData(upathField.length - 5));
+        }
+        return null;
+    },
+
+    /**
+     * Find the unicode comment declared in the extra field, if any.
+     * @return {String} the unicode comment, null otherwise.
+     */
+    findExtraFieldUnicodeComment: function() {
+        var ucommentField = this.extraFields[0x6375];
+        if (ucommentField) {
+            var extraReader = readerFor(ucommentField.value);
+
+            // wrong version
+            if (extraReader.readInt(1) !== 1) {
+                return null;
+            }
+
+            // the crc of the comment changed, this field is out of date.
+            if (crc32fn(this.fileComment) !== extraReader.readInt(4)) {
+                return null;
+            }
+
+            return utf8.utf8decode(extraReader.readData(ucommentField.length - 5));
+        }
+        return null;
+    }
+};
+module.exports = ZipEntry;
+
+},{"./compressedObject":12,"./compressions":13,"./crc32":14,"./reader/readerFor":32,"./support":40,"./utf8":41,"./utils":42}],45:[function(require,module,exports){
+'use strict';
+
+var StreamHelper = require('./stream/StreamHelper');
+var DataWorker = require('./stream/DataWorker');
+var utf8 = require('./utf8');
+var CompressedObject = require('./compressedObject');
+var GenericWorker = require('./stream/GenericWorker');
+
+/**
+ * A simple object representing a file in the zip file.
+ * @constructor
+ * @param {string} name the name of the file
+ * @param {String|ArrayBuffer|Uint8Array|Buffer} data the data
+ * @param {Object} options the options of the file
+ */
+var ZipObject = function(name, data, options) {
+    this.name = name;
+    this.dir = options.dir;
+    this.date = options.date;
+    this.comment = options.comment;
+    this.unixPermissions = options.unixPermissions;
+    this.dosPermissions = options.dosPermissions;
+
+    this._data = data;
+    this._dataBinary = options.binary;
+    // keep only the compression
+    this.options = {
+        compression : options.compression,
+        compressionOptions : options.compressionOptions
+    };
+};
+
+ZipObject.prototype = {
+    /**
+     * Create an internal stream for the content of this object.
+     * @param {String} type the type of each chunk.
+     * @return StreamHelper the stream.
+     */
+    internalStream: function (type) {
+        var result = null, outputType = "string";
+        try {
+            if (!type) {
+                throw new Error("No output type specified.");
+            }
+            outputType = type.toLowerCase();
+            var askUnicodeString = outputType === "string" || outputType === "text";
+            if (outputType === "binarystring" || outputType === "text") {
+                outputType = "string";
+            }
+            result = this._decompressWorker();
+
+            var isUnicodeString = !this._dataBinary;
+
+            if (isUnicodeString && !askUnicodeString) {
+                result = result.pipe(new utf8.Utf8EncodeWorker());
+            }
+            if (!isUnicodeString && askUnicodeString) {
+                result = result.pipe(new utf8.Utf8DecodeWorker());
+            }
+        } catch (e) {
+            result = new GenericWorker("error");
+            result.error(e);
+        }
+
+        return new StreamHelper(result, outputType, "");
+    },
+
+    /**
+     * Prepare the content in the asked type.
+     * @param {String} type the type of the result.
+     * @param {Function} onUpdate a function to call on each internal update.
+     * @return Promise the promise of the result.
+     */
+    async: function (type, onUpdate) {
+        return this.internalStream(type).accumulate(onUpdate);
+    },
+
+    /**
+     * Prepare the content as a nodejs stream.
+     * @param {String} type the type of each chunk.
+     * @param {Function} onUpdate a function to call on each internal update.
+     * @return Stream the stream.
+     */
+    nodeStream: function (type, onUpdate) {
+        return this.internalStream(type || "nodebuffer").toNodejsStream(onUpdate);
+    },
+
+    /**
+     * Return a worker for the compressed content.
+     * @private
+     * @param {Object} compression the compression object to use.
+     * @param {Object} compressionOptions the options to use when compressing.
+     * @return Worker the worker.
+     */
+    _compressWorker: function (compression, compressionOptions) {
+        if (
+            this._data instanceof CompressedObject &&
+            this._data.compression.magic === compression.magic
+        ) {
+            return this._data.getCompressedWorker();
+        } else {
+            var result = this._decompressWorker();
+            if(!this._dataBinary) {
+                result = result.pipe(new utf8.Utf8EncodeWorker());
+            }
+            return CompressedObject.createWorkerFrom(result, compression, compressionOptions);
+        }
+    },
+    /**
+     * Return a worker for the decompressed content.
+     * @private
+     * @return Worker the worker.
+     */
+    _decompressWorker : function () {
+        if (this._data instanceof CompressedObject) {
+            return this._data.getContentWorker();
+        } else if (this._data instanceof GenericWorker) {
+            return this._data;
+        } else {
+            return new DataWorker(this._data);
+        }
+    }
+};
+
+var removedMethods = ["asText", "asBinary", "asNodeBuffer", "asUint8Array", "asArrayBuffer"];
+var removedFn = function () {
+    throw new Error("This method has been removed in JSZip 3.0, please check the upgrade guide.");
+};
+
+for(var i = 0; i < removedMethods.length; i++) {
+    ZipObject.prototype[removedMethods[i]] = removedFn;
+}
+module.exports = ZipObject;
+
+},{"./compressedObject":12,"./stream/DataWorker":37,"./stream/GenericWorker":38,"./stream/StreamHelper":39,"./utf8":41}],46:[function(require,module,exports){
+'use strict';
+var immediate = require('immediate');
+
+/* istanbul ignore next */
+function INTERNAL() {}
+
+var handlers = {};
+
+var REJECTED = ['REJECTED'];
+var FULFILLED = ['FULFILLED'];
+var PENDING = ['PENDING'];
+
+module.exports = Promise;
+
+function Promise(resolver) {
+  if (typeof resolver !== 'function') {
+    throw new TypeError('resolver must be a function');
+  }
+  this.state = PENDING;
+  this.queue = [];
+  this.outcome = void 0;
+  if (resolver !== INTERNAL) {
+    safelyResolveThenable(this, resolver);
+  }
+}
+
+Promise.prototype["finally"] = function (callback) {
+  if (typeof callback !== 'function') {
+    return this;
+  }
+  var p = this.constructor;
+  return this.then(resolve, reject);
+
+  function resolve(value) {
+    function yes () {
+      return value;
+    }
+    return p.resolve(callback()).then(yes);
+  }
+  function reject(reason) {
+    function no () {
+      throw reason;
+    }
+    return p.resolve(callback()).then(no);
+  }
+};
+Promise.prototype["catch"] = function (onRejected) {
+  return this.then(null, onRejected);
+};
+Promise.prototype.then = function (onFulfilled, onRejected) {
+  if (typeof onFulfilled !== 'function' && this.state === FULFILLED ||
+    typeof onRejected !== 'function' && this.state === REJECTED) {
+    return this;
+  }
+  var promise = new this.constructor(INTERNAL);
+  if (this.state !== PENDING) {
+    var resolver = this.state === FULFILLED ? onFulfilled : onRejected;
+    unwrap(promise, resolver, this.outcome);
+  } else {
+    this.queue.push(new QueueItem(promise, onFulfilled, onRejected));
+  }
+
+  return promise;
+};
+function QueueItem(promise, onFulfilled, onRejected) {
+  this.promise = promise;
+  if (typeof onFulfilled === 'function') {
+    this.onFulfilled = onFulfilled;
+    this.callFulfilled = this.otherCallFulfilled;
+  }
+  if (typeof onRejected === 'function') {
+    this.onRejected = onRejected;
+    this.callRejected = this.otherCallRejected;
+  }
+}
+QueueItem.prototype.callFulfilled = function (value) {
+  handlers.resolve(this.promise, value);
+};
+QueueItem.prototype.otherCallFulfilled = function (value) {
+  unwrap(this.promise, this.onFulfilled, value);
+};
+QueueItem.prototype.callRejected = function (value) {
+  handlers.reject(this.promise, value);
+};
+QueueItem.prototype.otherCallRejected = function (value) {
+  unwrap(this.promise, this.onRejected, value);
+};
+
+function unwrap(promise, func, value) {
+  immediate(function () {
+    var returnValue;
+    try {
+      returnValue = func(value);
+    } catch (e) {
+      return handlers.reject(promise, e);
+    }
+    if (returnValue === promise) {
+      handlers.reject(promise, new TypeError('Cannot resolve promise with itself'));
+    } else {
+      handlers.resolve(promise, returnValue);
+    }
+  });
+}
+
+handlers.resolve = function (self, value) {
+  var result = tryCatch(getThen, value);
+  if (result.status === 'error') {
+    return handlers.reject(self, result.value);
+  }
+  var thenable = result.value;
+
+  if (thenable) {
+    safelyResolveThenable(self, thenable);
+  } else {
+    self.state = FULFILLED;
+    self.outcome = value;
+    var i = -1;
+    var len = self.queue.length;
+    while (++i < len) {
+      self.queue[i].callFulfilled(value);
+    }
+  }
+  return self;
+};
+handlers.reject = function (self, error) {
+  self.state = REJECTED;
+  self.outcome = error;
+  var i = -1;
+  var len = self.queue.length;
+  while (++i < len) {
+    self.queue[i].callRejected(error);
+  }
+  return self;
+};
+
+function getThen(obj) {
+  // Make sure we only access the accessor once as required by the spec
+  var then = obj && obj.then;
+  if (obj && (typeof obj === 'object' || typeof obj === 'function') && typeof then === 'function') {
+    return function appyThen() {
+      then.apply(obj, arguments);
+    };
+  }
+}
+
+function safelyResolveThenable(self, thenable) {
+  // Either fulfill, reject or reject with error
+  var called = false;
+  function onError(value) {
+    if (called) {
+      return;
+    }
+    called = true;
+    handlers.reject(self, value);
+  }
+
+  function onSuccess(value) {
+    if (called) {
+      return;
+    }
+    called = true;
+    handlers.resolve(self, value);
+  }
+
+  function tryToUnwrap() {
+    thenable(onSuccess, onError);
+  }
+
+  var result = tryCatch(tryToUnwrap);
+  if (result.status === 'error') {
+    onError(result.value);
+  }
+}
+
+function tryCatch(func, value) {
+  var out = {};
+  try {
+    out.value = func(value);
+    out.status = 'success';
+  } catch (e) {
+    out.status = 'error';
+    out.value = e;
+  }
+  return out;
+}
+
+Promise.resolve = resolve;
+function resolve(value) {
+  if (value instanceof this) {
+    return value;
+  }
+  return handlers.resolve(new this(INTERNAL), value);
+}
+
+Promise.reject = reject;
+function reject(reason) {
+  var promise = new this(INTERNAL);
+  return handlers.reject(promise, reason);
+}
+
+Promise.all = all;
+function all(iterable) {
+  var self = this;
+  if (Object.prototype.toString.call(iterable) !== '[object Array]') {
+    return this.reject(new TypeError('must be an array'));
+  }
+
+  var len = iterable.length;
+  var called = false;
+  if (!len) {
+    return this.resolve([]);
+  }
+
+  var values = new Array(len);
+  var resolved = 0;
+  var i = -1;
+  var promise = new this(INTERNAL);
+
+  while (++i < len) {
+    allResolver(iterable[i], i);
+  }
+  return promise;
+  function allResolver(value, i) {
+    self.resolve(value).then(resolveFromAll, function (error) {
+      if (!called) {
+        called = true;
+        handlers.reject(promise, error);
+      }
+    });
+    function resolveFromAll(outValue) {
+      values[i] = outValue;
+      if (++resolved === len && !called) {
+        called = true;
+        handlers.resolve(promise, values);
+      }
+    }
+  }
+}
+
+Promise.race = race;
+function race(iterable) {
+  var self = this;
+  if (Object.prototype.toString.call(iterable) !== '[object Array]') {
+    return this.reject(new TypeError('must be an array'));
+  }
+
+  var len = iterable.length;
+  var called = false;
+  if (!len) {
+    return this.resolve([]);
+  }
+
+  var i = -1;
+  var promise = new this(INTERNAL);
+
+  while (++i < len) {
+    resolver(iterable[i]);
+  }
+  return promise;
+  function resolver(value) {
+    self.resolve(value).then(function (response) {
+      if (!called) {
+        called = true;
+        handlers.resolve(promise, response);
+      }
+    }, function (error) {
+      if (!called) {
+        called = true;
+        handlers.reject(promise, error);
+      }
+    });
+  }
+}
+
+},{"immediate":7}],47:[function(require,module,exports){
+// Top level file is just a mixin of submodules & constants
+'use strict';
+
+var assign    = require('./lib/utils/common').assign;
+
+var deflate   = require('./lib/deflate');
+var inflate   = require('./lib/inflate');
+var constants = require('./lib/zlib/constants');
+
+var pako = {};
+
+assign(pako, deflate, inflate, constants);
+
+module.exports = pako;
+
+},{"./lib/deflate":48,"./lib/inflate":49,"./lib/utils/common":50,"./lib/zlib/constants":53}],48:[function(require,module,exports){
+'use strict';
+
+
+var zlib_deflate = require('./zlib/deflate');
+var utils        = require('./utils/common');
+var strings      = require('./utils/strings');
+var msg          = require('./zlib/messages');
+var ZStream      = require('./zlib/zstream');
+
+var toString = Object.prototype.toString;
+
+/* Public constants ==========================================================*/
+/* ===========================================================================*/
+
+var Z_NO_FLUSH      = 0;
+var Z_FINISH        = 4;
+
+var Z_OK            = 0;
+var Z_STREAM_END    = 1;
+var Z_SYNC_FLUSH    = 2;
+
+var Z_DEFAULT_COMPRESSION = -1;
+
+var Z_DEFAULT_STRATEGY    = 0;
+
+var Z_DEFLATED  = 8;
+
+/* ===========================================================================*/
+
+
+/**
+ * class Deflate
+ *
+ * Generic JS-style wrapper for zlib calls. If you don't need
+ * streaming behaviour - use more simple functions: [[deflate]],
+ * [[deflateRaw]] and [[gzip]].
+ **/
+
+/* internal
+ * Deflate.chunks -> Array
+ *
+ * Chunks of output data, if [[Deflate#onData]] not overridden.
+ **/
+
+/**
+ * Deflate.result -> Uint8Array|Array
+ *
+ * Compressed result, generated by default [[Deflate#onData]]
+ * and [[Deflate#onEnd]] handlers. Filled after you push last chunk
+ * (call [[Deflate#push]] with `Z_FINISH` / `true` param)  or if you
+ * push a chunk with explicit flush (call [[Deflate#push]] with
+ * `Z_SYNC_FLUSH` param).
+ **/
+
+/**
+ * Deflate.err -> Number
+ *
+ * Error code after deflate finished. 0 (Z_OK) on success.
+ * You will not need it in real life, because deflate errors
+ * are possible only on wrong options or bad `onData` / `onEnd`
+ * custom handlers.
+ **/
+
+/**
+ * Deflate.msg -> String
+ *
+ * Error message, if [[Deflate.err]] != 0
+ **/
+
+
+/**
+ * new Deflate(options)
+ * - options (Object): zlib deflate options.
+ *
+ * Creates new deflator instance with specified params. Throws exception
+ * on bad params. Supported options:
+ *
+ * - `level`
+ * - `windowBits`
+ * - `memLevel`
+ * - `strategy`
+ * - `dictionary`
+ *
+ * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
+ * for more information on these.
+ *
+ * Additional options, for internal needs:
+ *
+ * - `chunkSize` - size of generated data chunks (16K by default)
+ * - `raw` (Boolean) - do raw deflate
+ * - `gzip` (Boolean) - create gzip wrapper
+ * - `to` (String) - if equal to 'string', then result will be "binary string"
+ *    (each char code [0..255])
+ * - `header` (Object) - custom header for gzip
+ *   - `text` (Boolean) - true if compressed data believed to be text
+ *   - `time` (Number) - modification time, unix timestamp
+ *   - `os` (Number) - operation system code
+ *   - `extra` (Array) - array of bytes with extra data (max 65536)
+ *   - `name` (String) - file name (binary string)
+ *   - `comment` (String) - comment (binary string)
+ *   - `hcrc` (Boolean) - true if header crc should be added
+ *
+ * ##### Example:
+ *
+ * ```javascript
+ * var pako = require('pako')
+ *   , chunk1 = Uint8Array([1,2,3,4,5,6,7,8,9])
+ *   , chunk2 = Uint8Array([10,11,12,13,14,15,16,17,18,19]);
+ *
+ * var deflate = new pako.Deflate({ level: 3});
+ *
+ * deflate.push(chunk1, false);
+ * deflate.push(chunk2, true);  // true -> last chunk
+ *
+ * if (deflate.err) { throw new Error(deflate.err); }
+ *
+ * console.log(deflate.result);
+ * ```
+ **/
+function Deflate(options) {
+  if (!(this instanceof Deflate)) return new Deflate(options);
+
+  this.options = utils.assign({
+    level: Z_DEFAULT_COMPRESSION,
+    method: Z_DEFLATED,
+    chunkSize: 16384,
+    windowBits: 15,
+    memLevel: 8,
+    strategy: Z_DEFAULT_STRATEGY,
+    to: ''
+  }, options || {});
+
+  var opt = this.options;
+
+  if (opt.raw && (opt.windowBits > 0)) {
+    opt.windowBits = -opt.windowBits;
+  }
+
+  else if (opt.gzip && (opt.windowBits > 0) && (opt.windowBits < 16)) {
+    opt.windowBits += 16;
+  }
+
+  this.err    = 0;      // error code, if happens (0 = Z_OK)
+  this.msg    = '';     // error message
+  this.ended  = false;  // used to avoid multiple onEnd() calls
+  this.chunks = [];     // chunks of compressed data
+
+  this.strm = new ZStream();
+  this.strm.avail_out = 0;
+
+  var status = zlib_deflate.deflateInit2(
+    this.strm,
+    opt.level,
+    opt.method,
+    opt.windowBits,
+    opt.memLevel,
+    opt.strategy
+  );
+
+  if (status !== Z_OK) {
+    throw new Error(msg[status]);
+  }
+
+  if (opt.header) {
+    zlib_deflate.deflateSetHeader(this.strm, opt.header);
+  }
+
+  if (opt.dictionary) {
+    var dict;
+    // Convert data if needed
+    if (typeof opt.dictionary === 'string') {
+      // If we need to compress text, change encoding to utf8.
+      dict = strings.string2buf(opt.dictionary);
+    } else if (toString.call(opt.dictionary) === '[object ArrayBuffer]') {
+      dict = new Uint8Array(opt.dictionary);
+    } else {
+      dict = opt.dictionary;
+    }
+
+    status = zlib_deflate.deflateSetDictionary(this.strm, dict);
+
+    if (status !== Z_OK) {
+      throw new Error(msg[status]);
+    }
+
+    this._dict_set = true;
+  }
+}
+
+/**
+ * Deflate#push(data[, mode]) -> Boolean
+ * - data (Uint8Array|Array|ArrayBuffer|String): input data. Strings will be
+ *   converted to utf8 byte sequence.
+ * - mode (Number|Boolean): 0..6 for corresponding Z_NO_FLUSH..Z_TREE modes.
+ *   See constants. Skipped or `false` means Z_NO_FLUSH, `true` means Z_FINISH.
+ *
+ * Sends input data to deflate pipe, generating [[Deflate#onData]] calls with
+ * new compressed chunks. Returns `true` on success. The last data block must have
+ * mode Z_FINISH (or `true`). That will flush internal pending buffers and call
+ * [[Deflate#onEnd]]. For interim explicit flushes (without ending the stream) you
+ * can use mode Z_SYNC_FLUSH, keeping the compression context.
+ *
+ * On fail call [[Deflate#onEnd]] with error code and return false.
+ *
+ * We strongly recommend to use `Uint8Array` on input for best speed (output
+ * array format is detected automatically). Also, don't skip last param and always
+ * use the same type in your code (boolean or number). That will improve JS speed.
+ *
+ * For regular `Array`-s make sure all elements are [0..255].
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * push(chunk, false); // push one of data chunks
+ * ...
+ * push(chunk, true);  // push last chunk
+ * ```
+ **/
+Deflate.prototype.push = function (data, mode) {
+  var strm = this.strm;
+  var chunkSize = this.options.chunkSize;
+  var status, _mode;
+
+  if (this.ended) { return false; }
+
+  _mode = (mode === ~~mode) ? mode : ((mode === true) ? Z_FINISH : Z_NO_FLUSH);
+
+  // Convert data if needed
+  if (typeof data === 'string') {
+    // If we need to compress text, change encoding to utf8.
+    strm.input = strings.string2buf(data);
+  } else if (toString.call(data) === '[object ArrayBuffer]') {
+    strm.input = new Uint8Array(data);
+  } else {
+    strm.input = data;
+  }
+
+  strm.next_in = 0;
+  strm.avail_in = strm.input.length;
+
+  do {
+    if (strm.avail_out === 0) {
+      strm.output = new utils.Buf8(chunkSize);
+      strm.next_out = 0;
+      strm.avail_out = chunkSize;
+    }
+    status = zlib_deflate.deflate(strm, _mode);    /* no bad return value */
+
+    if (status !== Z_STREAM_END && status !== Z_OK) {
+      this.onEnd(status);
+      this.ended = true;
+      return false;
+    }
+    if (strm.avail_out === 0 || (strm.avail_in === 0 && (_mode === Z_FINISH || _mode === Z_SYNC_FLUSH))) {
+      if (this.options.to === 'string') {
+        this.onData(strings.buf2binstring(utils.shrinkBuf(strm.output, strm.next_out)));
+      } else {
+        this.onData(utils.shrinkBuf(strm.output, strm.next_out));
+      }
+    }
+  } while ((strm.avail_in > 0 || strm.avail_out === 0) && status !== Z_STREAM_END);
+
+  // Finalize on the last chunk.
+  if (_mode === Z_FINISH) {
+    status = zlib_deflate.deflateEnd(this.strm);
+    this.onEnd(status);
+    this.ended = true;
+    return status === Z_OK;
+  }
+
+  // callback interim results if Z_SYNC_FLUSH.
+  if (_mode === Z_SYNC_FLUSH) {
+    this.onEnd(Z_OK);
+    strm.avail_out = 0;
+    return true;
+  }
+
+  return true;
+};
+
+
+/**
+ * Deflate#onData(chunk) -> Void
+ * - chunk (Uint8Array|Array|String): output data. Type of array depends
+ *   on js engine support. When string output requested, each chunk
+ *   will be string.
+ *
+ * By default, stores data blocks in `chunks[]` property and glue
+ * those in `onEnd`. Override this handler, if you need another behaviour.
+ **/
+Deflate.prototype.onData = function (chunk) {
+  this.chunks.push(chunk);
+};
+
+
+/**
+ * Deflate#onEnd(status) -> Void
+ * - status (Number): deflate status. 0 (Z_OK) on success,
+ *   other if not.
+ *
+ * Called once after you tell deflate that the input stream is
+ * complete (Z_FINISH) or should be flushed (Z_SYNC_FLUSH)
+ * or if an error happened. By default - join collected chunks,
+ * free memory and fill `results` / `err` properties.
+ **/
+Deflate.prototype.onEnd = function (status) {
+  // On success - join
+  if (status === Z_OK) {
+    if (this.options.to === 'string') {
+      this.result = this.chunks.join('');
+    } else {
+      this.result = utils.flattenChunks(this.chunks);
+    }
+  }
+  this.chunks = [];
+  this.err = status;
+  this.msg = this.strm.msg;
+};
+
+
+/**
+ * deflate(data[, options]) -> Uint8Array|Array|String
+ * - data (Uint8Array|Array|String): input data to compress.
+ * - options (Object): zlib deflate options.
+ *
+ * Compress `data` with deflate algorithm and `options`.
+ *
+ * Supported options are:
+ *
+ * - level
+ * - windowBits
+ * - memLevel
+ * - strategy
+ * - dictionary
+ *
+ * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
+ * for more information on these.
+ *
+ * Sugar (options):
+ *
+ * - `raw` (Boolean) - say that we work with raw stream, if you don't wish to specify
+ *   negative windowBits implicitly.
+ * - `to` (String) - if equal to 'string', then result will be "binary string"
+ *    (each char code [0..255])
+ *
+ * ##### Example:
+ *
+ * ```javascript
+ * var pako = require('pako')
+ *   , data = Uint8Array([1,2,3,4,5,6,7,8,9]);
+ *
+ * console.log(pako.deflate(data));
+ * ```
+ **/
+function deflate(input, options) {
+  var deflator = new Deflate(options);
+
+  deflator.push(input, true);
+
+  // That will never happens, if you don't cheat with options :)
+  if (deflator.err) { throw deflator.msg || msg[deflator.err]; }
+
+  return deflator.result;
+}
+
+
+/**
+ * deflateRaw(data[, options]) -> Uint8Array|Array|String
+ * - data (Uint8Array|Array|String): input data to compress.
+ * - options (Object): zlib deflate options.
+ *
+ * The same as [[deflate]], but creates raw data, without wrapper
+ * (header and adler32 crc).
+ **/
+function deflateRaw(input, options) {
+  options = options || {};
+  options.raw = true;
+  return deflate(input, options);
+}
+
+
+/**
+ * gzip(data[, options]) -> Uint8Array|Array|String
+ * - data (Uint8Array|Array|String): input data to compress.
+ * - options (Object): zlib deflate options.
+ *
+ * The same as [[deflate]], but create gzip wrapper instead of
+ * deflate one.
+ **/
+function gzip(input, options) {
+  options = options || {};
+  options.gzip = true;
+  return deflate(input, options);
+}
+
+
+exports.Deflate = Deflate;
+exports.deflate = deflate;
+exports.deflateRaw = deflateRaw;
+exports.gzip = gzip;
+
+},{"./utils/common":50,"./utils/strings":51,"./zlib/deflate":55,"./zlib/messages":60,"./zlib/zstream":62}],49:[function(require,module,exports){
+'use strict';
+
+
+var zlib_inflate = require('./zlib/inflate');
+var utils        = require('./utils/common');
+var strings      = require('./utils/strings');
+var c            = require('./zlib/constants');
+var msg          = require('./zlib/messages');
+var ZStream      = require('./zlib/zstream');
+var GZheader     = require('./zlib/gzheader');
+
+var toString = Object.prototype.toString;
+
+/**
+ * class Inflate
+ *
+ * Generic JS-style wrapper for zlib calls. If you don't need
+ * streaming behaviour - use more simple functions: [[inflate]]
+ * and [[inflateRaw]].
+ **/
+
+/* internal
+ * inflate.chunks -> Array
+ *
+ * Chunks of output data, if [[Inflate#onData]] not overridden.
+ **/
+
+/**
+ * Inflate.result -> Uint8Array|Array|String
+ *
+ * Uncompressed result, generated by default [[Inflate#onData]]
+ * and [[Inflate#onEnd]] handlers. Filled after you push last chunk
+ * (call [[Inflate#push]] with `Z_FINISH` / `true` param) or if you
+ * push a chunk with explicit flush (call [[Inflate#push]] with
+ * `Z_SYNC_FLUSH` param).
+ **/
+
+/**
+ * Inflate.err -> Number
+ *
+ * Error code after inflate finished. 0 (Z_OK) on success.
+ * Should be checked if broken data possible.
+ **/
+
+/**
+ * Inflate.msg -> String
+ *
+ * Error message, if [[Inflate.err]] != 0
+ **/
+
+
+/**
+ * new Inflate(options)
+ * - options (Object): zlib inflate options.
+ *
+ * Creates new inflator instance with specified params. Throws exception
+ * on bad params. Supported options:
+ *
+ * - `windowBits`
+ * - `dictionary`
+ *
+ * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
+ * for more information on these.
+ *
+ * Additional options, for internal needs:
+ *
+ * - `chunkSize` - size of generated data chunks (16K by default)
+ * - `raw` (Boolean) - do raw inflate
+ * - `to` (String) - if equal to 'string', then result will be converted
+ *   from utf8 to utf16 (javascript) string. When string output requested,
+ *   chunk length can differ from `chunkSize`, depending on content.
+ *
+ * By default, when no options set, autodetect deflate/gzip data format via
+ * wrapper header.
+ *
+ * ##### Example:
+ *
+ * ```javascript
+ * var pako = require('pako')
+ *   , chunk1 = Uint8Array([1,2,3,4,5,6,7,8,9])
+ *   , chunk2 = Uint8Array([10,11,12,13,14,15,16,17,18,19]);
+ *
+ * var inflate = new pako.Inflate({ level: 3});
+ *
+ * inflate.push(chunk1, false);
+ * inflate.push(chunk2, true);  // true -> last chunk
+ *
+ * if (inflate.err) { throw new Error(inflate.err); }
+ *
+ * console.log(inflate.result);
+ * ```
+ **/
+function Inflate(options) {
+  if (!(this instanceof Inflate)) return new Inflate(options);
+
+  this.options = utils.assign({
+    chunkSize: 16384,
+    windowBits: 0,
+    to: ''
+  }, options || {});
+
+  var opt = this.options;
+
+  // Force window size for `raw` data, if not set directly,
+  // because we have no header for autodetect.
+  if (opt.raw && (opt.windowBits >= 0) && (opt.windowBits < 16)) {
+    opt.windowBits = -opt.windowBits;
+    if (opt.windowBits === 0) { opt.windowBits = -15; }
+  }
+
+  // If `windowBits` not defined (and mode not raw) - set autodetect flag for gzip/deflate
+  if ((opt.windowBits >= 0) && (opt.windowBits < 16) &&
+      !(options && options.windowBits)) {
+    opt.windowBits += 32;
+  }
+
+  // Gzip header has no info about windows size, we can do autodetect only
+  // for deflate. So, if window size not set, force it to max when gzip possible
+  if ((opt.windowBits > 15) && (opt.windowBits < 48)) {
+    // bit 3 (16) -> gzipped data
+    // bit 4 (32) -> autodetect gzip/deflate
+    if ((opt.windowBits & 15) === 0) {
+      opt.windowBits |= 15;
+    }
+  }
+
+  this.err    = 0;      // error code, if happens (0 = Z_OK)
+  this.msg    = '';     // error message
+  this.ended  = false;  // used to avoid multiple onEnd() calls
+  this.chunks = [];     // chunks of compressed data
+
+  this.strm   = new ZStream();
+  this.strm.avail_out = 0;
+
+  var status  = zlib_inflate.inflateInit2(
+    this.strm,
+    opt.windowBits
+  );
+
+  if (status !== c.Z_OK) {
+    throw new Error(msg[status]);
+  }
+
+  this.header = new GZheader();
+
+  zlib_inflate.inflateGetHeader(this.strm, this.header);
+
+  // Setup dictionary
+  if (opt.dictionary) {
+    // Convert data if needed
+    if (typeof opt.dictionary === 'string') {
+      opt.dictionary = strings.string2buf(opt.dictionary);
+    } else if (toString.call(opt.dictionary) === '[object ArrayBuffer]') {
+      opt.dictionary = new Uint8Array(opt.dictionary);
+    }
+    if (opt.raw) { //In raw mode we need to set the dictionary early
+      status = zlib_inflate.inflateSetDictionary(this.strm, opt.dictionary);
+      if (status !== c.Z_OK) {
+        throw new Error(msg[status]);
+      }
+    }
+  }
+}
+
+/**
+ * Inflate#push(data[, mode]) -> Boolean
+ * - data (Uint8Array|Array|ArrayBuffer|String): input data
+ * - mode (Number|Boolean): 0..6 for corresponding Z_NO_FLUSH..Z_TREE modes.
+ *   See constants. Skipped or `false` means Z_NO_FLUSH, `true` means Z_FINISH.
+ *
+ * Sends input data to inflate pipe, generating [[Inflate#onData]] calls with
+ * new output chunks. Returns `true` on success. The last data block must have
+ * mode Z_FINISH (or `true`). That will flush internal pending buffers and call
+ * [[Inflate#onEnd]]. For interim explicit flushes (without ending the stream) you
+ * can use mode Z_SYNC_FLUSH, keeping the decompression context.
+ *
+ * On fail call [[Inflate#onEnd]] with error code and return false.
+ *
+ * We strongly recommend to use `Uint8Array` on input for best speed (output
+ * format is detected automatically). Also, don't skip last param and always
+ * use the same type in your code (boolean or number). That will improve JS speed.
+ *
+ * For regular `Array`-s make sure all elements are [0..255].
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * push(chunk, false); // push one of data chunks
+ * ...
+ * push(chunk, true);  // push last chunk
+ * ```
+ **/
+Inflate.prototype.push = function (data, mode) {
+  var strm = this.strm;
+  var chunkSize = this.options.chunkSize;
+  var dictionary = this.options.dictionary;
+  var status, _mode;
+  var next_out_utf8, tail, utf8str;
+
+  // Flag to properly process Z_BUF_ERROR on testing inflate call
+  // when we check that all output data was flushed.
+  var allowBufError = false;
+
+  if (this.ended) { return false; }
+  _mode = (mode === ~~mode) ? mode : ((mode === true) ? c.Z_FINISH : c.Z_NO_FLUSH);
+
+  // Convert data if needed
+  if (typeof data === 'string') {
+    // Only binary strings can be decompressed on practice
+    strm.input = strings.binstring2buf(data);
+  } else if (toString.call(data) === '[object ArrayBuffer]') {
+    strm.input = new Uint8Array(data);
+  } else {
+    strm.input = data;
+  }
+
+  strm.next_in = 0;
+  strm.avail_in = strm.input.length;
+
+  do {
+    if (strm.avail_out === 0) {
+      strm.output = new utils.Buf8(chunkSize);
+      strm.next_out = 0;
+      strm.avail_out = chunkSize;
+    }
+
+    status = zlib_inflate.inflate(strm, c.Z_NO_FLUSH);    /* no bad return value */
+
+    if (status === c.Z_NEED_DICT && dictionary) {
+      status = zlib_inflate.inflateSetDictionary(this.strm, dictionary);
+    }
+
+    if (status === c.Z_BUF_ERROR && allowBufError === true) {
+      status = c.Z_OK;
+      allowBufError = false;
+    }
+
+    if (status !== c.Z_STREAM_END && status !== c.Z_OK) {
+      this.onEnd(status);
+      this.ended = true;
+      return false;
+    }
+
+    if (strm.next_out) {
+      if (strm.avail_out === 0 || status === c.Z_STREAM_END || (strm.avail_in === 0 && (_mode === c.Z_FINISH || _mode === c.Z_SYNC_FLUSH))) {
+
+        if (this.options.to === 'string') {
+
+          next_out_utf8 = strings.utf8border(strm.output, strm.next_out);
+
+          tail = strm.next_out - next_out_utf8;
+          utf8str = strings.buf2string(strm.output, next_out_utf8);
+
+          // move tail
+          strm.next_out = tail;
+          strm.avail_out = chunkSize - tail;
+          if (tail) { utils.arraySet(strm.output, strm.output, next_out_utf8, tail, 0); }
+
+          this.onData(utf8str);
+
+        } else {
+          this.onData(utils.shrinkBuf(strm.output, strm.next_out));
+        }
+      }
+    }
+
+    // When no more input data, we should check that internal inflate buffers
+    // are flushed. The only way to do it when avail_out = 0 - run one more
+    // inflate pass. But if output data not exists, inflate return Z_BUF_ERROR.
+    // Here we set flag to process this error properly.
+    //
+    // NOTE. Deflate does not return error in this case and does not needs such
+    // logic.
+    if (strm.avail_in === 0 && strm.avail_out === 0) {
+      allowBufError = true;
+    }
+
+  } while ((strm.avail_in > 0 || strm.avail_out === 0) && status !== c.Z_STREAM_END);
+
+  if (status === c.Z_STREAM_END) {
+    _mode = c.Z_FINISH;
+  }
+
+  // Finalize on the last chunk.
+  if (_mode === c.Z_FINISH) {
+    status = zlib_inflate.inflateEnd(this.strm);
+    this.onEnd(status);
+    this.ended = true;
+    return status === c.Z_OK;
+  }
+
+  // callback interim results if Z_SYNC_FLUSH.
+  if (_mode === c.Z_SYNC_FLUSH) {
+    this.onEnd(c.Z_OK);
+    strm.avail_out = 0;
+    return true;
+  }
+
+  return true;
+};
+
+
+/**
+ * Inflate#onData(chunk) -> Void
+ * - chunk (Uint8Array|Array|String): output data. Type of array depends
+ *   on js engine support. When string output requested, each chunk
+ *   will be string.
+ *
+ * By default, stores data blocks in `chunks[]` property and glue
+ * those in `onEnd`. Override this handler, if you need another behaviour.
+ **/
+Inflate.prototype.onData = function (chunk) {
+  this.chunks.push(chunk);
+};
+
+
+/**
+ * Inflate#onEnd(status) -> Void
+ * - status (Number): inflate status. 0 (Z_OK) on success,
+ *   other if not.
+ *
+ * Called either after you tell inflate that the input stream is
+ * complete (Z_FINISH) or should be flushed (Z_SYNC_FLUSH)
+ * or if an error happened. By default - join collected chunks,
+ * free memory and fill `results` / `err` properties.
+ **/
+Inflate.prototype.onEnd = function (status) {
+  // On success - join
+  if (status === c.Z_OK) {
+    if (this.options.to === 'string') {
+      // Glue & convert here, until we teach pako to send
+      // utf8 aligned strings to onData
+      this.result = this.chunks.join('');
+    } else {
+      this.result = utils.flattenChunks(this.chunks);
+    }
+  }
+  this.chunks = [];
+  this.err = status;
+  this.msg = this.strm.msg;
+};
+
+
+/**
+ * inflate(data[, options]) -> Uint8Array|Array|String
+ * - data (Uint8Array|Array|String): input data to decompress.
+ * - options (Object): zlib inflate options.
+ *
+ * Decompress `data` with inflate/ungzip and `options`. Autodetect
+ * format via wrapper header by default. That's why we don't provide
+ * separate `ungzip` method.
+ *
+ * Supported options are:
+ *
+ * - windowBits
+ *
+ * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
+ * for more information.
+ *
+ * Sugar (options):
+ *
+ * - `raw` (Boolean) - say that we work with raw stream, if you don't wish to specify
+ *   negative windowBits implicitly.
+ * - `to` (String) - if equal to 'string', then result will be converted
+ *   from utf8 to utf16 (javascript) string. When string output requested,
+ *   chunk length can differ from `chunkSize`, depending on content.
+ *
+ *
+ * ##### Example:
+ *
+ * ```javascript
+ * var pako = require('pako')
+ *   , input = pako.deflate([1,2,3,4,5,6,7,8,9])
+ *   , output;
+ *
+ * try {
+ *   output = pako.inflate(input);
+ * } catch (err)
+ *   console.log(err);
+ * }
+ * ```
+ **/
+function inflate(input, options) {
+  var inflator = new Inflate(options);
+
+  inflator.push(input, true);
+
+  // That will never happens, if you don't cheat with options :)
+  if (inflator.err) { throw inflator.msg || msg[inflator.err]; }
+
+  return inflator.result;
+}
+
+
+/**
+ * inflateRaw(data[, options]) -> Uint8Array|Array|String
+ * - data (Uint8Array|Array|String): input data to decompress.
+ * - options (Object): zlib inflate options.
+ *
+ * The same as [[inflate]], but creates raw data, without wrapper
+ * (header and adler32 crc).
+ **/
+function inflateRaw(input, options) {
+  options = options || {};
+  options.raw = true;
+  return inflate(input, options);
+}
+
+
+/**
+ * ungzip(data[, options]) -> Uint8Array|Array|String
+ * - data (Uint8Array|Array|String): input data to decompress.
+ * - options (Object): zlib inflate options.
+ *
+ * Just shortcut to [[inflate]], because it autodetects format
+ * by header.content. Done for convenience.
+ **/
+
+
+exports.Inflate = Inflate;
+exports.inflate = inflate;
+exports.inflateRaw = inflateRaw;
+exports.ungzip  = inflate;
+
+},{"./utils/common":50,"./utils/strings":51,"./zlib/constants":53,"./zlib/gzheader":56,"./zlib/inflate":58,"./zlib/messages":60,"./zlib/zstream":62}],50:[function(require,module,exports){
+'use strict';
+
+
+var TYPED_OK =  (typeof Uint8Array !== 'undefined') &&
+                (typeof Uint16Array !== 'undefined') &&
+                (typeof Int32Array !== 'undefined');
+
+function _has(obj, key) {
+  return Object.prototype.hasOwnProperty.call(obj, key);
+}
+
+exports.assign = function (obj /*from1, from2, from3, ...*/) {
+  var sources = Array.prototype.slice.call(arguments, 1);
+  while (sources.length) {
+    var source = sources.shift();
+    if (!source) { continue; }
+
+    if (typeof source !== 'object') {
+      throw new TypeError(source + 'must be non-object');
+    }
+
+    for (var p in source) {
+      if (_has(source, p)) {
+        obj[p] = source[p];
+      }
+    }
+  }
+
+  return obj;
+};
+
+
+// reduce buffer size, avoiding mem copy
+exports.shrinkBuf = function (buf, size) {
+  if (buf.length === size) { return buf; }
+  if (buf.subarray) { return buf.subarray(0, size); }
+  buf.length = size;
+  return buf;
+};
+
+
+var fnTyped = {
+  arraySet: function (dest, src, src_offs, len, dest_offs) {
+    if (src.subarray && dest.subarray) {
+      dest.set(src.subarray(src_offs, src_offs + len), dest_offs);
+      return;
+    }
+    // Fallback to ordinary array
+    for (var i = 0; i < len; i++) {
+      dest[dest_offs + i] = src[src_offs + i];
+    }
+  },
+  // Join array of chunks to single array.
+  flattenChunks: function (chunks) {
+    var i, l, len, pos, chunk, result;
+
+    // calculate data length
+    len = 0;
+    for (i = 0, l = chunks.length; i < l; i++) {
+      len += chunks[i].length;
+    }
+
+    // join chunks
+    result = new Uint8Array(len);
+    pos = 0;
+    for (i = 0, l = chunks.length; i < l; i++) {
+      chunk = chunks[i];
+      result.set(chunk, pos);
+      pos += chunk.length;
+    }
+
+    return result;
+  }
+};
+
+var fnUntyped = {
+  arraySet: function (dest, src, src_offs, len, dest_offs) {
+    for (var i = 0; i < len; i++) {
+      dest[dest_offs + i] = src[src_offs + i];
+    }
+  },
+  // Join array of chunks to single array.
+  flattenChunks: function (chunks) {
+    return [].concat.apply([], chunks);
+  }
+};
+
+
+// Enable/Disable typed arrays use, for testing
+//
+exports.setTyped = function (on) {
+  if (on) {
+    exports.Buf8  = Uint8Array;
+    exports.Buf16 = Uint16Array;
+    exports.Buf32 = Int32Array;
+    exports.assign(exports, fnTyped);
+  } else {
+    exports.Buf8  = Array;
+    exports.Buf16 = Array;
+    exports.Buf32 = Array;
+    exports.assign(exports, fnUntyped);
+  }
+};
+
+exports.setTyped(TYPED_OK);
+
+},{}],51:[function(require,module,exports){
+// String encode/decode helpers
+'use strict';
+
+
+var utils = require('./common');
+
+
+// Quick check if we can use fast array to bin string conversion
+//
+// - apply(Array) can fail on Android 2.2
+// - apply(Uint8Array) can fail on iOS 5.1 Safari
+//
+var STR_APPLY_OK = true;
+var STR_APPLY_UIA_OK = true;
+
+try { String.fromCharCode.apply(null, [ 0 ]); } catch (__) { STR_APPLY_OK = false; }
+try { String.fromCharCode.apply(null, new Uint8Array(1)); } catch (__) { STR_APPLY_UIA_OK = false; }
+
+
+// Table with utf8 lengths (calculated by first byte of sequence)
+// Note, that 5 & 6-byte values and some 4-byte values can not be represented in JS,
+// because max possible codepoint is 0x10ffff
+var _utf8len = new utils.Buf8(256);
+for (var q = 0; q < 256; q++) {
+  _utf8len[q] = (q >= 252 ? 6 : q >= 248 ? 5 : q >= 240 ? 4 : q >= 224 ? 3 : q >= 192 ? 2 : 1);
+}
+_utf8len[254] = _utf8len[254] = 1; // Invalid sequence start
+
+
+// convert string to array (typed, when possible)
+exports.string2buf = function (str) {
+  var buf, c, c2, m_pos, i, str_len = str.length, buf_len = 0;
+
+  // count binary size
+  for (m_pos = 0; m_pos < str_len; m_pos++) {
+    c = str.charCodeAt(m_pos);
+    if ((c & 0xfc00) === 0xd800 && (m_pos + 1 < str_len)) {
+      c2 = str.charCodeAt(m_pos + 1);
+      if ((c2 & 0xfc00) === 0xdc00) {
+        c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
+        m_pos++;
+      }
+    }
+    buf_len += c < 0x80 ? 1 : c < 0x800 ? 2 : c < 0x10000 ? 3 : 4;
+  }
+
+  // allocate buffer
+  buf = new utils.Buf8(buf_len);
+
+  // convert
+  for (i = 0, m_pos = 0; i < buf_len; m_pos++) {
+    c = str.charCodeAt(m_pos);
+    if ((c & 0xfc00) === 0xd800 && (m_pos + 1 < str_len)) {
+      c2 = str.charCodeAt(m_pos + 1);
+      if ((c2 & 0xfc00) === 0xdc00) {
+        c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
+        m_pos++;
+      }
+    }
+    if (c < 0x80) {
+      /* one byte */
+      buf[i++] = c;
+    } else if (c < 0x800) {
+      /* two bytes */
+      buf[i++] = 0xC0 | (c >>> 6);
+      buf[i++] = 0x80 | (c & 0x3f);
+    } else if (c < 0x10000) {
+      /* three bytes */
+      buf[i++] = 0xE0 | (c >>> 12);
+      buf[i++] = 0x80 | (c >>> 6 & 0x3f);
+      buf[i++] = 0x80 | (c & 0x3f);
+    } else {
+      /* four bytes */
+      buf[i++] = 0xf0 | (c >>> 18);
+      buf[i++] = 0x80 | (c >>> 12 & 0x3f);
+      buf[i++] = 0x80 | (c >>> 6 & 0x3f);
+      buf[i++] = 0x80 | (c & 0x3f);
+    }
+  }
+
+  return buf;
+};
+
+// Helper (used in 2 places)
+function buf2binstring(buf, len) {
+  // On Chrome, the arguments in a function call that are allowed is `65534`.
+  // If the length of the buffer is smaller than that, we can use this optimization,
+  // otherwise we will take a slower path.
+  if (len < 65534) {
+    if ((buf.subarray && STR_APPLY_UIA_OK) || (!buf.subarray && STR_APPLY_OK)) {
+      return String.fromCharCode.apply(null, utils.shrinkBuf(buf, len));
+    }
+  }
+
+  var result = '';
+  for (var i = 0; i < len; i++) {
+    result += String.fromCharCode(buf[i]);
+  }
+  return result;
+}
+
+
+// Convert byte array to binary string
+exports.buf2binstring = function (buf) {
+  return buf2binstring(buf, buf.length);
+};
+
+
+// Convert binary string (typed, when possible)
+exports.binstring2buf = function (str) {
+  var buf = new utils.Buf8(str.length);
+  for (var i = 0, len = buf.length; i < len; i++) {
+    buf[i] = str.charCodeAt(i);
+  }
+  return buf;
+};
+
+
+// convert array to string
+exports.buf2string = function (buf, max) {
+  var i, out, c, c_len;
+  var len = max || buf.length;
+
+  // Reserve max possible length (2 words per char)
+  // NB: by unknown reasons, Array is significantly faster for
+  //     String.fromCharCode.apply than Uint16Array.
+  var utf16buf = new Array(len * 2);
+
+  for (out = 0, i = 0; i < len;) {
+    c = buf[i++];
+    // quick process ascii
+    if (c < 0x80) { utf16buf[out++] = c; continue; }
+
+    c_len = _utf8len[c];
+    // skip 5 & 6 byte codes
+    if (c_len > 4) { utf16buf[out++] = 0xfffd; i += c_len - 1; continue; }
+
+    // apply mask on first byte
+    c &= c_len === 2 ? 0x1f : c_len === 3 ? 0x0f : 0x07;
+    // join the rest
+    while (c_len > 1 && i < len) {
+      c = (c << 6) | (buf[i++] & 0x3f);
+      c_len--;
+    }
+
+    // terminated by end of string?
+    if (c_len > 1) { utf16buf[out++] = 0xfffd; continue; }
+
+    if (c < 0x10000) {
+      utf16buf[out++] = c;
+    } else {
+      c -= 0x10000;
+      utf16buf[out++] = 0xd800 | ((c >> 10) & 0x3ff);
+      utf16buf[out++] = 0xdc00 | (c & 0x3ff);
+    }
+  }
+
+  return buf2binstring(utf16buf, out);
+};
+
+
+// Calculate max possible position in utf8 buffer,
+// that will not break sequence. If that's not possible
+// - (very small limits) return max size as is.
+//
+// buf[] - utf8 bytes array
+// max   - length limit (mandatory);
+exports.utf8border = function (buf, max) {
+  var pos;
+
+  max = max || buf.length;
+  if (max > buf.length) { max = buf.length; }
+
+  // go back from last position, until start of sequence found
+  pos = max - 1;
+  while (pos >= 0 && (buf[pos] & 0xC0) === 0x80) { pos--; }
+
+  // Very small and broken sequence,
+  // return max, because we should return something anyway.
+  if (pos < 0) { return max; }
+
+  // If we came to start of buffer - that means buffer is too small,
+  // return max too.
+  if (pos === 0) { return max; }
+
+  return (pos + _utf8len[buf[pos]] > max) ? pos : max;
+};
+
+},{"./common":50}],52:[function(require,module,exports){
+'use strict';
+
+// Note: adler32 takes 12% for level 0 and 2% for level 6.
+// It isn't worth it to make additional optimizations as in original.
+// Small size is preferable.
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+function adler32(adler, buf, len, pos) {
+  var s1 = (adler & 0xffff) |0,
+      s2 = ((adler >>> 16) & 0xffff) |0,
+      n = 0;
+
+  while (len !== 0) {
+    // Set limit ~ twice less than 5552, to keep
+    // s2 in 31-bits, because we force signed ints.
+    // in other case %= will fail.
+    n = len > 2000 ? 2000 : len;
+    len -= n;
+
+    do {
+      s1 = (s1 + buf[pos++]) |0;
+      s2 = (s2 + s1) |0;
+    } while (--n);
+
+    s1 %= 65521;
+    s2 %= 65521;
+  }
+
+  return (s1 | (s2 << 16)) |0;
+}
+
+
+module.exports = adler32;
+
+},{}],53:[function(require,module,exports){
+'use strict';
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+module.exports = {
+
+  /* Allowed flush values; see deflate() and inflate() below for details */
+  Z_NO_FLUSH:         0,
+  Z_PARTIAL_FLUSH:    1,
+  Z_SYNC_FLUSH:       2,
+  Z_FULL_FLUSH:       3,
+  Z_FINISH:           4,
+  Z_BLOCK:            5,
+  Z_TREES:            6,
+
+  /* Return codes for the compression/decompression functions. Negative values
+  * are errors, positive values are used for special but normal events.
+  */
+  Z_OK:               0,
+  Z_STREAM_END:       1,
+  Z_NEED_DICT:        2,
+  Z_ERRNO:           -1,
+  Z_STREAM_ERROR:    -2,
+  Z_DATA_ERROR:      -3,
+  //Z_MEM_ERROR:     -4,
+  Z_BUF_ERROR:       -5,
+  //Z_VERSION_ERROR: -6,
+
+  /* compression levels */
+  Z_NO_COMPRESSION:         0,
+  Z_BEST_SPEED:             1,
+  Z_BEST_COMPRESSION:       9,
+  Z_DEFAULT_COMPRESSION:   -1,
+
+
+  Z_FILTERED:               1,
+  Z_HUFFMAN_ONLY:           2,
+  Z_RLE:                    3,
+  Z_FIXED:                  4,
+  Z_DEFAULT_STRATEGY:       0,
+
+  /* Possible values of the data_type field (though see inflate()) */
+  Z_BINARY:                 0,
+  Z_TEXT:                   1,
+  //Z_ASCII:                1, // = Z_TEXT (deprecated)
+  Z_UNKNOWN:                2,
+
+  /* The deflate compression method */
+  Z_DEFLATED:               8
+  //Z_NULL:                 null // Use -1 or null inline, depending on var type
+};
+
+},{}],54:[function(require,module,exports){
+'use strict';
+
+// Note: we can't get significant speed boost here.
+// So write code to minimize size - no pregenerated tables
+// and array tools dependencies.
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+// Use ordinary array, since untyped makes no boost here
+function makeTable() {
+  var c, table = [];
+
+  for (var n = 0; n < 256; n++) {
+    c = n;
+    for (var k = 0; k < 8; k++) {
+      c = ((c & 1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
+    }
+    table[n] = c;
+  }
+
+  return table;
+}
+
+// Create table on load. Just 255 signed longs. Not a problem.
+var crcTable = makeTable();
+
+
+function crc32(crc, buf, len, pos) {
+  var t = crcTable,
+      end = pos + len;
+
+  crc ^= -1;
+
+  for (var i = pos; i < end; i++) {
+    crc = (crc >>> 8) ^ t[(crc ^ buf[i]) & 0xFF];
+  }
+
+  return (crc ^ (-1)); // >>> 0;
+}
+
+
+module.exports = crc32;
+
+},{}],55:[function(require,module,exports){
+'use strict';
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+var utils   = require('../utils/common');
+var trees   = require('./trees');
+var adler32 = require('./adler32');
+var crc32   = require('./crc32');
+var msg     = require('./messages');
+
+/* Public constants ==========================================================*/
+/* ===========================================================================*/
+
+
+/* Allowed flush values; see deflate() and inflate() below for details */
+var Z_NO_FLUSH      = 0;
+var Z_PARTIAL_FLUSH = 1;
+//var Z_SYNC_FLUSH    = 2;
+var Z_FULL_FLUSH    = 3;
+var Z_FINISH        = 4;
+var Z_BLOCK         = 5;
+//var Z_TREES         = 6;
+
+
+/* Return codes for the compression/decompression functions. Negative values
+ * are errors, positive values are used for special but normal events.
+ */
+var Z_OK            = 0;
+var Z_STREAM_END    = 1;
+//var Z_NEED_DICT     = 2;
+//var Z_ERRNO         = -1;
+var Z_STREAM_ERROR  = -2;
+var Z_DATA_ERROR    = -3;
+//var Z_MEM_ERROR     = -4;
+var Z_BUF_ERROR     = -5;
+//var Z_VERSION_ERROR = -6;
+
+
+/* compression levels */
+//var Z_NO_COMPRESSION      = 0;
+//var Z_BEST_SPEED          = 1;
+//var Z_BEST_COMPRESSION    = 9;
+var Z_DEFAULT_COMPRESSION = -1;
+
+
+var Z_FILTERED            = 1;
+var Z_HUFFMAN_ONLY        = 2;
+var Z_RLE                 = 3;
+var Z_FIXED               = 4;
+var Z_DEFAULT_STRATEGY    = 0;
+
+/* Possible values of the data_type field (though see inflate()) */
+//var Z_BINARY              = 0;
+//var Z_TEXT                = 1;
+//var Z_ASCII               = 1; // = Z_TEXT
+var Z_UNKNOWN             = 2;
+
+
+/* The deflate compression method */
+var Z_DEFLATED  = 8;
+
+/*============================================================================*/
+
+
+var MAX_MEM_LEVEL = 9;
+/* Maximum value for memLevel in deflateInit2 */
+var MAX_WBITS = 15;
+/* 32K LZ77 window */
+var DEF_MEM_LEVEL = 8;
+
+
+var LENGTH_CODES  = 29;
+/* number of length codes, not counting the special END_BLOCK code */
+var LITERALS      = 256;
+/* number of literal bytes 0..255 */
+var L_CODES       = LITERALS + 1 + LENGTH_CODES;
+/* number of Literal or Length codes, including the END_BLOCK code */
+var D_CODES       = 30;
+/* number of distance codes */
+var BL_CODES      = 19;
+/* number of codes used to transfer the bit lengths */
+var HEAP_SIZE     = 2 * L_CODES + 1;
+/* maximum heap size */
+var MAX_BITS  = 15;
+/* All codes must not exceed MAX_BITS bits */
+
+var MIN_MATCH = 3;
+var MAX_MATCH = 258;
+var MIN_LOOKAHEAD = (MAX_MATCH + MIN_MATCH + 1);
+
+var PRESET_DICT = 0x20;
+
+var INIT_STATE = 42;
+var EXTRA_STATE = 69;
+var NAME_STATE = 73;
+var COMMENT_STATE = 91;
+var HCRC_STATE = 103;
+var BUSY_STATE = 113;
+var FINISH_STATE = 666;
+
+var BS_NEED_MORE      = 1; /* block not completed, need more input or more output */
+var BS_BLOCK_DONE     = 2; /* block flush performed */
+var BS_FINISH_STARTED = 3; /* finish started, need only more output at next deflate */
+var BS_FINISH_DONE    = 4; /* finish done, accept no more input or output */
+
+var OS_CODE = 0x03; // Unix :) . Don't detect, use this default.
+
+function err(strm, errorCode) {
+  strm.msg = msg[errorCode];
+  return errorCode;
+}
+
+function rank(f) {
+  return ((f) << 1) - ((f) > 4 ? 9 : 0);
+}
+
+function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } }
+
+
+/* =========================================================================
+ * Flush as much pending output as possible. All deflate() output goes
+ * through this function so some applications may wish to modify it
+ * to avoid allocating a large strm->output buffer and copying into it.
+ * (See also read_buf()).
+ */
+function flush_pending(strm) {
+  var s = strm.state;
+
+  //_tr_flush_bits(s);
+  var len = s.pending;
+  if (len > strm.avail_out) {
+    len = strm.avail_out;
+  }
+  if (len === 0) { return; }
+
+  utils.arraySet(strm.output, s.pending_buf, s.pending_out, len, strm.next_out);
+  strm.next_out += len;
+  s.pending_out += len;
+  strm.total_out += len;
+  strm.avail_out -= len;
+  s.pending -= len;
+  if (s.pending === 0) {
+    s.pending_out = 0;
+  }
+}
+
+
+function flush_block_only(s, last) {
+  trees._tr_flush_block(s, (s.block_start >= 0 ? s.block_start : -1), s.strstart - s.block_start, last);
+  s.block_start = s.strstart;
+  flush_pending(s.strm);
+}
+
+
+function put_byte(s, b) {
+  s.pending_buf[s.pending++] = b;
+}
+
+
+/* =========================================================================
+ * Put a short in the pending buffer. The 16-bit value is put in MSB order.
+ * IN assertion: the stream state is correct and there is enough room in
+ * pending_buf.
+ */
+function putShortMSB(s, b) {
+//  put_byte(s, (Byte)(b >> 8));
+//  put_byte(s, (Byte)(b & 0xff));
+  s.pending_buf[s.pending++] = (b >>> 8) & 0xff;
+  s.pending_buf[s.pending++] = b & 0xff;
+}
+
+
+/* ===========================================================================
+ * Read a new buffer from the current input stream, update the adler32
+ * and total number of bytes read.  All deflate() input goes through
+ * this function so some applications may wish to modify it to avoid
+ * allocating a large strm->input buffer and copying from it.
+ * (See also flush_pending()).
+ */
+function read_buf(strm, buf, start, size) {
+  var len = strm.avail_in;
+
+  if (len > size) { len = size; }
+  if (len === 0) { return 0; }
+
+  strm.avail_in -= len;
+
+  // zmemcpy(buf, strm->next_in, len);
+  utils.arraySet(buf, strm.input, strm.next_in, len, start);
+  if (strm.state.wrap === 1) {
+    strm.adler = adler32(strm.adler, buf, len, start);
+  }
+
+  else if (strm.state.wrap === 2) {
+    strm.adler = crc32(strm.adler, buf, len, start);
+  }
+
+  strm.next_in += len;
+  strm.total_in += len;
+
+  return len;
+}
+
+
+/* ===========================================================================
+ * Set match_start to the longest match starting at the given string and
+ * return its length. Matches shorter or equal to prev_length are discarded,
+ * in which case the result is equal to prev_length and match_start is
+ * garbage.
+ * IN assertions: cur_match is the head of the hash chain for the current
+ *   string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+ * OUT assertion: the match length is not greater than s->lookahead.
+ */
+function longest_match(s, cur_match) {
+  var chain_length = s.max_chain_length;      /* max hash chain length */
+  var scan = s.strstart; /* current string */
+  var match;                       /* matched string */
+  var len;                           /* length of current match */
+  var best_len = s.prev_length;              /* best match length so far */
+  var nice_match = s.nice_match;             /* stop if match long enough */
+  var limit = (s.strstart > (s.w_size - MIN_LOOKAHEAD)) ?
+      s.strstart - (s.w_size - MIN_LOOKAHEAD) : 0/*NIL*/;
+
+  var _win = s.window; // shortcut
+
+  var wmask = s.w_mask;
+  var prev  = s.prev;
+
+  /* Stop when cur_match becomes <= limit. To simplify the code,
+   * we prevent matches with the string of window index 0.
+   */
+
+  var strend = s.strstart + MAX_MATCH;
+  var scan_end1  = _win[scan + best_len - 1];
+  var scan_end   = _win[scan + best_len];
+
+  /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
+   * It is easy to get rid of this optimization if necessary.
+   */
+  // Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
+
+  /* Do not waste too much time if we already have a good match: */
+  if (s.prev_length >= s.good_match) {
+    chain_length >>= 2;
+  }
+  /* Do not look for matches beyond the end of the input. This is necessary
+   * to make deflate deterministic.
+   */
+  if (nice_match > s.lookahead) { nice_match = s.lookahead; }
+
+  // Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
+
+  do {
+    // Assert(cur_match < s->strstart, "no future");
+    match = cur_match;
+
+    /* Skip to next match if the match length cannot increase
+     * or if the match length is less than 2.  Note that the checks below
+     * for insufficient lookahead only occur occasionally for performance
+     * reasons.  Therefore uninitialized memory will be accessed, and
+     * conditional jumps will be made that depend on those values.
+     * However the length of the match is limited to the lookahead, so
+     * the output of deflate is not affected by the uninitialized values.
+     */
+
+    if (_win[match + best_len]     !== scan_end  ||
+        _win[match + best_len - 1] !== scan_end1 ||
+        _win[match]                !== _win[scan] ||
+        _win[++match]              !== _win[scan + 1]) {
+      continue;
+    }
+
+    /* The check at best_len-1 can be removed because it will be made
+     * again later. (This heuristic is not always a win.)
+     * It is not necessary to compare scan[2] and match[2] since they
+     * are always equal when the other bytes match, given that
+     * the hash keys are equal and that HASH_BITS >= 8.
+     */
+    scan += 2;
+    match++;
+    // Assert(*scan == *match, "match[2]?");
+
+    /* We check for insufficient lookahead only every 8th comparison;
+     * the 256th check will be made at strstart+258.
+     */
+    do {
+      /*jshint noempty:false*/
+    } while (_win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
+             _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
+             _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
+             _win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
+             scan < strend);
+
+    // Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
+
+    len = MAX_MATCH - (strend - scan);
+    scan = strend - MAX_MATCH;
+
+    if (len > best_len) {
+      s.match_start = cur_match;
+      best_len = len;
+      if (len >= nice_match) {
+        break;
+      }
+      scan_end1  = _win[scan + best_len - 1];
+      scan_end   = _win[scan + best_len];
+    }
+  } while ((cur_match = prev[cur_match & wmask]) > limit && --chain_length !== 0);
+
+  if (best_len <= s.lookahead) {
+    return best_len;
+  }
+  return s.lookahead;
+}
+
+
+/* ===========================================================================
+ * Fill the window when the lookahead becomes insufficient.
+ * Updates strstart and lookahead.
+ *
+ * IN assertion: lookahead < MIN_LOOKAHEAD
+ * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD
+ *    At least one byte has been read, or avail_in == 0; reads are
+ *    performed for at least two bytes (required for the zip translate_eol
+ *    option -- not supported here).
+ */
+function fill_window(s) {
+  var _w_size = s.w_size;
+  var p, n, m, more, str;
+
+  //Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead");
+
+  do {
+    more = s.window_size - s.lookahead - s.strstart;
+
+    // JS ints have 32 bit, block below not needed
+    /* Deal with !@#$% 64K limit: */
+    //if (sizeof(int) <= 2) {
+    //    if (more == 0 && s->strstart == 0 && s->lookahead == 0) {
+    //        more = wsize;
+    //
+    //  } else if (more == (unsigned)(-1)) {
+    //        /* Very unlikely, but possible on 16 bit machine if
+    //         * strstart == 0 && lookahead == 1 (input done a byte at time)
+    //         */
+    //        more--;
+    //    }
+    //}
+
+
+    /* If the window is almost full and there is insufficient lookahead,
+     * move the upper half to the lower one to make room in the upper half.
+     */
+    if (s.strstart >= _w_size + (_w_size - MIN_LOOKAHEAD)) {
+
+      utils.arraySet(s.window, s.window, _w_size, _w_size, 0);
+      s.match_start -= _w_size;
+      s.strstart -= _w_size;
+      /* we now have strstart >= MAX_DIST */
+      s.block_start -= _w_size;
+
+      /* Slide the hash table (could be avoided with 32 bit values
+       at the expense of memory usage). We slide even when level == 0
+       to keep the hash table consistent if we switch back to level > 0
+       later. (Using level 0 permanently is not an optimal usage of
+       zlib, so we don't care about this pathological case.)
+       */
+
+      n = s.hash_size;
+      p = n;
+      do {
+        m = s.head[--p];
+        s.head[p] = (m >= _w_size ? m - _w_size : 0);
+      } while (--n);
+
+      n = _w_size;
+      p = n;
+      do {
+        m = s.prev[--p];
+        s.prev[p] = (m >= _w_size ? m - _w_size : 0);
+        /* If n is not on any hash chain, prev[n] is garbage but
+         * its value will never be used.
+         */
+      } while (--n);
+
+      more += _w_size;
+    }
+    if (s.strm.avail_in === 0) {
+      break;
+    }
+
+    /* If there was no sliding:
+     *    strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
+     *    more == window_size - lookahead - strstart
+     * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1)
+     * => more >= window_size - 2*WSIZE + 2
+     * In the BIG_MEM or MMAP case (not yet supported),
+     *   window_size == input_size + MIN_LOOKAHEAD  &&
+     *   strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD.
+     * Otherwise, window_size == 2*WSIZE so more >= 2.
+     * If there was sliding, more >= WSIZE. So in all cases, more >= 2.
+     */
+    //Assert(more >= 2, "more < 2");
+    n = read_buf(s.strm, s.window, s.strstart + s.lookahead, more);
+    s.lookahead += n;
+
+    /* Initialize the hash value now that we have some input: */
+    if (s.lookahead + s.insert >= MIN_MATCH) {
+      str = s.strstart - s.insert;
+      s.ins_h = s.window[str];
+
+      /* UPDATE_HASH(s, s->ins_h, s->window[str + 1]); */
+      s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + 1]) & s.hash_mask;
+//#if MIN_MATCH != 3
+//        Call update_hash() MIN_MATCH-3 more times
+//#endif
+      while (s.insert) {
+        /* UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); */
+        s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH - 1]) & s.hash_mask;
+
+        s.prev[str & s.w_mask] = s.head[s.ins_h];
+        s.head[s.ins_h] = str;
+        str++;
+        s.insert--;
+        if (s.lookahead + s.insert < MIN_MATCH) {
+          break;
+        }
+      }
+    }
+    /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
+     * but this is not important since only literal bytes will be emitted.
+     */
+
+  } while (s.lookahead < MIN_LOOKAHEAD && s.strm.avail_in !== 0);
+
+  /* If the WIN_INIT bytes after the end of the current data have never been
+   * written, then zero those bytes in order to avoid memory check reports of
+   * the use of uninitialized (or uninitialised as Julian writes) bytes by
+   * the longest match routines.  Update the high water mark for the next
+   * time through here.  WIN_INIT is set to MAX_MATCH since the longest match
+   * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead.
+   */
+//  if (s.high_water < s.window_size) {
+//    var curr = s.strstart + s.lookahead;
+//    var init = 0;
+//
+//    if (s.high_water < curr) {
+//      /* Previous high water mark below current data -- zero WIN_INIT
+//       * bytes or up to end of window, whichever is less.
+//       */
+//      init = s.window_size - curr;
+//      if (init > WIN_INIT)
+//        init = WIN_INIT;
+//      zmemzero(s->window + curr, (unsigned)init);
+//      s->high_water = curr + init;
+//    }
+//    else if (s->high_water < (ulg)curr + WIN_INIT) {
+//      /* High water mark at or above current data, but below current data
+//       * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up
+//       * to end of window, whichever is less.
+//       */
+//      init = (ulg)curr + WIN_INIT - s->high_water;
+//      if (init > s->window_size - s->high_water)
+//        init = s->window_size - s->high_water;
+//      zmemzero(s->window + s->high_water, (unsigned)init);
+//      s->high_water += init;
+//    }
+//  }
+//
+//  Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
+//    "not enough room for search");
+}
+
+/* ===========================================================================
+ * Copy without compression as much as possible from the input stream, return
+ * the current block state.
+ * This function does not insert new strings in the dictionary since
+ * uncompressible data is probably not useful. This function is used
+ * only for the level=0 compression option.
+ * NOTE: this function should be optimized to avoid extra copying from
+ * window to pending_buf.
+ */
+function deflate_stored(s, flush) {
+  /* Stored blocks are limited to 0xffff bytes, pending_buf is limited
+   * to pending_buf_size, and each stored block has a 5 byte header:
+   */
+  var max_block_size = 0xffff;
+
+  if (max_block_size > s.pending_buf_size - 5) {
+    max_block_size = s.pending_buf_size - 5;
+  }
+
+  /* Copy as much as possible from input to output: */
+  for (;;) {
+    /* Fill the window as much as possible: */
+    if (s.lookahead <= 1) {
+
+      //Assert(s->strstart < s->w_size+MAX_DIST(s) ||
+      //  s->block_start >= (long)s->w_size, "slide too late");
+//      if (!(s.strstart < s.w_size + (s.w_size - MIN_LOOKAHEAD) ||
+//        s.block_start >= s.w_size)) {
+//        throw  new Error("slide too late");
+//      }
+
+      fill_window(s);
+      if (s.lookahead === 0 && flush === Z_NO_FLUSH) {
+        return BS_NEED_MORE;
+      }
+
+      if (s.lookahead === 0) {
+        break;
+      }
+      /* flush the current block */
+    }
+    //Assert(s->block_start >= 0L, "block gone");
+//    if (s.block_start < 0) throw new Error("block gone");
+
+    s.strstart += s.lookahead;
+    s.lookahead = 0;
+
+    /* Emit a stored block if pending_buf will be full: */
+    var max_start = s.block_start + max_block_size;
+
+    if (s.strstart === 0 || s.strstart >= max_start) {
+      /* strstart == 0 is possible when wraparound on 16-bit machine */
+      s.lookahead = s.strstart - max_start;
+      s.strstart = max_start;
+      /*** FLUSH_BLOCK(s, 0); ***/
+      flush_block_only(s, false);
+      if (s.strm.avail_out === 0) {
+        return BS_NEED_MORE;
+      }
+      /***/
+
+
+    }
+    /* Flush if we may have to slide, otherwise block_start may become
+     * negative and the data will be gone:
+     */
+    if (s.strstart - s.block_start >= (s.w_size - MIN_LOOKAHEAD)) {
+      /*** FLUSH_BLOCK(s, 0); ***/
+      flush_block_only(s, false);
+      if (s.strm.avail_out === 0) {
+        return BS_NEED_MORE;
+      }
+      /***/
+    }
+  }
+
+  s.insert = 0;
+
+  if (flush === Z_FINISH) {
+    /*** FLUSH_BLOCK(s, 1); ***/
+    flush_block_only(s, true);
+    if (s.strm.avail_out === 0) {
+      return BS_FINISH_STARTED;
+    }
+    /***/
+    return BS_FINISH_DONE;
+  }
+
+  if (s.strstart > s.block_start) {
+    /*** FLUSH_BLOCK(s, 0); ***/
+    flush_block_only(s, false);
+    if (s.strm.avail_out === 0) {
+      return BS_NEED_MORE;
+    }
+    /***/
+  }
+
+  return BS_NEED_MORE;
+}
+
+/* ===========================================================================
+ * Compress as much as possible from the input stream, return the current
+ * block state.
+ * This function does not perform lazy evaluation of matches and inserts
+ * new strings in the dictionary only for unmatched strings or for short
+ * matches. It is used only for the fast compression options.
+ */
+function deflate_fast(s, flush) {
+  var hash_head;        /* head of the hash chain */
+  var bflush;           /* set if current block must be flushed */
+
+  for (;;) {
+    /* Make sure that we always have enough lookahead, except
+     * at the end of the input file. We need MAX_MATCH bytes
+     * for the next match, plus MIN_MATCH bytes to insert the
+     * string following the next match.
+     */
+    if (s.lookahead < MIN_LOOKAHEAD) {
+      fill_window(s);
+      if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) {
+        return BS_NEED_MORE;
+      }
+      if (s.lookahead === 0) {
+        break; /* flush the current block */
+      }
+    }
+
+    /* Insert the string window[strstart .. strstart+2] in the
+     * dictionary, and set hash_head to the head of the hash chain:
+     */
+    hash_head = 0/*NIL*/;
+    if (s.lookahead >= MIN_MATCH) {
+      /*** INSERT_STRING(s, s.strstart, hash_head); ***/
+      s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
+      hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
+      s.head[s.ins_h] = s.strstart;
+      /***/
+    }
+
+    /* Find the longest match, discarding those <= prev_length.
+     * At this point we have always match_length < MIN_MATCH
+     */
+    if (hash_head !== 0/*NIL*/ && ((s.strstart - hash_head) <= (s.w_size - MIN_LOOKAHEAD))) {
+      /* To simplify the code, we prevent matches with the string
+       * of window index 0 (in particular we have to avoid a match
+       * of the string with itself at the start of the input file).
+       */
+      s.match_length = longest_match(s, hash_head);
+      /* longest_match() sets match_start */
+    }
+    if (s.match_length >= MIN_MATCH) {
+      // check_match(s, s.strstart, s.match_start, s.match_length); // for debug only
+
+      /*** _tr_tally_dist(s, s.strstart - s.match_start,
+                     s.match_length - MIN_MATCH, bflush); ***/
+      bflush = trees._tr_tally(s, s.strstart - s.match_start, s.match_length - MIN_MATCH);
+
+      s.lookahead -= s.match_length;
+
+      /* Insert new strings in the hash table only if the match length
+       * is not too large. This saves time but degrades compression.
+       */
+      if (s.match_length <= s.max_lazy_match/*max_insert_length*/ && s.lookahead >= MIN_MATCH) {
+        s.match_length--; /* string at strstart already in table */
+        do {
+          s.strstart++;
+          /*** INSERT_STRING(s, s.strstart, hash_head); ***/
+          s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
+          hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
+          s.head[s.ins_h] = s.strstart;
+          /***/
+          /* strstart never exceeds WSIZE-MAX_MATCH, so there are
+           * always MIN_MATCH bytes ahead.
+           */
+        } while (--s.match_length !== 0);
+        s.strstart++;
+      } else
+      {
+        s.strstart += s.match_length;
+        s.match_length = 0;
+        s.ins_h = s.window[s.strstart];
+        /* UPDATE_HASH(s, s.ins_h, s.window[s.strstart+1]); */
+        s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + 1]) & s.hash_mask;
+
+//#if MIN_MATCH != 3
+//                Call UPDATE_HASH() MIN_MATCH-3 more times
+//#endif
+        /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not
+         * matter since it will be recomputed at next deflate call.
+         */
+      }
+    } else {
+      /* No match, output a literal byte */
+      //Tracevv((stderr,"%c", s.window[s.strstart]));
+      /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/
+      bflush = trees._tr_tally(s, 0, s.window[s.strstart]);
+
+      s.lookahead--;
+      s.strstart++;
+    }
+    if (bflush) {
+      /*** FLUSH_BLOCK(s, 0); ***/
+      flush_block_only(s, false);
+      if (s.strm.avail_out === 0) {
+        return BS_NEED_MORE;
+      }
+      /***/
+    }
+  }
+  s.insert = ((s.strstart < (MIN_MATCH - 1)) ? s.strstart : MIN_MATCH - 1);
+  if (flush === Z_FINISH) {
+    /*** FLUSH_BLOCK(s, 1); ***/
+    flush_block_only(s, true);
+    if (s.strm.avail_out === 0) {
+      return BS_FINISH_STARTED;
+    }
+    /***/
+    return BS_FINISH_DONE;
+  }
+  if (s.last_lit) {
+    /*** FLUSH_BLOCK(s, 0); ***/
+    flush_block_only(s, false);
+    if (s.strm.avail_out === 0) {
+      return BS_NEED_MORE;
+    }
+    /***/
+  }
+  return BS_BLOCK_DONE;
+}
+
+/* ===========================================================================
+ * Same as above, but achieves better compression. We use a lazy
+ * evaluation for matches: a match is finally adopted only if there is
+ * no better match at the next window position.
+ */
+function deflate_slow(s, flush) {
+  var hash_head;          /* head of hash chain */
+  var bflush;              /* set if current block must be flushed */
+
+  var max_insert;
+
+  /* Process the input block. */
+  for (;;) {
+    /* Make sure that we always have enough lookahead, except
+     * at the end of the input file. We need MAX_MATCH bytes
+     * for the next match, plus MIN_MATCH bytes to insert the
+     * string following the next match.
+     */
+    if (s.lookahead < MIN_LOOKAHEAD) {
+      fill_window(s);
+      if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) {
+        return BS_NEED_MORE;
+      }
+      if (s.lookahead === 0) { break; } /* flush the current block */
+    }
+
+    /* Insert the string window[strstart .. strstart+2] in the
+     * dictionary, and set hash_head to the head of the hash chain:
+     */
+    hash_head = 0/*NIL*/;
+    if (s.lookahead >= MIN_MATCH) {
+      /*** INSERT_STRING(s, s.strstart, hash_head); ***/
+      s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
+      hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
+      s.head[s.ins_h] = s.strstart;
+      /***/
+    }
+
+    /* Find the longest match, discarding those <= prev_length.
+     */
+    s.prev_length = s.match_length;
+    s.prev_match = s.match_start;
+    s.match_length = MIN_MATCH - 1;
+
+    if (hash_head !== 0/*NIL*/ && s.prev_length < s.max_lazy_match &&
+        s.strstart - hash_head <= (s.w_size - MIN_LOOKAHEAD)/*MAX_DIST(s)*/) {
+      /* To simplify the code, we prevent matches with the string
+       * of window index 0 (in particular we have to avoid a match
+       * of the string with itself at the start of the input file).
+       */
+      s.match_length = longest_match(s, hash_head);
+      /* longest_match() sets match_start */
+
+      if (s.match_length <= 5 &&
+         (s.strategy === Z_FILTERED || (s.match_length === MIN_MATCH && s.strstart - s.match_start > 4096/*TOO_FAR*/))) {
+
+        /* If prev_match is also MIN_MATCH, match_start is garbage
+         * but we will ignore the current match anyway.
+         */
+        s.match_length = MIN_MATCH - 1;
+      }
+    }
+    /* If there was a match at the previous step and the current
+     * match is not better, output the previous match:
+     */
+    if (s.prev_length >= MIN_MATCH && s.match_length <= s.prev_length) {
+      max_insert = s.strstart + s.lookahead - MIN_MATCH;
+      /* Do not insert strings in hash table beyond this. */
+
+      //check_match(s, s.strstart-1, s.prev_match, s.prev_length);
+
+      /***_tr_tally_dist(s, s.strstart - 1 - s.prev_match,
+                     s.prev_length - MIN_MATCH, bflush);***/
+      bflush = trees._tr_tally(s, s.strstart - 1 - s.prev_match, s.prev_length - MIN_MATCH);
+      /* Insert in hash table all strings up to the end of the match.
+       * strstart-1 and strstart are already inserted. If there is not
+       * enough lookahead, the last two strings are not inserted in
+       * the hash table.
+       */
+      s.lookahead -= s.prev_length - 1;
+      s.prev_length -= 2;
+      do {
+        if (++s.strstart <= max_insert) {
+          /*** INSERT_STRING(s, s.strstart, hash_head); ***/
+          s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
+          hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
+          s.head[s.ins_h] = s.strstart;
+          /***/
+        }
+      } while (--s.prev_length !== 0);
+      s.match_available = 0;
+      s.match_length = MIN_MATCH - 1;
+      s.strstart++;
+
+      if (bflush) {
+        /*** FLUSH_BLOCK(s, 0); ***/
+        flush_block_only(s, false);
+        if (s.strm.avail_out === 0) {
+          return BS_NEED_MORE;
+        }
+        /***/
+      }
+
+    } else if (s.match_available) {
+      /* If there was no match at the previous position, output a
+       * single literal. If there was a match but the current match
+       * is longer, truncate the previous match to a single literal.
+       */
+      //Tracevv((stderr,"%c", s->window[s->strstart-1]));
+      /*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/
+      bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]);
+
+      if (bflush) {
+        /*** FLUSH_BLOCK_ONLY(s, 0) ***/
+        flush_block_only(s, false);
+        /***/
+      }
+      s.strstart++;
+      s.lookahead--;
+      if (s.strm.avail_out === 0) {
+        return BS_NEED_MORE;
+      }
+    } else {
+      /* There is no previous match to compare with, wait for
+       * the next step to decide.
+       */
+      s.match_available = 1;
+      s.strstart++;
+      s.lookahead--;
+    }
+  }
+  //Assert (flush != Z_NO_FLUSH, "no flush?");
+  if (s.match_available) {
+    //Tracevv((stderr,"%c", s->window[s->strstart-1]));
+    /*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/
+    bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]);
+
+    s.match_available = 0;
+  }
+  s.insert = s.strstart < MIN_MATCH - 1 ? s.strstart : MIN_MATCH - 1;
+  if (flush === Z_FINISH) {
+    /*** FLUSH_BLOCK(s, 1); ***/
+    flush_block_only(s, true);
+    if (s.strm.avail_out === 0) {
+      return BS_FINISH_STARTED;
+    }
+    /***/
+    return BS_FINISH_DONE;
+  }
+  if (s.last_lit) {
+    /*** FLUSH_BLOCK(s, 0); ***/
+    flush_block_only(s, false);
+    if (s.strm.avail_out === 0) {
+      return BS_NEED_MORE;
+    }
+    /***/
+  }
+
+  return BS_BLOCK_DONE;
+}
+
+
+/* ===========================================================================
+ * For Z_RLE, simply look for runs of bytes, generate matches only of distance
+ * one.  Do not maintain a hash table.  (It will be regenerated if this run of
+ * deflate switches away from Z_RLE.)
+ */
+function deflate_rle(s, flush) {
+  var bflush;            /* set if current block must be flushed */
+  var prev;              /* byte at distance one to match */
+  var scan, strend;      /* scan goes up to strend for length of run */
+
+  var _win = s.window;
+
+  for (;;) {
+    /* Make sure that we always have enough lookahead, except
+     * at the end of the input file. We need MAX_MATCH bytes
+     * for the longest run, plus one for the unrolled loop.
+     */
+    if (s.lookahead <= MAX_MATCH) {
+      fill_window(s);
+      if (s.lookahead <= MAX_MATCH && flush === Z_NO_FLUSH) {
+        return BS_NEED_MORE;
+      }
+      if (s.lookahead === 0) { break; } /* flush the current block */
+    }
+
+    /* See how many times the previous byte repeats */
+    s.match_length = 0;
+    if (s.lookahead >= MIN_MATCH && s.strstart > 0) {
+      scan = s.strstart - 1;
+      prev = _win[scan];
+      if (prev === _win[++scan] && prev === _win[++scan] && prev === _win[++scan]) {
+        strend = s.strstart + MAX_MATCH;
+        do {
+          /*jshint noempty:false*/
+        } while (prev === _win[++scan] && prev === _win[++scan] &&
+                 prev === _win[++scan] && prev === _win[++scan] &&
+                 prev === _win[++scan] && prev === _win[++scan] &&
+                 prev === _win[++scan] && prev === _win[++scan] &&
+                 scan < strend);
+        s.match_length = MAX_MATCH - (strend - scan);
+        if (s.match_length > s.lookahead) {
+          s.match_length = s.lookahead;
+        }
+      }
+      //Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan");
+    }
+
+    /* Emit match if have run of MIN_MATCH or longer, else emit literal */
+    if (s.match_length >= MIN_MATCH) {
+      //check_match(s, s.strstart, s.strstart - 1, s.match_length);
+
+      /*** _tr_tally_dist(s, 1, s.match_length - MIN_MATCH, bflush); ***/
+      bflush = trees._tr_tally(s, 1, s.match_length - MIN_MATCH);
+
+      s.lookahead -= s.match_length;
+      s.strstart += s.match_length;
+      s.match_length = 0;
+    } else {
+      /* No match, output a literal byte */
+      //Tracevv((stderr,"%c", s->window[s->strstart]));
+      /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/
+      bflush = trees._tr_tally(s, 0, s.window[s.strstart]);
+
+      s.lookahead--;
+      s.strstart++;
+    }
+    if (bflush) {
+      /*** FLUSH_BLOCK(s, 0); ***/
+      flush_block_only(s, false);
+      if (s.strm.avail_out === 0) {
+        return BS_NEED_MORE;
+      }
+      /***/
+    }
+  }
+  s.insert = 0;
+  if (flush === Z_FINISH) {
+    /*** FLUSH_BLOCK(s, 1); ***/
+    flush_block_only(s, true);
+    if (s.strm.avail_out === 0) {
+      return BS_FINISH_STARTED;
+    }
+    /***/
+    return BS_FINISH_DONE;
+  }
+  if (s.last_lit) {
+    /*** FLUSH_BLOCK(s, 0); ***/
+    flush_block_only(s, false);
+    if (s.strm.avail_out === 0) {
+      return BS_NEED_MORE;
+    }
+    /***/
+  }
+  return BS_BLOCK_DONE;
+}
+
+/* ===========================================================================
+ * For Z_HUFFMAN_ONLY, do not look for matches.  Do not maintain a hash table.
+ * (It will be regenerated if this run of deflate switches away from Huffman.)
+ */
+function deflate_huff(s, flush) {
+  var bflush;             /* set if current block must be flushed */
+
+  for (;;) {
+    /* Make sure that we have a literal to write. */
+    if (s.lookahead === 0) {
+      fill_window(s);
+      if (s.lookahead === 0) {
+        if (flush === Z_NO_FLUSH) {
+          return BS_NEED_MORE;
+        }
+        break;      /* flush the current block */
+      }
+    }
+
+    /* Output a literal byte */
+    s.match_length = 0;
+    //Tracevv((stderr,"%c", s->window[s->strstart]));
+    /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/
+    bflush = trees._tr_tally(s, 0, s.window[s.strstart]);
+    s.lookahead--;
+    s.strstart++;
+    if (bflush) {
+      /*** FLUSH_BLOCK(s, 0); ***/
+      flush_block_only(s, false);
+      if (s.strm.avail_out === 0) {
+        return BS_NEED_MORE;
+      }
+      /***/
+    }
+  }
+  s.insert = 0;
+  if (flush === Z_FINISH) {
+    /*** FLUSH_BLOCK(s, 1); ***/
+    flush_block_only(s, true);
+    if (s.strm.avail_out === 0) {
+      return BS_FINISH_STARTED;
+    }
+    /***/
+    return BS_FINISH_DONE;
+  }
+  if (s.last_lit) {
+    /*** FLUSH_BLOCK(s, 0); ***/
+    flush_block_only(s, false);
+    if (s.strm.avail_out === 0) {
+      return BS_NEED_MORE;
+    }
+    /***/
+  }
+  return BS_BLOCK_DONE;
+}
+
+/* Values for max_lazy_match, good_match and max_chain_length, depending on
+ * the desired pack level (0..9). The values given below have been tuned to
+ * exclude worst case performance for pathological files. Better values may be
+ * found for specific files.
+ */
+function Config(good_length, max_lazy, nice_length, max_chain, func) {
+  this.good_length = good_length;
+  this.max_lazy = max_lazy;
+  this.nice_length = nice_length;
+  this.max_chain = max_chain;
+  this.func = func;
+}
+
+var configuration_table;
+
+configuration_table = [
+  /*      good lazy nice chain */
+  new Config(0, 0, 0, 0, deflate_stored),          /* 0 store only */
+  new Config(4, 4, 8, 4, deflate_fast),            /* 1 max speed, no lazy matches */
+  new Config(4, 5, 16, 8, deflate_fast),           /* 2 */
+  new Config(4, 6, 32, 32, deflate_fast),          /* 3 */
+
+  new Config(4, 4, 16, 16, deflate_slow),          /* 4 lazy matches */
+  new Config(8, 16, 32, 32, deflate_slow),         /* 5 */
+  new Config(8, 16, 128, 128, deflate_slow),       /* 6 */
+  new Config(8, 32, 128, 256, deflate_slow),       /* 7 */
+  new Config(32, 128, 258, 1024, deflate_slow),    /* 8 */
+  new Config(32, 258, 258, 4096, deflate_slow)     /* 9 max compression */
+];
+
+
+/* ===========================================================================
+ * Initialize the "longest match" routines for a new zlib stream
+ */
+function lm_init(s) {
+  s.window_size = 2 * s.w_size;
+
+  /*** CLEAR_HASH(s); ***/
+  zero(s.head); // Fill with NIL (= 0);
+
+  /* Set the default configuration parameters:
+   */
+  s.max_lazy_match = configuration_table[s.level].max_lazy;
+  s.good_match = configuration_table[s.level].good_length;
+  s.nice_match = configuration_table[s.level].nice_length;
+  s.max_chain_length = configuration_table[s.level].max_chain;
+
+  s.strstart = 0;
+  s.block_start = 0;
+  s.lookahead = 0;
+  s.insert = 0;
+  s.match_length = s.prev_length = MIN_MATCH - 1;
+  s.match_available = 0;
+  s.ins_h = 0;
+}
+
+
+function DeflateState() {
+  this.strm = null;            /* pointer back to this zlib stream */
+  this.status = 0;            /* as the name implies */
+  this.pending_buf = null;      /* output still pending */
+  this.pending_buf_size = 0;  /* size of pending_buf */
+  this.pending_out = 0;       /* next pending byte to output to the stream */
+  this.pending = 0;           /* nb of bytes in the pending buffer */
+  this.wrap = 0;              /* bit 0 true for zlib, bit 1 true for gzip */
+  this.gzhead = null;         /* gzip header information to write */
+  this.gzindex = 0;           /* where in extra, name, or comment */
+  this.method = Z_DEFLATED; /* can only be DEFLATED */
+  this.last_flush = -1;   /* value of flush param for previous deflate call */
+
+  this.w_size = 0;  /* LZ77 window size (32K by default) */
+  this.w_bits = 0;  /* log2(w_size)  (8..16) */
+  this.w_mask = 0;  /* w_size - 1 */
+
+  this.window = null;
+  /* Sliding window. Input bytes are read into the second half of the window,
+   * and move to the first half later to keep a dictionary of at least wSize
+   * bytes. With this organization, matches are limited to a distance of
+   * wSize-MAX_MATCH bytes, but this ensures that IO is always
+   * performed with a length multiple of the block size.
+   */
+
+  this.window_size = 0;
+  /* Actual size of window: 2*wSize, except when the user input buffer
+   * is directly used as sliding window.
+   */
+
+  this.prev = null;
+  /* Link to older string with same hash index. To limit the size of this
+   * array to 64K, this link is maintained only for the last 32K strings.
+   * An index in this array is thus a window index modulo 32K.
+   */
+
+  this.head = null;   /* Heads of the hash chains or NIL. */
+
+  this.ins_h = 0;       /* hash index of string to be inserted */
+  this.hash_size = 0;   /* number of elements in hash table */
+  this.hash_bits = 0;   /* log2(hash_size) */
+  this.hash_mask = 0;   /* hash_size-1 */
+
+  this.hash_shift = 0;
+  /* Number of bits by which ins_h must be shifted at each input
+   * step. It must be such that after MIN_MATCH steps, the oldest
+   * byte no longer takes part in the hash key, that is:
+   *   hash_shift * MIN_MATCH >= hash_bits
+   */
+
+  this.block_start = 0;
+  /* Window position at the beginning of the current output block. Gets
+   * negative when the window is moved backwards.
+   */
+
+  this.match_length = 0;      /* length of best match */
+  this.prev_match = 0;        /* previous match */
+  this.match_available = 0;   /* set if previous match exists */
+  this.strstart = 0;          /* start of string to insert */
+  this.match_start = 0;       /* start of matching string */
+  this.lookahead = 0;         /* number of valid bytes ahead in window */
+
+  this.prev_length = 0;
+  /* Length of the best match at previous step. Matches not greater than this
+   * are discarded. This is used in the lazy match evaluation.
+   */
+
+  this.max_chain_length = 0;
+  /* To speed up deflation, hash chains are never searched beyond this
+   * length.  A higher limit improves compression ratio but degrades the
+   * speed.
+   */
+
+  this.max_lazy_match = 0;
+  /* Attempt to find a better match only when the current match is strictly
+   * smaller than this value. This mechanism is used only for compression
+   * levels >= 4.
+   */
+  // That's alias to max_lazy_match, don't use directly
+  //this.max_insert_length = 0;
+  /* Insert new strings in the hash table only if the match length is not
+   * greater than this length. This saves time but degrades compression.
+   * max_insert_length is used only for compression levels <= 3.
+   */
+
+  this.level = 0;     /* compression level (1..9) */
+  this.strategy = 0;  /* favor or force Huffman coding*/
+
+  this.good_match = 0;
+  /* Use a faster search when the previous match is longer than this */
+
+  this.nice_match = 0; /* Stop searching when current match exceeds this */
+
+              /* used by trees.c: */
+
+  /* Didn't use ct_data typedef below to suppress compiler warning */
+
+  // struct ct_data_s dyn_ltree[HEAP_SIZE];   /* literal and length tree */
+  // struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
+  // struct ct_data_s bl_tree[2*BL_CODES+1];  /* Huffman tree for bit lengths */
+
+  // Use flat array of DOUBLE size, with interleaved fata,
+  // because JS does not support effective
+  this.dyn_ltree  = new utils.Buf16(HEAP_SIZE * 2);
+  this.dyn_dtree  = new utils.Buf16((2 * D_CODES + 1) * 2);
+  this.bl_tree    = new utils.Buf16((2 * BL_CODES + 1) * 2);
+  zero(this.dyn_ltree);
+  zero(this.dyn_dtree);
+  zero(this.bl_tree);
+
+  this.l_desc   = null;         /* desc. for literal tree */
+  this.d_desc   = null;         /* desc. for distance tree */
+  this.bl_desc  = null;         /* desc. for bit length tree */
+
+  //ush bl_count[MAX_BITS+1];
+  this.bl_count = new utils.Buf16(MAX_BITS + 1);
+  /* number of codes at each bit length for an optimal tree */
+
+  //int heap[2*L_CODES+1];      /* heap used to build the Huffman trees */
+  this.heap = new utils.Buf16(2 * L_CODES + 1);  /* heap used to build the Huffman trees */
+  zero(this.heap);
+
+  this.heap_len = 0;               /* number of elements in the heap */
+  this.heap_max = 0;               /* element of largest frequency */
+  /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
+   * The same heap array is used to build all trees.
+   */
+
+  this.depth = new utils.Buf16(2 * L_CODES + 1); //uch depth[2*L_CODES+1];
+  zero(this.depth);
+  /* Depth of each subtree used as tie breaker for trees of equal frequency
+   */
+
+  this.l_buf = 0;          /* buffer index for literals or lengths */
+
+  this.lit_bufsize = 0;
+  /* Size of match buffer for literals/lengths.  There are 4 reasons for
+   * limiting lit_bufsize to 64K:
+   *   - frequencies can be kept in 16 bit counters
+   *   - if compression is not successful for the first block, all input
+   *     data is still in the window so we can still emit a stored block even
+   *     when input comes from standard input.  (This can also be done for
+   *     all blocks if lit_bufsize is not greater than 32K.)
+   *   - if compression is not successful for a file smaller than 64K, we can
+   *     even emit a stored file instead of a stored block (saving 5 bytes).
+   *     This is applicable only for zip (not gzip or zlib).
+   *   - creating new Huffman trees less frequently may not provide fast
+   *     adaptation to changes in the input data statistics. (Take for
+   *     example a binary file with poorly compressible code followed by
+   *     a highly compressible string table.) Smaller buffer sizes give
+   *     fast adaptation but have of course the overhead of transmitting
+   *     trees more frequently.
+   *   - I can't count above 4
+   */
+
+  this.last_lit = 0;      /* running index in l_buf */
+
+  this.d_buf = 0;
+  /* Buffer index for distances. To simplify the code, d_buf and l_buf have
+   * the same number of elements. To use different lengths, an extra flag
+   * array would be necessary.
+   */
+
+  this.opt_len = 0;       /* bit length of current block with optimal trees */
+  this.static_len = 0;    /* bit length of current block with static trees */
+  this.matches = 0;       /* number of string matches in current block */
+  this.insert = 0;        /* bytes at end of window left to insert */
+
+
+  this.bi_buf = 0;
+  /* Output buffer. bits are inserted starting at the bottom (least
+   * significant bits).
+   */
+  this.bi_valid = 0;
+  /* Number of valid bits in bi_buf.  All bits above the last valid bit
+   * are always zero.
+   */
+
+  // Used for window memory init. We safely ignore it for JS. That makes
+  // sense only for pointers and memory check tools.
+  //this.high_water = 0;
+  /* High water mark offset in window for initialized bytes -- bytes above
+   * this are set to zero in order to avoid memory check warnings when
+   * longest match routines access bytes past the input.  This is then
+   * updated to the new high water mark.
+   */
+}
+
+
+function deflateResetKeep(strm) {
+  var s;
+
+  if (!strm || !strm.state) {
+    return err(strm, Z_STREAM_ERROR);
+  }
+
+  strm.total_in = strm.total_out = 0;
+  strm.data_type = Z_UNKNOWN;
+
+  s = strm.state;
+  s.pending = 0;
+  s.pending_out = 0;
+
+  if (s.wrap < 0) {
+    s.wrap = -s.wrap;
+    /* was made negative by deflate(..., Z_FINISH); */
+  }
+  s.status = (s.wrap ? INIT_STATE : BUSY_STATE);
+  strm.adler = (s.wrap === 2) ?
+    0  // crc32(0, Z_NULL, 0)
+  :
+    1; // adler32(0, Z_NULL, 0)
+  s.last_flush = Z_NO_FLUSH;
+  trees._tr_init(s);
+  return Z_OK;
+}
+
+
+function deflateReset(strm) {
+  var ret = deflateResetKeep(strm);
+  if (ret === Z_OK) {
+    lm_init(strm.state);
+  }
+  return ret;
+}
+
+
+function deflateSetHeader(strm, head) {
+  if (!strm || !strm.state) { return Z_STREAM_ERROR; }
+  if (strm.state.wrap !== 2) { return Z_STREAM_ERROR; }
+  strm.state.gzhead = head;
+  return Z_OK;
+}
+
+
+function deflateInit2(strm, level, method, windowBits, memLevel, strategy) {
+  if (!strm) { // === Z_NULL
+    return Z_STREAM_ERROR;
+  }
+  var wrap = 1;
+
+  if (level === Z_DEFAULT_COMPRESSION) {
+    level = 6;
+  }
+
+  if (windowBits < 0) { /* suppress zlib wrapper */
+    wrap = 0;
+    windowBits = -windowBits;
+  }
+
+  else if (windowBits > 15) {
+    wrap = 2;           /* write gzip wrapper instead */
+    windowBits -= 16;
+  }
+
+
+  if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method !== Z_DEFLATED ||
+    windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
+    strategy < 0 || strategy > Z_FIXED) {
+    return err(strm, Z_STREAM_ERROR);
+  }
+
+
+  if (windowBits === 8) {
+    windowBits = 9;
+  }
+  /* until 256-byte window bug fixed */
+
+  var s = new DeflateState();
+
+  strm.state = s;
+  s.strm = strm;
+
+  s.wrap = wrap;
+  s.gzhead = null;
+  s.w_bits = windowBits;
+  s.w_size = 1 << s.w_bits;
+  s.w_mask = s.w_size - 1;
+
+  s.hash_bits = memLevel + 7;
+  s.hash_size = 1 << s.hash_bits;
+  s.hash_mask = s.hash_size - 1;
+  s.hash_shift = ~~((s.hash_bits + MIN_MATCH - 1) / MIN_MATCH);
+
+  s.window = new utils.Buf8(s.w_size * 2);
+  s.head = new utils.Buf16(s.hash_size);
+  s.prev = new utils.Buf16(s.w_size);
+
+  // Don't need mem init magic for JS.
+  //s.high_water = 0;  /* nothing written to s->window yet */
+
+  s.lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
+
+  s.pending_buf_size = s.lit_bufsize * 4;
+
+  //overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2);
+  //s->pending_buf = (uchf *) overlay;
+  s.pending_buf = new utils.Buf8(s.pending_buf_size);
+
+  // It is offset from `s.pending_buf` (size is `s.lit_bufsize * 2`)
+  //s->d_buf = overlay + s->lit_bufsize/sizeof(ush);
+  s.d_buf = 1 * s.lit_bufsize;
+
+  //s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize;
+  s.l_buf = (1 + 2) * s.lit_bufsize;
+
+  s.level = level;
+  s.strategy = strategy;
+  s.method = method;
+
+  return deflateReset(strm);
+}
+
+function deflateInit(strm, level) {
+  return deflateInit2(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
+}
+
+
+function deflate(strm, flush) {
+  var old_flush, s;
+  var beg, val; // for gzip header write only
+
+  if (!strm || !strm.state ||
+    flush > Z_BLOCK || flush < 0) {
+    return strm ? err(strm, Z_STREAM_ERROR) : Z_STREAM_ERROR;
+  }
+
+  s = strm.state;
+
+  if (!strm.output ||
+      (!strm.input && strm.avail_in !== 0) ||
+      (s.status === FINISH_STATE && flush !== Z_FINISH)) {
+    return err(strm, (strm.avail_out === 0) ? Z_BUF_ERROR : Z_STREAM_ERROR);
+  }
+
+  s.strm = strm; /* just in case */
+  old_flush = s.last_flush;
+  s.last_flush = flush;
+
+  /* Write the header */
+  if (s.status === INIT_STATE) {
+
+    if (s.wrap === 2) { // GZIP header
+      strm.adler = 0;  //crc32(0L, Z_NULL, 0);
+      put_byte(s, 31);
+      put_byte(s, 139);
+      put_byte(s, 8);
+      if (!s.gzhead) { // s->gzhead == Z_NULL
+        put_byte(s, 0);
+        put_byte(s, 0);
+        put_byte(s, 0);
+        put_byte(s, 0);
+        put_byte(s, 0);
+        put_byte(s, s.level === 9 ? 2 :
+                    (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ?
+                     4 : 0));
+        put_byte(s, OS_CODE);
+        s.status = BUSY_STATE;
+      }
+      else {
+        put_byte(s, (s.gzhead.text ? 1 : 0) +
+                    (s.gzhead.hcrc ? 2 : 0) +
+                    (!s.gzhead.extra ? 0 : 4) +
+                    (!s.gzhead.name ? 0 : 8) +
+                    (!s.gzhead.comment ? 0 : 16)
+        );
+        put_byte(s, s.gzhead.time & 0xff);
+        put_byte(s, (s.gzhead.time >> 8) & 0xff);
+        put_byte(s, (s.gzhead.time >> 16) & 0xff);
+        put_byte(s, (s.gzhead.time >> 24) & 0xff);
+        put_byte(s, s.level === 9 ? 2 :
+                    (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ?
+                     4 : 0));
+        put_byte(s, s.gzhead.os & 0xff);
+        if (s.gzhead.extra && s.gzhead.extra.length) {
+          put_byte(s, s.gzhead.extra.length & 0xff);
+          put_byte(s, (s.gzhead.extra.length >> 8) & 0xff);
+        }
+        if (s.gzhead.hcrc) {
+          strm.adler = crc32(strm.adler, s.pending_buf, s.pending, 0);
+        }
+        s.gzindex = 0;
+        s.status = EXTRA_STATE;
+      }
+    }
+    else // DEFLATE header
+    {
+      var header = (Z_DEFLATED + ((s.w_bits - 8) << 4)) << 8;
+      var level_flags = -1;
+
+      if (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2) {
+        level_flags = 0;
+      } else if (s.level < 6) {
+        level_flags = 1;
+      } else if (s.level === 6) {
+        level_flags = 2;
+      } else {
+        level_flags = 3;
+      }
+      header |= (level_flags << 6);
+      if (s.strstart !== 0) { header |= PRESET_DICT; }
+      header += 31 - (header % 31);
+
+      s.status = BUSY_STATE;
+      putShortMSB(s, header);
+
+      /* Save the adler32 of the preset dictionary: */
+      if (s.strstart !== 0) {
+        putShortMSB(s, strm.adler >>> 16);
+        putShortMSB(s, strm.adler & 0xffff);
+      }
+      strm.adler = 1; // adler32(0L, Z_NULL, 0);
+    }
+  }
+
+//#ifdef GZIP
+  if (s.status === EXTRA_STATE) {
+    if (s.gzhead.extra/* != Z_NULL*/) {
+      beg = s.pending;  /* start of bytes to update crc */
+
+      while (s.gzindex < (s.gzhead.extra.length & 0xffff)) {
+        if (s.pending === s.pending_buf_size) {
+          if (s.gzhead.hcrc && s.pending > beg) {
+            strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
+          }
+          flush_pending(strm);
+          beg = s.pending;
+          if (s.pending === s.pending_buf_size) {
+            break;
+          }
+        }
+        put_byte(s, s.gzhead.extra[s.gzindex] & 0xff);
+        s.gzindex++;
+      }
+      if (s.gzhead.hcrc && s.pending > beg) {
+        strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
+      }
+      if (s.gzindex === s.gzhead.extra.length) {
+        s.gzindex = 0;
+        s.status = NAME_STATE;
+      }
+    }
+    else {
+      s.status = NAME_STATE;
+    }
+  }
+  if (s.status === NAME_STATE) {
+    if (s.gzhead.name/* != Z_NULL*/) {
+      beg = s.pending;  /* start of bytes to update crc */
+      //int val;
+
+      do {
+        if (s.pending === s.pending_buf_size) {
+          if (s.gzhead.hcrc && s.pending > beg) {
+            strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
+          }
+          flush_pending(strm);
+          beg = s.pending;
+          if (s.pending === s.pending_buf_size) {
+            val = 1;
+            break;
+          }
+        }
+        // JS specific: little magic to add zero terminator to end of string
+        if (s.gzindex < s.gzhead.name.length) {
+          val = s.gzhead.name.charCodeAt(s.gzindex++) & 0xff;
+        } else {
+          val = 0;
+        }
+        put_byte(s, val);
+      } while (val !== 0);
+
+      if (s.gzhead.hcrc && s.pending > beg) {
+        strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
+      }
+      if (val === 0) {
+        s.gzindex = 0;
+        s.status = COMMENT_STATE;
+      }
+    }
+    else {
+      s.status = COMMENT_STATE;
+    }
+  }
+  if (s.status === COMMENT_STATE) {
+    if (s.gzhead.comment/* != Z_NULL*/) {
+      beg = s.pending;  /* start of bytes to update crc */
+      //int val;
+
+      do {
+        if (s.pending === s.pending_buf_size) {
+          if (s.gzhead.hcrc && s.pending > beg) {
+            strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
+          }
+          flush_pending(strm);
+          beg = s.pending;
+          if (s.pending === s.pending_buf_size) {
+            val = 1;
+            break;
+          }
+        }
+        // JS specific: little magic to add zero terminator to end of string
+        if (s.gzindex < s.gzhead.comment.length) {
+          val = s.gzhead.comment.charCodeAt(s.gzindex++) & 0xff;
+        } else {
+          val = 0;
+        }
+        put_byte(s, val);
+      } while (val !== 0);
+
+      if (s.gzhead.hcrc && s.pending > beg) {
+        strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
+      }
+      if (val === 0) {
+        s.status = HCRC_STATE;
+      }
+    }
+    else {
+      s.status = HCRC_STATE;
+    }
+  }
+  if (s.status === HCRC_STATE) {
+    if (s.gzhead.hcrc) {
+      if (s.pending + 2 > s.pending_buf_size) {
+        flush_pending(strm);
+      }
+      if (s.pending + 2 <= s.pending_buf_size) {
+        put_byte(s, strm.adler & 0xff);
+        put_byte(s, (strm.adler >> 8) & 0xff);
+        strm.adler = 0; //crc32(0L, Z_NULL, 0);
+        s.status = BUSY_STATE;
+      }
+    }
+    else {
+      s.status = BUSY_STATE;
+    }
+  }
+//#endif
+
+  /* Flush as much pending output as possible */
+  if (s.pending !== 0) {
+    flush_pending(strm);
+    if (strm.avail_out === 0) {
+      /* Since avail_out is 0, deflate will be called again with
+       * more output space, but possibly with both pending and
+       * avail_in equal to zero. There won't be anything to do,
+       * but this is not an error situation so make sure we
+       * return OK instead of BUF_ERROR at next call of deflate:
+       */
+      s.last_flush = -1;
+      return Z_OK;
+    }
+
+    /* Make sure there is something to do and avoid duplicate consecutive
+     * flushes. For repeated and useless calls with Z_FINISH, we keep
+     * returning Z_STREAM_END instead of Z_BUF_ERROR.
+     */
+  } else if (strm.avail_in === 0 && rank(flush) <= rank(old_flush) &&
+    flush !== Z_FINISH) {
+    return err(strm, Z_BUF_ERROR);
+  }
+
+  /* User must not provide more input after the first FINISH: */
+  if (s.status === FINISH_STATE && strm.avail_in !== 0) {
+    return err(strm, Z_BUF_ERROR);
+  }
+
+  /* Start a new block or continue the current one.
+   */
+  if (strm.avail_in !== 0 || s.lookahead !== 0 ||
+    (flush !== Z_NO_FLUSH && s.status !== FINISH_STATE)) {
+    var bstate = (s.strategy === Z_HUFFMAN_ONLY) ? deflate_huff(s, flush) :
+      (s.strategy === Z_RLE ? deflate_rle(s, flush) :
+        configuration_table[s.level].func(s, flush));
+
+    if (bstate === BS_FINISH_STARTED || bstate === BS_FINISH_DONE) {
+      s.status = FINISH_STATE;
+    }
+    if (bstate === BS_NEED_MORE || bstate === BS_FINISH_STARTED) {
+      if (strm.avail_out === 0) {
+        s.last_flush = -1;
+        /* avoid BUF_ERROR next call, see above */
+      }
+      return Z_OK;
+      /* If flush != Z_NO_FLUSH && avail_out == 0, the next call
+       * of deflate should use the same flush parameter to make sure
+       * that the flush is complete. So we don't have to output an
+       * empty block here, this will be done at next call. This also
+       * ensures that for a very small output buffer, we emit at most
+       * one empty block.
+       */
+    }
+    if (bstate === BS_BLOCK_DONE) {
+      if (flush === Z_PARTIAL_FLUSH) {
+        trees._tr_align(s);
+      }
+      else if (flush !== Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */
+
+        trees._tr_stored_block(s, 0, 0, false);
+        /* For a full flush, this empty block will be recognized
+         * as a special marker by inflate_sync().
+         */
+        if (flush === Z_FULL_FLUSH) {
+          /*** CLEAR_HASH(s); ***/             /* forget history */
+          zero(s.head); // Fill with NIL (= 0);
+
+          if (s.lookahead === 0) {
+            s.strstart = 0;
+            s.block_start = 0;
+            s.insert = 0;
+          }
+        }
+      }
+      flush_pending(strm);
+      if (strm.avail_out === 0) {
+        s.last_flush = -1; /* avoid BUF_ERROR at next call, see above */
+        return Z_OK;
+      }
+    }
+  }
+  //Assert(strm->avail_out > 0, "bug2");
+  //if (strm.avail_out <= 0) { throw new Error("bug2");}
+
+  if (flush !== Z_FINISH) { return Z_OK; }
+  if (s.wrap <= 0) { return Z_STREAM_END; }
+
+  /* Write the trailer */
+  if (s.wrap === 2) {
+    put_byte(s, strm.adler & 0xff);
+    put_byte(s, (strm.adler >> 8) & 0xff);
+    put_byte(s, (strm.adler >> 16) & 0xff);
+    put_byte(s, (strm.adler >> 24) & 0xff);
+    put_byte(s, strm.total_in & 0xff);
+    put_byte(s, (strm.total_in >> 8) & 0xff);
+    put_byte(s, (strm.total_in >> 16) & 0xff);
+    put_byte(s, (strm.total_in >> 24) & 0xff);
+  }
+  else
+  {
+    putShortMSB(s, strm.adler >>> 16);
+    putShortMSB(s, strm.adler & 0xffff);
+  }
+
+  flush_pending(strm);
+  /* If avail_out is zero, the application will call deflate again
+   * to flush the rest.
+   */
+  if (s.wrap > 0) { s.wrap = -s.wrap; }
+  /* write the trailer only once! */
+  return s.pending !== 0 ? Z_OK : Z_STREAM_END;
+}
+
+function deflateEnd(strm) {
+  var status;
+
+  if (!strm/*== Z_NULL*/ || !strm.state/*== Z_NULL*/) {
+    return Z_STREAM_ERROR;
+  }
+
+  status = strm.state.status;
+  if (status !== INIT_STATE &&
+    status !== EXTRA_STATE &&
+    status !== NAME_STATE &&
+    status !== COMMENT_STATE &&
+    status !== HCRC_STATE &&
+    status !== BUSY_STATE &&
+    status !== FINISH_STATE
+  ) {
+    return err(strm, Z_STREAM_ERROR);
+  }
+
+  strm.state = null;
+
+  return status === BUSY_STATE ? err(strm, Z_DATA_ERROR) : Z_OK;
+}
+
+
+/* =========================================================================
+ * Initializes the compression dictionary from the given byte
+ * sequence without producing any compressed output.
+ */
+function deflateSetDictionary(strm, dictionary) {
+  var dictLength = dictionary.length;
+
+  var s;
+  var str, n;
+  var wrap;
+  var avail;
+  var next;
+  var input;
+  var tmpDict;
+
+  if (!strm/*== Z_NULL*/ || !strm.state/*== Z_NULL*/) {
+    return Z_STREAM_ERROR;
+  }
+
+  s = strm.state;
+  wrap = s.wrap;
+
+  if (wrap === 2 || (wrap === 1 && s.status !== INIT_STATE) || s.lookahead) {
+    return Z_STREAM_ERROR;
+  }
+
+  /* when using zlib wrappers, compute Adler-32 for provided dictionary */
+  if (wrap === 1) {
+    /* adler32(strm->adler, dictionary, dictLength); */
+    strm.adler = adler32(strm.adler, dictionary, dictLength, 0);
+  }
+
+  s.wrap = 0;   /* avoid computing Adler-32 in read_buf */
+
+  /* if dictionary would fill window, just replace the history */
+  if (dictLength >= s.w_size) {
+    if (wrap === 0) {            /* already empty otherwise */
+      /*** CLEAR_HASH(s); ***/
+      zero(s.head); // Fill with NIL (= 0);
+      s.strstart = 0;
+      s.block_start = 0;
+      s.insert = 0;
+    }
+    /* use the tail */
+    // dictionary = dictionary.slice(dictLength - s.w_size);
+    tmpDict = new utils.Buf8(s.w_size);
+    utils.arraySet(tmpDict, dictionary, dictLength - s.w_size, s.w_size, 0);
+    dictionary = tmpDict;
+    dictLength = s.w_size;
+  }
+  /* insert dictionary into window and hash */
+  avail = strm.avail_in;
+  next = strm.next_in;
+  input = strm.input;
+  strm.avail_in = dictLength;
+  strm.next_in = 0;
+  strm.input = dictionary;
+  fill_window(s);
+  while (s.lookahead >= MIN_MATCH) {
+    str = s.strstart;
+    n = s.lookahead - (MIN_MATCH - 1);
+    do {
+      /* UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); */
+      s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH - 1]) & s.hash_mask;
+
+      s.prev[str & s.w_mask] = s.head[s.ins_h];
+
+      s.head[s.ins_h] = str;
+      str++;
+    } while (--n);
+    s.strstart = str;
+    s.lookahead = MIN_MATCH - 1;
+    fill_window(s);
+  }
+  s.strstart += s.lookahead;
+  s.block_start = s.strstart;
+  s.insert = s.lookahead;
+  s.lookahead = 0;
+  s.match_length = s.prev_length = MIN_MATCH - 1;
+  s.match_available = 0;
+  strm.next_in = next;
+  strm.input = input;
+  strm.avail_in = avail;
+  s.wrap = wrap;
+  return Z_OK;
+}
+
+
+exports.deflateInit = deflateInit;
+exports.deflateInit2 = deflateInit2;
+exports.deflateReset = deflateReset;
+exports.deflateResetKeep = deflateResetKeep;
+exports.deflateSetHeader = deflateSetHeader;
+exports.deflate = deflate;
+exports.deflateEnd = deflateEnd;
+exports.deflateSetDictionary = deflateSetDictionary;
+exports.deflateInfo = 'pako deflate (from Nodeca project)';
+
+/* Not implemented
+exports.deflateBound = deflateBound;
+exports.deflateCopy = deflateCopy;
+exports.deflateParams = deflateParams;
+exports.deflatePending = deflatePending;
+exports.deflatePrime = deflatePrime;
+exports.deflateTune = deflateTune;
+*/
+
+},{"../utils/common":50,"./adler32":52,"./crc32":54,"./messages":60,"./trees":61}],56:[function(require,module,exports){
+'use strict';
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+function GZheader() {
+  /* true if compressed data believed to be text */
+  this.text       = 0;
+  /* modification time */
+  this.time       = 0;
+  /* extra flags (not used when writing a gzip file) */
+  this.xflags     = 0;
+  /* operating system */
+  this.os         = 0;
+  /* pointer to extra field or Z_NULL if none */
+  this.extra      = null;
+  /* extra field length (valid if extra != Z_NULL) */
+  this.extra_len  = 0; // Actually, we don't need it in JS,
+                       // but leave for few code modifications
+
+  //
+  // Setup limits is not necessary because in js we should not preallocate memory
+  // for inflate use constant limit in 65536 bytes
+  //
+
+  /* space at extra (only when reading header) */
+  // this.extra_max  = 0;
+  /* pointer to zero-terminated file name or Z_NULL */
+  this.name       = '';
+  /* space at name (only when reading header) */
+  // this.name_max   = 0;
+  /* pointer to zero-terminated comment or Z_NULL */
+  this.comment    = '';
+  /* space at comment (only when reading header) */
+  // this.comm_max   = 0;
+  /* true if there was or will be a header crc */
+  this.hcrc       = 0;
+  /* true when done reading gzip header (not used when writing a gzip file) */
+  this.done       = false;
+}
+
+module.exports = GZheader;
+
+},{}],57:[function(require,module,exports){
+'use strict';
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+// See state defs from inflate.js
+var BAD = 30;       /* got a data error -- remain here until reset */
+var TYPE = 12;      /* i: waiting for type bits, including last-flag bit */
+
+/*
+   Decode literal, length, and distance codes and write out the resulting
+   literal and match bytes until either not enough input or output is
+   available, an end-of-block is encountered, or a data error is encountered.
+   When large enough input and output buffers are supplied to inflate(), for
+   example, a 16K input buffer and a 64K output buffer, more than 95% of the
+   inflate execution time is spent in this routine.
+
+   Entry assumptions:
+
+        state.mode === LEN
+        strm.avail_in >= 6
+        strm.avail_out >= 258
+        start >= strm.avail_out
+        state.bits < 8
+
+   On return, state.mode is one of:
+
+        LEN -- ran out of enough output space or enough available input
+        TYPE -- reached end of block code, inflate() to interpret next block
+        BAD -- error in block data
+
+   Notes:
+
+    - The maximum input bits used by a length/distance pair is 15 bits for the
+      length code, 5 bits for the length extra, 15 bits for the distance code,
+      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
+      Therefore if strm.avail_in >= 6, then there is enough input to avoid
+      checking for available input while decoding.
+
+    - The maximum bytes that a single length/distance pair can output is 258
+      bytes, which is the maximum length that can be coded.  inflate_fast()
+      requires strm.avail_out >= 258 for each loop to avoid checking for
+      output space.
+ */
+module.exports = function inflate_fast(strm, start) {
+  var state;
+  var _in;                    /* local strm.input */
+  var last;                   /* have enough input while in < last */
+  var _out;                   /* local strm.output */
+  var beg;                    /* inflate()'s initial strm.output */
+  var end;                    /* while out < end, enough space available */
+//#ifdef INFLATE_STRICT
+  var dmax;                   /* maximum distance from zlib header */
+//#endif
+  var wsize;                  /* window size or zero if not using window */
+  var whave;                  /* valid bytes in the window */
+  var wnext;                  /* window write index */
+  // Use `s_window` instead `window`, avoid conflict with instrumentation tools
+  var s_window;               /* allocated sliding window, if wsize != 0 */
+  var hold;                   /* local strm.hold */
+  var bits;                   /* local strm.bits */
+  var lcode;                  /* local strm.lencode */
+  var dcode;                  /* local strm.distcode */
+  var lmask;                  /* mask for first level of length codes */
+  var dmask;                  /* mask for first level of distance codes */
+  var here;                   /* retrieved table entry */
+  var op;                     /* code bits, operation, extra bits, or */
+                              /*  window position, window bytes to copy */
+  var len;                    /* match length, unused bytes */
+  var dist;                   /* match distance */
+  var from;                   /* where to copy match from */
+  var from_source;
+
+
+  var input, output; // JS specific, because we have no pointers
+
+  /* copy state to local variables */
+  state = strm.state;
+  //here = state.here;
+  _in = strm.next_in;
+  input = strm.input;
+  last = _in + (strm.avail_in - 5);
+  _out = strm.next_out;
+  output = strm.output;
+  beg = _out - (start - strm.avail_out);
+  end = _out + (strm.avail_out - 257);
+//#ifdef INFLATE_STRICT
+  dmax = state.dmax;
+//#endif
+  wsize = state.wsize;
+  whave = state.whave;
+  wnext = state.wnext;
+  s_window = state.window;
+  hold = state.hold;
+  bits = state.bits;
+  lcode = state.lencode;
+  dcode = state.distcode;
+  lmask = (1 << state.lenbits) - 1;
+  dmask = (1 << state.distbits) - 1;
+
+
+  /* decode literals and length/distances until end-of-block or not enough
+     input data or output space */
+
+  top:
+  do {
+    if (bits < 15) {
+      hold += input[_in++] << bits;
+      bits += 8;
+      hold += input[_in++] << bits;
+      bits += 8;
+    }
+
+    here = lcode[hold & lmask];
+
+    dolen:
+    for (;;) { // Goto emulation
+      op = here >>> 24/*here.bits*/;
+      hold >>>= op;
+      bits -= op;
+      op = (here >>> 16) & 0xff/*here.op*/;
+      if (op === 0) {                          /* literal */
+        //Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
+        //        "inflate:         literal '%c'\n" :
+        //        "inflate:         literal 0x%02x\n", here.val));
+        output[_out++] = here & 0xffff/*here.val*/;
+      }
+      else if (op & 16) {                     /* length base */
+        len = here & 0xffff/*here.val*/;
+        op &= 15;                           /* number of extra bits */
+        if (op) {
+          if (bits < op) {
+            hold += input[_in++] << bits;
+            bits += 8;
+          }
+          len += hold & ((1 << op) - 1);
+          hold >>>= op;
+          bits -= op;
+        }
+        //Tracevv((stderr, "inflate:         length %u\n", len));
+        if (bits < 15) {
+          hold += input[_in++] << bits;
+          bits += 8;
+          hold += input[_in++] << bits;
+          bits += 8;
+        }
+        here = dcode[hold & dmask];
+
+        dodist:
+        for (;;) { // goto emulation
+          op = here >>> 24/*here.bits*/;
+          hold >>>= op;
+          bits -= op;
+          op = (here >>> 16) & 0xff/*here.op*/;
+
+          if (op & 16) {                      /* distance base */
+            dist = here & 0xffff/*here.val*/;
+            op &= 15;                       /* number of extra bits */
+            if (bits < op) {
+              hold += input[_in++] << bits;
+              bits += 8;
+              if (bits < op) {
+                hold += input[_in++] << bits;
+                bits += 8;
+              }
+            }
+            dist += hold & ((1 << op) - 1);
+//#ifdef INFLATE_STRICT
+            if (dist > dmax) {
+              strm.msg = 'invalid distance too far back';
+              state.mode = BAD;
+              break top;
+            }
+//#endif
+            hold >>>= op;
+            bits -= op;
+            //Tracevv((stderr, "inflate:         distance %u\n", dist));
+            op = _out - beg;                /* max distance in output */
+            if (dist > op) {                /* see if copy from window */
+              op = dist - op;               /* distance back in window */
+              if (op > whave) {
+                if (state.sane) {
+                  strm.msg = 'invalid distance too far back';
+                  state.mode = BAD;
+                  break top;
+                }
+
+// (!) This block is disabled in zlib defaults,
+// don't enable it for binary compatibility
+//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+//                if (len <= op - whave) {
+//                  do {
+//                    output[_out++] = 0;
+//                  } while (--len);
+//                  continue top;
+//                }
+//                len -= op - whave;
+//                do {
+//                  output[_out++] = 0;
+//                } while (--op > whave);
+//                if (op === 0) {
+//                  from = _out - dist;
+//                  do {
+//                    output[_out++] = output[from++];
+//                  } while (--len);
+//                  continue top;
+//                }
+//#endif
+              }
+              from = 0; // window index
+              from_source = s_window;
+              if (wnext === 0) {           /* very common case */
+                from += wsize - op;
+                if (op < len) {         /* some from window */
+                  len -= op;
+                  do {
+                    output[_out++] = s_window[from++];
+                  } while (--op);
+                  from = _out - dist;  /* rest from output */
+                  from_source = output;
+                }
+              }
+              else if (wnext < op) {      /* wrap around window */
+                from += wsize + wnext - op;
+                op -= wnext;
+                if (op < len) {         /* some from end of window */
+                  len -= op;
+                  do {
+                    output[_out++] = s_window[from++];
+                  } while (--op);
+                  from = 0;
+                  if (wnext < len) {  /* some from start of window */
+                    op = wnext;
+                    len -= op;
+                    do {
+                      output[_out++] = s_window[from++];
+                    } while (--op);
+                    from = _out - dist;      /* rest from output */
+                    from_source = output;
+                  }
+                }
+              }
+              else {                      /* contiguous in window */
+                from += wnext - op;
+                if (op < len) {         /* some from window */
+                  len -= op;
+                  do {
+                    output[_out++] = s_window[from++];
+                  } while (--op);
+                  from = _out - dist;  /* rest from output */
+                  from_source = output;
+                }
+              }
+              while (len > 2) {
+                output[_out++] = from_source[from++];
+                output[_out++] = from_source[from++];
+                output[_out++] = from_source[from++];
+                len -= 3;
+              }
+              if (len) {
+                output[_out++] = from_source[from++];
+                if (len > 1) {
+                  output[_out++] = from_source[from++];
+                }
+              }
+            }
+            else {
+              from = _out - dist;          /* copy direct from output */
+              do {                        /* minimum length is three */
+                output[_out++] = output[from++];
+                output[_out++] = output[from++];
+                output[_out++] = output[from++];
+                len -= 3;
+              } while (len > 2);
+              if (len) {
+                output[_out++] = output[from++];
+                if (len > 1) {
+                  output[_out++] = output[from++];
+                }
+              }
+            }
+          }
+          else if ((op & 64) === 0) {          /* 2nd level distance code */
+            here = dcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))];
+            continue dodist;
+          }
+          else {
+            strm.msg = 'invalid distance code';
+            state.mode = BAD;
+            break top;
+          }
+
+          break; // need to emulate goto via "continue"
+        }
+      }
+      else if ((op & 64) === 0) {              /* 2nd level length code */
+        here = lcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))];
+        continue dolen;
+      }
+      else if (op & 32) {                     /* end-of-block */
+        //Tracevv((stderr, "inflate:         end of block\n"));
+        state.mode = TYPE;
+        break top;
+      }
+      else {
+        strm.msg = 'invalid literal/length code';
+        state.mode = BAD;
+        break top;
+      }
+
+      break; // need to emulate goto via "continue"
+    }
+  } while (_in < last && _out < end);
+
+  /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
+  len = bits >> 3;
+  _in -= len;
+  bits -= len << 3;
+  hold &= (1 << bits) - 1;
+
+  /* update state and return */
+  strm.next_in = _in;
+  strm.next_out = _out;
+  strm.avail_in = (_in < last ? 5 + (last - _in) : 5 - (_in - last));
+  strm.avail_out = (_out < end ? 257 + (end - _out) : 257 - (_out - end));
+  state.hold = hold;
+  state.bits = bits;
+  return;
+};
+
+},{}],58:[function(require,module,exports){
+'use strict';
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+var utils         = require('../utils/common');
+var adler32       = require('./adler32');
+var crc32         = require('./crc32');
+var inflate_fast  = require('./inffast');
+var inflate_table = require('./inftrees');
+
+var CODES = 0;
+var LENS = 1;
+var DISTS = 2;
+
+/* Public constants ==========================================================*/
+/* ===========================================================================*/
+
+
+/* Allowed flush values; see deflate() and inflate() below for details */
+//var Z_NO_FLUSH      = 0;
+//var Z_PARTIAL_FLUSH = 1;
+//var Z_SYNC_FLUSH    = 2;
+//var Z_FULL_FLUSH    = 3;
+var Z_FINISH        = 4;
+var Z_BLOCK         = 5;
+var Z_TREES         = 6;
+
+
+/* Return codes for the compression/decompression functions. Negative values
+ * are errors, positive values are used for special but normal events.
+ */
+var Z_OK            = 0;
+var Z_STREAM_END    = 1;
+var Z_NEED_DICT     = 2;
+//var Z_ERRNO         = -1;
+var Z_STREAM_ERROR  = -2;
+var Z_DATA_ERROR    = -3;
+var Z_MEM_ERROR     = -4;
+var Z_BUF_ERROR     = -5;
+//var Z_VERSION_ERROR = -6;
+
+/* The deflate compression method */
+var Z_DEFLATED  = 8;
+
+
+/* STATES ====================================================================*/
+/* ===========================================================================*/
+
+
+var    HEAD = 1;       /* i: waiting for magic header */
+var    FLAGS = 2;      /* i: waiting for method and flags (gzip) */
+var    TIME = 3;       /* i: waiting for modification time (gzip) */
+var    OS = 4;         /* i: waiting for extra flags and operating system (gzip) */
+var    EXLEN = 5;      /* i: waiting for extra length (gzip) */
+var    EXTRA = 6;      /* i: waiting for extra bytes (gzip) */
+var    NAME = 7;       /* i: waiting for end of file name (gzip) */
+var    COMMENT = 8;    /* i: waiting for end of comment (gzip) */
+var    HCRC = 9;       /* i: waiting for header crc (gzip) */
+var    DICTID = 10;    /* i: waiting for dictionary check value */
+var    DICT = 11;      /* waiting for inflateSetDictionary() call */
+var        TYPE = 12;      /* i: waiting for type bits, including last-flag bit */
+var        TYPEDO = 13;    /* i: same, but skip check to exit inflate on new block */
+var        STORED = 14;    /* i: waiting for stored size (length and complement) */
+var        COPY_ = 15;     /* i/o: same as COPY below, but only first time in */
+var        COPY = 16;      /* i/o: waiting for input or output to copy stored block */
+var        TABLE = 17;     /* i: waiting for dynamic block table lengths */
+var        LENLENS = 18;   /* i: waiting for code length code lengths */
+var        CODELENS = 19;  /* i: waiting for length/lit and distance code lengths */
+var            LEN_ = 20;      /* i: same as LEN below, but only first time in */
+var            LEN = 21;       /* i: waiting for length/lit/eob code */
+var            LENEXT = 22;    /* i: waiting for length extra bits */
+var            DIST = 23;      /* i: waiting for distance code */
+var            DISTEXT = 24;   /* i: waiting for distance extra bits */
+var            MATCH = 25;     /* o: waiting for output space to copy string */
+var            LIT = 26;       /* o: waiting for output space to write literal */
+var    CHECK = 27;     /* i: waiting for 32-bit check value */
+var    LENGTH = 28;    /* i: waiting for 32-bit length (gzip) */
+var    DONE = 29;      /* finished check, done -- remain here until reset */
+var    BAD = 30;       /* got a data error -- remain here until reset */
+var    MEM = 31;       /* got an inflate() memory error -- remain here until reset */
+var    SYNC = 32;      /* looking for synchronization bytes to restart inflate() */
+
+/* ===========================================================================*/
+
+
+
+var ENOUGH_LENS = 852;
+var ENOUGH_DISTS = 592;
+//var ENOUGH =  (ENOUGH_LENS+ENOUGH_DISTS);
+
+var MAX_WBITS = 15;
+/* 32K LZ77 window */
+var DEF_WBITS = MAX_WBITS;
+
+
+function zswap32(q) {
+  return  (((q >>> 24) & 0xff) +
+          ((q >>> 8) & 0xff00) +
+          ((q & 0xff00) << 8) +
+          ((q & 0xff) << 24));
+}
+
+
+function InflateState() {
+  this.mode = 0;             /* current inflate mode */
+  this.last = false;          /* true if processing last block */
+  this.wrap = 0;              /* bit 0 true for zlib, bit 1 true for gzip */
+  this.havedict = false;      /* true if dictionary provided */
+  this.flags = 0;             /* gzip header method and flags (0 if zlib) */
+  this.dmax = 0;              /* zlib header max distance (INFLATE_STRICT) */
+  this.check = 0;             /* protected copy of check value */
+  this.total = 0;             /* protected copy of output count */
+  // TODO: may be {}
+  this.head = null;           /* where to save gzip header information */
+
+  /* sliding window */
+  this.wbits = 0;             /* log base 2 of requested window size */
+  this.wsize = 0;             /* window size or zero if not using window */
+  this.whave = 0;             /* valid bytes in the window */
+  this.wnext = 0;             /* window write index */
+  this.window = null;         /* allocated sliding window, if needed */
+
+  /* bit accumulator */
+  this.hold = 0;              /* input bit accumulator */
+  this.bits = 0;              /* number of bits in "in" */
+
+  /* for string and stored block copying */
+  this.length = 0;            /* literal or length of data to copy */
+  this.offset = 0;            /* distance back to copy string from */
+
+  /* for table and code decoding */
+  this.extra = 0;             /* extra bits needed */
+
+  /* fixed and dynamic code tables */
+  this.lencode = null;          /* starting table for length/literal codes */
+  this.distcode = null;         /* starting table for distance codes */
+  this.lenbits = 0;           /* index bits for lencode */
+  this.distbits = 0;          /* index bits for distcode */
+
+  /* dynamic table building */
+  this.ncode = 0;             /* number of code length code lengths */
+  this.nlen = 0;              /* number of length code lengths */
+  this.ndist = 0;             /* number of distance code lengths */
+  this.have = 0;              /* number of code lengths in lens[] */
+  this.next = null;              /* next available space in codes[] */
+
+  this.lens = new utils.Buf16(320); /* temporary storage for code lengths */
+  this.work = new utils.Buf16(288); /* work area for code table building */
+
+  /*
+   because we don't have pointers in js, we use lencode and distcode directly
+   as buffers so we don't need codes
+  */
+  //this.codes = new utils.Buf32(ENOUGH);       /* space for code tables */
+  this.lendyn = null;              /* dynamic table for length/literal codes (JS specific) */
+  this.distdyn = null;             /* dynamic table for distance codes (JS specific) */
+  this.sane = 0;                   /* if false, allow invalid distance too far */
+  this.back = 0;                   /* bits back of last unprocessed length/lit */
+  this.was = 0;                    /* initial length of match */
+}
+
+function inflateResetKeep(strm) {
+  var state;
+
+  if (!strm || !strm.state) { return Z_STREAM_ERROR; }
+  state = strm.state;
+  strm.total_in = strm.total_out = state.total = 0;
+  strm.msg = ''; /*Z_NULL*/
+  if (state.wrap) {       /* to support ill-conceived Java test suite */
+    strm.adler = state.wrap & 1;
+  }
+  state.mode = HEAD;
+  state.last = 0;
+  state.havedict = 0;
+  state.dmax = 32768;
+  state.head = null/*Z_NULL*/;
+  state.hold = 0;
+  state.bits = 0;
+  //state.lencode = state.distcode = state.next = state.codes;
+  state.lencode = state.lendyn = new utils.Buf32(ENOUGH_LENS);
+  state.distcode = state.distdyn = new utils.Buf32(ENOUGH_DISTS);
+
+  state.sane = 1;
+  state.back = -1;
+  //Tracev((stderr, "inflate: reset\n"));
+  return Z_OK;
+}
+
+function inflateReset(strm) {
+  var state;
+
+  if (!strm || !strm.state) { return Z_STREAM_ERROR; }
+  state = strm.state;
+  state.wsize = 0;
+  state.whave = 0;
+  state.wnext = 0;
+  return inflateResetKeep(strm);
+
+}
+
+function inflateReset2(strm, windowBits) {
+  var wrap;
+  var state;
+
+  /* get the state */
+  if (!strm || !strm.state) { return Z_STREAM_ERROR; }
+  state = strm.state;
+
+  /* extract wrap request from windowBits parameter */
+  if (windowBits < 0) {
+    wrap = 0;
+    windowBits = -windowBits;
+  }
+  else {
+    wrap = (windowBits >> 4) + 1;
+    if (windowBits < 48) {
+      windowBits &= 15;
+    }
+  }
+
+  /* set number of window bits, free window if different */
+  if (windowBits && (windowBits < 8 || windowBits > 15)) {
+    return Z_STREAM_ERROR;
+  }
+  if (state.window !== null && state.wbits !== windowBits) {
+    state.window = null;
+  }
+
+  /* update state and reset the rest of it */
+  state.wrap = wrap;
+  state.wbits = windowBits;
+  return inflateReset(strm);
+}
+
+function inflateInit2(strm, windowBits) {
+  var ret;
+  var state;
+
+  if (!strm) { return Z_STREAM_ERROR; }
+  //strm.msg = Z_NULL;                 /* in case we return an error */
+
+  state = new InflateState();
+
+  //if (state === Z_NULL) return Z_MEM_ERROR;
+  //Tracev((stderr, "inflate: allocated\n"));
+  strm.state = state;
+  state.window = null/*Z_NULL*/;
+  ret = inflateReset2(strm, windowBits);
+  if (ret !== Z_OK) {
+    strm.state = null/*Z_NULL*/;
+  }
+  return ret;
+}
+
+function inflateInit(strm) {
+  return inflateInit2(strm, DEF_WBITS);
+}
+
+
+/*
+ Return state with length and distance decoding tables and index sizes set to
+ fixed code decoding.  Normally this returns fixed tables from inffixed.h.
+ If BUILDFIXED is defined, then instead this routine builds the tables the
+ first time it's called, and returns those tables the first time and
+ thereafter.  This reduces the size of the code by about 2K bytes, in
+ exchange for a little execution time.  However, BUILDFIXED should not be
+ used for threaded applications, since the rewriting of the tables and virgin
+ may not be thread-safe.
+ */
+var virgin = true;
+
+var lenfix, distfix; // We have no pointers in JS, so keep tables separate
+
+function fixedtables(state) {
+  /* build fixed huffman tables if first call (may not be thread safe) */
+  if (virgin) {
+    var sym;
+
+    lenfix = new utils.Buf32(512);
+    distfix = new utils.Buf32(32);
+
+    /* literal/length table */
+    sym = 0;
+    while (sym < 144) { state.lens[sym++] = 8; }
+    while (sym < 256) { state.lens[sym++] = 9; }
+    while (sym < 280) { state.lens[sym++] = 7; }
+    while (sym < 288) { state.lens[sym++] = 8; }
+
+    inflate_table(LENS,  state.lens, 0, 288, lenfix,   0, state.work, { bits: 9 });
+
+    /* distance table */
+    sym = 0;
+    while (sym < 32) { state.lens[sym++] = 5; }
+
+    inflate_table(DISTS, state.lens, 0, 32,   distfix, 0, state.work, { bits: 5 });
+
+    /* do this just once */
+    virgin = false;
+  }
+
+  state.lencode = lenfix;
+  state.lenbits = 9;
+  state.distcode = distfix;
+  state.distbits = 5;
+}
+
+
+/*
+ Update the window with the last wsize (normally 32K) bytes written before
+ returning.  If window does not exist yet, create it.  This is only called
+ when a window is already in use, or when output has been written during this
+ inflate call, but the end of the deflate stream has not been reached yet.
+ It is also called to create a window for dictionary data when a dictionary
+ is loaded.
+
+ Providing output buffers larger than 32K to inflate() should provide a speed
+ advantage, since only the last 32K of output is copied to the sliding window
+ upon return from inflate(), and since all distances after the first 32K of
+ output will fall in the output data, making match copies simpler and faster.
+ The advantage may be dependent on the size of the processor's data caches.
+ */
+function updatewindow(strm, src, end, copy) {
+  var dist;
+  var state = strm.state;
+
+  /* if it hasn't been done already, allocate space for the window */
+  if (state.window === null) {
+    state.wsize = 1 << state.wbits;
+    state.wnext = 0;
+    state.whave = 0;
+
+    state.window = new utils.Buf8(state.wsize);
+  }
+
+  /* copy state->wsize or less output bytes into the circular window */
+  if (copy >= state.wsize) {
+    utils.arraySet(state.window, src, end - state.wsize, state.wsize, 0);
+    state.wnext = 0;
+    state.whave = state.wsize;
+  }
+  else {
+    dist = state.wsize - state.wnext;
+    if (dist > copy) {
+      dist = copy;
+    }
+    //zmemcpy(state->window + state->wnext, end - copy, dist);
+    utils.arraySet(state.window, src, end - copy, dist, state.wnext);
+    copy -= dist;
+    if (copy) {
+      //zmemcpy(state->window, end - copy, copy);
+      utils.arraySet(state.window, src, end - copy, copy, 0);
+      state.wnext = copy;
+      state.whave = state.wsize;
+    }
+    else {
+      state.wnext += dist;
+      if (state.wnext === state.wsize) { state.wnext = 0; }
+      if (state.whave < state.wsize) { state.whave += dist; }
+    }
+  }
+  return 0;
+}
+
+function inflate(strm, flush) {
+  var state;
+  var input, output;          // input/output buffers
+  var next;                   /* next input INDEX */
+  var put;                    /* next output INDEX */
+  var have, left;             /* available input and output */
+  var hold;                   /* bit buffer */
+  var bits;                   /* bits in bit buffer */
+  var _in, _out;              /* save starting available input and output */
+  var copy;                   /* number of stored or match bytes to copy */
+  var from;                   /* where to copy match bytes from */
+  var from_source;
+  var here = 0;               /* current decoding table entry */
+  var here_bits, here_op, here_val; // paked "here" denormalized (JS specific)
+  //var last;                   /* parent table entry */
+  var last_bits, last_op, last_val; // paked "last" denormalized (JS specific)
+  var len;                    /* length to copy for repeats, bits to drop */
+  var ret;                    /* return code */
+  var hbuf = new utils.Buf8(4);    /* buffer for gzip header crc calculation */
+  var opts;
+
+  var n; // temporary var for NEED_BITS
+
+  var order = /* permutation of code lengths */
+    [ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 ];
+
+
+  if (!strm || !strm.state || !strm.output ||
+      (!strm.input && strm.avail_in !== 0)) {
+    return Z_STREAM_ERROR;
+  }
+
+  state = strm.state;
+  if (state.mode === TYPE) { state.mode = TYPEDO; }    /* skip check */
+
+
+  //--- LOAD() ---
+  put = strm.next_out;
+  output = strm.output;
+  left = strm.avail_out;
+  next = strm.next_in;
+  input = strm.input;
+  have = strm.avail_in;
+  hold = state.hold;
+  bits = state.bits;
+  //---
+
+  _in = have;
+  _out = left;
+  ret = Z_OK;
+
+  inf_leave: // goto emulation
+  for (;;) {
+    switch (state.mode) {
+      case HEAD:
+        if (state.wrap === 0) {
+          state.mode = TYPEDO;
+          break;
+        }
+        //=== NEEDBITS(16);
+        while (bits < 16) {
+          if (have === 0) { break inf_leave; }
+          have--;
+          hold += input[next++] << bits;
+          bits += 8;
+        }
+        //===//
+        if ((state.wrap & 2) && hold === 0x8b1f) {  /* gzip header */
+          state.check = 0/*crc32(0L, Z_NULL, 0)*/;
+          //=== CRC2(state.check, hold);
+          hbuf[0] = hold & 0xff;
+          hbuf[1] = (hold >>> 8) & 0xff;
+          state.check = crc32(state.check, hbuf, 2, 0);
+          //===//
+
+          //=== INITBITS();
+          hold = 0;
+          bits = 0;
+          //===//
+          state.mode = FLAGS;
+          break;
+        }
+        state.flags = 0;           /* expect zlib header */
+        if (state.head) {
+          state.head.done = false;
+        }
+        if (!(state.wrap & 1) ||   /* check if zlib header allowed */
+          (((hold & 0xff)/*BITS(8)*/ << 8) + (hold >> 8)) % 31) {
+          strm.msg = 'incorrect header check';
+          state.mode = BAD;
+          break;
+        }
+        if ((hold & 0x0f)/*BITS(4)*/ !== Z_DEFLATED) {
+          strm.msg = 'unknown compression method';
+          state.mode = BAD;
+          break;
+        }
+        //--- DROPBITS(4) ---//
+        hold >>>= 4;
+        bits -= 4;
+        //---//
+        len = (hold & 0x0f)/*BITS(4)*/ + 8;
+        if (state.wbits === 0) {
+          state.wbits = len;
+        }
+        else if (len > state.wbits) {
+          strm.msg = 'invalid window size';
+          state.mode = BAD;
+          break;
+        }
+        state.dmax = 1 << len;
+        //Tracev((stderr, "inflate:   zlib header ok\n"));
+        strm.adler = state.check = 1/*adler32(0L, Z_NULL, 0)*/;
+        state.mode = hold & 0x200 ? DICTID : TYPE;
+        //=== INITBITS();
+        hold = 0;
+        bits = 0;
+        //===//
+        break;
+      case FLAGS:
+        //=== NEEDBITS(16); */
+        while (bits < 16) {
+          if (have === 0) { break inf_leave; }
+          have--;
+          hold += input[next++] << bits;
+          bits += 8;
+        }
+        //===//
+        state.flags = hold;
+        if ((state.flags & 0xff) !== Z_DEFLATED) {
+          strm.msg = 'unknown compression method';
+          state.mode = BAD;
+          break;
+        }
+        if (state.flags & 0xe000) {
+          strm.msg = 'unknown header flags set';
+          state.mode = BAD;
+          break;
+        }
+        if (state.head) {
+          state.head.text = ((hold >> 8) & 1);
+        }
+        if (state.flags & 0x0200) {
+          //=== CRC2(state.check, hold);
+          hbuf[0] = hold & 0xff;
+          hbuf[1] = (hold >>> 8) & 0xff;
+          state.check = crc32(state.check, hbuf, 2, 0);
+          //===//
+        }
+        //=== INITBITS();
+        hold = 0;
+        bits = 0;
+        //===//
+        state.mode = TIME;
+        /* falls through */
+      case TIME:
+        //=== NEEDBITS(32); */
+        while (bits < 32) {
+          if (have === 0) { break inf_leave; }
+          have--;
+          hold += input[next++] << bits;
+          bits += 8;
+        }
+        //===//
+        if (state.head) {
+          state.head.time = hold;
+        }
+        if (state.flags & 0x0200) {
+          //=== CRC4(state.check, hold)
+          hbuf[0] = hold & 0xff;
+          hbuf[1] = (hold >>> 8) & 0xff;
+          hbuf[2] = (hold >>> 16) & 0xff;
+          hbuf[3] = (hold >>> 24) & 0xff;
+          state.check = crc32(state.check, hbuf, 4, 0);
+          //===
+        }
+        //=== INITBITS();
+        hold = 0;
+        bits = 0;
+        //===//
+        state.mode = OS;
+        /* falls through */
+      case OS:
+        //=== NEEDBITS(16); */
+        while (bits < 16) {
+          if (have === 0) { break inf_leave; }
+          have--;
+          hold += input[next++] << bits;
+          bits += 8;
+        }
+        //===//
+        if (state.head) {
+          state.head.xflags = (hold & 0xff);
+          state.head.os = (hold >> 8);
+        }
+        if (state.flags & 0x0200) {
+          //=== CRC2(state.check, hold);
+          hbuf[0] = hold & 0xff;
+          hbuf[1] = (hold >>> 8) & 0xff;
+          state.check = crc32(state.check, hbuf, 2, 0);
+          //===//
+        }
+        //=== INITBITS();
+        hold = 0;
+        bits = 0;
+        //===//
+        state.mode = EXLEN;
+        /* falls through */
+      case EXLEN:
+        if (state.flags & 0x0400) {
+          //=== NEEDBITS(16); */
+          while (bits < 16) {
+            if (have === 0) { break inf_leave; }
+            have--;
+            hold += input[next++] << bits;
+            bits += 8;
+          }
+          //===//
+          state.length = hold;
+          if (state.head) {
+            state.head.extra_len = hold;
+          }
+          if (state.flags & 0x0200) {
+            //=== CRC2(state.check, hold);
+            hbuf[0] = hold & 0xff;
+            hbuf[1] = (hold >>> 8) & 0xff;
+            state.check = crc32(state.check, hbuf, 2, 0);
+            //===//
+          }
+          //=== INITBITS();
+          hold = 0;
+          bits = 0;
+          //===//
+        }
+        else if (state.head) {
+          state.head.extra = null/*Z_NULL*/;
+        }
+        state.mode = EXTRA;
+        /* falls through */
+      case EXTRA:
+        if (state.flags & 0x0400) {
+          copy = state.length;
+          if (copy > have) { copy = have; }
+          if (copy) {
+            if (state.head) {
+              len = state.head.extra_len - state.length;
+              if (!state.head.extra) {
+                // Use untyped array for more convenient processing later
+                state.head.extra = new Array(state.head.extra_len);
+              }
+              utils.arraySet(
+                state.head.extra,
+                input,
+                next,
+                // extra field is limited to 65536 bytes
+                // - no need for additional size check
+                copy,
+                /*len + copy > state.head.extra_max - len ? state.head.extra_max : copy,*/
+                len
+              );
+              //zmemcpy(state.head.extra + len, next,
+              //        len + copy > state.head.extra_max ?
+              //        state.head.extra_max - len : copy);
+            }
+            if (state.flags & 0x0200) {
+              state.check = crc32(state.check, input, copy, next);
+            }
+            have -= copy;
+            next += copy;
+            state.length -= copy;
+          }
+          if (state.length) { break inf_leave; }
+        }
+        state.length = 0;
+        state.mode = NAME;
+        /* falls through */
+      case NAME:
+        if (state.flags & 0x0800) {
+          if (have === 0) { break inf_leave; }
+          copy = 0;
+          do {
+            // TODO: 2 or 1 bytes?
+            len = input[next + copy++];
+            /* use constant limit because in js we should not preallocate memory */
+            if (state.head && len &&
+                (state.length < 65536 /*state.head.name_max*/)) {
+              state.head.name += String.fromCharCode(len);
+            }
+          } while (len && copy < have);
+
+          if (state.flags & 0x0200) {
+            state.check = crc32(state.check, input, copy, next);
+          }
+          have -= copy;
+          next += copy;
+          if (len) { break inf_leave; }
+        }
+        else if (state.head) {
+          state.head.name = null;
+        }
+        state.length = 0;
+        state.mode = COMMENT;
+        /* falls through */
+      case COMMENT:
+        if (state.flags & 0x1000) {
+          if (have === 0) { break inf_leave; }
+          copy = 0;
+          do {
+            len = input[next + copy++];
+            /* use constant limit because in js we should not preallocate memory */
+            if (state.head && len &&
+                (state.length < 65536 /*state.head.comm_max*/)) {
+              state.head.comment += String.fromCharCode(len);
+            }
+          } while (len && copy < have);
+          if (state.flags & 0x0200) {
+            state.check = crc32(state.check, input, copy, next);
+          }
+          have -= copy;
+          next += copy;
+          if (len) { break inf_leave; }
+        }
+        else if (state.head) {
+          state.head.comment = null;
+        }
+        state.mode = HCRC;
+        /* falls through */
+      case HCRC:
+        if (state.flags & 0x0200) {
+          //=== NEEDBITS(16); */
+          while (bits < 16) {
+            if (have === 0) { break inf_leave; }
+            have--;
+            hold += input[next++] << bits;
+            bits += 8;
+          }
+          //===//
+          if (hold !== (state.check & 0xffff)) {
+            strm.msg = 'header crc mismatch';
+            state.mode = BAD;
+            break;
+          }
+          //=== INITBITS();
+          hold = 0;
+          bits = 0;
+          //===//
+        }
+        if (state.head) {
+          state.head.hcrc = ((state.flags >> 9) & 1);
+          state.head.done = true;
+        }
+        strm.adler = state.check = 0;
+        state.mode = TYPE;
+        break;
+      case DICTID:
+        //=== NEEDBITS(32); */
+        while (bits < 32) {
+          if (have === 0) { break inf_leave; }
+          have--;
+          hold += input[next++] << bits;
+          bits += 8;
+        }
+        //===//
+        strm.adler = state.check = zswap32(hold);
+        //=== INITBITS();
+        hold = 0;
+        bits = 0;
+        //===//
+        state.mode = DICT;
+        /* falls through */
+      case DICT:
+        if (state.havedict === 0) {
+          //--- RESTORE() ---
+          strm.next_out = put;
+          strm.avail_out = left;
+          strm.next_in = next;
+          strm.avail_in = have;
+          state.hold = hold;
+          state.bits = bits;
+          //---
+          return Z_NEED_DICT;
+        }
+        strm.adler = state.check = 1/*adler32(0L, Z_NULL, 0)*/;
+        state.mode = TYPE;
+        /* falls through */
+      case TYPE:
+        if (flush === Z_BLOCK || flush === Z_TREES) { break inf_leave; }
+        /* falls through */
+      case TYPEDO:
+        if (state.last) {
+          //--- BYTEBITS() ---//
+          hold >>>= bits & 7;
+          bits -= bits & 7;
+          //---//
+          state.mode = CHECK;
+          break;
+        }
+        //=== NEEDBITS(3); */
+        while (bits < 3) {
+          if (have === 0) { break inf_leave; }
+          have--;
+          hold += input[next++] << bits;
+          bits += 8;
+        }
+        //===//
+        state.last = (hold & 0x01)/*BITS(1)*/;
+        //--- DROPBITS(1) ---//
+        hold >>>= 1;
+        bits -= 1;
+        //---//
+
+        switch ((hold & 0x03)/*BITS(2)*/) {
+          case 0:                             /* stored block */
+            //Tracev((stderr, "inflate:     stored block%s\n",
+            //        state.last ? " (last)" : ""));
+            state.mode = STORED;
+            break;
+          case 1:                             /* fixed block */
+            fixedtables(state);
+            //Tracev((stderr, "inflate:     fixed codes block%s\n",
+            //        state.last ? " (last)" : ""));
+            state.mode = LEN_;             /* decode codes */
+            if (flush === Z_TREES) {
+              //--- DROPBITS(2) ---//
+              hold >>>= 2;
+              bits -= 2;
+              //---//
+              break inf_leave;
+            }
+            break;
+          case 2:                             /* dynamic block */
+            //Tracev((stderr, "inflate:     dynamic codes block%s\n",
+            //        state.last ? " (last)" : ""));
+            state.mode = TABLE;
+            break;
+          case 3:
+            strm.msg = 'invalid block type';
+            state.mode = BAD;
+        }
+        //--- DROPBITS(2) ---//
+        hold >>>= 2;
+        bits -= 2;
+        //---//
+        break;
+      case STORED:
+        //--- BYTEBITS() ---// /* go to byte boundary */
+        hold >>>= bits & 7;
+        bits -= bits & 7;
+        //---//
+        //=== NEEDBITS(32); */
+        while (bits < 32) {
+          if (have === 0) { break inf_leave; }
+          have--;
+          hold += input[next++] << bits;
+          bits += 8;
+        }
+        //===//
+        if ((hold & 0xffff) !== ((hold >>> 16) ^ 0xffff)) {
+          strm.msg = 'invalid stored block lengths';
+          state.mode = BAD;
+          break;
+        }
+        state.length = hold & 0xffff;
+        //Tracev((stderr, "inflate:       stored length %u\n",
+        //        state.length));
+        //=== INITBITS();
+        hold = 0;
+        bits = 0;
+        //===//
+        state.mode = COPY_;
+        if (flush === Z_TREES) { break inf_leave; }
+        /* falls through */
+      case COPY_:
+        state.mode = COPY;
+        /* falls through */
+      case COPY:
+        copy = state.length;
+        if (copy) {
+          if (copy > have) { copy = have; }
+          if (copy > left) { copy = left; }
+          if (copy === 0) { break inf_leave; }
+          //--- zmemcpy(put, next, copy); ---
+          utils.arraySet(output, input, next, copy, put);
+          //---//
+          have -= copy;
+          next += copy;
+          left -= copy;
+          put += copy;
+          state.length -= copy;
+          break;
+        }
+        //Tracev((stderr, "inflate:       stored end\n"));
+        state.mode = TYPE;
+        break;
+      case TABLE:
+        //=== NEEDBITS(14); */
+        while (bits < 14) {
+          if (have === 0) { break inf_leave; }
+          have--;
+          hold += input[next++] << bits;
+          bits += 8;
+        }
+        //===//
+        state.nlen = (hold & 0x1f)/*BITS(5)*/ + 257;
+        //--- DROPBITS(5) ---//
+        hold >>>= 5;
+        bits -= 5;
+        //---//
+        state.ndist = (hold & 0x1f)/*BITS(5)*/ + 1;
+        //--- DROPBITS(5) ---//
+        hold >>>= 5;
+        bits -= 5;
+        //---//
+        state.ncode = (hold & 0x0f)/*BITS(4)*/ + 4;
+        //--- DROPBITS(4) ---//
+        hold >>>= 4;
+        bits -= 4;
+        //---//
+//#ifndef PKZIP_BUG_WORKAROUND
+        if (state.nlen > 286 || state.ndist > 30) {
+          strm.msg = 'too many length or distance symbols';
+          state.mode = BAD;
+          break;
+        }
+//#endif
+        //Tracev((stderr, "inflate:       table sizes ok\n"));
+        state.have = 0;
+        state.mode = LENLENS;
+        /* falls through */
+      case LENLENS:
+        while (state.have < state.ncode) {
+          //=== NEEDBITS(3);
+          while (bits < 3) {
+            if (have === 0) { break inf_leave; }
+            have--;
+            hold += input[next++] << bits;
+            bits += 8;
+          }
+          //===//
+          state.lens[order[state.have++]] = (hold & 0x07);//BITS(3);
+          //--- DROPBITS(3) ---//
+          hold >>>= 3;
+          bits -= 3;
+          //---//
+        }
+        while (state.have < 19) {
+          state.lens[order[state.have++]] = 0;
+        }
+        // We have separate tables & no pointers. 2 commented lines below not needed.
+        //state.next = state.codes;
+        //state.lencode = state.next;
+        // Switch to use dynamic table
+        state.lencode = state.lendyn;
+        state.lenbits = 7;
+
+        opts = { bits: state.lenbits };
+        ret = inflate_table(CODES, state.lens, 0, 19, state.lencode, 0, state.work, opts);
+        state.lenbits = opts.bits;
+
+        if (ret) {
+          strm.msg = 'invalid code lengths set';
+          state.mode = BAD;
+          break;
+        }
+        //Tracev((stderr, "inflate:       code lengths ok\n"));
+        state.have = 0;
+        state.mode = CODELENS;
+        /* falls through */
+      case CODELENS:
+        while (state.have < state.nlen + state.ndist) {
+          for (;;) {
+            here = state.lencode[hold & ((1 << state.lenbits) - 1)];/*BITS(state.lenbits)*/
+            here_bits = here >>> 24;
+            here_op = (here >>> 16) & 0xff;
+            here_val = here & 0xffff;
+
+            if ((here_bits) <= bits) { break; }
+            //--- PULLBYTE() ---//
+            if (have === 0) { break inf_leave; }
+            have--;
+            hold += input[next++] << bits;
+            bits += 8;
+            //---//
+          }
+          if (here_val < 16) {
+            //--- DROPBITS(here.bits) ---//
+            hold >>>= here_bits;
+            bits -= here_bits;
+            //---//
+            state.lens[state.have++] = here_val;
+          }
+          else {
+            if (here_val === 16) {
+              //=== NEEDBITS(here.bits + 2);
+              n = here_bits + 2;
+              while (bits < n) {
+                if (have === 0) { break inf_leave; }
+                have--;
+                hold += input[next++] << bits;
+                bits += 8;
+              }
+              //===//
+              //--- DROPBITS(here.bits) ---//
+              hold >>>= here_bits;
+              bits -= here_bits;
+              //---//
+              if (state.have === 0) {
+                strm.msg = 'invalid bit length repeat';
+                state.mode = BAD;
+                break;
+              }
+              len = state.lens[state.have - 1];
+              copy = 3 + (hold & 0x03);//BITS(2);
+              //--- DROPBITS(2) ---//
+              hold >>>= 2;
+              bits -= 2;
+              //---//
+            }
+            else if (here_val === 17) {
+              //=== NEEDBITS(here.bits + 3);
+              n = here_bits + 3;
+              while (bits < n) {
+                if (have === 0) { break inf_leave; }
+                have--;
+                hold += input[next++] << bits;
+                bits += 8;
+              }
+              //===//
+              //--- DROPBITS(here.bits) ---//
+              hold >>>= here_bits;
+              bits -= here_bits;
+              //---//
+              len = 0;
+              copy = 3 + (hold & 0x07);//BITS(3);
+              //--- DROPBITS(3) ---//
+              hold >>>= 3;
+              bits -= 3;
+              //---//
+            }
+            else {
+              //=== NEEDBITS(here.bits + 7);
+              n = here_bits + 7;
+              while (bits < n) {
+                if (have === 0) { break inf_leave; }
+                have--;
+                hold += input[next++] << bits;
+                bits += 8;
+              }
+              //===//
+              //--- DROPBITS(here.bits) ---//
+              hold >>>= here_bits;
+              bits -= here_bits;
+              //---//
+              len = 0;
+              copy = 11 + (hold & 0x7f);//BITS(7);
+              //--- DROPBITS(7) ---//
+              hold >>>= 7;
+              bits -= 7;
+              //---//
+            }
+            if (state.have + copy > state.nlen + state.ndist) {
+              strm.msg = 'invalid bit length repeat';
+              state.mode = BAD;
+              break;
+            }
+            while (copy--) {
+              state.lens[state.have++] = len;
+            }
+          }
+        }
+
+        /* handle error breaks in while */
+        if (state.mode === BAD) { break; }
+
+        /* check for end-of-block code (better have one) */
+        if (state.lens[256] === 0) {
+          strm.msg = 'invalid code -- missing end-of-block';
+          state.mode = BAD;
+          break;
+        }
+
+        /* build code tables -- note: do not change the lenbits or distbits
+           values here (9 and 6) without reading the comments in inftrees.h
+           concerning the ENOUGH constants, which depend on those values */
+        state.lenbits = 9;
+
+        opts = { bits: state.lenbits };
+        ret = inflate_table(LENS, state.lens, 0, state.nlen, state.lencode, 0, state.work, opts);
+        // We have separate tables & no pointers. 2 commented lines below not needed.
+        // state.next_index = opts.table_index;
+        state.lenbits = opts.bits;
+        // state.lencode = state.next;
+
+        if (ret) {
+          strm.msg = 'invalid literal/lengths set';
+          state.mode = BAD;
+          break;
+        }
+
+        state.distbits = 6;
+        //state.distcode.copy(state.codes);
+        // Switch to use dynamic table
+        state.distcode = state.distdyn;
+        opts = { bits: state.distbits };
+        ret = inflate_table(DISTS, state.lens, state.nlen, state.ndist, state.distcode, 0, state.work, opts);
+        // We have separate tables & no pointers. 2 commented lines below not needed.
+        // state.next_index = opts.table_index;
+        state.distbits = opts.bits;
+        // state.distcode = state.next;
+
+        if (ret) {
+          strm.msg = 'invalid distances set';
+          state.mode = BAD;
+          break;
+        }
+        //Tracev((stderr, 'inflate:       codes ok\n'));
+        state.mode = LEN_;
+        if (flush === Z_TREES) { break inf_leave; }
+        /* falls through */
+      case LEN_:
+        state.mode = LEN;
+        /* falls through */
+      case LEN:
+        if (have >= 6 && left >= 258) {
+          //--- RESTORE() ---
+          strm.next_out = put;
+          strm.avail_out = left;
+          strm.next_in = next;
+          strm.avail_in = have;
+          state.hold = hold;
+          state.bits = bits;
+          //---
+          inflate_fast(strm, _out);
+          //--- LOAD() ---
+          put = strm.next_out;
+          output = strm.output;
+          left = strm.avail_out;
+          next = strm.next_in;
+          input = strm.input;
+          have = strm.avail_in;
+          hold = state.hold;
+          bits = state.bits;
+          //---
+
+          if (state.mode === TYPE) {
+            state.back = -1;
+          }
+          break;
+        }
+        state.back = 0;
+        for (;;) {
+          here = state.lencode[hold & ((1 << state.lenbits) - 1)];  /*BITS(state.lenbits)*/
+          here_bits = here >>> 24;
+          here_op = (here >>> 16) & 0xff;
+          here_val = here & 0xffff;
+
+          if (here_bits <= bits) { break; }
+          //--- PULLBYTE() ---//
+          if (have === 0) { break inf_leave; }
+          have--;
+          hold += input[next++] << bits;
+          bits += 8;
+          //---//
+        }
+        if (here_op && (here_op & 0xf0) === 0) {
+          last_bits = here_bits;
+          last_op = here_op;
+          last_val = here_val;
+          for (;;) {
+            here = state.lencode[last_val +
+                    ((hold & ((1 << (last_bits + last_op)) - 1))/*BITS(last.bits + last.op)*/ >> last_bits)];
+            here_bits = here >>> 24;
+            here_op = (here >>> 16) & 0xff;
+            here_val = here & 0xffff;
+
+            if ((last_bits + here_bits) <= bits) { break; }
+            //--- PULLBYTE() ---//
+            if (have === 0) { break inf_leave; }
+            have--;
+            hold += input[next++] << bits;
+            bits += 8;
+            //---//
+          }
+          //--- DROPBITS(last.bits) ---//
+          hold >>>= last_bits;
+          bits -= last_bits;
+          //---//
+          state.back += last_bits;
+        }
+        //--- DROPBITS(here.bits) ---//
+        hold >>>= here_bits;
+        bits -= here_bits;
+        //---//
+        state.back += here_bits;
+        state.length = here_val;
+        if (here_op === 0) {
+          //Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
+          //        "inflate:         literal '%c'\n" :
+          //        "inflate:         literal 0x%02x\n", here.val));
+          state.mode = LIT;
+          break;
+        }
+        if (here_op & 32) {
+          //Tracevv((stderr, "inflate:         end of block\n"));
+          state.back = -1;
+          state.mode = TYPE;
+          break;
+        }
+        if (here_op & 64) {
+          strm.msg = 'invalid literal/length code';
+          state.mode = BAD;
+          break;
+        }
+        state.extra = here_op & 15;
+        state.mode = LENEXT;
+        /* falls through */
+      case LENEXT:
+        if (state.extra) {
+          //=== NEEDBITS(state.extra);
+          n = state.extra;
+          while (bits < n) {
+            if (have === 0) { break inf_leave; }
+            have--;
+            hold += input[next++] << bits;
+            bits += 8;
+          }
+          //===//
+          state.length += hold & ((1 << state.extra) - 1)/*BITS(state.extra)*/;
+          //--- DROPBITS(state.extra) ---//
+          hold >>>= state.extra;
+          bits -= state.extra;
+          //---//
+          state.back += state.extra;
+        }
+        //Tracevv((stderr, "inflate:         length %u\n", state.length));
+        state.was = state.length;
+        state.mode = DIST;
+        /* falls through */
+      case DIST:
+        for (;;) {
+          here = state.distcode[hold & ((1 << state.distbits) - 1)];/*BITS(state.distbits)*/
+          here_bits = here >>> 24;
+          here_op = (here >>> 16) & 0xff;
+          here_val = here & 0xffff;
+
+          if ((here_bits) <= bits) { break; }
+          //--- PULLBYTE() ---//
+          if (have === 0) { break inf_leave; }
+          have--;
+          hold += input[next++] << bits;
+          bits += 8;
+          //---//
+        }
+        if ((here_op & 0xf0) === 0) {
+          last_bits = here_bits;
+          last_op = here_op;
+          last_val = here_val;
+          for (;;) {
+            here = state.distcode[last_val +
+                    ((hold & ((1 << (last_bits + last_op)) - 1))/*BITS(last.bits + last.op)*/ >> last_bits)];
+            here_bits = here >>> 24;
+            here_op = (here >>> 16) & 0xff;
+            here_val = here & 0xffff;
+
+            if ((last_bits + here_bits) <= bits) { break; }
+            //--- PULLBYTE() ---//
+            if (have === 0) { break inf_leave; }
+            have--;
+            hold += input[next++] << bits;
+            bits += 8;
+            //---//
+          }
+          //--- DROPBITS(last.bits) ---//
+          hold >>>= last_bits;
+          bits -= last_bits;
+          //---//
+          state.back += last_bits;
+        }
+        //--- DROPBITS(here.bits) ---//
+        hold >>>= here_bits;
+        bits -= here_bits;
+        //---//
+        state.back += here_bits;
+        if (here_op & 64) {
+          strm.msg = 'invalid distance code';
+          state.mode = BAD;
+          break;
+        }
+        state.offset = here_val;
+        state.extra = (here_op) & 15;
+        state.mode = DISTEXT;
+        /* falls through */
+      case DISTEXT:
+        if (state.extra) {
+          //=== NEEDBITS(state.extra);
+          n = state.extra;
+          while (bits < n) {
+            if (have === 0) { break inf_leave; }
+            have--;
+            hold += input[next++] << bits;
+            bits += 8;
+          }
+          //===//
+          state.offset += hold & ((1 << state.extra) - 1)/*BITS(state.extra)*/;
+          //--- DROPBITS(state.extra) ---//
+          hold >>>= state.extra;
+          bits -= state.extra;
+          //---//
+          state.back += state.extra;
+        }
+//#ifdef INFLATE_STRICT
+        if (state.offset > state.dmax) {
+          strm.msg = 'invalid distance too far back';
+          state.mode = BAD;
+          break;
+        }
+//#endif
+        //Tracevv((stderr, "inflate:         distance %u\n", state.offset));
+        state.mode = MATCH;
+        /* falls through */
+      case MATCH:
+        if (left === 0) { break inf_leave; }
+        copy = _out - left;
+        if (state.offset > copy) {         /* copy from window */
+          copy = state.offset - copy;
+          if (copy > state.whave) {
+            if (state.sane) {
+              strm.msg = 'invalid distance too far back';
+              state.mode = BAD;
+              break;
+            }
+// (!) This block is disabled in zlib defaults,
+// don't enable it for binary compatibility
+//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+//          Trace((stderr, "inflate.c too far\n"));
+//          copy -= state.whave;
+//          if (copy > state.length) { copy = state.length; }
+//          if (copy > left) { copy = left; }
+//          left -= copy;
+//          state.length -= copy;
+//          do {
+//            output[put++] = 0;
+//          } while (--copy);
+//          if (state.length === 0) { state.mode = LEN; }
+//          break;
+//#endif
+          }
+          if (copy > state.wnext) {
+            copy -= state.wnext;
+            from = state.wsize - copy;
+          }
+          else {
+            from = state.wnext - copy;
+          }
+          if (copy > state.length) { copy = state.length; }
+          from_source = state.window;
+        }
+        else {                              /* copy from output */
+          from_source = output;
+          from = put - state.offset;
+          copy = state.length;
+        }
+        if (copy > left) { copy = left; }
+        left -= copy;
+        state.length -= copy;
+        do {
+          output[put++] = from_source[from++];
+        } while (--copy);
+        if (state.length === 0) { state.mode = LEN; }
+        break;
+      case LIT:
+        if (left === 0) { break inf_leave; }
+        output[put++] = state.length;
+        left--;
+        state.mode = LEN;
+        break;
+      case CHECK:
+        if (state.wrap) {
+          //=== NEEDBITS(32);
+          while (bits < 32) {
+            if (have === 0) { break inf_leave; }
+            have--;
+            // Use '|' instead of '+' to make sure that result is signed
+            hold |= input[next++] << bits;
+            bits += 8;
+          }
+          //===//
+          _out -= left;
+          strm.total_out += _out;
+          state.total += _out;
+          if (_out) {
+            strm.adler = state.check =
+                /*UPDATE(state.check, put - _out, _out);*/
+                (state.flags ? crc32(state.check, output, _out, put - _out) : adler32(state.check, output, _out, put - _out));
+
+          }
+          _out = left;
+          // NB: crc32 stored as signed 32-bit int, zswap32 returns signed too
+          if ((state.flags ? hold : zswap32(hold)) !== state.check) {
+            strm.msg = 'incorrect data check';
+            state.mode = BAD;
+            break;
+          }
+          //=== INITBITS();
+          hold = 0;
+          bits = 0;
+          //===//
+          //Tracev((stderr, "inflate:   check matches trailer\n"));
+        }
+        state.mode = LENGTH;
+        /* falls through */
+      case LENGTH:
+        if (state.wrap && state.flags) {
+          //=== NEEDBITS(32);
+          while (bits < 32) {
+            if (have === 0) { break inf_leave; }
+            have--;
+            hold += input[next++] << bits;
+            bits += 8;
+          }
+          //===//
+          if (hold !== (state.total & 0xffffffff)) {
+            strm.msg = 'incorrect length check';
+            state.mode = BAD;
+            break;
+          }
+          //=== INITBITS();
+          hold = 0;
+          bits = 0;
+          //===//
+          //Tracev((stderr, "inflate:   length matches trailer\n"));
+        }
+        state.mode = DONE;
+        /* falls through */
+      case DONE:
+        ret = Z_STREAM_END;
+        break inf_leave;
+      case BAD:
+        ret = Z_DATA_ERROR;
+        break inf_leave;
+      case MEM:
+        return Z_MEM_ERROR;
+      case SYNC:
+        /* falls through */
+      default:
+        return Z_STREAM_ERROR;
+    }
+  }
+
+  // inf_leave <- here is real place for "goto inf_leave", emulated via "break inf_leave"
+
+  /*
+     Return from inflate(), updating the total counts and the check value.
+     If there was no progress during the inflate() call, return a buffer
+     error.  Call updatewindow() to create and/or update the window state.
+     Note: a memory error from inflate() is non-recoverable.
+   */
+
+  //--- RESTORE() ---
+  strm.next_out = put;
+  strm.avail_out = left;
+  strm.next_in = next;
+  strm.avail_in = have;
+  state.hold = hold;
+  state.bits = bits;
+  //---
+
+  if (state.wsize || (_out !== strm.avail_out && state.mode < BAD &&
+                      (state.mode < CHECK || flush !== Z_FINISH))) {
+    if (updatewindow(strm, strm.output, strm.next_out, _out - strm.avail_out)) {
+      state.mode = MEM;
+      return Z_MEM_ERROR;
+    }
+  }
+  _in -= strm.avail_in;
+  _out -= strm.avail_out;
+  strm.total_in += _in;
+  strm.total_out += _out;
+  state.total += _out;
+  if (state.wrap && _out) {
+    strm.adler = state.check = /*UPDATE(state.check, strm.next_out - _out, _out);*/
+      (state.flags ? crc32(state.check, output, _out, strm.next_out - _out) : adler32(state.check, output, _out, strm.next_out - _out));
+  }
+  strm.data_type = state.bits + (state.last ? 64 : 0) +
+                    (state.mode === TYPE ? 128 : 0) +
+                    (state.mode === LEN_ || state.mode === COPY_ ? 256 : 0);
+  if (((_in === 0 && _out === 0) || flush === Z_FINISH) && ret === Z_OK) {
+    ret = Z_BUF_ERROR;
+  }
+  return ret;
+}
+
+function inflateEnd(strm) {
+
+  if (!strm || !strm.state /*|| strm->zfree == (free_func)0*/) {
+    return Z_STREAM_ERROR;
+  }
+
+  var state = strm.state;
+  if (state.window) {
+    state.window = null;
+  }
+  strm.state = null;
+  return Z_OK;
+}
+
+function inflateGetHeader(strm, head) {
+  var state;
+
+  /* check state */
+  if (!strm || !strm.state) { return Z_STREAM_ERROR; }
+  state = strm.state;
+  if ((state.wrap & 2) === 0) { return Z_STREAM_ERROR; }
+
+  /* save header structure */
+  state.head = head;
+  head.done = false;
+  return Z_OK;
+}
+
+function inflateSetDictionary(strm, dictionary) {
+  var dictLength = dictionary.length;
+
+  var state;
+  var dictid;
+  var ret;
+
+  /* check state */
+  if (!strm /* == Z_NULL */ || !strm.state /* == Z_NULL */) { return Z_STREAM_ERROR; }
+  state = strm.state;
+
+  if (state.wrap !== 0 && state.mode !== DICT) {
+    return Z_STREAM_ERROR;
+  }
+
+  /* check for correct dictionary identifier */
+  if (state.mode === DICT) {
+    dictid = 1; /* adler32(0, null, 0)*/
+    /* dictid = adler32(dictid, dictionary, dictLength); */
+    dictid = adler32(dictid, dictionary, dictLength, 0);
+    if (dictid !== state.check) {
+      return Z_DATA_ERROR;
+    }
+  }
+  /* copy dictionary to window using updatewindow(), which will amend the
+   existing dictionary if appropriate */
+  ret = updatewindow(strm, dictionary, dictLength, dictLength);
+  if (ret) {
+    state.mode = MEM;
+    return Z_MEM_ERROR;
+  }
+  state.havedict = 1;
+  // Tracev((stderr, "inflate:   dictionary set\n"));
+  return Z_OK;
+}
+
+exports.inflateReset = inflateReset;
+exports.inflateReset2 = inflateReset2;
+exports.inflateResetKeep = inflateResetKeep;
+exports.inflateInit = inflateInit;
+exports.inflateInit2 = inflateInit2;
+exports.inflate = inflate;
+exports.inflateEnd = inflateEnd;
+exports.inflateGetHeader = inflateGetHeader;
+exports.inflateSetDictionary = inflateSetDictionary;
+exports.inflateInfo = 'pako inflate (from Nodeca project)';
+
+/* Not implemented
+exports.inflateCopy = inflateCopy;
+exports.inflateGetDictionary = inflateGetDictionary;
+exports.inflateMark = inflateMark;
+exports.inflatePrime = inflatePrime;
+exports.inflateSync = inflateSync;
+exports.inflateSyncPoint = inflateSyncPoint;
+exports.inflateUndermine = inflateUndermine;
+*/
+
+},{"../utils/common":50,"./adler32":52,"./crc32":54,"./inffast":57,"./inftrees":59}],59:[function(require,module,exports){
+'use strict';
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+var utils = require('../utils/common');
+
+var MAXBITS = 15;
+var ENOUGH_LENS = 852;
+var ENOUGH_DISTS = 592;
+//var ENOUGH = (ENOUGH_LENS+ENOUGH_DISTS);
+
+var CODES = 0;
+var LENS = 1;
+var DISTS = 2;
+
+var lbase = [ /* Length codes 257..285 base */
+  3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
+  35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0
+];
+
+var lext = [ /* Length codes 257..285 extra */
+  16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
+  19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 72, 78
+];
+
+var dbase = [ /* Distance codes 0..29 base */
+  1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
+  257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
+  8193, 12289, 16385, 24577, 0, 0
+];
+
+var dext = [ /* Distance codes 0..29 extra */
+  16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22,
+  23, 23, 24, 24, 25, 25, 26, 26, 27, 27,
+  28, 28, 29, 29, 64, 64
+];
+
+module.exports = function inflate_table(type, lens, lens_index, codes, table, table_index, work, opts)
+{
+  var bits = opts.bits;
+      //here = opts.here; /* table entry for duplication */
+
+  var len = 0;               /* a code's length in bits */
+  var sym = 0;               /* index of code symbols */
+  var min = 0, max = 0;          /* minimum and maximum code lengths */
+  var root = 0;              /* number of index bits for root table */
+  var curr = 0;              /* number of index bits for current table */
+  var drop = 0;              /* code bits to drop for sub-table */
+  var left = 0;                   /* number of prefix codes available */
+  var used = 0;              /* code entries in table used */
+  var huff = 0;              /* Huffman code */
+  var incr;              /* for incrementing code, index */
+  var fill;              /* index for replicating entries */
+  var low;               /* low bits for current root entry */
+  var mask;              /* mask for low root bits */
+  var next;             /* next available space in table */
+  var base = null;     /* base value table to use */
+  var base_index = 0;
+//  var shoextra;    /* extra bits table to use */
+  var end;                    /* use base and extra for symbol > end */
+  var count = new utils.Buf16(MAXBITS + 1); //[MAXBITS+1];    /* number of codes of each length */
+  var offs = new utils.Buf16(MAXBITS + 1); //[MAXBITS+1];     /* offsets in table for each length */
+  var extra = null;
+  var extra_index = 0;
+
+  var here_bits, here_op, here_val;
+
+  /*
+   Process a set of code lengths to create a canonical Huffman code.  The
+   code lengths are lens[0..codes-1].  Each length corresponds to the
+   symbols 0..codes-1.  The Huffman code is generated by first sorting the
+   symbols by length from short to long, and retaining the symbol order
+   for codes with equal lengths.  Then the code starts with all zero bits
+   for the first code of the shortest length, and the codes are integer
+   increments for the same length, and zeros are appended as the length
+   increases.  For the deflate format, these bits are stored backwards
+   from their more natural integer increment ordering, and so when the
+   decoding tables are built in the large loop below, the integer codes
+   are incremented backwards.
+
+   This routine assumes, but does not check, that all of the entries in
+   lens[] are in the range 0..MAXBITS.  The caller must assure this.
+   1..MAXBITS is interpreted as that code length.  zero means that that
+   symbol does not occur in this code.
+
+   The codes are sorted by computing a count of codes for each length,
+   creating from that a table of starting indices for each length in the
+   sorted table, and then entering the symbols in order in the sorted
+   table.  The sorted table is work[], with that space being provided by
+   the caller.
+
+   The length counts are used for other purposes as well, i.e. finding
+   the minimum and maximum length codes, determining if there are any
+   codes at all, checking for a valid set of lengths, and looking ahead
+   at length counts to determine sub-table sizes when building the
+   decoding tables.
+   */
+
+  /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
+  for (len = 0; len <= MAXBITS; len++) {
+    count[len] = 0;
+  }
+  for (sym = 0; sym < codes; sym++) {
+    count[lens[lens_index + sym]]++;
+  }
+
+  /* bound code lengths, force root to be within code lengths */
+  root = bits;
+  for (max = MAXBITS; max >= 1; max--) {
+    if (count[max] !== 0) { break; }
+  }
+  if (root > max) {
+    root = max;
+  }
+  if (max === 0) {                     /* no symbols to code at all */
+    //table.op[opts.table_index] = 64;  //here.op = (var char)64;    /* invalid code marker */
+    //table.bits[opts.table_index] = 1;   //here.bits = (var char)1;
+    //table.val[opts.table_index++] = 0;   //here.val = (var short)0;
+    table[table_index++] = (1 << 24) | (64 << 16) | 0;
+
+
+    //table.op[opts.table_index] = 64;
+    //table.bits[opts.table_index] = 1;
+    //table.val[opts.table_index++] = 0;
+    table[table_index++] = (1 << 24) | (64 << 16) | 0;
+
+    opts.bits = 1;
+    return 0;     /* no symbols, but wait for decoding to report error */
+  }
+  for (min = 1; min < max; min++) {
+    if (count[min] !== 0) { break; }
+  }
+  if (root < min) {
+    root = min;
+  }
+
+  /* check for an over-subscribed or incomplete set of lengths */
+  left = 1;
+  for (len = 1; len <= MAXBITS; len++) {
+    left <<= 1;
+    left -= count[len];
+    if (left < 0) {
+      return -1;
+    }        /* over-subscribed */
+  }
+  if (left > 0 && (type === CODES || max !== 1)) {
+    return -1;                      /* incomplete set */
+  }
+
+  /* generate offsets into symbol table for each length for sorting */
+  offs[1] = 0;
+  for (len = 1; len < MAXBITS; len++) {
+    offs[len + 1] = offs[len] + count[len];
+  }
+
+  /* sort symbols by length, by symbol order within each length */
+  for (sym = 0; sym < codes; sym++) {
+    if (lens[lens_index + sym] !== 0) {
+      work[offs[lens[lens_index + sym]]++] = sym;
+    }
+  }
+
+  /*
+   Create and fill in decoding tables.  In this loop, the table being
+   filled is at next and has curr index bits.  The code being used is huff
+   with length len.  That code is converted to an index by dropping drop
+   bits off of the bottom.  For codes where len is less than drop + curr,
+   those top drop + curr - len bits are incremented through all values to
+   fill the table with replicated entries.
+
+   root is the number of index bits for the root table.  When len exceeds
+   root, sub-tables are created pointed to by the root entry with an index
+   of the low root bits of huff.  This is saved in low to check for when a
+   new sub-table should be started.  drop is zero when the root table is
+   being filled, and drop is root when sub-tables are being filled.
+
+   When a new sub-table is needed, it is necessary to look ahead in the
+   code lengths to determine what size sub-table is needed.  The length
+   counts are used for this, and so count[] is decremented as codes are
+   entered in the tables.
+
+   used keeps track of how many table entries have been allocated from the
+   provided *table space.  It is checked for LENS and DIST tables against
+   the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
+   the initial root table size constants.  See the comments in inftrees.h
+   for more information.
+
+   sym increments through all symbols, and the loop terminates when
+   all codes of length max, i.e. all codes, have been processed.  This
+   routine permits incomplete codes, so another loop after this one fills
+   in the rest of the decoding tables with invalid code markers.
+   */
+
+  /* set up for code type */
+  // poor man optimization - use if-else instead of switch,
+  // to avoid deopts in old v8
+  if (type === CODES) {
+    base = extra = work;    /* dummy value--not used */
+    end = 19;
+
+  } else if (type === LENS) {
+    base = lbase;
+    base_index -= 257;
+    extra = lext;
+    extra_index -= 257;
+    end = 256;
+
+  } else {                    /* DISTS */
+    base = dbase;
+    extra = dext;
+    end = -1;
+  }
+
+  /* initialize opts for loop */
+  huff = 0;                   /* starting code */
+  sym = 0;                    /* starting code symbol */
+  len = min;                  /* starting code length */
+  next = table_index;              /* current table to fill in */
+  curr = root;                /* current table index bits */
+  drop = 0;                   /* current bits to drop from code for index */
+  low = -1;                   /* trigger new sub-table when len > root */
+  used = 1 << root;          /* use root table entries */
+  mask = used - 1;            /* mask for comparing low */
+
+  /* check available table space */
+  if ((type === LENS && used > ENOUGH_LENS) ||
+    (type === DISTS && used > ENOUGH_DISTS)) {
+    return 1;
+  }
+
+  /* process all codes and make table entries */
+  for (;;) {
+    /* create table entry */
+    here_bits = len - drop;
+    if (work[sym] < end) {
+      here_op = 0;
+      here_val = work[sym];
+    }
+    else if (work[sym] > end) {
+      here_op = extra[extra_index + work[sym]];
+      here_val = base[base_index + work[sym]];
+    }
+    else {
+      here_op = 32 + 64;         /* end of block */
+      here_val = 0;
+    }
+
+    /* replicate for those indices with low len bits equal to huff */
+    incr = 1 << (len - drop);
+    fill = 1 << curr;
+    min = fill;                 /* save offset to next table */
+    do {
+      fill -= incr;
+      table[next + (huff >> drop) + fill] = (here_bits << 24) | (here_op << 16) | here_val |0;
+    } while (fill !== 0);
+
+    /* backwards increment the len-bit code huff */
+    incr = 1 << (len - 1);
+    while (huff & incr) {
+      incr >>= 1;
+    }
+    if (incr !== 0) {
+      huff &= incr - 1;
+      huff += incr;
+    } else {
+      huff = 0;
+    }
+
+    /* go to next symbol, update count, len */
+    sym++;
+    if (--count[len] === 0) {
+      if (len === max) { break; }
+      len = lens[lens_index + work[sym]];
+    }
+
+    /* create new sub-table if needed */
+    if (len > root && (huff & mask) !== low) {
+      /* if first time, transition to sub-tables */
+      if (drop === 0) {
+        drop = root;
+      }
+
+      /* increment past last table */
+      next += min;            /* here min is 1 << curr */
+
+      /* determine length of next table */
+      curr = len - drop;
+      left = 1 << curr;
+      while (curr + drop < max) {
+        left -= count[curr + drop];
+        if (left <= 0) { break; }
+        curr++;
+        left <<= 1;
+      }
+
+      /* check for enough space */
+      used += 1 << curr;
+      if ((type === LENS && used > ENOUGH_LENS) ||
+        (type === DISTS && used > ENOUGH_DISTS)) {
+        return 1;
+      }
+
+      /* point entry in root table to sub-table */
+      low = huff & mask;
+      /*table.op[low] = curr;
+      table.bits[low] = root;
+      table.val[low] = next - opts.table_index;*/
+      table[low] = (root << 24) | (curr << 16) | (next - table_index) |0;
+    }
+  }
+
+  /* fill in remaining table entry if code is incomplete (guaranteed to have
+   at most one remaining entry, since if the code is incomplete, the
+   maximum code length that was allowed to get this far is one bit) */
+  if (huff !== 0) {
+    //table.op[next + huff] = 64;            /* invalid code marker */
+    //table.bits[next + huff] = len - drop;
+    //table.val[next + huff] = 0;
+    table[next + huff] = ((len - drop) << 24) | (64 << 16) |0;
+  }
+
+  /* set return parameters */
+  //opts.table_index += used;
+  opts.bits = root;
+  return 0;
+};
+
+},{"../utils/common":50}],60:[function(require,module,exports){
+'use strict';
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+module.exports = {
+  2:      'need dictionary',     /* Z_NEED_DICT       2  */
+  1:      'stream end',          /* Z_STREAM_END      1  */
+  0:      '',                    /* Z_OK              0  */
+  '-1':   'file error',          /* Z_ERRNO         (-1) */
+  '-2':   'stream error',        /* Z_STREAM_ERROR  (-2) */
+  '-3':   'data error',          /* Z_DATA_ERROR    (-3) */
+  '-4':   'insufficient memory', /* Z_MEM_ERROR     (-4) */
+  '-5':   'buffer error',        /* Z_BUF_ERROR     (-5) */
+  '-6':   'incompatible version' /* Z_VERSION_ERROR (-6) */
+};
+
+},{}],61:[function(require,module,exports){
+'use strict';
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+/* eslint-disable space-unary-ops */
+
+var utils = require('../utils/common');
+
+/* Public constants ==========================================================*/
+/* ===========================================================================*/
+
+
+//var Z_FILTERED          = 1;
+//var Z_HUFFMAN_ONLY      = 2;
+//var Z_RLE               = 3;
+var Z_FIXED               = 4;
+//var Z_DEFAULT_STRATEGY  = 0;
+
+/* Possible values of the data_type field (though see inflate()) */
+var Z_BINARY              = 0;
+var Z_TEXT                = 1;
+//var Z_ASCII             = 1; // = Z_TEXT
+var Z_UNKNOWN             = 2;
+
+/*============================================================================*/
+
+
+function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } }
+
+// From zutil.h
+
+var STORED_BLOCK = 0;
+var STATIC_TREES = 1;
+var DYN_TREES    = 2;
+/* The three kinds of block type */
+
+var MIN_MATCH    = 3;
+var MAX_MATCH    = 258;
+/* The minimum and maximum match lengths */
+
+// From deflate.h
+/* ===========================================================================
+ * Internal compression state.
+ */
+
+var LENGTH_CODES  = 29;
+/* number of length codes, not counting the special END_BLOCK code */
+
+var LITERALS      = 256;
+/* number of literal bytes 0..255 */
+
+var L_CODES       = LITERALS + 1 + LENGTH_CODES;
+/* number of Literal or Length codes, including the END_BLOCK code */
+
+var D_CODES       = 30;
+/* number of distance codes */
+
+var BL_CODES      = 19;
+/* number of codes used to transfer the bit lengths */
+
+var HEAP_SIZE     = 2 * L_CODES + 1;
+/* maximum heap size */
+
+var MAX_BITS      = 15;
+/* All codes must not exceed MAX_BITS bits */
+
+var Buf_size      = 16;
+/* size of bit buffer in bi_buf */
+
+
+/* ===========================================================================
+ * Constants
+ */
+
+var MAX_BL_BITS = 7;
+/* Bit length codes must not exceed MAX_BL_BITS bits */
+
+var END_BLOCK   = 256;
+/* end of block literal code */
+
+var REP_3_6     = 16;
+/* repeat previous bit length 3-6 times (2 bits of repeat count) */
+
+var REPZ_3_10   = 17;
+/* repeat a zero length 3-10 times  (3 bits of repeat count) */
+
+var REPZ_11_138 = 18;
+/* repeat a zero length 11-138 times  (7 bits of repeat count) */
+
+/* eslint-disable comma-spacing,array-bracket-spacing */
+var extra_lbits =   /* extra bits for each length code */
+  [0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0];
+
+var extra_dbits =   /* extra bits for each distance code */
+  [0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13];
+
+var extra_blbits =  /* extra bits for each bit length code */
+  [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7];
+
+var bl_order =
+  [16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15];
+/* eslint-enable comma-spacing,array-bracket-spacing */
+
+/* The lengths of the bit length codes are sent in order of decreasing
+ * probability, to avoid transmitting the lengths for unused bit length codes.
+ */
+
+/* ===========================================================================
+ * Local data. These are initialized only once.
+ */
+
+// We pre-fill arrays with 0 to avoid uninitialized gaps
+
+var DIST_CODE_LEN = 512; /* see definition of array dist_code below */
+
+// !!!! Use flat array instead of structure, Freq = i*2, Len = i*2+1
+var static_ltree  = new Array((L_CODES + 2) * 2);
+zero(static_ltree);
+/* The static literal tree. Since the bit lengths are imposed, there is no
+ * need for the L_CODES extra codes used during heap construction. However
+ * The codes 286 and 287 are needed to build a canonical tree (see _tr_init
+ * below).
+ */
+
+var static_dtree  = new Array(D_CODES * 2);
+zero(static_dtree);
+/* The static distance tree. (Actually a trivial tree since all codes use
+ * 5 bits.)
+ */
+
+var _dist_code    = new Array(DIST_CODE_LEN);
+zero(_dist_code);
+/* Distance codes. The first 256 values correspond to the distances
+ * 3 .. 258, the last 256 values correspond to the top 8 bits of
+ * the 15 bit distances.
+ */
+
+var _length_code  = new Array(MAX_MATCH - MIN_MATCH + 1);
+zero(_length_code);
+/* length code for each normalized match length (0 == MIN_MATCH) */
+
+var base_length   = new Array(LENGTH_CODES);
+zero(base_length);
+/* First normalized length for each code (0 = MIN_MATCH) */
+
+var base_dist     = new Array(D_CODES);
+zero(base_dist);
+/* First normalized distance for each code (0 = distance of 1) */
+
+
+function StaticTreeDesc(static_tree, extra_bits, extra_base, elems, max_length) {
+
+  this.static_tree  = static_tree;  /* static tree or NULL */
+  this.extra_bits   = extra_bits;   /* extra bits for each code or NULL */
+  this.extra_base   = extra_base;   /* base index for extra_bits */
+  this.elems        = elems;        /* max number of elements in the tree */
+  this.max_length   = max_length;   /* max bit length for the codes */
+
+  // show if `static_tree` has data or dummy - needed for monomorphic objects
+  this.has_stree    = static_tree && static_tree.length;
+}
+
+
+var static_l_desc;
+var static_d_desc;
+var static_bl_desc;
+
+
+function TreeDesc(dyn_tree, stat_desc) {
+  this.dyn_tree = dyn_tree;     /* the dynamic tree */
+  this.max_code = 0;            /* largest code with non zero frequency */
+  this.stat_desc = stat_desc;   /* the corresponding static tree */
+}
+
+
+
+function d_code(dist) {
+  return dist < 256 ? _dist_code[dist] : _dist_code[256 + (dist >>> 7)];
+}
+
+
+/* ===========================================================================
+ * Output a short LSB first on the stream.
+ * IN assertion: there is enough room in pendingBuf.
+ */
+function put_short(s, w) {
+//    put_byte(s, (uch)((w) & 0xff));
+//    put_byte(s, (uch)((ush)(w) >> 8));
+  s.pending_buf[s.pending++] = (w) & 0xff;
+  s.pending_buf[s.pending++] = (w >>> 8) & 0xff;
+}
+
+
+/* ===========================================================================
+ * Send a value on a given number of bits.
+ * IN assertion: length <= 16 and value fits in length bits.
+ */
+function send_bits(s, value, length) {
+  if (s.bi_valid > (Buf_size - length)) {
+    s.bi_buf |= (value << s.bi_valid) & 0xffff;
+    put_short(s, s.bi_buf);
+    s.bi_buf = value >> (Buf_size - s.bi_valid);
+    s.bi_valid += length - Buf_size;
+  } else {
+    s.bi_buf |= (value << s.bi_valid) & 0xffff;
+    s.bi_valid += length;
+  }
+}
+
+
+function send_code(s, c, tree) {
+  send_bits(s, tree[c * 2]/*.Code*/, tree[c * 2 + 1]/*.Len*/);
+}
+
+
+/* ===========================================================================
+ * Reverse the first len bits of a code, using straightforward code (a faster
+ * method would use a table)
+ * IN assertion: 1 <= len <= 15
+ */
+function bi_reverse(code, len) {
+  var res = 0;
+  do {
+    res |= code & 1;
+    code >>>= 1;
+    res <<= 1;
+  } while (--len > 0);
+  return res >>> 1;
+}
+
+
+/* ===========================================================================
+ * Flush the bit buffer, keeping at most 7 bits in it.
+ */
+function bi_flush(s) {
+  if (s.bi_valid === 16) {
+    put_short(s, s.bi_buf);
+    s.bi_buf = 0;
+    s.bi_valid = 0;
+
+  } else if (s.bi_valid >= 8) {
+    s.pending_buf[s.pending++] = s.bi_buf & 0xff;
+    s.bi_buf >>= 8;
+    s.bi_valid -= 8;
+  }
+}
+
+
+/* ===========================================================================
+ * Compute the optimal bit lengths for a tree and update the total bit length
+ * for the current block.
+ * IN assertion: the fields freq and dad are set, heap[heap_max] and
+ *    above are the tree nodes sorted by increasing frequency.
+ * OUT assertions: the field len is set to the optimal bit length, the
+ *     array bl_count contains the frequencies for each bit length.
+ *     The length opt_len is updated; static_len is also updated if stree is
+ *     not null.
+ */
+function gen_bitlen(s, desc)
+//    deflate_state *s;
+//    tree_desc *desc;    /* the tree descriptor */
+{
+  var tree            = desc.dyn_tree;
+  var max_code        = desc.max_code;
+  var stree           = desc.stat_desc.static_tree;
+  var has_stree       = desc.stat_desc.has_stree;
+  var extra           = desc.stat_desc.extra_bits;
+  var base            = desc.stat_desc.extra_base;
+  var max_length      = desc.stat_desc.max_length;
+  var h;              /* heap index */
+  var n, m;           /* iterate over the tree elements */
+  var bits;           /* bit length */
+  var xbits;          /* extra bits */
+  var f;              /* frequency */
+  var overflow = 0;   /* number of elements with bit length too large */
+
+  for (bits = 0; bits <= MAX_BITS; bits++) {
+    s.bl_count[bits] = 0;
+  }
+
+  /* In a first pass, compute the optimal bit lengths (which may
+   * overflow in the case of the bit length tree).
+   */
+  tree[s.heap[s.heap_max] * 2 + 1]/*.Len*/ = 0; /* root of the heap */
+
+  for (h = s.heap_max + 1; h < HEAP_SIZE; h++) {
+    n = s.heap[h];
+    bits = tree[tree[n * 2 + 1]/*.Dad*/ * 2 + 1]/*.Len*/ + 1;
+    if (bits > max_length) {
+      bits = max_length;
+      overflow++;
+    }
+    tree[n * 2 + 1]/*.Len*/ = bits;
+    /* We overwrite tree[n].Dad which is no longer needed */
+
+    if (n > max_code) { continue; } /* not a leaf node */
+
+    s.bl_count[bits]++;
+    xbits = 0;
+    if (n >= base) {
+      xbits = extra[n - base];
+    }
+    f = tree[n * 2]/*.Freq*/;
+    s.opt_len += f * (bits + xbits);
+    if (has_stree) {
+      s.static_len += f * (stree[n * 2 + 1]/*.Len*/ + xbits);
+    }
+  }
+  if (overflow === 0) { return; }
+
+  // Trace((stderr,"\nbit length overflow\n"));
+  /* This happens for example on obj2 and pic of the Calgary corpus */
+
+  /* Find the first bit length which could increase: */
+  do {
+    bits = max_length - 1;
+    while (s.bl_count[bits] === 0) { bits--; }
+    s.bl_count[bits]--;      /* move one leaf down the tree */
+    s.bl_count[bits + 1] += 2; /* move one overflow item as its brother */
+    s.bl_count[max_length]--;
+    /* The brother of the overflow item also moves one step up,
+     * but this does not affect bl_count[max_length]
+     */
+    overflow -= 2;
+  } while (overflow > 0);
+
+  /* Now recompute all bit lengths, scanning in increasing frequency.
+   * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
+   * lengths instead of fixing only the wrong ones. This idea is taken
+   * from 'ar' written by Haruhiko Okumura.)
+   */
+  for (bits = max_length; bits !== 0; bits--) {
+    n = s.bl_count[bits];
+    while (n !== 0) {
+      m = s.heap[--h];
+      if (m > max_code) { continue; }
+      if (tree[m * 2 + 1]/*.Len*/ !== bits) {
+        // Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
+        s.opt_len += (bits - tree[m * 2 + 1]/*.Len*/) * tree[m * 2]/*.Freq*/;
+        tree[m * 2 + 1]/*.Len*/ = bits;
+      }
+      n--;
+    }
+  }
+}
+
+
+/* ===========================================================================
+ * Generate the codes for a given tree and bit counts (which need not be
+ * optimal).
+ * IN assertion: the array bl_count contains the bit length statistics for
+ * the given tree and the field len is set for all tree elements.
+ * OUT assertion: the field code is set for all tree elements of non
+ *     zero code length.
+ */
+function gen_codes(tree, max_code, bl_count)
+//    ct_data *tree;             /* the tree to decorate */
+//    int max_code;              /* largest code with non zero frequency */
+//    ushf *bl_count;            /* number of codes at each bit length */
+{
+  var next_code = new Array(MAX_BITS + 1); /* next code value for each bit length */
+  var code = 0;              /* running code value */
+  var bits;                  /* bit index */
+  var n;                     /* code index */
+
+  /* The distribution counts are first used to generate the code values
+   * without bit reversal.
+   */
+  for (bits = 1; bits <= MAX_BITS; bits++) {
+    next_code[bits] = code = (code + bl_count[bits - 1]) << 1;
+  }
+  /* Check that the bit counts in bl_count are consistent. The last code
+   * must be all ones.
+   */
+  //Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
+  //        "inconsistent bit counts");
+  //Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
+
+  for (n = 0;  n <= max_code; n++) {
+    var len = tree[n * 2 + 1]/*.Len*/;
+    if (len === 0) { continue; }
+    /* Now reverse the bits */
+    tree[n * 2]/*.Code*/ = bi_reverse(next_code[len]++, len);
+
+    //Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
+    //     n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
+  }
+}
+
+
+/* ===========================================================================
+ * Initialize the various 'constant' tables.
+ */
+function tr_static_init() {
+  var n;        /* iterates over tree elements */
+  var bits;     /* bit counter */
+  var length;   /* length value */
+  var code;     /* code value */
+  var dist;     /* distance index */
+  var bl_count = new Array(MAX_BITS + 1);
+  /* number of codes at each bit length for an optimal tree */
+
+  // do check in _tr_init()
+  //if (static_init_done) return;
+
+  /* For some embedded targets, global variables are not initialized: */
+/*#ifdef NO_INIT_GLOBAL_POINTERS
+  static_l_desc.static_tree = static_ltree;
+  static_l_desc.extra_bits = extra_lbits;
+  static_d_desc.static_tree = static_dtree;
+  static_d_desc.extra_bits = extra_dbits;
+  static_bl_desc.extra_bits = extra_blbits;
+#endif*/
+
+  /* Initialize the mapping length (0..255) -> length code (0..28) */
+  length = 0;
+  for (code = 0; code < LENGTH_CODES - 1; code++) {
+    base_length[code] = length;
+    for (n = 0; n < (1 << extra_lbits[code]); n++) {
+      _length_code[length++] = code;
+    }
+  }
+  //Assert (length == 256, "tr_static_init: length != 256");
+  /* Note that the length 255 (match length 258) can be represented
+   * in two different ways: code 284 + 5 bits or code 285, so we
+   * overwrite length_code[255] to use the best encoding:
+   */
+  _length_code[length - 1] = code;
+
+  /* Initialize the mapping dist (0..32K) -> dist code (0..29) */
+  dist = 0;
+  for (code = 0; code < 16; code++) {
+    base_dist[code] = dist;
+    for (n = 0; n < (1 << extra_dbits[code]); n++) {
+      _dist_code[dist++] = code;
+    }
+  }
+  //Assert (dist == 256, "tr_static_init: dist != 256");
+  dist >>= 7; /* from now on, all distances are divided by 128 */
+  for (; code < D_CODES; code++) {
+    base_dist[code] = dist << 7;
+    for (n = 0; n < (1 << (extra_dbits[code] - 7)); n++) {
+      _dist_code[256 + dist++] = code;
+    }
+  }
+  //Assert (dist == 256, "tr_static_init: 256+dist != 512");
+
+  /* Construct the codes of the static literal tree */
+  for (bits = 0; bits <= MAX_BITS; bits++) {
+    bl_count[bits] = 0;
+  }
+
+  n = 0;
+  while (n <= 143) {
+    static_ltree[n * 2 + 1]/*.Len*/ = 8;
+    n++;
+    bl_count[8]++;
+  }
+  while (n <= 255) {
+    static_ltree[n * 2 + 1]/*.Len*/ = 9;
+    n++;
+    bl_count[9]++;
+  }
+  while (n <= 279) {
+    static_ltree[n * 2 + 1]/*.Len*/ = 7;
+    n++;
+    bl_count[7]++;
+  }
+  while (n <= 287) {
+    static_ltree[n * 2 + 1]/*.Len*/ = 8;
+    n++;
+    bl_count[8]++;
+  }
+  /* Codes 286 and 287 do not exist, but we must include them in the
+   * tree construction to get a canonical Huffman tree (longest code
+   * all ones)
+   */
+  gen_codes(static_ltree, L_CODES + 1, bl_count);
+
+  /* The static distance tree is trivial: */
+  for (n = 0; n < D_CODES; n++) {
+    static_dtree[n * 2 + 1]/*.Len*/ = 5;
+    static_dtree[n * 2]/*.Code*/ = bi_reverse(n, 5);
+  }
+
+  // Now data ready and we can init static trees
+  static_l_desc = new StaticTreeDesc(static_ltree, extra_lbits, LITERALS + 1, L_CODES, MAX_BITS);
+  static_d_desc = new StaticTreeDesc(static_dtree, extra_dbits, 0,          D_CODES, MAX_BITS);
+  static_bl_desc = new StaticTreeDesc(new Array(0), extra_blbits, 0,         BL_CODES, MAX_BL_BITS);
+
+  //static_init_done = true;
+}
+
+
+/* ===========================================================================
+ * Initialize a new block.
+ */
+function init_block(s) {
+  var n; /* iterates over tree elements */
+
+  /* Initialize the trees. */
+  for (n = 0; n < L_CODES;  n++) { s.dyn_ltree[n * 2]/*.Freq*/ = 0; }
+  for (n = 0; n < D_CODES;  n++) { s.dyn_dtree[n * 2]/*.Freq*/ = 0; }
+  for (n = 0; n < BL_CODES; n++) { s.bl_tree[n * 2]/*.Freq*/ = 0; }
+
+  s.dyn_ltree[END_BLOCK * 2]/*.Freq*/ = 1;
+  s.opt_len = s.static_len = 0;
+  s.last_lit = s.matches = 0;
+}
+
+
+/* ===========================================================================
+ * Flush the bit buffer and align the output on a byte boundary
+ */
+function bi_windup(s)
+{
+  if (s.bi_valid > 8) {
+    put_short(s, s.bi_buf);
+  } else if (s.bi_valid > 0) {
+    //put_byte(s, (Byte)s->bi_buf);
+    s.pending_buf[s.pending++] = s.bi_buf;
+  }
+  s.bi_buf = 0;
+  s.bi_valid = 0;
+}
+
+/* ===========================================================================
+ * Copy a stored block, storing first the length and its
+ * one's complement if requested.
+ */
+function copy_block(s, buf, len, header)
+//DeflateState *s;
+//charf    *buf;    /* the input data */
+//unsigned len;     /* its length */
+//int      header;  /* true if block header must be written */
+{
+  bi_windup(s);        /* align on byte boundary */
+
+  if (header) {
+    put_short(s, len);
+    put_short(s, ~len);
+  }
+//  while (len--) {
+//    put_byte(s, *buf++);
+//  }
+  utils.arraySet(s.pending_buf, s.window, buf, len, s.pending);
+  s.pending += len;
+}
+
+/* ===========================================================================
+ * Compares to subtrees, using the tree depth as tie breaker when
+ * the subtrees have equal frequency. This minimizes the worst case length.
+ */
+function smaller(tree, n, m, depth) {
+  var _n2 = n * 2;
+  var _m2 = m * 2;
+  return (tree[_n2]/*.Freq*/ < tree[_m2]/*.Freq*/ ||
+         (tree[_n2]/*.Freq*/ === tree[_m2]/*.Freq*/ && depth[n] <= depth[m]));
+}
+
+/* ===========================================================================
+ * Restore the heap property by moving down the tree starting at node k,
+ * exchanging a node with the smallest of its two sons if necessary, stopping
+ * when the heap property is re-established (each father smaller than its
+ * two sons).
+ */
+function pqdownheap(s, tree, k)
+//    deflate_state *s;
+//    ct_data *tree;  /* the tree to restore */
+//    int k;               /* node to move down */
+{
+  var v = s.heap[k];
+  var j = k << 1;  /* left son of k */
+  while (j <= s.heap_len) {
+    /* Set j to the smallest of the two sons: */
+    if (j < s.heap_len &&
+      smaller(tree, s.heap[j + 1], s.heap[j], s.depth)) {
+      j++;
+    }
+    /* Exit if v is smaller than both sons */
+    if (smaller(tree, v, s.heap[j], s.depth)) { break; }
+
+    /* Exchange v with the smallest son */
+    s.heap[k] = s.heap[j];
+    k = j;
+
+    /* And continue down the tree, setting j to the left son of k */
+    j <<= 1;
+  }
+  s.heap[k] = v;
+}
+
+
+// inlined manually
+// var SMALLEST = 1;
+
+/* ===========================================================================
+ * Send the block data compressed using the given Huffman trees
+ */
+function compress_block(s, ltree, dtree)
+//    deflate_state *s;
+//    const ct_data *ltree; /* literal tree */
+//    const ct_data *dtree; /* distance tree */
+{
+  var dist;           /* distance of matched string */
+  var lc;             /* match length or unmatched char (if dist == 0) */
+  var lx = 0;         /* running index in l_buf */
+  var code;           /* the code to send */
+  var extra;          /* number of extra bits to send */
+
+  if (s.last_lit !== 0) {
+    do {
+      dist = (s.pending_buf[s.d_buf + lx * 2] << 8) | (s.pending_buf[s.d_buf + lx * 2 + 1]);
+      lc = s.pending_buf[s.l_buf + lx];
+      lx++;
+
+      if (dist === 0) {
+        send_code(s, lc, ltree); /* send a literal byte */
+        //Tracecv(isgraph(lc), (stderr," '%c' ", lc));
+      } else {
+        /* Here, lc is the match length - MIN_MATCH */
+        code = _length_code[lc];
+        send_code(s, code + LITERALS + 1, ltree); /* send the length code */
+        extra = extra_lbits[code];
+        if (extra !== 0) {
+          lc -= base_length[code];
+          send_bits(s, lc, extra);       /* send the extra length bits */
+        }
+        dist--; /* dist is now the match distance - 1 */
+        code = d_code(dist);
+        //Assert (code < D_CODES, "bad d_code");
+
+        send_code(s, code, dtree);       /* send the distance code */
+        extra = extra_dbits[code];
+        if (extra !== 0) {
+          dist -= base_dist[code];
+          send_bits(s, dist, extra);   /* send the extra distance bits */
+        }
+      } /* literal or match pair ? */
+
+      /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */
+      //Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx,
+      //       "pendingBuf overflow");
+
+    } while (lx < s.last_lit);
+  }
+
+  send_code(s, END_BLOCK, ltree);
+}
+
+
+/* ===========================================================================
+ * Construct one Huffman tree and assigns the code bit strings and lengths.
+ * Update the total bit length for the current block.
+ * IN assertion: the field freq is set for all tree elements.
+ * OUT assertions: the fields len and code are set to the optimal bit length
+ *     and corresponding code. The length opt_len is updated; static_len is
+ *     also updated if stree is not null. The field max_code is set.
+ */
+function build_tree(s, desc)
+//    deflate_state *s;
+//    tree_desc *desc; /* the tree descriptor */
+{
+  var tree     = desc.dyn_tree;
+  var stree    = desc.stat_desc.static_tree;
+  var has_stree = desc.stat_desc.has_stree;
+  var elems    = desc.stat_desc.elems;
+  var n, m;          /* iterate over heap elements */
+  var max_code = -1; /* largest code with non zero frequency */
+  var node;          /* new node being created */
+
+  /* Construct the initial heap, with least frequent element in
+   * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
+   * heap[0] is not used.
+   */
+  s.heap_len = 0;
+  s.heap_max = HEAP_SIZE;
+
+  for (n = 0; n < elems; n++) {
+    if (tree[n * 2]/*.Freq*/ !== 0) {
+      s.heap[++s.heap_len] = max_code = n;
+      s.depth[n] = 0;
+
+    } else {
+      tree[n * 2 + 1]/*.Len*/ = 0;
+    }
+  }
+
+  /* The pkzip format requires that at least one distance code exists,
+   * and that at least one bit should be sent even if there is only one
+   * possible code. So to avoid special checks later on we force at least
+   * two codes of non zero frequency.
+   */
+  while (s.heap_len < 2) {
+    node = s.heap[++s.heap_len] = (max_code < 2 ? ++max_code : 0);
+    tree[node * 2]/*.Freq*/ = 1;
+    s.depth[node] = 0;
+    s.opt_len--;
+
+    if (has_stree) {
+      s.static_len -= stree[node * 2 + 1]/*.Len*/;
+    }
+    /* node is 0 or 1 so it does not have extra bits */
+  }
+  desc.max_code = max_code;
+
+  /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
+   * establish sub-heaps of increasing lengths:
+   */
+  for (n = (s.heap_len >> 1/*int /2*/); n >= 1; n--) { pqdownheap(s, tree, n); }
+
+  /* Construct the Huffman tree by repeatedly combining the least two
+   * frequent nodes.
+   */
+  node = elems;              /* next internal node of the tree */
+  do {
+    //pqremove(s, tree, n);  /* n = node of least frequency */
+    /*** pqremove ***/
+    n = s.heap[1/*SMALLEST*/];
+    s.heap[1/*SMALLEST*/] = s.heap[s.heap_len--];
+    pqdownheap(s, tree, 1/*SMALLEST*/);
+    /***/
+
+    m = s.heap[1/*SMALLEST*/]; /* m = node of next least frequency */
+
+    s.heap[--s.heap_max] = n; /* keep the nodes sorted by frequency */
+    s.heap[--s.heap_max] = m;
+
+    /* Create a new node father of n and m */
+    tree[node * 2]/*.Freq*/ = tree[n * 2]/*.Freq*/ + tree[m * 2]/*.Freq*/;
+    s.depth[node] = (s.depth[n] >= s.depth[m] ? s.depth[n] : s.depth[m]) + 1;
+    tree[n * 2 + 1]/*.Dad*/ = tree[m * 2 + 1]/*.Dad*/ = node;
+
+    /* and insert the new node in the heap */
+    s.heap[1/*SMALLEST*/] = node++;
+    pqdownheap(s, tree, 1/*SMALLEST*/);
+
+  } while (s.heap_len >= 2);
+
+  s.heap[--s.heap_max] = s.heap[1/*SMALLEST*/];
+
+  /* At this point, the fields freq and dad are set. We can now
+   * generate the bit lengths.
+   */
+  gen_bitlen(s, desc);
+
+  /* The field len is now set, we can generate the bit codes */
+  gen_codes(tree, max_code, s.bl_count);
+}
+
+
+/* ===========================================================================
+ * Scan a literal or distance tree to determine the frequencies of the codes
+ * in the bit length tree.
+ */
+function scan_tree(s, tree, max_code)
+//    deflate_state *s;
+//    ct_data *tree;   /* the tree to be scanned */
+//    int max_code;    /* and its largest code of non zero frequency */
+{
+  var n;                     /* iterates over all tree elements */
+  var prevlen = -1;          /* last emitted length */
+  var curlen;                /* length of current code */
+
+  var nextlen = tree[0 * 2 + 1]/*.Len*/; /* length of next code */
+
+  var count = 0;             /* repeat count of the current code */
+  var max_count = 7;         /* max repeat count */
+  var min_count = 4;         /* min repeat count */
+
+  if (nextlen === 0) {
+    max_count = 138;
+    min_count = 3;
+  }
+  tree[(max_code + 1) * 2 + 1]/*.Len*/ = 0xffff; /* guard */
+
+  for (n = 0; n <= max_code; n++) {
+    curlen = nextlen;
+    nextlen = tree[(n + 1) * 2 + 1]/*.Len*/;
+
+    if (++count < max_count && curlen === nextlen) {
+      continue;
+
+    } else if (count < min_count) {
+      s.bl_tree[curlen * 2]/*.Freq*/ += count;
+
+    } else if (curlen !== 0) {
+
+      if (curlen !== prevlen) { s.bl_tree[curlen * 2]/*.Freq*/++; }
+      s.bl_tree[REP_3_6 * 2]/*.Freq*/++;
+
+    } else if (count <= 10) {
+      s.bl_tree[REPZ_3_10 * 2]/*.Freq*/++;
+
+    } else {
+      s.bl_tree[REPZ_11_138 * 2]/*.Freq*/++;
+    }
+
+    count = 0;
+    prevlen = curlen;
+
+    if (nextlen === 0) {
+      max_count = 138;
+      min_count = 3;
+
+    } else if (curlen === nextlen) {
+      max_count = 6;
+      min_count = 3;
+
+    } else {
+      max_count = 7;
+      min_count = 4;
+    }
+  }
+}
+
+
+/* ===========================================================================
+ * Send a literal or distance tree in compressed form, using the codes in
+ * bl_tree.
+ */
+function send_tree(s, tree, max_code)
+//    deflate_state *s;
+//    ct_data *tree; /* the tree to be scanned */
+//    int max_code;       /* and its largest code of non zero frequency */
+{
+  var n;                     /* iterates over all tree elements */
+  var prevlen = -1;          /* last emitted length */
+  var curlen;                /* length of current code */
+
+  var nextlen = tree[0 * 2 + 1]/*.Len*/; /* length of next code */
+
+  var count = 0;             /* repeat count of the current code */
+  var max_count = 7;         /* max repeat count */
+  var min_count = 4;         /* min repeat count */
+
+  /* tree[max_code+1].Len = -1; */  /* guard already set */
+  if (nextlen === 0) {
+    max_count = 138;
+    min_count = 3;
+  }
+
+  for (n = 0; n <= max_code; n++) {
+    curlen = nextlen;
+    nextlen = tree[(n + 1) * 2 + 1]/*.Len*/;
+
+    if (++count < max_count && curlen === nextlen) {
+      continue;
+
+    } else if (count < min_count) {
+      do { send_code(s, curlen, s.bl_tree); } while (--count !== 0);
+
+    } else if (curlen !== 0) {
+      if (curlen !== prevlen) {
+        send_code(s, curlen, s.bl_tree);
+        count--;
+      }
+      //Assert(count >= 3 && count <= 6, " 3_6?");
+      send_code(s, REP_3_6, s.bl_tree);
+      send_bits(s, count - 3, 2);
+
+    } else if (count <= 10) {
+      send_code(s, REPZ_3_10, s.bl_tree);
+      send_bits(s, count - 3, 3);
+
+    } else {
+      send_code(s, REPZ_11_138, s.bl_tree);
+      send_bits(s, count - 11, 7);
+    }
+
+    count = 0;
+    prevlen = curlen;
+    if (nextlen === 0) {
+      max_count = 138;
+      min_count = 3;
+
+    } else if (curlen === nextlen) {
+      max_count = 6;
+      min_count = 3;
+
+    } else {
+      max_count = 7;
+      min_count = 4;
+    }
+  }
+}
+
+
+/* ===========================================================================
+ * Construct the Huffman tree for the bit lengths and return the index in
+ * bl_order of the last bit length code to send.
+ */
+function build_bl_tree(s) {
+  var max_blindex;  /* index of last bit length code of non zero freq */
+
+  /* Determine the bit length frequencies for literal and distance trees */
+  scan_tree(s, s.dyn_ltree, s.l_desc.max_code);
+  scan_tree(s, s.dyn_dtree, s.d_desc.max_code);
+
+  /* Build the bit length tree: */
+  build_tree(s, s.bl_desc);
+  /* opt_len now includes the length of the tree representations, except
+   * the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
+   */
+
+  /* Determine the number of bit length codes to send. The pkzip format
+   * requires that at least 4 bit length codes be sent. (appnote.txt says
+   * 3 but the actual value used is 4.)
+   */
+  for (max_blindex = BL_CODES - 1; max_blindex >= 3; max_blindex--) {
+    if (s.bl_tree[bl_order[max_blindex] * 2 + 1]/*.Len*/ !== 0) {
+      break;
+    }
+  }
+  /* Update opt_len to include the bit length tree and counts */
+  s.opt_len += 3 * (max_blindex + 1) + 5 + 5 + 4;
+  //Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld",
+  //        s->opt_len, s->static_len));
+
+  return max_blindex;
+}
+
+
+/* ===========================================================================
+ * Send the header for a block using dynamic Huffman trees: the counts, the
+ * lengths of the bit length codes, the literal tree and the distance tree.
+ * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
+ */
+function send_all_trees(s, lcodes, dcodes, blcodes)
+//    deflate_state *s;
+//    int lcodes, dcodes, blcodes; /* number of codes for each tree */
+{
+  var rank;                    /* index in bl_order */
+
+  //Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
+  //Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
+  //        "too many codes");
+  //Tracev((stderr, "\nbl counts: "));
+  send_bits(s, lcodes - 257, 5); /* not +255 as stated in appnote.txt */
+  send_bits(s, dcodes - 1,   5);
+  send_bits(s, blcodes - 4,  4); /* not -3 as stated in appnote.txt */
+  for (rank = 0; rank < blcodes; rank++) {
+    //Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
+    send_bits(s, s.bl_tree[bl_order[rank] * 2 + 1]/*.Len*/, 3);
+  }
+  //Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent));
+
+  send_tree(s, s.dyn_ltree, lcodes - 1); /* literal tree */
+  //Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent));
+
+  send_tree(s, s.dyn_dtree, dcodes - 1); /* distance tree */
+  //Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent));
+}
+
+
+/* ===========================================================================
+ * Check if the data type is TEXT or BINARY, using the following algorithm:
+ * - TEXT if the two conditions below are satisfied:
+ *    a) There are no non-portable control characters belonging to the
+ *       "black list" (0..6, 14..25, 28..31).
+ *    b) There is at least one printable character belonging to the
+ *       "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255).
+ * - BINARY otherwise.
+ * - The following partially-portable control characters form a
+ *   "gray list" that is ignored in this detection algorithm:
+ *   (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}).
+ * IN assertion: the fields Freq of dyn_ltree are set.
+ */
+function detect_data_type(s) {
+  /* black_mask is the bit mask of black-listed bytes
+   * set bits 0..6, 14..25, and 28..31
+   * 0xf3ffc07f = binary 11110011111111111100000001111111
+   */
+  var black_mask = 0xf3ffc07f;
+  var n;
+
+  /* Check for non-textual ("black-listed") bytes. */
+  for (n = 0; n <= 31; n++, black_mask >>>= 1) {
+    if ((black_mask & 1) && (s.dyn_ltree[n * 2]/*.Freq*/ !== 0)) {
+      return Z_BINARY;
+    }
+  }
+
+  /* Check for textual ("white-listed") bytes. */
+  if (s.dyn_ltree[9 * 2]/*.Freq*/ !== 0 || s.dyn_ltree[10 * 2]/*.Freq*/ !== 0 ||
+      s.dyn_ltree[13 * 2]/*.Freq*/ !== 0) {
+    return Z_TEXT;
+  }
+  for (n = 32; n < LITERALS; n++) {
+    if (s.dyn_ltree[n * 2]/*.Freq*/ !== 0) {
+      return Z_TEXT;
+    }
+  }
+
+  /* There are no "black-listed" or "white-listed" bytes:
+   * this stream either is empty or has tolerated ("gray-listed") bytes only.
+   */
+  return Z_BINARY;
+}
+
+
+var static_init_done = false;
+
+/* ===========================================================================
+ * Initialize the tree data structures for a new zlib stream.
+ */
+function _tr_init(s)
+{
+
+  if (!static_init_done) {
+    tr_static_init();
+    static_init_done = true;
+  }
+
+  s.l_desc  = new TreeDesc(s.dyn_ltree, static_l_desc);
+  s.d_desc  = new TreeDesc(s.dyn_dtree, static_d_desc);
+  s.bl_desc = new TreeDesc(s.bl_tree, static_bl_desc);
+
+  s.bi_buf = 0;
+  s.bi_valid = 0;
+
+  /* Initialize the first block of the first file: */
+  init_block(s);
+}
+
+
+/* ===========================================================================
+ * Send a stored block
+ */
+function _tr_stored_block(s, buf, stored_len, last)
+//DeflateState *s;
+//charf *buf;       /* input block */
+//ulg stored_len;   /* length of input block */
+//int last;         /* one if this is the last block for a file */
+{
+  send_bits(s, (STORED_BLOCK << 1) + (last ? 1 : 0), 3);    /* send block type */
+  copy_block(s, buf, stored_len, true); /* with header */
+}
+
+
+/* ===========================================================================
+ * Send one empty static block to give enough lookahead for inflate.
+ * This takes 10 bits, of which 7 may remain in the bit buffer.
+ */
+function _tr_align(s) {
+  send_bits(s, STATIC_TREES << 1, 3);
+  send_code(s, END_BLOCK, static_ltree);
+  bi_flush(s);
+}
+
+
+/* ===========================================================================
+ * Determine the best encoding for the current block: dynamic trees, static
+ * trees or store, and output the encoded block to the zip file.
+ */
+function _tr_flush_block(s, buf, stored_len, last)
+//DeflateState *s;
+//charf *buf;       /* input block, or NULL if too old */
+//ulg stored_len;   /* length of input block */
+//int last;         /* one if this is the last block for a file */
+{
+  var opt_lenb, static_lenb;  /* opt_len and static_len in bytes */
+  var max_blindex = 0;        /* index of last bit length code of non zero freq */
+
+  /* Build the Huffman trees unless a stored block is forced */
+  if (s.level > 0) {
+
+    /* Check if the file is binary or text */
+    if (s.strm.data_type === Z_UNKNOWN) {
+      s.strm.data_type = detect_data_type(s);
+    }
+
+    /* Construct the literal and distance trees */
+    build_tree(s, s.l_desc);
+    // Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len,
+    //        s->static_len));
+
+    build_tree(s, s.d_desc);
+    // Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len,
+    //        s->static_len));
+    /* At this point, opt_len and static_len are the total bit lengths of
+     * the compressed block data, excluding the tree representations.
+     */
+
+    /* Build the bit length tree for the above two trees, and get the index
+     * in bl_order of the last bit length code to send.
+     */
+    max_blindex = build_bl_tree(s);
+
+    /* Determine the best encoding. Compute the block lengths in bytes. */
+    opt_lenb = (s.opt_len + 3 + 7) >>> 3;
+    static_lenb = (s.static_len + 3 + 7) >>> 3;
+
+    // Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
+    //        opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
+    //        s->last_lit));
+
+    if (static_lenb <= opt_lenb) { opt_lenb = static_lenb; }
+
+  } else {
+    // Assert(buf != (char*)0, "lost buf");
+    opt_lenb = static_lenb = stored_len + 5; /* force a stored block */
+  }
+
+  if ((stored_len + 4 <= opt_lenb) && (buf !== -1)) {
+    /* 4: two words for the lengths */
+
+    /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
+     * Otherwise we can't have processed more than WSIZE input bytes since
+     * the last block flush, because compression would have been
+     * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
+     * transform a block into a stored block.
+     */
+    _tr_stored_block(s, buf, stored_len, last);
+
+  } else if (s.strategy === Z_FIXED || static_lenb === opt_lenb) {
+
+    send_bits(s, (STATIC_TREES << 1) + (last ? 1 : 0), 3);
+    compress_block(s, static_ltree, static_dtree);
+
+  } else {
+    send_bits(s, (DYN_TREES << 1) + (last ? 1 : 0), 3);
+    send_all_trees(s, s.l_desc.max_code + 1, s.d_desc.max_code + 1, max_blindex + 1);
+    compress_block(s, s.dyn_ltree, s.dyn_dtree);
+  }
+  // Assert (s->compressed_len == s->bits_sent, "bad compressed size");
+  /* The above check is made mod 2^32, for files larger than 512 MB
+   * and uLong implemented on 32 bits.
+   */
+  init_block(s);
+
+  if (last) {
+    bi_windup(s);
+  }
+  // Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3,
+  //       s->compressed_len-7*last));
+}
+
+/* ===========================================================================
+ * Save the match info and tally the frequency counts. Return true if
+ * the current block must be flushed.
+ */
+function _tr_tally(s, dist, lc)
+//    deflate_state *s;
+//    unsigned dist;  /* distance of matched string */
+//    unsigned lc;    /* match length-MIN_MATCH or unmatched char (if dist==0) */
+{
+  //var out_length, in_length, dcode;
+
+  s.pending_buf[s.d_buf + s.last_lit * 2]     = (dist >>> 8) & 0xff;
+  s.pending_buf[s.d_buf + s.last_lit * 2 + 1] = dist & 0xff;
+
+  s.pending_buf[s.l_buf + s.last_lit] = lc & 0xff;
+  s.last_lit++;
+
+  if (dist === 0) {
+    /* lc is the unmatched char */
+    s.dyn_ltree[lc * 2]/*.Freq*/++;
+  } else {
+    s.matches++;
+    /* Here, lc is the match length - MIN_MATCH */
+    dist--;             /* dist = match distance - 1 */
+    //Assert((ush)dist < (ush)MAX_DIST(s) &&
+    //       (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
+    //       (ush)d_code(dist) < (ush)D_CODES,  "_tr_tally: bad match");
+
+    s.dyn_ltree[(_length_code[lc] + LITERALS + 1) * 2]/*.Freq*/++;
+    s.dyn_dtree[d_code(dist) * 2]/*.Freq*/++;
+  }
+
+// (!) This block is disabled in zlib defaults,
+// don't enable it for binary compatibility
+
+//#ifdef TRUNCATE_BLOCK
+//  /* Try to guess if it is profitable to stop the current block here */
+//  if ((s.last_lit & 0x1fff) === 0 && s.level > 2) {
+//    /* Compute an upper bound for the compressed length */
+//    out_length = s.last_lit*8;
+//    in_length = s.strstart - s.block_start;
+//
+//    for (dcode = 0; dcode < D_CODES; dcode++) {
+//      out_length += s.dyn_dtree[dcode*2]/*.Freq*/ * (5 + extra_dbits[dcode]);
+//    }
+//    out_length >>>= 3;
+//    //Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ",
+//    //       s->last_lit, in_length, out_length,
+//    //       100L - out_length*100L/in_length));
+//    if (s.matches < (s.last_lit>>1)/*int /2*/ && out_length < (in_length>>1)/*int /2*/) {
+//      return true;
+//    }
+//  }
+//#endif
+
+  return (s.last_lit === s.lit_bufsize - 1);
+  /* We avoid equality with lit_bufsize because of wraparound at 64K
+   * on 16 bit machines and because stored blocks are restricted to
+   * 64K-1 bytes.
+   */
+}
+
+exports._tr_init  = _tr_init;
+exports._tr_stored_block = _tr_stored_block;
+exports._tr_flush_block  = _tr_flush_block;
+exports._tr_tally = _tr_tally;
+exports._tr_align = _tr_align;
+
+},{"../utils/common":50}],62:[function(require,module,exports){
+'use strict';
+
+// (C) 1995-2013 Jean-loup Gailly and Mark Adler
+// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//   claim that you wrote the original software. If you use this software
+//   in a product, an acknowledgment in the product documentation would be
+//   appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//   misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+function ZStream() {
+  /* next input byte */
+  this.input = null; // JS specific, because we have no pointers
+  this.next_in = 0;
+  /* number of bytes available at input */
+  this.avail_in = 0;
+  /* total number of input bytes read so far */
+  this.total_in = 0;
+  /* next output byte should be put there */
+  this.output = null; // JS specific, because we have no pointers
+  this.next_out = 0;
+  /* remaining free space at output */
+  this.avail_out = 0;
+  /* total number of bytes output so far */
+  this.total_out = 0;
+  /* last error message, NULL if no error */
+  this.msg = ''/*Z_NULL*/;
+  /* not visible by applications */
+  this.state = null;
+  /* best guess about the data type: binary or text */
+  this.data_type = 2/*Z_UNKNOWN*/;
+  /* adler32 value of the uncompressed data */
+  this.adler = 0;
+}
+
+module.exports = ZStream;
+
+},{}],63:[function(require,module,exports){
+(function (process){
+'use strict';
+
+if (typeof process === 'undefined' ||
+    !process.version ||
+    process.version.indexOf('v0.') === 0 ||
+    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
+  module.exports = { nextTick: nextTick };
+} else {
+  module.exports = process
+}
+
+function nextTick(fn, arg1, arg2, arg3) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('"callback" argument must be a function');
+  }
+  var len = arguments.length;
+  var args, i;
+  switch (len) {
+  case 0:
+  case 1:
+    return process.nextTick(fn);
+  case 2:
+    return process.nextTick(function afterTickOne() {
+      fn.call(null, arg1);
+    });
+  case 3:
+    return process.nextTick(function afterTickTwo() {
+      fn.call(null, arg1, arg2);
+    });
+  case 4:
+    return process.nextTick(function afterTickThree() {
+      fn.call(null, arg1, arg2, arg3);
+    });
+  default:
+    args = new Array(len - 1);
+    i = 0;
+    while (i < args.length) {
+      args[i++] = arguments[i];
+    }
+    return process.nextTick(function afterTick() {
+      fn.apply(null, args);
+    });
+  }
+}
+
+
+}).call(this,require('_process'))
+},{"_process":64}],64:[function(require,module,exports){
+// shim for using process in browser
+var process = module.exports = {};
+
+// cached from whatever global is present so that test runners that stub it
+// don't break things.  But we need to wrap it in a try catch in case it is
+// wrapped in strict mode code which doesn't define any globals.  It's inside a
+// function because try/catches deoptimize in certain engines.
+
+var cachedSetTimeout;
+var cachedClearTimeout;
+
+function defaultSetTimout() {
+    throw new Error('setTimeout has not been defined');
+}
+function defaultClearTimeout () {
+    throw new Error('clearTimeout has not been defined');
+}
+(function () {
+    try {
+        if (typeof setTimeout === 'function') {
+            cachedSetTimeout = setTimeout;
+        } else {
+            cachedSetTimeout = defaultSetTimout;
+        }
+    } catch (e) {
+        cachedSetTimeout = defaultSetTimout;
+    }
+    try {
+        if (typeof clearTimeout === 'function') {
+            cachedClearTimeout = clearTimeout;
+        } else {
+            cachedClearTimeout = defaultClearTimeout;
+        }
+    } catch (e) {
+        cachedClearTimeout = defaultClearTimeout;
+    }
+} ())
+function runTimeout(fun) {
+    if (cachedSetTimeout === setTimeout) {
+        //normal enviroments in sane situations
+        return setTimeout(fun, 0);
+    }
+    // if setTimeout wasn't available but was latter defined
+    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+        cachedSetTimeout = setTimeout;
+        return setTimeout(fun, 0);
+    }
+    try {
+        // when when somebody has screwed with setTimeout but no I.E. maddness
+        return cachedSetTimeout(fun, 0);
+    } catch(e){
+        try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+            return cachedSetTimeout.call(null, fun, 0);
+        } catch(e){
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+            return cachedSetTimeout.call(this, fun, 0);
+        }
+    }
+
+
+}
+function runClearTimeout(marker) {
+    if (cachedClearTimeout === clearTimeout) {
+        //normal enviroments in sane situations
+        return clearTimeout(marker);
+    }
+    // if clearTimeout wasn't available but was latter defined
+    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+        cachedClearTimeout = clearTimeout;
+        return clearTimeout(marker);
+    }
+    try {
+        // when when somebody has screwed with setTimeout but no I.E. maddness
+        return cachedClearTimeout(marker);
+    } catch (e){
+        try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+            return cachedClearTimeout.call(null, marker);
+        } catch (e){
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+            return cachedClearTimeout.call(this, marker);
+        }
+    }
+
+
+
+}
+var queue = [];
+var draining = false;
+var currentQueue;
+var queueIndex = -1;
+
+function cleanUpNextTick() {
+    if (!draining || !currentQueue) {
+        return;
+    }
+    draining = false;
+    if (currentQueue.length) {
+        queue = currentQueue.concat(queue);
+    } else {
+        queueIndex = -1;
+    }
+    if (queue.length) {
+        drainQueue();
+    }
+}
+
+function drainQueue() {
+    if (draining) {
+        return;
+    }
+    var timeout = runTimeout(cleanUpNextTick);
+    draining = true;
+
+    var len = queue.length;
+    while(len) {
+        currentQueue = queue;
+        queue = [];
+        while (++queueIndex < len) {
+            if (currentQueue) {
+                currentQueue[queueIndex].run();
+            }
+        }
+        queueIndex = -1;
+        len = queue.length;
+    }
+    currentQueue = null;
+    draining = false;
+    runClearTimeout(timeout);
+}
+
+process.nextTick = function (fun) {
+    var args = new Array(arguments.length - 1);
+    if (arguments.length > 1) {
+        for (var i = 1; i < arguments.length; i++) {
+            args[i - 1] = arguments[i];
+        }
+    }
+    queue.push(new Item(fun, args));
+    if (queue.length === 1 && !draining) {
+        runTimeout(drainQueue);
+    }
+};
+
+// v8 likes predictible objects
+function Item(fun, array) {
+    this.fun = fun;
+    this.array = array;
+}
+Item.prototype.run = function () {
+    this.fun.apply(null, this.array);
+};
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+process.version = ''; // empty string to avoid regexp issues
+process.versions = {};
+
+function noop() {}
+
+process.on = noop;
+process.addListener = noop;
+process.once = noop;
+process.off = noop;
+process.removeListener = noop;
+process.removeAllListeners = noop;
+process.emit = noop;
+process.prependListener = noop;
+process.prependOnceListener = noop;
+
+process.listeners = function (name) { return [] }
+
+process.binding = function (name) {
+    throw new Error('process.binding is not supported');
+};
+
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+    throw new Error('process.chdir is not supported');
+};
+process.umask = function() { return 0; };
+
+},{}],65:[function(require,module,exports){
+module.exports = require('./lib/_stream_duplex.js');
+
+},{"./lib/_stream_duplex.js":66}],66:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
+
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+/*<replacement>*/
+var objectKeys = Object.keys || function (obj) {
+  var keys = [];
+  for (var key in obj) {
+    keys.push(key);
+  }return keys;
+};
+/*</replacement>*/
+
+module.exports = Duplex;
+
+/*<replacement>*/
+var util = Object.create(require('core-util-is'));
+util.inherits = require('inherits');
+/*</replacement>*/
+
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
+
+util.inherits(Duplex, Readable);
+
+{
+  // avoid scope creep, the keys array can then be collected
+  var keys = objectKeys(Writable.prototype);
+  for (var v = 0; v < keys.length; v++) {
+    var method = keys[v];
+    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+  }
+}
+
+function Duplex(options) {
+  if (!(this instanceof Duplex)) return new Duplex(options);
+
+  Readable.call(this, options);
+  Writable.call(this, options);
+
+  if (options && options.readable === false) this.readable = false;
+
+  if (options && options.writable === false) this.writable = false;
+
+  this.allowHalfOpen = true;
+  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
+
+  this.once('end', onend);
+}
+
+Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._writableState.highWaterMark;
+  }
+});
+
+// the no-half-open enforcer
+function onend() {
+  // if we allow half-open state, or if the writable side ended,
+  // then we're ok.
+  if (this.allowHalfOpen || this._writableState.ended) return;
+
+  // no more data can be written.
+  // But allow more writes to happen in this tick.
+  pna.nextTick(onEndNT, this);
+}
+
+function onEndNT(self) {
+  self.end();
+}
+
+Object.defineProperty(Duplex.prototype, 'destroyed', {
+  get: function () {
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed && this._writableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+    this._writableState.destroyed = value;
+  }
+});
+
+Duplex.prototype._destroy = function (err, cb) {
+  this.push(null);
+  this.end();
+
+  pna.nextTick(cb, err);
+};
+},{"./_stream_readable":68,"./_stream_writable":70,"core-util-is":4,"inherits":8,"process-nextick-args":63}],67:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
+
+'use strict';
+
+module.exports = PassThrough;
+
+var Transform = require('./_stream_transform');
+
+/*<replacement>*/
+var util = Object.create(require('core-util-is'));
+util.inherits = require('inherits');
+/*</replacement>*/
+
+util.inherits(PassThrough, Transform);
+
+function PassThrough(options) {
+  if (!(this instanceof PassThrough)) return new PassThrough(options);
+
+  Transform.call(this, options);
+}
+
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+  cb(null, chunk);
+};
+},{"./_stream_transform":69,"core-util-is":4,"inherits":8}],68:[function(require,module,exports){
+(function (process,global){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+module.exports = Readable;
+
+/*<replacement>*/
+var isArray = require('isarray');
+/*</replacement>*/
+
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Readable.ReadableState = ReadableState;
+
+/*<replacement>*/
+var EE = require('events').EventEmitter;
+
+var EElistenerCount = function (emitter, type) {
+  return emitter.listeners(type).length;
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+/*<replacement>*/
+
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = global.Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+
+/*</replacement>*/
+
+/*<replacement>*/
+var util = Object.create(require('core-util-is'));
+util.inherits = require('inherits');
+/*</replacement>*/
+
+/*<replacement>*/
+var debugUtil = require('util');
+var debug = void 0;
+if (debugUtil && debugUtil.debuglog) {
+  debug = debugUtil.debuglog('stream');
+} else {
+  debug = function () {};
+}
+/*</replacement>*/
+
+var BufferList = require('./internal/streams/BufferList');
+var destroyImpl = require('./internal/streams/destroy');
+var StringDecoder;
+
+util.inherits(Readable, Stream);
+
+var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
+
+function prependListener(emitter, event, fn) {
+  // Sadly this is not cacheable as some libraries bundle their own
+  // event emitter implementation with them.
+  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);
+
+  // This is a hack to make sure that our error handler is attached before any
+  // userland ones.  NEVER DO THIS. This is here only because this code needs
+  // to continue to work with older versions of Node.js that do not include
+  // the prependListener() method. The goal is to eventually remove this hack.
+  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
+}
+
+function ReadableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  options = options || {};
+
+  // Duplex streams are both readable and writable, but share
+  // the same options object.
+  // However, some cases require setting options to different
+  // values for the readable and the writable sides of the duplex stream.
+  // These options can be provided separately as readableXXX and writableXXX.
+  var isDuplex = stream instanceof Duplex;
+
+  // object stream flag. Used to make read(n) ignore n and to
+  // make all the buffer merging and length checks go away
+  this.objectMode = !!options.objectMode;
+
+  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
+
+  // the point at which it stops calling _read() to fill the buffer
+  // Note: 0 is a valid value, means "don't call _read preemptively ever"
+  var hwm = options.highWaterMark;
+  var readableHwm = options.readableHighWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+
+  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;
+
+  // cast to ints.
+  this.highWaterMark = Math.floor(this.highWaterMark);
+
+  // A linked list is used to store data chunks instead of an array because the
+  // linked list can remove elements from the beginning faster than
+  // array.shift()
+  this.buffer = new BufferList();
+  this.length = 0;
+  this.pipes = null;
+  this.pipesCount = 0;
+  this.flowing = null;
+  this.ended = false;
+  this.endEmitted = false;
+  this.reading = false;
+
+  // a flag to be able to tell if the event 'readable'/'data' is emitted
+  // immediately, or on a later tick.  We set this to true at first, because
+  // any actions that shouldn't happen until "later" should generally also
+  // not happen before the first read call.
+  this.sync = true;
+
+  // whenever we return null, then we set a flag to say
+  // that we're awaiting a 'readable' event emission.
+  this.needReadable = false;
+  this.emittedReadable = false;
+  this.readableListening = false;
+  this.resumeScheduled = false;
+
+  // has it been destroyed
+  this.destroyed = false;
+
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
+
+  // the number of writers that are awaiting a drain event in .pipe()s
+  this.awaitDrain = 0;
+
+  // if true, a maybeReadMore has been scheduled
+  this.readingMore = false;
+
+  this.decoder = null;
+  this.encoding = null;
+  if (options.encoding) {
+    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+    this.decoder = new StringDecoder(options.encoding);
+    this.encoding = options.encoding;
+  }
+}
+
+function Readable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  if (!(this instanceof Readable)) return new Readable(options);
+
+  this._readableState = new ReadableState(options, this);
+
+  // legacy
+  this.readable = true;
+
+  if (options) {
+    if (typeof options.read === 'function') this._read = options.read;
+
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+  }
+
+  Stream.call(this);
+}
+
+Object.defineProperty(Readable.prototype, 'destroyed', {
+  get: function () {
+    if (this._readableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._readableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+  }
+});
+
+Readable.prototype.destroy = destroyImpl.destroy;
+Readable.prototype._undestroy = destroyImpl.undestroy;
+Readable.prototype._destroy = function (err, cb) {
+  this.push(null);
+  cb(err);
+};
+
+// Manually shove something into the read() buffer.
+// This returns true if the highWaterMark has not been hit yet,
+// similar to how Writable.write() returns true if you should
+// write() some more.
+Readable.prototype.push = function (chunk, encoding) {
+  var state = this._readableState;
+  var skipChunkCheck;
+
+  if (!state.objectMode) {
+    if (typeof chunk === 'string') {
+      encoding = encoding || state.defaultEncoding;
+      if (encoding !== state.encoding) {
+        chunk = Buffer.from(chunk, encoding);
+        encoding = '';
+      }
+      skipChunkCheck = true;
+    }
+  } else {
+    skipChunkCheck = true;
+  }
+
+  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
+};
+
+// Unshift should *always* be something directly out of read()
+Readable.prototype.unshift = function (chunk) {
+  return readableAddChunk(this, chunk, null, true, false);
+};
+
+function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
+  var state = stream._readableState;
+  if (chunk === null) {
+    state.reading = false;
+    onEofChunk(stream, state);
+  } else {
+    var er;
+    if (!skipChunkCheck) er = chunkInvalid(state, chunk);
+    if (er) {
+      stream.emit('error', er);
+    } else if (state.objectMode || chunk && chunk.length > 0) {
+      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
+        chunk = _uint8ArrayToBuffer(chunk);
+      }
+
+      if (addToFront) {
+        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
+      } else if (state.ended) {
+        stream.emit('error', new Error('stream.push() after EOF'));
+      } else {
+        state.reading = false;
+        if (state.decoder && !encoding) {
+          chunk = state.decoder.write(chunk);
+          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
+        } else {
+          addChunk(stream, state, chunk, false);
+        }
+      }
+    } else if (!addToFront) {
+      state.reading = false;
+    }
+  }
+
+  return needMoreData(state);
+}
+
+function addChunk(stream, state, chunk, addToFront) {
+  if (state.flowing && state.length === 0 && !state.sync) {
+    stream.emit('data', chunk);
+    stream.read(0);
+  } else {
+    // update the buffer info.
+    state.length += state.objectMode ? 1 : chunk.length;
+    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
+
+    if (state.needReadable) emitReadable(stream);
+  }
+  maybeReadMore(stream, state);
+}
+
+function chunkInvalid(state, chunk) {
+  var er;
+  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  return er;
+}
+
+// if it's past the high water mark, we can push in some more.
+// Also, if we have no data yet, we can stand some
+// more bytes.  This is to work around cases where hwm=0,
+// such as the repl.  Also, if the push() triggered a
+// readable event, and the user called read(largeNumber) such that
+// needReadable was set, then we ought to push more, so that another
+// 'readable' event will be triggered.
+function needMoreData(state) {
+  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
+}
+
+Readable.prototype.isPaused = function () {
+  return this._readableState.flowing === false;
+};
+
+// backwards compatibility.
+Readable.prototype.setEncoding = function (enc) {
+  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+  this._readableState.decoder = new StringDecoder(enc);
+  this._readableState.encoding = enc;
+  return this;
+};
+
+// Don't raise the hwm > 8MB
+var MAX_HWM = 0x800000;
+function computeNewHighWaterMark(n) {
+  if (n >= MAX_HWM) {
+    n = MAX_HWM;
+  } else {
+    // Get the next highest power of 2 to prevent increasing hwm excessively in
+    // tiny amounts
+    n--;
+    n |= n >>> 1;
+    n |= n >>> 2;
+    n |= n >>> 4;
+    n |= n >>> 8;
+    n |= n >>> 16;
+    n++;
+  }
+  return n;
+}
+
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function howMuchToRead(n, state) {
+  if (n <= 0 || state.length === 0 && state.ended) return 0;
+  if (state.objectMode) return 1;
+  if (n !== n) {
+    // Only flow one buffer at a time
+    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
+  }
+  // If we're asking for more than the current hwm, then raise the hwm.
+  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
+  if (n <= state.length) return n;
+  // Don't have enough
+  if (!state.ended) {
+    state.needReadable = true;
+    return 0;
+  }
+  return state.length;
+}
+
+// you can override either this method, or the async _read(n) below.
+Readable.prototype.read = function (n) {
+  debug('read', n);
+  n = parseInt(n, 10);
+  var state = this._readableState;
+  var nOrig = n;
+
+  if (n !== 0) state.emittedReadable = false;
+
+  // if we're doing read(0) to trigger a readable event, but we
+  // already have a bunch of data in the buffer, then just trigger
+  // the 'readable' event and move on.
+  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
+    debug('read: emitReadable', state.length, state.ended);
+    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
+    return null;
+  }
+
+  n = howMuchToRead(n, state);
+
+  // if we've ended, and we're now clear, then finish it up.
+  if (n === 0 && state.ended) {
+    if (state.length === 0) endReadable(this);
+    return null;
+  }
+
+  // All the actual chunk generation logic needs to be
+  // *below* the call to _read.  The reason is that in certain
+  // synthetic stream cases, such as passthrough streams, _read
+  // may be a completely synchronous operation which may change
+  // the state of the read buffer, providing enough data when
+  // before there was *not* enough.
+  //
+  // So, the steps are:
+  // 1. Figure out what the state of things will be after we do
+  // a read from the buffer.
+  //
+  // 2. If that resulting state will trigger a _read, then call _read.
+  // Note that this may be asynchronous, or synchronous.  Yes, it is
+  // deeply ugly to write APIs this way, but that still doesn't mean
+  // that the Readable class should behave improperly, as streams are
+  // designed to be sync/async agnostic.
+  // Take note if the _read call is sync or async (ie, if the read call
+  // has returned yet), so that we know whether or not it's safe to emit
+  // 'readable' etc.
+  //
+  // 3. Actually pull the requested chunks out of the buffer and return.
+
+  // if we need a readable event, then we need to do some reading.
+  var doRead = state.needReadable;
+  debug('need readable', doRead);
+
+  // if we currently have less than the highWaterMark, then also read some
+  if (state.length === 0 || state.length - n < state.highWaterMark) {
+    doRead = true;
+    debug('length less than watermark', doRead);
+  }
+
+  // however, if we've ended, then there's no point, and if we're already
+  // reading, then it's unnecessary.
+  if (state.ended || state.reading) {
+    doRead = false;
+    debug('reading or ended', doRead);
+  } else if (doRead) {
+    debug('do read');
+    state.reading = true;
+    state.sync = true;
+    // if the length is currently zero, then we *need* a readable event.
+    if (state.length === 0) state.needReadable = true;
+    // call internal read method
+    this._read(state.highWaterMark);
+    state.sync = false;
+    // If _read pushed data synchronously, then `reading` will be false,
+    // and we need to re-evaluate how much data we can return to the user.
+    if (!state.reading) n = howMuchToRead(nOrig, state);
+  }
+
+  var ret;
+  if (n > 0) ret = fromList(n, state);else ret = null;
+
+  if (ret === null) {
+    state.needReadable = true;
+    n = 0;
+  } else {
+    state.length -= n;
+  }
+
+  if (state.length === 0) {
+    // If we have nothing in the buffer, then we want to know
+    // as soon as we *do* get something into the buffer.
+    if (!state.ended) state.needReadable = true;
+
+    // If we tried to read() past the EOF, then emit end on the next tick.
+    if (nOrig !== n && state.ended) endReadable(this);
+  }
+
+  if (ret !== null) this.emit('data', ret);
+
+  return ret;
+};
+
+function onEofChunk(stream, state) {
+  if (state.ended) return;
+  if (state.decoder) {
+    var chunk = state.decoder.end();
+    if (chunk && chunk.length) {
+      state.buffer.push(chunk);
+      state.length += state.objectMode ? 1 : chunk.length;
+    }
+  }
+  state.ended = true;
+
+  // emit 'readable' now to make sure it gets picked up.
+  emitReadable(stream);
+}
+
+// Don't emit readable right away in sync mode, because this can trigger
+// another read() call => stack overflow.  This way, it might trigger
+// a nextTick recursion warning, but that's not so bad.
+function emitReadable(stream) {
+  var state = stream._readableState;
+  state.needReadable = false;
+  if (!state.emittedReadable) {
+    debug('emitReadable', state.flowing);
+    state.emittedReadable = true;
+    if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);
+  }
+}
+
+function emitReadable_(stream) {
+  debug('emit readable');
+  stream.emit('readable');
+  flow(stream);
+}
+
+// at this point, the user has presumably seen the 'readable' event,
+// and called read() to consume some data.  that may have triggered
+// in turn another _read(n) call, in which case reading = true if
+// it's in progress.
+// However, if we're not ended, or reading, and the length < hwm,
+// then go ahead and try to read some more preemptively.
+function maybeReadMore(stream, state) {
+  if (!state.readingMore) {
+    state.readingMore = true;
+    pna.nextTick(maybeReadMore_, stream, state);
+  }
+}
+
+function maybeReadMore_(stream, state) {
+  var len = state.length;
+  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
+    debug('maybeReadMore read 0');
+    stream.read(0);
+    if (len === state.length)
+      // didn't get any data, stop spinning.
+      break;else len = state.length;
+  }
+  state.readingMore = false;
+}
+
+// abstract method.  to be overridden in specific implementation classes.
+// call cb(er, data) where data is <= n in length.
+// for virtual (non-string, non-buffer) streams, "length" is somewhat
+// arbitrary, and perhaps not very meaningful.
+Readable.prototype._read = function (n) {
+  this.emit('error', new Error('_read() is not implemented'));
+};
+
+Readable.prototype.pipe = function (dest, pipeOpts) {
+  var src = this;
+  var state = this._readableState;
+
+  switch (state.pipesCount) {
+    case 0:
+      state.pipes = dest;
+      break;
+    case 1:
+      state.pipes = [state.pipes, dest];
+      break;
+    default:
+      state.pipes.push(dest);
+      break;
+  }
+  state.pipesCount += 1;
+  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
+
+  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
+
+  var endFn = doEnd ? onend : unpipe;
+  if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);
+
+  dest.on('unpipe', onunpipe);
+  function onunpipe(readable, unpipeInfo) {
+    debug('onunpipe');
+    if (readable === src) {
+      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
+        unpipeInfo.hasUnpiped = true;
+        cleanup();
+      }
+    }
+  }
+
+  function onend() {
+    debug('onend');
+    dest.end();
+  }
+
+  // when the dest drains, it reduces the awaitDrain counter
+  // on the source.  This would be more elegant with a .once()
+  // handler in flow(), but adding and removing repeatedly is
+  // too slow.
+  var ondrain = pipeOnDrain(src);
+  dest.on('drain', ondrain);
+
+  var cleanedUp = false;
+  function cleanup() {
+    debug('cleanup');
+    // cleanup event handlers once the pipe is broken
+    dest.removeListener('close', onclose);
+    dest.removeListener('finish', onfinish);
+    dest.removeListener('drain', ondrain);
+    dest.removeListener('error', onerror);
+    dest.removeListener('unpipe', onunpipe);
+    src.removeListener('end', onend);
+    src.removeListener('end', unpipe);
+    src.removeListener('data', ondata);
+
+    cleanedUp = true;
+
+    // if the reader is waiting for a drain event from this
+    // specific writer, then it would cause it to never start
+    // flowing again.
+    // So, if this is awaiting a drain, then we just call it now.
+    // If we don't know, then assume that we are waiting for one.
+    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
+  }
+
+  // If the user pushes more data while we're writing to dest then we'll end up
+  // in ondata again. However, we only want to increase awaitDrain once because
+  // dest will only emit one 'drain' event for the multiple writes.
+  // => Introduce a guard on increasing awaitDrain.
+  var increasedAwaitDrain = false;
+  src.on('data', ondata);
+  function ondata(chunk) {
+    debug('ondata');
+    increasedAwaitDrain = false;
+    var ret = dest.write(chunk);
+    if (false === ret && !increasedAwaitDrain) {
+      // If the user unpiped during `dest.write()`, it is possible
+      // to get stuck in a permanently paused state if that write
+      // also returned false.
+      // => Check whether `dest` is still a piping destination.
+      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
+        debug('false write response, pause', src._readableState.awaitDrain);
+        src._readableState.awaitDrain++;
+        increasedAwaitDrain = true;
+      }
+      src.pause();
+    }
+  }
+
+  // if the dest has an error, then stop piping into it.
+  // however, don't suppress the throwing behavior for this.
+  function onerror(er) {
+    debug('onerror', er);
+    unpipe();
+    dest.removeListener('error', onerror);
+    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
+  }
+
+  // Make sure our error handler is attached before userland ones.
+  prependListener(dest, 'error', onerror);
+
+  // Both close and finish should trigger unpipe, but only once.
+  function onclose() {
+    dest.removeListener('finish', onfinish);
+    unpipe();
+  }
+  dest.once('close', onclose);
+  function onfinish() {
+    debug('onfinish');
+    dest.removeListener('close', onclose);
+    unpipe();
+  }
+  dest.once('finish', onfinish);
+
+  function unpipe() {
+    debug('unpipe');
+    src.unpipe(dest);
+  }
+
+  // tell the dest that it's being piped to
+  dest.emit('pipe', src);
+
+  // start the flow if it hasn't been started already.
+  if (!state.flowing) {
+    debug('pipe resume');
+    src.resume();
+  }
+
+  return dest;
+};
+
+function pipeOnDrain(src) {
+  return function () {
+    var state = src._readableState;
+    debug('pipeOnDrain', state.awaitDrain);
+    if (state.awaitDrain) state.awaitDrain--;
+    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
+      state.flowing = true;
+      flow(src);
+    }
+  };
+}
+
+Readable.prototype.unpipe = function (dest) {
+  var state = this._readableState;
+  var unpipeInfo = { hasUnpiped: false };
+
+  // if we're not piping anywhere, then do nothing.
+  if (state.pipesCount === 0) return this;
+
+  // just one destination.  most common case.
+  if (state.pipesCount === 1) {
+    // passed in one, but it's not the right one.
+    if (dest && dest !== state.pipes) return this;
+
+    if (!dest) dest = state.pipes;
+
+    // got a match.
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
+    if (dest) dest.emit('unpipe', this, unpipeInfo);
+    return this;
+  }
+
+  // slow case. multiple pipe destinations.
+
+  if (!dest) {
+    // remove all.
+    var dests = state.pipes;
+    var len = state.pipesCount;
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
+
+    for (var i = 0; i < len; i++) {
+      dests[i].emit('unpipe', this, unpipeInfo);
+    }return this;
+  }
+
+  // try to find the right one.
+  var index = indexOf(state.pipes, dest);
+  if (index === -1) return this;
+
+  state.pipes.splice(index, 1);
+  state.pipesCount -= 1;
+  if (state.pipesCount === 1) state.pipes = state.pipes[0];
+
+  dest.emit('unpipe', this, unpipeInfo);
+
+  return this;
+};
+
+// set up data events if they are asked for
+// Ensure readable listeners eventually get something
+Readable.prototype.on = function (ev, fn) {
+  var res = Stream.prototype.on.call(this, ev, fn);
+
+  if (ev === 'data') {
+    // Start flowing on next tick if stream isn't explicitly paused
+    if (this._readableState.flowing !== false) this.resume();
+  } else if (ev === 'readable') {
+    var state = this._readableState;
+    if (!state.endEmitted && !state.readableListening) {
+      state.readableListening = state.needReadable = true;
+      state.emittedReadable = false;
+      if (!state.reading) {
+        pna.nextTick(nReadingNextTick, this);
+      } else if (state.length) {
+        emitReadable(this);
+      }
+    }
+  }
+
+  return res;
+};
+Readable.prototype.addListener = Readable.prototype.on;
+
+function nReadingNextTick(self) {
+  debug('readable nexttick read 0');
+  self.read(0);
+}
+
+// pause() and resume() are remnants of the legacy readable stream API
+// If the user uses them, then switch into old mode.
+Readable.prototype.resume = function () {
+  var state = this._readableState;
+  if (!state.flowing) {
+    debug('resume');
+    state.flowing = true;
+    resume(this, state);
+  }
+  return this;
+};
+
+function resume(stream, state) {
+  if (!state.resumeScheduled) {
+    state.resumeScheduled = true;
+    pna.nextTick(resume_, stream, state);
+  }
+}
+
+function resume_(stream, state) {
+  if (!state.reading) {
+    debug('resume read 0');
+    stream.read(0);
+  }
+
+  state.resumeScheduled = false;
+  state.awaitDrain = 0;
+  stream.emit('resume');
+  flow(stream);
+  if (state.flowing && !state.reading) stream.read(0);
+}
+
+Readable.prototype.pause = function () {
+  debug('call pause flowing=%j', this._readableState.flowing);
+  if (false !== this._readableState.flowing) {
+    debug('pause');
+    this._readableState.flowing = false;
+    this.emit('pause');
+  }
+  return this;
+};
+
+function flow(stream) {
+  var state = stream._readableState;
+  debug('flow', state.flowing);
+  while (state.flowing && stream.read() !== null) {}
+}
+
+// wrap an old-style stream as the async data source.
+// This is *not* part of the readable stream interface.
+// It is an ugly unfortunate mess of history.
+Readable.prototype.wrap = function (stream) {
+  var _this = this;
+
+  var state = this._readableState;
+  var paused = false;
+
+  stream.on('end', function () {
+    debug('wrapped end');
+    if (state.decoder && !state.ended) {
+      var chunk = state.decoder.end();
+      if (chunk && chunk.length) _this.push(chunk);
+    }
+
+    _this.push(null);
+  });
+
+  stream.on('data', function (chunk) {
+    debug('wrapped data');
+    if (state.decoder) chunk = state.decoder.write(chunk);
+
+    // don't skip over falsy values in objectMode
+    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
+
+    var ret = _this.push(chunk);
+    if (!ret) {
+      paused = true;
+      stream.pause();
+    }
+  });
+
+  // proxy all the other methods.
+  // important when wrapping filters and duplexes.
+  for (var i in stream) {
+    if (this[i] === undefined && typeof stream[i] === 'function') {
+      this[i] = function (method) {
+        return function () {
+          return stream[method].apply(stream, arguments);
+        };
+      }(i);
+    }
+  }
+
+  // proxy certain important events.
+  for (var n = 0; n < kProxyEvents.length; n++) {
+    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
+  }
+
+  // when we try to consume some more bytes, simply unpause the
+  // underlying stream.
+  this._read = function (n) {
+    debug('wrapped _read', n);
+    if (paused) {
+      paused = false;
+      stream.resume();
+    }
+  };
+
+  return this;
+};
+
+Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._readableState.highWaterMark;
+  }
+});
+
+// exposed for testing purposes only.
+Readable._fromList = fromList;
+
+// Pluck off n bytes from an array of buffers.
+// Length is the combined lengths of all the buffers in the list.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromList(n, state) {
+  // nothing buffered
+  if (state.length === 0) return null;
+
+  var ret;
+  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
+    // read it all, truncate the list
+    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
+    state.buffer.clear();
+  } else {
+    // read part of list
+    ret = fromListPartial(n, state.buffer, state.decoder);
+  }
+
+  return ret;
+}
+
+// Extracts only enough buffered data to satisfy the amount requested.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromListPartial(n, list, hasStrings) {
+  var ret;
+  if (n < list.head.data.length) {
+    // slice is the same for buffers and strings
+    ret = list.head.data.slice(0, n);
+    list.head.data = list.head.data.slice(n);
+  } else if (n === list.head.data.length) {
+    // first chunk is a perfect match
+    ret = list.shift();
+  } else {
+    // result spans more than one buffer
+    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
+  }
+  return ret;
+}
+
+// Copies a specified amount of characters from the list of buffered data
+// chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBufferString(n, list) {
+  var p = list.head;
+  var c = 1;
+  var ret = p.data;
+  n -= ret.length;
+  while (p = p.next) {
+    var str = p.data;
+    var nb = n > str.length ? str.length : n;
+    if (nb === str.length) ret += str;else ret += str.slice(0, n);
+    n -= nb;
+    if (n === 0) {
+      if (nb === str.length) {
+        ++c;
+        if (p.next) list.head = p.next;else list.head = list.tail = null;
+      } else {
+        list.head = p;
+        p.data = str.slice(nb);
+      }
+      break;
+    }
+    ++c;
+  }
+  list.length -= c;
+  return ret;
+}
+
+// Copies a specified amount of bytes from the list of buffered data chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBuffer(n, list) {
+  var ret = Buffer.allocUnsafe(n);
+  var p = list.head;
+  var c = 1;
+  p.data.copy(ret);
+  n -= p.data.length;
+  while (p = p.next) {
+    var buf = p.data;
+    var nb = n > buf.length ? buf.length : n;
+    buf.copy(ret, ret.length - n, 0, nb);
+    n -= nb;
+    if (n === 0) {
+      if (nb === buf.length) {
+        ++c;
+        if (p.next) list.head = p.next;else list.head = list.tail = null;
+      } else {
+        list.head = p;
+        p.data = buf.slice(nb);
+      }
+      break;
+    }
+    ++c;
+  }
+  list.length -= c;
+  return ret;
+}
+
+function endReadable(stream) {
+  var state = stream._readableState;
+
+  // If we get here before consuming all the bytes, then that is a
+  // bug in node.  Should never happen.
+  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
+
+  if (!state.endEmitted) {
+    state.ended = true;
+    pna.nextTick(endReadableNT, state, stream);
+  }
+}
+
+function endReadableNT(state, stream) {
+  // Check that we didn't get one last unshift.
+  if (!state.endEmitted && state.length === 0) {
+    state.endEmitted = true;
+    stream.readable = false;
+    stream.emit('end');
+  }
+}
+
+function indexOf(xs, x) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    if (xs[i] === x) return i;
+  }
+  return -1;
+}
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./_stream_duplex":66,"./internal/streams/BufferList":71,"./internal/streams/destroy":72,"./internal/streams/stream":73,"_process":64,"core-util-is":4,"events":5,"inherits":8,"isarray":10,"process-nextick-args":63,"safe-buffer":78,"string_decoder/":81,"util":2}],69:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a transform stream is a readable/writable stream where you do
+// something with the data.  Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored.  (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation.  For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes.  When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up.  When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer.  When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks.  If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk.  However,
+// a pathological inflate type of transform can cause excessive buffering
+// here.  For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output.  In this case, you could write a very small
+// amount of input, and end up with a very large amount of output.  In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform.  A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
+
+'use strict';
+
+module.exports = Transform;
+
+var Duplex = require('./_stream_duplex');
+
+/*<replacement>*/
+var util = Object.create(require('core-util-is'));
+util.inherits = require('inherits');
+/*</replacement>*/
+
+util.inherits(Transform, Duplex);
+
+function afterTransform(er, data) {
+  var ts = this._transformState;
+  ts.transforming = false;
+
+  var cb = ts.writecb;
+
+  if (!cb) {
+    return this.emit('error', new Error('write callback called multiple times'));
+  }
+
+  ts.writechunk = null;
+  ts.writecb = null;
+
+  if (data != null) // single equals check for both `null` and `undefined`
+    this.push(data);
+
+  cb(er);
+
+  var rs = this._readableState;
+  rs.reading = false;
+  if (rs.needReadable || rs.length < rs.highWaterMark) {
+    this._read(rs.highWaterMark);
+  }
+}
+
+function Transform(options) {
+  if (!(this instanceof Transform)) return new Transform(options);
+
+  Duplex.call(this, options);
+
+  this._transformState = {
+    afterTransform: afterTransform.bind(this),
+    needTransform: false,
+    transforming: false,
+    writecb: null,
+    writechunk: null,
+    writeencoding: null
+  };
+
+  // start out asking for a readable event once data is transformed.
+  this._readableState.needReadable = true;
+
+  // we have implemented the _read method, and done the other things
+  // that Readable wants before the first _read call, so unset the
+  // sync guard flag.
+  this._readableState.sync = false;
+
+  if (options) {
+    if (typeof options.transform === 'function') this._transform = options.transform;
+
+    if (typeof options.flush === 'function') this._flush = options.flush;
+  }
+
+  // When the writable side finishes, then flush out anything remaining.
+  this.on('prefinish', prefinish);
+}
+
+function prefinish() {
+  var _this = this;
+
+  if (typeof this._flush === 'function') {
+    this._flush(function (er, data) {
+      done(_this, er, data);
+    });
+  } else {
+    done(this, null, null);
+  }
+}
+
+Transform.prototype.push = function (chunk, encoding) {
+  this._transformState.needTransform = false;
+  return Duplex.prototype.push.call(this, chunk, encoding);
+};
+
+// This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side.  You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk.  If you pass
+// an error, then that'll put the hurt on the whole operation.  If you
+// never call cb(), then you'll never get another chunk.
+Transform.prototype._transform = function (chunk, encoding, cb) {
+  throw new Error('_transform() is not implemented');
+};
+
+Transform.prototype._write = function (chunk, encoding, cb) {
+  var ts = this._transformState;
+  ts.writecb = cb;
+  ts.writechunk = chunk;
+  ts.writeencoding = encoding;
+  if (!ts.transforming) {
+    var rs = this._readableState;
+    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
+  }
+};
+
+// Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+Transform.prototype._read = function (n) {
+  var ts = this._transformState;
+
+  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
+    ts.transforming = true;
+    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+  } else {
+    // mark that we need a transform, so that any data that comes in
+    // will get processed, now that we've asked for it.
+    ts.needTransform = true;
+  }
+};
+
+Transform.prototype._destroy = function (err, cb) {
+  var _this2 = this;
+
+  Duplex.prototype._destroy.call(this, err, function (err2) {
+    cb(err2);
+    _this2.emit('close');
+  });
+};
+
+function done(stream, er, data) {
+  if (er) return stream.emit('error', er);
+
+  if (data != null) // single equals check for both `null` and `undefined`
+    stream.push(data);
+
+  // if there's nothing in the write buffer, then that means
+  // that nothing more will ever be provided
+  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');
+
+  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');
+
+  return stream.push(null);
+}
+},{"./_stream_duplex":66,"core-util-is":4,"inherits":8}],70:[function(require,module,exports){
+(function (process,global,setImmediate){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
+
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+module.exports = Writable;
+
+/* <replacement> */
+function WriteReq(chunk, encoding, cb) {
+  this.chunk = chunk;
+  this.encoding = encoding;
+  this.callback = cb;
+  this.next = null;
+}
+
+// It seems a linked list but it is not
+// there will be only 2 of these for each stream
+function CorkedRequest(state) {
+  var _this = this;
+
+  this.next = null;
+  this.entry = null;
+  this.finish = function () {
+    onCorkedFinish(_this, state);
+  };
+}
+/* </replacement> */
+
+/*<replacement>*/
+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
+/*</replacement>*/
+
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Writable.WritableState = WritableState;
+
+/*<replacement>*/
+var util = Object.create(require('core-util-is'));
+util.inherits = require('inherits');
+/*</replacement>*/
+
+/*<replacement>*/
+var internalUtil = {
+  deprecate: require('util-deprecate')
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+/*<replacement>*/
+
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = global.Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+
+/*</replacement>*/
+
+var destroyImpl = require('./internal/streams/destroy');
+
+util.inherits(Writable, Stream);
+
+function nop() {}
+
+function WritableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  options = options || {};
+
+  // Duplex streams are both readable and writable, but share
+  // the same options object.
+  // However, some cases require setting options to different
+  // values for the readable and the writable sides of the duplex stream.
+  // These options can be provided separately as readableXXX and writableXXX.
+  var isDuplex = stream instanceof Duplex;
+
+  // object stream flag to indicate whether or not this stream
+  // contains buffers or objects.
+  this.objectMode = !!options.objectMode;
+
+  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
+
+  // the point at which write() starts returning false
+  // Note: 0 is a valid value, means that we always return false if
+  // the entire buffer is not flushed immediately on write()
+  var hwm = options.highWaterMark;
+  var writableHwm = options.writableHighWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+
+  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;
+
+  // cast to ints.
+  this.highWaterMark = Math.floor(this.highWaterMark);
+
+  // if _final has been called
+  this.finalCalled = false;
+
+  // drain event flag.
+  this.needDrain = false;
+  // at the start of calling end()
+  this.ending = false;
+  // when end() has been called, and returned
+  this.ended = false;
+  // when 'finish' is emitted
+  this.finished = false;
+
+  // has it been destroyed
+  this.destroyed = false;
+
+  // should we decode strings into buffers before passing to _write?
+  // this is here so that some node-core streams can optimize string
+  // handling at a lower level.
+  var noDecode = options.decodeStrings === false;
+  this.decodeStrings = !noDecode;
+
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
+
+  // not an actual buffer we keep track of, but a measurement
+  // of how much we're waiting to get pushed to some underlying
+  // socket or file.
+  this.length = 0;
+
+  // a flag to see when we're in the middle of a write.
+  this.writing = false;
+
+  // when true all writes will be buffered until .uncork() call
+  this.corked = 0;
+
+  // a flag to be able to tell if the onwrite cb is called immediately,
+  // or on a later tick.  We set this to true at first, because any
+  // actions that shouldn't happen until "later" should generally also
+  // not happen before the first write call.
+  this.sync = true;
+
+  // a flag to know if we're processing previously buffered items, which
+  // may call the _write() callback in the same tick, so that we don't
+  // end up in an overlapped onwrite situation.
+  this.bufferProcessing = false;
+
+  // the callback that's passed to _write(chunk,cb)
+  this.onwrite = function (er) {
+    onwrite(stream, er);
+  };
+
+  // the callback that the user supplies to write(chunk,encoding,cb)
+  this.writecb = null;
+
+  // the amount that is being written when _write is called.
+  this.writelen = 0;
+
+  this.bufferedRequest = null;
+  this.lastBufferedRequest = null;
+
+  // number of pending user-supplied write callbacks
+  // this must be 0 before 'finish' can be emitted
+  this.pendingcb = 0;
+
+  // emit prefinish if the only thing we're waiting for is _write cbs
+  // This is relevant for synchronous Transform streams
+  this.prefinished = false;
+
+  // True if the error was already emitted and should not be thrown again
+  this.errorEmitted = false;
+
+  // count buffered requests
+  this.bufferedRequestCount = 0;
+
+  // allocate the first CorkedRequest, there is always
+  // one allocated and free to use, and we maintain at most two
+  this.corkedRequestsFree = new CorkedRequest(this);
+}
+
+WritableState.prototype.getBuffer = function getBuffer() {
+  var current = this.bufferedRequest;
+  var out = [];
+  while (current) {
+    out.push(current);
+    current = current.next;
+  }
+  return out;
+};
+
+(function () {
+  try {
+    Object.defineProperty(WritableState.prototype, 'buffer', {
+      get: internalUtil.deprecate(function () {
+        return this.getBuffer();
+      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
+    });
+  } catch (_) {}
+})();
+
+// Test _writableState for inheritance to account for Duplex streams,
+// whose prototype chain only points to Readable.
+var realHasInstance;
+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
+  realHasInstance = Function.prototype[Symbol.hasInstance];
+  Object.defineProperty(Writable, Symbol.hasInstance, {
+    value: function (object) {
+      if (realHasInstance.call(this, object)) return true;
+      if (this !== Writable) return false;
+
+      return object && object._writableState instanceof WritableState;
+    }
+  });
+} else {
+  realHasInstance = function (object) {
+    return object instanceof this;
+  };
+}
+
+function Writable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  // Writable ctor is applied to Duplexes, too.
+  // `realHasInstance` is necessary because using plain `instanceof`
+  // would return false, as no `_writableState` property is attached.
+
+  // Trying to use the custom `instanceof` for Writable here will also break the
+  // Node.js LazyTransform implementation, which has a non-trivial getter for
+  // `_writableState` that would lead to infinite recursion.
+  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
+    return new Writable(options);
+  }
+
+  this._writableState = new WritableState(options, this);
+
+  // legacy.
+  this.writable = true;
+
+  if (options) {
+    if (typeof options.write === 'function') this._write = options.write;
+
+    if (typeof options.writev === 'function') this._writev = options.writev;
+
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+
+    if (typeof options.final === 'function') this._final = options.final;
+  }
+
+  Stream.call(this);
+}
+
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+  this.emit('error', new Error('Cannot pipe, not readable'));
+};
+
+function writeAfterEnd(stream, cb) {
+  var er = new Error('write after end');
+  // TODO: defer error events consistently everywhere, not just the cb
+  stream.emit('error', er);
+  pna.nextTick(cb, er);
+}
+
+// Checks that a user-supplied chunk is valid, especially for the particular
+// mode the stream is in. Currently this means that `null` is never accepted
+// and undefined/non-string values are only allowed in object mode.
+function validChunk(stream, state, chunk, cb) {
+  var valid = true;
+  var er = false;
+
+  if (chunk === null) {
+    er = new TypeError('May not write null values to stream');
+  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  if (er) {
+    stream.emit('error', er);
+    pna.nextTick(cb, er);
+    valid = false;
+  }
+  return valid;
+}
+
+Writable.prototype.write = function (chunk, encoding, cb) {
+  var state = this._writableState;
+  var ret = false;
+  var isBuf = !state.objectMode && _isUint8Array(chunk);
+
+  if (isBuf && !Buffer.isBuffer(chunk)) {
+    chunk = _uint8ArrayToBuffer(chunk);
+  }
+
+  if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+
+  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
+
+  if (typeof cb !== 'function') cb = nop;
+
+  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
+    state.pendingcb++;
+    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
+  }
+
+  return ret;
+};
+
+Writable.prototype.cork = function () {
+  var state = this._writableState;
+
+  state.corked++;
+};
+
+Writable.prototype.uncork = function () {
+  var state = this._writableState;
+
+  if (state.corked) {
+    state.corked--;
+
+    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+  }
+};
+
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+  // node::ParseEncoding() requires lower case.
+  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
+  this._writableState.defaultEncoding = encoding;
+  return this;
+};
+
+function decodeChunk(state, chunk, encoding) {
+  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+    chunk = Buffer.from(chunk, encoding);
+  }
+  return chunk;
+}
+
+Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._writableState.highWaterMark;
+  }
+});
+
+// if we're already writing something, then just put this
+// in the queue, and wait our turn.  Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+  if (!isBuf) {
+    var newChunk = decodeChunk(state, chunk, encoding);
+    if (chunk !== newChunk) {
+      isBuf = true;
+      encoding = 'buffer';
+      chunk = newChunk;
+    }
+  }
+  var len = state.objectMode ? 1 : chunk.length;
+
+  state.length += len;
+
+  var ret = state.length < state.highWaterMark;
+  // we must ensure that previous needDrain will not be reset to false.
+  if (!ret) state.needDrain = true;
+
+  if (state.writing || state.corked) {
+    var last = state.lastBufferedRequest;
+    state.lastBufferedRequest = {
+      chunk: chunk,
+      encoding: encoding,
+      isBuf: isBuf,
+      callback: cb,
+      next: null
+    };
+    if (last) {
+      last.next = state.lastBufferedRequest;
+    } else {
+      state.bufferedRequest = state.lastBufferedRequest;
+    }
+    state.bufferedRequestCount += 1;
+  } else {
+    doWrite(stream, state, false, len, chunk, encoding, cb);
+  }
+
+  return ret;
+}
+
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+  state.writelen = len;
+  state.writecb = cb;
+  state.writing = true;
+  state.sync = true;
+  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+  state.sync = false;
+}
+
+function onwriteError(stream, state, sync, er, cb) {
+  --state.pendingcb;
+
+  if (sync) {
+    // defer the callback if we are being called synchronously
+    // to avoid piling up things on the stack
+    pna.nextTick(cb, er);
+    // this can emit finish, and it will always happen
+    // after error
+    pna.nextTick(finishMaybe, stream, state);
+    stream._writableState.errorEmitted = true;
+    stream.emit('error', er);
+  } else {
+    // the caller expect this to happen before if
+    // it is async
+    cb(er);
+    stream._writableState.errorEmitted = true;
+    stream.emit('error', er);
+    // this can emit finish, but finish must
+    // always follow error
+    finishMaybe(stream, state);
+  }
+}
+
+function onwriteStateUpdate(state) {
+  state.writing = false;
+  state.writecb = null;
+  state.length -= state.writelen;
+  state.writelen = 0;
+}
+
+function onwrite(stream, er) {
+  var state = stream._writableState;
+  var sync = state.sync;
+  var cb = state.writecb;
+
+  onwriteStateUpdate(state);
+
+  if (er) onwriteError(stream, state, sync, er, cb);else {
+    // Check if we're actually ready to finish, but don't emit yet
+    var finished = needFinish(state);
+
+    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+      clearBuffer(stream, state);
+    }
+
+    if (sync) {
+      /*<replacement>*/
+      asyncWrite(afterWrite, stream, state, finished, cb);
+      /*</replacement>*/
+    } else {
+      afterWrite(stream, state, finished, cb);
+    }
+  }
+}
+
+function afterWrite(stream, state, finished, cb) {
+  if (!finished) onwriteDrain(stream, state);
+  state.pendingcb--;
+  cb();
+  finishMaybe(stream, state);
+}
+
+// Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+function onwriteDrain(stream, state) {
+  if (state.length === 0 && state.needDrain) {
+    state.needDrain = false;
+    stream.emit('drain');
+  }
+}
+
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+  state.bufferProcessing = true;
+  var entry = state.bufferedRequest;
+
+  if (stream._writev && entry && entry.next) {
+    // Fast case, write everything using _writev()
+    var l = state.bufferedRequestCount;
+    var buffer = new Array(l);
+    var holder = state.corkedRequestsFree;
+    holder.entry = entry;
+
+    var count = 0;
+    var allBuffers = true;
+    while (entry) {
+      buffer[count] = entry;
+      if (!entry.isBuf) allBuffers = false;
+      entry = entry.next;
+      count += 1;
+    }
+    buffer.allBuffers = allBuffers;
+
+    doWrite(stream, state, true, state.length, buffer, '', holder.finish);
+
+    // doWrite is almost always async, defer these to save a bit of time
+    // as the hot path ends with doWrite
+    state.pendingcb++;
+    state.lastBufferedRequest = null;
+    if (holder.next) {
+      state.corkedRequestsFree = holder.next;
+      holder.next = null;
+    } else {
+      state.corkedRequestsFree = new CorkedRequest(state);
+    }
+    state.bufferedRequestCount = 0;
+  } else {
+    // Slow case, write chunks one-by-one
+    while (entry) {
+      var chunk = entry.chunk;
+      var encoding = entry.encoding;
+      var cb = entry.callback;
+      var len = state.objectMode ? 1 : chunk.length;
+
+      doWrite(stream, state, false, len, chunk, encoding, cb);
+      entry = entry.next;
+      state.bufferedRequestCount--;
+      // if we didn't call the onwrite immediately, then
+      // it means that we need to wait until it does.
+      // also, that means that the chunk and cb are currently
+      // being processed, so move the buffer counter past them.
+      if (state.writing) {
+        break;
+      }
+    }
+
+    if (entry === null) state.lastBufferedRequest = null;
+  }
+
+  state.bufferedRequest = entry;
+  state.bufferProcessing = false;
+}
+
+Writable.prototype._write = function (chunk, encoding, cb) {
+  cb(new Error('_write() is not implemented'));
+};
+
+Writable.prototype._writev = null;
+
+Writable.prototype.end = function (chunk, encoding, cb) {
+  var state = this._writableState;
+
+  if (typeof chunk === 'function') {
+    cb = chunk;
+    chunk = null;
+    encoding = null;
+  } else if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+
+  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
+
+  // .end() fully uncorks
+  if (state.corked) {
+    state.corked = 1;
+    this.uncork();
+  }
+
+  // ignore unnecessary end() calls.
+  if (!state.ending && !state.finished) endWritable(this, state, cb);
+};
+
+function needFinish(state) {
+  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+}
+function callFinal(stream, state) {
+  stream._final(function (err) {
+    state.pendingcb--;
+    if (err) {
+      stream.emit('error', err);
+    }
+    state.prefinished = true;
+    stream.emit('prefinish');
+    finishMaybe(stream, state);
+  });
+}
+function prefinish(stream, state) {
+  if (!state.prefinished && !state.finalCalled) {
+    if (typeof stream._final === 'function') {
+      state.pendingcb++;
+      state.finalCalled = true;
+      pna.nextTick(callFinal, stream, state);
+    } else {
+      state.prefinished = true;
+      stream.emit('prefinish');
+    }
+  }
+}
+
+function finishMaybe(stream, state) {
+  var need = needFinish(state);
+  if (need) {
+    prefinish(stream, state);
+    if (state.pendingcb === 0) {
+      state.finished = true;
+      stream.emit('finish');
+    }
+  }
+  return need;
+}
+
+function endWritable(stream, state, cb) {
+  state.ending = true;
+  finishMaybe(stream, state);
+  if (cb) {
+    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
+  }
+  state.ended = true;
+  stream.writable = false;
+}
+
+function onCorkedFinish(corkReq, state, err) {
+  var entry = corkReq.entry;
+  corkReq.entry = null;
+  while (entry) {
+    var cb = entry.callback;
+    state.pendingcb--;
+    cb(err);
+    entry = entry.next;
+  }
+  if (state.corkedRequestsFree) {
+    state.corkedRequestsFree.next = corkReq;
+  } else {
+    state.corkedRequestsFree = corkReq;
+  }
+}
+
+Object.defineProperty(Writable.prototype, 'destroyed', {
+  get: function () {
+    if (this._writableState === undefined) {
+      return false;
+    }
+    return this._writableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._writableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._writableState.destroyed = value;
+  }
+});
+
+Writable.prototype.destroy = destroyImpl.destroy;
+Writable.prototype._undestroy = destroyImpl.undestroy;
+Writable.prototype._destroy = function (err, cb) {
+  this.end();
+  cb(err);
+};
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("timers").setImmediate)
+},{"./_stream_duplex":66,"./internal/streams/destroy":72,"./internal/streams/stream":73,"_process":64,"core-util-is":4,"inherits":8,"process-nextick-args":63,"safe-buffer":78,"timers":82,"util-deprecate":83}],71:[function(require,module,exports){
+'use strict';
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var Buffer = require('safe-buffer').Buffer;
+var util = require('util');
+
+function copyBuffer(src, target, offset) {
+  src.copy(target, offset);
+}
+
+module.exports = function () {
+  function BufferList() {
+    _classCallCheck(this, BufferList);
+
+    this.head = null;
+    this.tail = null;
+    this.length = 0;
+  }
+
+  BufferList.prototype.push = function push(v) {
+    var entry = { data: v, next: null };
+    if (this.length > 0) this.tail.next = entry;else this.head = entry;
+    this.tail = entry;
+    ++this.length;
+  };
+
+  BufferList.prototype.unshift = function unshift(v) {
+    var entry = { data: v, next: this.head };
+    if (this.length === 0) this.tail = entry;
+    this.head = entry;
+    ++this.length;
+  };
+
+  BufferList.prototype.shift = function shift() {
+    if (this.length === 0) return;
+    var ret = this.head.data;
+    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+    --this.length;
+    return ret;
+  };
+
+  BufferList.prototype.clear = function clear() {
+    this.head = this.tail = null;
+    this.length = 0;
+  };
+
+  BufferList.prototype.join = function join(s) {
+    if (this.length === 0) return '';
+    var p = this.head;
+    var ret = '' + p.data;
+    while (p = p.next) {
+      ret += s + p.data;
+    }return ret;
+  };
+
+  BufferList.prototype.concat = function concat(n) {
+    if (this.length === 0) return Buffer.alloc(0);
+    if (this.length === 1) return this.head.data;
+    var ret = Buffer.allocUnsafe(n >>> 0);
+    var p = this.head;
+    var i = 0;
+    while (p) {
+      copyBuffer(p.data, ret, i);
+      i += p.data.length;
+      p = p.next;
+    }
+    return ret;
+  };
+
+  return BufferList;
+}();
+
+if (util && util.inspect && util.inspect.custom) {
+  module.exports.prototype[util.inspect.custom] = function () {
+    var obj = util.inspect({ length: this.length });
+    return this.constructor.name + ' ' + obj;
+  };
+}
+},{"safe-buffer":78,"util":2}],72:[function(require,module,exports){
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+// undocumented cb() API, needed for core, not for public API
+function destroy(err, cb) {
+  var _this = this;
+
+  var readableDestroyed = this._readableState && this._readableState.destroyed;
+  var writableDestroyed = this._writableState && this._writableState.destroyed;
+
+  if (readableDestroyed || writableDestroyed) {
+    if (cb) {
+      cb(err);
+    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
+      pna.nextTick(emitErrorNT, this, err);
+    }
+    return this;
+  }
+
+  // we set destroyed to true before firing error callbacks in order
+  // to make it re-entrance safe in case destroy() is called within callbacks
+
+  if (this._readableState) {
+    this._readableState.destroyed = true;
+  }
+
+  // if this is a duplex stream mark the writable part as destroyed as well
+  if (this._writableState) {
+    this._writableState.destroyed = true;
+  }
+
+  this._destroy(err || null, function (err) {
+    if (!cb && err) {
+      pna.nextTick(emitErrorNT, _this, err);
+      if (_this._writableState) {
+        _this._writableState.errorEmitted = true;
+      }
+    } else if (cb) {
+      cb(err);
+    }
+  });
+
+  return this;
+}
+
+function undestroy() {
+  if (this._readableState) {
+    this._readableState.destroyed = false;
+    this._readableState.reading = false;
+    this._readableState.ended = false;
+    this._readableState.endEmitted = false;
+  }
+
+  if (this._writableState) {
+    this._writableState.destroyed = false;
+    this._writableState.ended = false;
+    this._writableState.ending = false;
+    this._writableState.finished = false;
+    this._writableState.errorEmitted = false;
+  }
+}
+
+function emitErrorNT(self, err) {
+  self.emit('error', err);
+}
+
+module.exports = {
+  destroy: destroy,
+  undestroy: undestroy
+};
+},{"process-nextick-args":63}],73:[function(require,module,exports){
+module.exports = require('events').EventEmitter;
+
+},{"events":5}],74:[function(require,module,exports){
+module.exports = require('./readable').PassThrough
+
+},{"./readable":75}],75:[function(require,module,exports){
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Stream = exports;
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
+
+},{"./lib/_stream_duplex.js":66,"./lib/_stream_passthrough.js":67,"./lib/_stream_readable.js":68,"./lib/_stream_transform.js":69,"./lib/_stream_writable.js":70}],76:[function(require,module,exports){
+module.exports = require('./readable').Transform
+
+},{"./readable":75}],77:[function(require,module,exports){
+module.exports = require('./lib/_stream_writable.js');
+
+},{"./lib/_stream_writable.js":70}],78:[function(require,module,exports){
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+  for (var key in src) {
+    dst[key] = src[key]
+  }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+  module.exports = buffer
+} else {
+  // Copy properties from require('buffer')
+  copyProps(buffer, exports)
+  exports.Buffer = SafeBuffer
+}
+
+function SafeBuffer (arg, encodingOrOffset, length) {
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
+
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+  if (typeof arg === 'number') {
+    throw new TypeError('Argument must not be a number')
+  }
+  return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.alloc = function (size, fill, encoding) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  var buf = Buffer(size)
+  if (fill !== undefined) {
+    if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
+    }
+  } else {
+    buf.fill(0)
+  }
+  return buf
+}
+
+SafeBuffer.allocUnsafe = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return Buffer(size)
+}
+
+SafeBuffer.allocUnsafeSlow = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return buffer.SlowBuffer(size)
+}
+
+},{"buffer":3}],79:[function(require,module,exports){
+(function (setImmediate){
+'use strict';
+module.exports = typeof setImmediate === 'function' ? setImmediate :
+	function setImmediate() {
+		var args = [].slice.apply(arguments);
+		args.splice(1, 0, 0);
+		setTimeout.apply(null, args);
+	};
+
+}).call(this,require("timers").setImmediate)
+},{"timers":82}],80:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+module.exports = Stream;
+
+var EE = require('events').EventEmitter;
+var inherits = require('inherits');
+
+inherits(Stream, EE);
+Stream.Readable = require('readable-stream/readable.js');
+Stream.Writable = require('readable-stream/writable.js');
+Stream.Duplex = require('readable-stream/duplex.js');
+Stream.Transform = require('readable-stream/transform.js');
+Stream.PassThrough = require('readable-stream/passthrough.js');
+
+// Backwards-compat with node 0.4.x
+Stream.Stream = Stream;
+
+
+
+// old-style streams.  Note that the pipe method (the only relevant
+// part of this class) is overridden in the Readable class.
+
+function Stream() {
+  EE.call(this);
+}
+
+Stream.prototype.pipe = function(dest, options) {
+  var source = this;
+
+  function ondata(chunk) {
+    if (dest.writable) {
+      if (false === dest.write(chunk) && source.pause) {
+        source.pause();
+      }
+    }
+  }
+
+  source.on('data', ondata);
+
+  function ondrain() {
+    if (source.readable && source.resume) {
+      source.resume();
+    }
+  }
+
+  dest.on('drain', ondrain);
+
+  // If the 'end' option is not supplied, dest.end() will be called when
+  // source gets the 'end' or 'close' events.  Only dest.end() once.
+  if (!dest._isStdio && (!options || options.end !== false)) {
+    source.on('end', onend);
+    source.on('close', onclose);
+  }
+
+  var didOnEnd = false;
+  function onend() {
+    if (didOnEnd) return;
+    didOnEnd = true;
+
+    dest.end();
+  }
+
+
+  function onclose() {
+    if (didOnEnd) return;
+    didOnEnd = true;
+
+    if (typeof dest.destroy === 'function') dest.destroy();
+  }
+
+  // don't leave dangling pipes when there are errors.
+  function onerror(er) {
+    cleanup();
+    if (EE.listenerCount(this, 'error') === 0) {
+      throw er; // Unhandled stream error in pipe.
+    }
+  }
+
+  source.on('error', onerror);
+  dest.on('error', onerror);
+
+  // remove all the event listeners that were added.
+  function cleanup() {
+    source.removeListener('data', ondata);
+    dest.removeListener('drain', ondrain);
+
+    source.removeListener('end', onend);
+    source.removeListener('close', onclose);
+
+    source.removeListener('error', onerror);
+    dest.removeListener('error', onerror);
+
+    source.removeListener('end', cleanup);
+    source.removeListener('close', cleanup);
+
+    dest.removeListener('close', cleanup);
+  }
+
+  source.on('end', cleanup);
+  source.on('close', cleanup);
+
+  dest.on('close', cleanup);
+
+  dest.emit('pipe', source);
+
+  // Allow for unix-like usage: A.pipe(B).pipe(C)
+  return dest;
+};
+
+},{"events":5,"inherits":8,"readable-stream/duplex.js":65,"readable-stream/passthrough.js":74,"readable-stream/readable.js":75,"readable-stream/transform.js":76,"readable-stream/writable.js":77}],81:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+
+/*<replacement>*/
+
+var Buffer = require('safe-buffer').Buffer;
+/*</replacement>*/
+
+var isEncoding = Buffer.isEncoding || function (encoding) {
+  encoding = '' + encoding;
+  switch (encoding && encoding.toLowerCase()) {
+    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
+      return true;
+    default:
+      return false;
+  }
+};
+
+function _normalizeEncoding(enc) {
+  if (!enc) return 'utf8';
+  var retried;
+  while (true) {
+    switch (enc) {
+      case 'utf8':
+      case 'utf-8':
+        return 'utf8';
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return 'utf16le';
+      case 'latin1':
+      case 'binary':
+        return 'latin1';
+      case 'base64':
+      case 'ascii':
+      case 'hex':
+        return enc;
+      default:
+        if (retried) return; // undefined
+        enc = ('' + enc).toLowerCase();
+        retried = true;
+    }
+  }
+};
+
+// Do not cache `Buffer.isEncoding` when checking encoding names as some
+// modules monkey-patch it to support additional encodings
+function normalizeEncoding(enc) {
+  var nenc = _normalizeEncoding(enc);
+  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
+  return nenc || enc;
+}
+
+// StringDecoder provides an interface for efficiently splitting a series of
+// buffers into a series of JS strings without breaking apart multi-byte
+// characters.
+exports.StringDecoder = StringDecoder;
+function StringDecoder(encoding) {
+  this.encoding = normalizeEncoding(encoding);
+  var nb;
+  switch (this.encoding) {
+    case 'utf16le':
+      this.text = utf16Text;
+      this.end = utf16End;
+      nb = 4;
+      break;
+    case 'utf8':
+      this.fillLast = utf8FillLast;
+      nb = 4;
+      break;
+    case 'base64':
+      this.text = base64Text;
+      this.end = base64End;
+      nb = 3;
+      break;
+    default:
+      this.write = simpleWrite;
+      this.end = simpleEnd;
+      return;
+  }
+  this.lastNeed = 0;
+  this.lastTotal = 0;
+  this.lastChar = Buffer.allocUnsafe(nb);
+}
+
+StringDecoder.prototype.write = function (buf) {
+  if (buf.length === 0) return '';
+  var r;
+  var i;
+  if (this.lastNeed) {
+    r = this.fillLast(buf);
+    if (r === undefined) return '';
+    i = this.lastNeed;
+    this.lastNeed = 0;
+  } else {
+    i = 0;
+  }
+  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
+  return r || '';
+};
+
+StringDecoder.prototype.end = utf8End;
+
+// Returns only complete characters in a Buffer
+StringDecoder.prototype.text = utf8Text;
+
+// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
+StringDecoder.prototype.fillLast = function (buf) {
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
+  this.lastNeed -= buf.length;
+};
+
+// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
+// continuation byte. If an invalid byte is detected, -2 is returned.
+function utf8CheckByte(byte) {
+  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
+  return byte >> 6 === 0x02 ? -1 : -2;
+}
+
+// Checks at most 3 bytes at the end of a Buffer in order to detect an
+// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
+// needed to complete the UTF-8 character (if applicable) are returned.
+function utf8CheckIncomplete(self, buf, i) {
+  var j = buf.length - 1;
+  if (j < i) return 0;
+  var nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 1;
+    return nb;
+  }
+  if (--j < i || nb === -2) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 2;
+    return nb;
+  }
+  if (--j < i || nb === -2) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) {
+      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
+    }
+    return nb;
+  }
+  return 0;
+}
+
+// Validates as many continuation bytes for a multi-byte UTF-8 character as
+// needed or are available. If we see a non-continuation byte where we expect
+// one, we "replace" the validated continuation bytes we've seen so far with
+// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
+// behavior. The continuation byte check is included three times in the case
+// where all of the continuation bytes for a character exist in the same buffer.
+// It is also done this way as a slight performance increase instead of using a
+// loop.
+function utf8CheckExtraBytes(self, buf, p) {
+  if ((buf[0] & 0xC0) !== 0x80) {
+    self.lastNeed = 0;
+    return '\ufffd';
+  }
+  if (self.lastNeed > 1 && buf.length > 1) {
+    if ((buf[1] & 0xC0) !== 0x80) {
+      self.lastNeed = 1;
+      return '\ufffd';
+    }
+    if (self.lastNeed > 2 && buf.length > 2) {
+      if ((buf[2] & 0xC0) !== 0x80) {
+        self.lastNeed = 2;
+        return '\ufffd';
+      }
+    }
+  }
+}
+
+// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
+function utf8FillLast(buf) {
+  var p = this.lastTotal - this.lastNeed;
+  var r = utf8CheckExtraBytes(this, buf, p);
+  if (r !== undefined) return r;
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, p, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, p, 0, buf.length);
+  this.lastNeed -= buf.length;
+}
+
+// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
+// partial character, the character's bytes are buffered until the required
+// number of bytes are available.
+function utf8Text(buf, i) {
+  var total = utf8CheckIncomplete(this, buf, i);
+  if (!this.lastNeed) return buf.toString('utf8', i);
+  this.lastTotal = total;
+  var end = buf.length - (total - this.lastNeed);
+  buf.copy(this.lastChar, 0, end);
+  return buf.toString('utf8', i, end);
+}
+
+// For UTF-8, a replacement character is added when ending on a partial
+// character.
+function utf8End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + '\ufffd';
+  return r;
+}
+
+// UTF-16LE typically needs two bytes per character, but even if we have an even
+// number of bytes available, we need to check if we end on a leading/high
+// surrogate. In that case, we need to wait for the next two bytes in order to
+// decode the last character properly.
+function utf16Text(buf, i) {
+  if ((buf.length - i) % 2 === 0) {
+    var r = buf.toString('utf16le', i);
+    if (r) {
+      var c = r.charCodeAt(r.length - 1);
+      if (c >= 0xD800 && c <= 0xDBFF) {
+        this.lastNeed = 2;
+        this.lastTotal = 4;
+        this.lastChar[0] = buf[buf.length - 2];
+        this.lastChar[1] = buf[buf.length - 1];
+        return r.slice(0, -1);
+      }
+    }
+    return r;
+  }
+  this.lastNeed = 1;
+  this.lastTotal = 2;
+  this.lastChar[0] = buf[buf.length - 1];
+  return buf.toString('utf16le', i, buf.length - 1);
+}
+
+// For UTF-16LE we do not explicitly append special replacement characters if we
+// end on a partial character, we simply let v8 handle that.
+function utf16End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) {
+    var end = this.lastTotal - this.lastNeed;
+    return r + this.lastChar.toString('utf16le', 0, end);
+  }
+  return r;
+}
+
+function base64Text(buf, i) {
+  var n = (buf.length - i) % 3;
+  if (n === 0) return buf.toString('base64', i);
+  this.lastNeed = 3 - n;
+  this.lastTotal = 3;
+  if (n === 1) {
+    this.lastChar[0] = buf[buf.length - 1];
+  } else {
+    this.lastChar[0] = buf[buf.length - 2];
+    this.lastChar[1] = buf[buf.length - 1];
+  }
+  return buf.toString('base64', i, buf.length - n);
+}
+
+function base64End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
+  return r;
+}
+
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+  return buf.toString(this.encoding);
+}
+
+function simpleEnd(buf) {
+  return buf && buf.length ? this.write(buf) : '';
+}
+},{"safe-buffer":78}],82:[function(require,module,exports){
+(function (setImmediate,clearImmediate){
+var nextTick = require('process/browser.js').nextTick;
+var apply = Function.prototype.apply;
+var slice = Array.prototype.slice;
+var immediateIds = {};
+var nextImmediateId = 0;
+
+// DOM APIs, for completeness
+
+exports.setTimeout = function() {
+  return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout);
+};
+exports.setInterval = function() {
+  return new Timeout(apply.call(setInterval, window, arguments), clearInterval);
+};
+exports.clearTimeout =
+exports.clearInterval = function(timeout) { timeout.close(); };
+
+function Timeout(id, clearFn) {
+  this._id = id;
+  this._clearFn = clearFn;
+}
+Timeout.prototype.unref = Timeout.prototype.ref = function() {};
+Timeout.prototype.close = function() {
+  this._clearFn.call(window, this._id);
+};
+
+// Does not start the time, just sets up the members needed.
+exports.enroll = function(item, msecs) {
+  clearTimeout(item._idleTimeoutId);
+  item._idleTimeout = msecs;
+};
+
+exports.unenroll = function(item) {
+  clearTimeout(item._idleTimeoutId);
+  item._idleTimeout = -1;
+};
+
+exports._unrefActive = exports.active = function(item) {
+  clearTimeout(item._idleTimeoutId);
+
+  var msecs = item._idleTimeout;
+  if (msecs >= 0) {
+    item._idleTimeoutId = setTimeout(function onTimeout() {
+      if (item._onTimeout)
+        item._onTimeout();
+    }, msecs);
+  }
+};
+
+// That's not how node.js implements it but the exposed api is the same.
+exports.setImmediate = typeof setImmediate === "function" ? setImmediate : function(fn) {
+  var id = nextImmediateId++;
+  var args = arguments.length < 2 ? false : slice.call(arguments, 1);
+
+  immediateIds[id] = true;
+
+  nextTick(function onNextTick() {
+    if (immediateIds[id]) {
+      // fn.call() is faster so we optimize for the common use-case
+      // @see http://jsperf.com/call-apply-segu
+      if (args) {
+        fn.apply(null, args);
+      } else {
+        fn.call(null);
+      }
+      // Prevent ids from leaking
+      exports.clearImmediate(id);
+    }
+  });
+
+  return id;
+};
+
+exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : function(id) {
+  delete immediateIds[id];
+};
+}).call(this,require("timers").setImmediate,require("timers").clearImmediate)
+},{"process/browser.js":64,"timers":82}],83:[function(require,module,exports){
+(function (global){
+
+/**
+ * Module exports.
+ */
+
+module.exports = deprecate;
+
+/**
+ * Mark that a method should not be used.
+ * Returns a modified function which warns once by default.
+ *
+ * If `localStorage.noDeprecation = true` is set, then it is a no-op.
+ *
+ * If `localStorage.throwDeprecation = true` is set, then deprecated functions
+ * will throw an Error when invoked.
+ *
+ * If `localStorage.traceDeprecation = true` is set, then deprecated functions
+ * will invoke `console.trace()` instead of `console.error()`.
+ *
+ * @param {Function} fn - the function to deprecate
+ * @param {String} msg - the string to print to the console when `fn` is invoked
+ * @returns {Function} a new "deprecated" version of `fn`
+ * @api public
+ */
+
+function deprecate (fn, msg) {
+  if (config('noDeprecation')) {
+    return fn;
+  }
+
+  var warned = false;
+  function deprecated() {
+    if (!warned) {
+      if (config('throwDeprecation')) {
+        throw new Error(msg);
+      } else if (config('traceDeprecation')) {
+        console.trace(msg);
+      } else {
+        console.warn(msg);
+      }
+      warned = true;
+    }
+    return fn.apply(this, arguments);
+  }
+
+  return deprecated;
+}
+
+/**
+ * Checks `localStorage` for boolean values for the given `name`.
+ *
+ * @param {String} name
+ * @returns {Boolean}
+ * @api private
+ */
+
+function config (name) {
+  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
+  try {
+    if (!global.localStorage) return false;
+  } catch (_) {
+    return false;
+  }
+  var val = global.localStorage[name];
+  if (null == val) return false;
+  return String(val).toLowerCase() === 'true';
+}
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],84:[function(require,module,exports){
+"use strict";
+
+var __importDefault = void 0 && (void 0).__importDefault || function (mod) {
+  return mod && mod.__esModule ? mod : {
+    "default": mod
+  };
+};
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.HandleZip = void 0;
+
+var jszip_1 = __importDefault(require("jszip"));
+
+var method_1 = require("./common/method");
+
+var HandleZip =
+/** @class */
+function () {
+  function HandleZip(file) {
+    // Support nodejs fs to read files
+    // if(file instanceof File){
+    this.uploadFile = file; // }
+  }
+
+  HandleZip.prototype.unzipFile = function (successFunc, errorFunc) {
+    // var new_zip:JSZip = new JSZip();
+    jszip_1["default"].loadAsync(this.uploadFile) // 1) read the Blob
+    .then(function (zip) {
+      var fileList = {},
+          lastIndex = Object.keys(zip.files).length,
+          index = 0;
+      zip.forEach(function (relativePath, zipEntry) {
+        var fileName = zipEntry.name;
+        var fileNameArr = fileName.split(".");
+        var suffix = fileNameArr[fileNameArr.length - 1].toLowerCase();
+        var fileType = "string";
+
+        if (suffix in {
+          "png": 1,
+          "jpeg": 1,
+          "jpg": 1,
+          "gif": 1,
+          "bmp": 1,
+          "tif": 1,
+          "webp": 1
+        }) {
+          fileType = "base64";
+        } else if (suffix == "emf") {
+          fileType = "arraybuffer";
+        }
+
+        zipEntry.async(fileType).then(function (data) {
+          if (fileType == "base64") {
+            data = "data:image/" + suffix + ";base64," + data;
+          }
+
+          fileList[zipEntry.name] = data; // console.log(lastIndex, index);
+
+          if (lastIndex == index + 1) {
+            successFunc(fileList);
+          }
+
+          index++;
+        });
+      });
+    }, function (e) {
+      errorFunc(e);
+    });
+  };
+
+  HandleZip.prototype.unzipFileByUrl = function (url, successFunc, errorFunc) {
+    var new_zip = new jszip_1["default"]();
+    method_1.getBinaryContent(url, function (err, data) {
+      if (err) {
+        throw err; // or handle err
+      }
+
+      jszip_1["default"].loadAsync(data).then(function (zip) {
+        var fileList = {},
+            lastIndex = Object.keys(zip.files).length,
+            index = 0;
+        zip.forEach(function (relativePath, zipEntry) {
+          var fileName = zipEntry.name;
+          var fileNameArr = fileName.split(".");
+          var suffix = fileNameArr[fileNameArr.length - 1].toLowerCase();
+          var fileType = "string";
+
+          if (suffix in {
+            "png": 1,
+            "jpeg": 1,
+            "jpg": 1,
+            "gif": 1,
+            "bmp": 1,
+            "tif": 1,
+            "webp": 1
+          }) {
+            fileType = "base64";
+          } else if (suffix == "emf") {
+            fileType = "arraybuffer";
+          }
+
+          zipEntry.async(fileType).then(function (data) {
+            if (fileType == "base64") {
+              data = "data:image/" + suffix + ";base64," + data;
+            }
+
+            fileList[zipEntry.name] = data; // console.log(lastIndex, index);
+
+            if (lastIndex == index + 1) {
+              successFunc(fileList);
+            }
+
+            index++;
+          });
+        });
+      }, function (e) {
+        errorFunc(e);
+      });
+    });
+  };
+
+  HandleZip.prototype.newZipFile = function () {
+    var zip = new jszip_1["default"]();
+    this.workBook = zip;
+  }; //title:"nested/hello.txt", content:"Hello Worldasdfasfasdfasfasfasfasfasdfas"
+
+
+  HandleZip.prototype.addToZipFile = function (title, content) {
+    if (this.workBook == null) {
+      var zip = new jszip_1["default"]();
+      this.workBook = zip;
+    }
+
+    this.workBook.file(title, content);
+  };
+
+  return HandleZip;
+}();
+
+exports.HandleZip = HandleZip;
+
+},{"./common/method":93,"jszip":20}],85:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.LuckyImageBase = exports.LuckysheetCalcChain = exports.LuckySheetConfigMerge = exports.LuckySheetborderInfoCellValueStyle = exports.LuckySheetborderInfoCellValue = exports.LuckySheetborderInfoCellForImp = exports.LuckyConfig = exports.LuckyInlineString = exports.LuckySheetCellFormat = exports.LuckySheetCelldataValue = exports.LuckySheetCelldataBase = exports.LuckyFileInfo = exports.LuckySheetBase = exports.LuckyFileBase = void 0;
+
+var LuckyFileBase =
+/** @class */
+function () {
+  function LuckyFileBase() {}
+
+  return LuckyFileBase;
+}();
+
+exports.LuckyFileBase = LuckyFileBase;
+
+var LuckySheetBase =
+/** @class */
+function () {
+  function LuckySheetBase() {}
+
+  return LuckySheetBase;
+}();
+
+exports.LuckySheetBase = LuckySheetBase;
+
+var LuckyFileInfo =
+/** @class */
+function () {
+  function LuckyFileInfo() {}
+
+  return LuckyFileInfo;
+}();
+
+exports.LuckyFileInfo = LuckyFileInfo;
+
+var LuckySheetCelldataBase =
+/** @class */
+function () {
+  function LuckySheetCelldataBase() {}
+
+  return LuckySheetCelldataBase;
+}();
+
+exports.LuckySheetCelldataBase = LuckySheetCelldataBase;
+
+var LuckySheetCelldataValue =
+/** @class */
+function () {
+  function LuckySheetCelldataValue() {}
+
+  return LuckySheetCelldataValue;
+}();
+
+exports.LuckySheetCelldataValue = LuckySheetCelldataValue;
+
+var LuckySheetCellFormat =
+/** @class */
+function () {
+  function LuckySheetCellFormat() {}
+
+  return LuckySheetCellFormat;
+}();
+
+exports.LuckySheetCellFormat = LuckySheetCellFormat;
+
+var LuckyInlineString =
+/** @class */
+function () {
+  function LuckyInlineString() {}
+
+  return LuckyInlineString;
+}();
+
+exports.LuckyInlineString = LuckyInlineString;
+
+var LuckyConfig =
+/** @class */
+function () {
+  function LuckyConfig() {}
+
+  return LuckyConfig;
+}();
+
+exports.LuckyConfig = LuckyConfig;
+
+var LuckySheetborderInfoCellForImp =
+/** @class */
+function () {
+  function LuckySheetborderInfoCellForImp() {}
+
+  return LuckySheetborderInfoCellForImp;
+}();
+
+exports.LuckySheetborderInfoCellForImp = LuckySheetborderInfoCellForImp;
+
+var LuckySheetborderInfoCellValue =
+/** @class */
+function () {
+  function LuckySheetborderInfoCellValue() {}
+
+  return LuckySheetborderInfoCellValue;
+}();
+
+exports.LuckySheetborderInfoCellValue = LuckySheetborderInfoCellValue;
+
+var LuckySheetborderInfoCellValueStyle =
+/** @class */
+function () {
+  function LuckySheetborderInfoCellValueStyle() {}
+
+  return LuckySheetborderInfoCellValueStyle;
+}();
+
+exports.LuckySheetborderInfoCellValueStyle = LuckySheetborderInfoCellValueStyle;
+
+var LuckySheetConfigMerge =
+/** @class */
+function () {
+  function LuckySheetConfigMerge() {}
+
+  return LuckySheetConfigMerge;
+}();
+
+exports.LuckySheetConfigMerge = LuckySheetConfigMerge;
+
+var LuckysheetCalcChain =
+/** @class */
+function () {
+  function LuckysheetCalcChain() {}
+
+  return LuckysheetCalcChain;
+}();
+
+exports.LuckysheetCalcChain = LuckysheetCalcChain;
+
+var LuckyImageBase =
+/** @class */
+function () {
+  function LuckyImageBase() {}
+
+  return LuckyImageBase;
+}();
+
+exports.LuckyImageBase = LuckyImageBase;
+
+},{}],86:[function(require,module,exports){
+"use strict";
+
+var __extends = void 0 && (void 0).__extends || function () {
+  var _extendStatics = function extendStatics(d, b) {
+    _extendStatics = Object.setPrototypeOf || {
+      __proto__: []
+    } instanceof Array && function (d, b) {
+      d.__proto__ = b;
+    } || function (d, b) {
+      for (var p in b) {
+        if (b.hasOwnProperty(p)) d[p] = b[p];
+      }
+    };
+
+    return _extendStatics(d, b);
+  };
+
+  return function (d, b) {
+    _extendStatics(d, b);
+
+    function __() {
+      this.constructor = d;
+    }
+
+    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+  };
+}();
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.LuckySheetCelldata = void 0;
+
+var ReadXml_1 = require("./ReadXml");
+
+var method_1 = require("../common/method");
+
+var constant_1 = require("../common/constant");
+
+var LuckyBase_1 = require("./LuckyBase");
+
+var LuckySheetCelldata =
+/** @class */
+function (_super) {
+  __extends(LuckySheetCelldata, _super);
+
+  function LuckySheetCelldata(cell, styles, sharedStrings, mergeCells, sheetFile, ReadXml) {
+    var _this = //Private
+    _super.call(this) || this;
+
+    _this.cell = cell;
+    _this.sheetFile = sheetFile;
+    _this.styles = styles;
+    _this.sharedStrings = sharedStrings;
+    _this.readXml = ReadXml;
+    _this.mergeCells = mergeCells;
+    var attrList = cell.attributeList;
+    var r = attrList.r,
+        s = attrList.s,
+        t = attrList.t;
+    var range = method_1.getcellrange(r);
+    _this.r = range.row[0];
+    _this.c = range.column[0];
+    _this.v = _this.generateValue(s, t);
+    return _this;
+  }
+  /**
+  * @param s Style index ,start 1
+  * @param t Cell type, Optional value is ST_CellType, it's found at constat.ts
+  */
+
+
+  LuckySheetCelldata.prototype.generateValue = function (s, t) {
+    var _this = this;
+
+    var v = this.cell.getInnerElements("v");
+    var f = this.cell.getInnerElements("f");
+
+    if (v == null) {
+      v = this.cell.getInnerElements("t");
+    }
+
+    var cellXfs = this.styles["cellXfs"];
+    var cellStyleXfs = this.styles["cellStyleXfs"];
+    var cellStyles = this.styles["cellStyles"];
+    var fonts = this.styles["fonts"];
+    var fills = this.styles["fills"];
+    var borders = this.styles["borders"];
+    var numfmts = this.styles["numfmts"];
+    var clrScheme = this.styles["clrScheme"];
+    var sharedStrings = this.sharedStrings;
+    var cellValue = new LuckyBase_1.LuckySheetCelldataValue();
+
+    if (f != null) {
+      var formula = f[0],
+          attrList = formula.attributeList;
+      var t_1 = attrList.t,
+          ref = attrList.ref,
+          si = attrList.si;
+      var formulaValue = f[0].value;
+
+      if (t_1 == "shared") {
+        this._fomulaRef = ref;
+        this._formulaType = t_1;
+        this._formulaSi = si;
+      } // console.log(ref, t, si);
+
+
+      if (ref != null || formulaValue != null && formulaValue.length > 0) {
+        formulaValue = method_1.escapeCharacter(formulaValue);
+        cellValue.f = "=" + formulaValue;
+      }
+    }
+
+    var familyFont = null;
+    var quotePrefix;
+
+    if (s != null) {
+      var sNum = parseInt(s);
+      var cellXf = cellXfs[sNum];
+      var xfId = cellXf.attributeList.xfId;
+      var numFmtId = void 0,
+          fontId = void 0,
+          fillId = void 0,
+          borderId = void 0;
+      var horizontal = void 0,
+          vertical = void 0,
+          wrapText = void 0,
+          textRotation = void 0,
+          shrinkToFit = void 0,
+          indent = void 0,
+          applyProtection = void 0;
+
+      if (xfId != null) {
+        var cellStyleXf = cellStyleXfs[parseInt(xfId)];
+        var attrList = cellStyleXf.attributeList;
+        var applyNumberFormat_1 = attrList.applyNumberFormat;
+        var applyFont_1 = attrList.applyFont;
+        var applyFill_1 = attrList.applyFill;
+        var applyBorder_1 = attrList.applyBorder;
+        var applyAlignment_1 = attrList.applyAlignment; // let applyProtection = attrList.applyProtection;
+
+        applyProtection = attrList.applyProtection;
+        quotePrefix = attrList.quotePrefix;
+
+        if (applyNumberFormat_1 != "0" && attrList.numFmtId != null) {
+          // if(attrList.numFmtId!="0"){
+          numFmtId = attrList.numFmtId; // }
+        }
+
+        if (applyFont_1 != "0" && attrList.fontId != null) {
+          fontId = attrList.fontId;
+        }
+
+        if (applyFill_1 != "0" && attrList.fillId != null) {
+          fillId = attrList.fillId;
+        }
+
+        if (applyBorder_1 != "0" && attrList.borderId != null) {
+          borderId = attrList.borderId;
+        }
+
+        if (applyAlignment_1 != null && applyAlignment_1 != "0") {
+          var alignment = cellStyleXf.getInnerElements("alignment");
+
+          if (alignment != null) {
+            var attrList_1 = alignment[0].attributeList;
+
+            if (attrList_1.horizontal != null) {
+              horizontal = attrList_1.horizontal;
+            }
+
+            if (attrList_1.vertical != null) {
+              vertical = attrList_1.vertical;
+            }
+
+            if (attrList_1.wrapText != null) {
+              wrapText = attrList_1.wrapText;
+            }
+
+            if (attrList_1.textRotation != null) {
+              textRotation = attrList_1.textRotation;
+            }
+
+            if (attrList_1.shrinkToFit != null) {
+              shrinkToFit = attrList_1.shrinkToFit;
+            }
+
+            if (attrList_1.indent != null) {
+              indent = attrList_1.indent;
+            }
+          }
+        }
+      }
+
+      var applyNumberFormat = cellXf.attributeList.applyNumberFormat;
+      var applyFont = cellXf.attributeList.applyFont;
+      var applyFill = cellXf.attributeList.applyFill;
+      var applyBorder = cellXf.attributeList.applyBorder;
+      var applyAlignment = cellXf.attributeList.applyAlignment;
+
+      if (cellXf.attributeList.applyProtection != null) {
+        applyProtection = cellXf.attributeList.applyProtection;
+      }
+
+      if (cellXf.attributeList.quotePrefix != null) {
+        quotePrefix = cellXf.attributeList.quotePrefix;
+      }
+
+      if (applyNumberFormat != "0" && cellXf.attributeList.numFmtId != null) {
+        numFmtId = cellXf.attributeList.numFmtId;
+      }
+
+      if (applyFont != "0") {
+        fontId = cellXf.attributeList.fontId;
+      }
+
+      if (applyFill != "0") {
+        fillId = cellXf.attributeList.fillId;
+      }
+
+      if (applyBorder != "0") {
+        borderId = cellXf.attributeList.borderId;
+      }
+
+      if (applyAlignment != "0") {
+        var alignment = cellXf.getInnerElements("alignment");
+
+        if (alignment != null && alignment.length > 0) {
+          var attrList = alignment[0].attributeList;
+
+          if (attrList.horizontal != null) {
+            horizontal = attrList.horizontal;
+          }
+
+          if (attrList.vertical != null) {
+            vertical = attrList.vertical;
+          }
+
+          if (attrList.wrapText != null) {
+            wrapText = attrList.wrapText;
+          }
+
+          if (attrList.textRotation != null) {
+            textRotation = attrList.textRotation;
+          }
+
+          if (attrList.shrinkToFit != null) {
+            shrinkToFit = attrList.shrinkToFit;
+          }
+
+          if (attrList.indent != null) {
+            indent = attrList.indent;
+          }
+        }
+      }
+
+      if (numFmtId != undefined) {
+        var numf = numfmts[parseInt(numFmtId)];
+        var cellFormat = new LuckyBase_1.LuckySheetCellFormat();
+        cellFormat.fa = method_1.escapeCharacter(numf); // console.log(numf, numFmtId, this.v);
+
+        cellFormat.t = t;
+        cellValue.ct = cellFormat;
+      }
+
+      if (fillId != undefined) {
+        var fillIdNum = parseInt(fillId);
+        var fill = fills[fillIdNum]; // console.log(cellValue.v);
+
+        var bg = this.getBackgroundByFill(fill, clrScheme);
+
+        if (bg != null) {
+          cellValue.bg = bg;
+        }
+      }
+
+      if (fontId != undefined) {
+        var fontIdNum = parseInt(fontId);
+        var font = fonts[fontIdNum];
+
+        if (font != null) {
+          var sz = font.getInnerElements("sz"); //font size
+
+          var colors = font.getInnerElements("color"); //font color
+
+          var family = font.getInnerElements("name"); //font family
+
+          var familyOverrides = font.getInnerElements("family"); //font family will be overrided by name
+
+          var charset = font.getInnerElements("charset"); //font charset
+
+          var bolds = font.getInnerElements("b"); //font bold
+
+          var italics = font.getInnerElements("i"); //font italic
+
+          var strikes = font.getInnerElements("strike"); //font italic
+
+          var underlines = font.getInnerElements("u"); //font italic
+
+          if (sz != null && sz.length > 0) {
+            var fs = sz[0].attributeList.val;
+
+            if (fs != null) {
+              cellValue.fs = parseInt(fs);
+            }
+          }
+
+          if (colors != null && colors.length > 0) {
+            var color = colors[0];
+            var fc = ReadXml_1.getColor(color, this.styles, "t");
+
+            if (fc != null) {
+              cellValue.fc = fc;
+            }
+          }
+
+          if (familyOverrides != null && familyOverrides.length > 0) {
+            var val = familyOverrides[0].attributeList.val;
+
+            if (val != null) {
+              familyFont = constant_1.fontFamilys[val];
+            }
+          }
+
+          if (family != null && family.length > 0) {
+            var val = family[0].attributeList.val;
+
+            if (val != null) {
+              cellValue.ff = val;
+            }
+          }
+
+          if (bolds != null && bolds.length > 0) {
+            var bold = bolds[0].attributeList.val;
+
+            if (bold == "0") {
+              cellValue.bl = 0;
+            } else {
+              cellValue.bl = 1;
+            }
+          }
+
+          if (italics != null && italics.length > 0) {
+            var italic = italics[0].attributeList.val;
+
+            if (italic == "0") {
+              cellValue.it = 0;
+            } else {
+              cellValue.it = 1;
+            }
+          }
+
+          if (strikes != null && strikes.length > 0) {
+            var strike = strikes[0].attributeList.val;
+
+            if (strike == "0") {
+              cellValue.cl = 0;
+            } else {
+              cellValue.cl = 1;
+            }
+          }
+
+          if (underlines != null && underlines.length > 0) {
+            var underline = underlines[0].attributeList.val;
+
+            if (underline == "single") {
+              cellValue.un = 1;
+            } else if (underline == "double") {
+              cellValue.un = 2;
+            } else if (underline == "singleAccounting") {
+              cellValue.un = 3;
+            } else if (underline == "doubleAccounting") {
+              cellValue.un = 4;
+            } else {
+              cellValue.un = 0;
+            }
+          }
+        }
+      } // vt: number | undefined//Vertical alignment, 0 middle, 1 up, 2 down, alignment
+      // ht: number | undefined//Horizontal alignment,0 center, 1 left, 2 right, alignment
+      // tr: number | undefined //Text rotation,0: 0、1: 45 、2: -45、3 Vertical text、4: 90 、5: -90, alignment
+      // tb: number | undefined //Text wrap,0 truncation, 1 overflow, 2 word wrap, alignment
+
+
+      if (horizontal != undefined) {
+        //Horizontal alignment
+        if (horizontal == "center") {
+          cellValue.ht = 0;
+        } else if (horizontal == "centerContinuous") {
+          cellValue.ht = 0; //luckysheet unsupport
+        } else if (horizontal == "left") {
+          cellValue.ht = 1;
+        } else if (horizontal == "right") {
+          cellValue.ht = 2;
+        } else if (horizontal == "distributed") {
+          cellValue.ht = 0; //luckysheet unsupport
+        } else if (horizontal == "fill") {
+          cellValue.ht = 1; //luckysheet unsupport
+        } else if (horizontal == "general") {
+          cellValue.ht = 1; //luckysheet unsupport
+        } else if (horizontal == "justify") {
+          cellValue.ht = 0; //luckysheet unsupport
+        } else {
+          cellValue.ht = 1;
+        }
+      }
+
+      if (vertical != undefined) {
+        //Vertical alignment
+        if (vertical == "bottom") {
+          cellValue.vt = 2;
+        } else if (vertical == "center") {
+          cellValue.vt = 0;
+        } else if (vertical == "distributed") {
+          cellValue.vt = 0; //luckysheet unsupport
+        } else if (vertical == "justify") {
+          cellValue.vt = 0; //luckysheet unsupport
+        } else if (vertical == "top") {
+          cellValue.vt = 1;
+        } else {
+          cellValue.vt = 1;
+        }
+      }
+
+      if (wrapText != undefined) {
+        if (wrapText == "1") {
+          cellValue.tb = 2;
+        } else {
+          cellValue.tb = 1;
+        }
+      } else {
+        cellValue.tb = 1;
+      }
+
+      if (textRotation != undefined) {
+        // tr: number | undefined //Text rotation,0: 0、1: 45 、2: -45、3 Vertical text、4: 90 、5: -90, alignment
+        if (textRotation == "255") {
+          cellValue.tr = 3;
+        } // else if(textRotation=="45"){
+        //     cellValue.tr = 1;
+        // }
+        // else if(textRotation=="90"){
+        //     cellValue.tr = 4;
+        // }
+        // else if(textRotation=="135"){
+        //     cellValue.tr = 2;
+        // }
+        // else if(textRotation=="180"){
+        //     cellValue.tr = 5;
+        // }
+        else {
+            cellValue.tr = 0;
+            cellValue.rt = parseInt(textRotation);
+          }
+      }
+
+      if (shrinkToFit != undefined) {//luckysheet unsupport
+      }
+
+      if (indent != undefined) {//luckysheet unsupport
+      }
+
+      if (borderId != undefined) {
+        var borderIdNum = parseInt(borderId);
+        var border = borders[borderIdNum]; // this._borderId = borderIdNum;
+
+        var borderObject = new LuckyBase_1.LuckySheetborderInfoCellForImp();
+        borderObject.rangeType = "cell"; // borderObject.cells = [];
+
+        var borderCellValue = new LuckyBase_1.LuckySheetborderInfoCellValue();
+        borderCellValue.row_index = this.r;
+        borderCellValue.col_index = this.c;
+        var lefts = border.getInnerElements("left");
+        var rights = border.getInnerElements("right");
+        var tops = border.getInnerElements("top");
+        var bottoms = border.getInnerElements("bottom");
+        var diagonals = border.getInnerElements("diagonal");
+        var starts = border.getInnerElements("start");
+        var ends = border.getInnerElements("end");
+        var left = this.getBorderInfo(lefts);
+        var right = this.getBorderInfo(rights);
+        var top_1 = this.getBorderInfo(tops);
+        var bottom = this.getBorderInfo(bottoms);
+        var diagonal = this.getBorderInfo(diagonals);
+        var start = this.getBorderInfo(starts);
+        var end = this.getBorderInfo(ends);
+        var isAdd = false;
+
+        if (start != null && start.color != null) {
+          borderCellValue.l = start;
+          isAdd = true;
+        }
+
+        if (end != null && end.color != null) {
+          borderCellValue.r = end;
+          isAdd = true;
+        }
+
+        if (left != null && left.color != null) {
+          borderCellValue.l = left;
+          isAdd = true;
+        }
+
+        if (right != null && right.color != null) {
+          borderCellValue.r = right;
+          isAdd = true;
+        }
+
+        if (top_1 != null && top_1.color != null) {
+          borderCellValue.t = top_1;
+          isAdd = true;
+        }
+
+        if (bottom != null && bottom.color != null) {
+          borderCellValue.b = bottom;
+          isAdd = true;
+        }
+
+        if (isAdd) {
+          borderObject.value = borderCellValue; // this.config._borderInfo[borderId] = borderObject;
+
+          this._borderObject = borderObject;
+        }
+      }
+    } else {
+      cellValue.tb = 1;
+    }
+
+    if (v != null) {
+      var value = v[0].value;
+
+      if (/&#\d+;/.test(value)) {
+        value = this.htmlDecode(value);
+      }
+
+      if (t == constant_1.ST_CellType["SharedString"]) {
+        var siIndex = parseInt(v[0].value);
+        var sharedSI = sharedStrings[siIndex];
+        var rFlag = sharedSI.getInnerElements("r");
+
+        if (rFlag == null) {
+          var tFlag = sharedSI.getInnerElements("t");
+
+          if (tFlag != null) {
+            var text_1 = "";
+            tFlag.forEach(function (t) {
+              text_1 += t.value;
+            });
+            text_1 = method_1.escapeCharacter(text_1); //isContainMultiType(text) &&
+
+            if (familyFont == "Roman" && text_1.length > 0) {
+              var textArray = text_1.split("");
+              var preWordType = null,
+                  wordText = "",
+                  preWholef = null;
+              var wholef = "Times New Roman";
+
+              if (cellValue.ff != null) {
+                wholef = cellValue.ff;
+              }
+
+              var cellFormat = cellValue.ct;
+
+              if (cellFormat == null) {
+                cellFormat = new LuckyBase_1.LuckySheetCellFormat();
+              }
+
+              if (cellFormat.s == null) {
+                cellFormat.s = [];
+              }
+
+              for (var i = 0; i < textArray.length; i++) {
+                var w = textArray[i];
+                var type = null,
+                    ff = wholef;
+
+                if (method_1.isChinese(w)) {
+                  type = "c";
+                  ff = "宋体";
+                } else if (method_1.isJapanese(w)) {
+                  type = "j";
+                  ff = "Yu Gothic";
+                } else if (method_1.isKoera(w)) {
+                  type = "k";
+                  ff = "Malgun Gothic";
+                } else {
+                  type = "e";
+                }
+
+                if (type != preWordType && preWordType != null || i == textArray.length - 1) {
+                  var InlineString = new LuckyBase_1.LuckyInlineString();
+                  InlineString.ff = preWholef;
+
+                  if (cellValue.fc != null) {
+                    InlineString.fc = cellValue.fc;
+                  }
+
+                  if (cellValue.fs != null) {
+                    InlineString.fs = cellValue.fs;
+                  }
+
+                  if (cellValue.cl != null) {
+                    InlineString.cl = cellValue.cl;
+                  }
+
+                  if (cellValue.un != null) {
+                    InlineString.un = cellValue.un;
+                  }
+
+                  if (cellValue.bl != null) {
+                    InlineString.bl = cellValue.bl;
+                  }
+
+                  if (cellValue.it != null) {
+                    InlineString.it = cellValue.it;
+                  }
+
+                  if (i == textArray.length - 1) {
+                    if (type == preWordType) {
+                      InlineString.ff = ff;
+                      InlineString.v = wordText + w;
+                    } else {
+                      InlineString.ff = preWholef;
+                      InlineString.v = wordText;
+                      cellFormat.s.push(InlineString);
+                      var InlineStringLast = new LuckyBase_1.LuckyInlineString();
+                      InlineStringLast.ff = ff;
+                      InlineStringLast.v = w;
+
+                      if (cellValue.fc != null) {
+                        InlineStringLast.fc = cellValue.fc;
+                      }
+
+                      if (cellValue.fs != null) {
+                        InlineStringLast.fs = cellValue.fs;
+                      }
+
+                      if (cellValue.cl != null) {
+                        InlineStringLast.cl = cellValue.cl;
+                      }
+
+                      if (cellValue.un != null) {
+                        InlineStringLast.un = cellValue.un;
+                      }
+
+                      if (cellValue.bl != null) {
+                        InlineStringLast.bl = cellValue.bl;
+                      }
+
+                      if (cellValue.it != null) {
+                        InlineStringLast.it = cellValue.it;
+                      }
+
+                      cellFormat.s.push(InlineStringLast);
+                      break;
+                    }
+                  } else {
+                    InlineString.v = wordText;
+                  }
+
+                  cellFormat.s.push(InlineString);
+                  wordText = w;
+                } else {
+                  wordText += w;
+                }
+
+                preWordType = type;
+                preWholef = ff;
+              }
+
+              cellFormat.t = "inlineStr"; // cellFormat.s = [InlineString];
+
+              cellValue.ct = cellFormat; // console.log(cellValue);
+            } else {
+              text_1 = this.replaceSpecialWrap(text_1);
+
+              if (text_1.indexOf("\r\n") > -1 || text_1.indexOf("\n") > -1) {
+                var InlineString = new LuckyBase_1.LuckyInlineString();
+                InlineString.v = text_1;
+                var cellFormat = cellValue.ct;
+
+                if (cellFormat == null) {
+                  cellFormat = new LuckyBase_1.LuckySheetCellFormat();
+                }
+
+                if (cellValue.ff != null) {
+                  InlineString.ff = cellValue.ff;
+                }
+
+                if (cellValue.fc != null) {
+                  InlineString.fc = cellValue.fc;
+                }
+
+                if (cellValue.fs != null) {
+                  InlineString.fs = cellValue.fs;
+                }
+
+                if (cellValue.cl != null) {
+                  InlineString.cl = cellValue.cl;
+                }
+
+                if (cellValue.un != null) {
+                  InlineString.un = cellValue.un;
+                }
+
+                if (cellValue.bl != null) {
+                  InlineString.bl = cellValue.bl;
+                }
+
+                if (cellValue.it != null) {
+                  InlineString.it = cellValue.it;
+                }
+
+                cellFormat.t = "inlineStr";
+                cellFormat.s = [InlineString];
+                cellValue.ct = cellFormat;
+              } else {
+                cellValue.v = text_1;
+                quotePrefix = "1";
+              }
+            }
+          }
+        } else {
+          var styles_1 = [];
+          rFlag.forEach(function (r) {
+            var tFlag = r.getInnerElements("t");
+            var rPr = r.getInnerElements("rPr");
+            var InlineString = new LuckyBase_1.LuckyInlineString();
+
+            if (tFlag != null && tFlag.length > 0) {
+              var text = tFlag[0].value;
+              text = _this.replaceSpecialWrap(text);
+              text = method_1.escapeCharacter(text);
+              InlineString.v = text;
+            }
+
+            if (rPr != null && rPr.length > 0) {
+              var frpr = rPr[0];
+              var sz = ReadXml_1.getlineStringAttr(frpr, "sz"),
+                  rFont = ReadXml_1.getlineStringAttr(frpr, "rFont"),
+                  family = ReadXml_1.getlineStringAttr(frpr, "family"),
+                  charset = ReadXml_1.getlineStringAttr(frpr, "charset"),
+                  scheme = ReadXml_1.getlineStringAttr(frpr, "scheme"),
+                  b = ReadXml_1.getlineStringAttr(frpr, "b"),
+                  i = ReadXml_1.getlineStringAttr(frpr, "i"),
+                  u = ReadXml_1.getlineStringAttr(frpr, "u"),
+                  strike = ReadXml_1.getlineStringAttr(frpr, "strike"),
+                  vertAlign = ReadXml_1.getlineStringAttr(frpr, "vertAlign"),
+                  color = void 0;
+              var cEle = frpr.getInnerElements("color");
+
+              if (cEle != null && cEle.length > 0) {
+                color = ReadXml_1.getColor(cEle[0], _this.styles, "t");
+              }
+
+              var ff = void 0; // if(family!=null){
+              //     ff = fontFamilys[family];
+              // }
+
+              if (rFont != null) {
+                ff = rFont;
+              }
+
+              if (ff != null) {
+                InlineString.ff = ff;
+              } else if (cellValue.ff != null) {
+                InlineString.ff = cellValue.ff;
+              }
+
+              if (color != null) {
+                InlineString.fc = color;
+              } else if (cellValue.fc != null) {
+                InlineString.fc = cellValue.fc;
+              }
+
+              if (sz != null) {
+                InlineString.fs = parseInt(sz);
+              } else if (cellValue.fs != null) {
+                InlineString.fs = cellValue.fs;
+              }
+
+              if (strike != null) {
+                InlineString.cl = parseInt(strike);
+              } else if (cellValue.cl != null) {
+                InlineString.cl = cellValue.cl;
+              }
+
+              if (u != null) {
+                InlineString.un = parseInt(u);
+              } else if (cellValue.un != null) {
+                InlineString.un = cellValue.un;
+              }
+
+              if (b != null) {
+                InlineString.bl = parseInt(b);
+              } else if (cellValue.bl != null) {
+                InlineString.bl = cellValue.bl;
+              }
+
+              if (i != null) {
+                InlineString.it = parseInt(i);
+              } else if (cellValue.it != null) {
+                InlineString.it = cellValue.it;
+              }
+
+              if (vertAlign != null) {
+                InlineString.va = parseInt(vertAlign);
+              } // ff:string | undefined //font family
+              // fc:string | undefined//font color
+              // fs:number | undefined//font size
+              // cl:number | undefined//strike
+              // un:number | undefined//underline
+              // bl:number | undefined//blod
+              // it:number | undefined//italic
+              // v:string | undefined
+
+            } else {
+              if (InlineString.ff == null && cellValue.ff != null) {
+                InlineString.ff = cellValue.ff;
+              }
+
+              if (InlineString.fc == null && cellValue.fc != null) {
+                InlineString.fc = cellValue.fc;
+              }
+
+              if (InlineString.fs == null && cellValue.fs != null) {
+                InlineString.fs = cellValue.fs;
+              }
+
+              if (InlineString.cl == null && cellValue.cl != null) {
+                InlineString.cl = cellValue.cl;
+              }
+
+              if (InlineString.un == null && cellValue.un != null) {
+                InlineString.un = cellValue.un;
+              }
+
+              if (InlineString.bl == null && cellValue.bl != null) {
+                InlineString.bl = cellValue.bl;
+              }
+
+              if (InlineString.it == null && cellValue.it != null) {
+                InlineString.it = cellValue.it;
+              }
+            }
+
+            styles_1.push(InlineString);
+          });
+          var cellFormat = cellValue.ct;
+
+          if (cellFormat == null) {
+            cellFormat = new LuckyBase_1.LuckySheetCellFormat();
+          }
+
+          cellFormat.t = "inlineStr";
+          cellFormat.s = styles_1;
+          cellValue.ct = cellFormat;
+        }
+      } // else if(t==ST_CellType["InlineString"] && v!=null){
+      // }
+      else {
+          value = method_1.escapeCharacter(value);
+          cellValue.v = value;
+        }
+    }
+
+    if (quotePrefix != null) {
+      cellValue.qp = parseInt(quotePrefix);
+    }
+
+    return cellValue;
+  };
+
+  LuckySheetCelldata.prototype.replaceSpecialWrap = function (text) {
+    text = text.replace(/_x000D_/g, "").replace(/&#13;&#10;/g, "\r\n").replace(/&#13;/g, "\r").replace(/&#10;/g, "\n");
+    return text;
+  };
+
+  LuckySheetCelldata.prototype.getBackgroundByFill = function (fill, clrScheme) {
+    var patternFills = fill.getInnerElements("patternFill");
+
+    if (patternFills != null) {
+      var patternFill = patternFills[0];
+      var fgColors = patternFill.getInnerElements("fgColor");
+      var bgColors = patternFill.getInnerElements("bgColor");
+      var fg = void 0,
+          bg = void 0;
+
+      if (fgColors != null) {
+        var fgColor = fgColors[0];
+        fg = ReadXml_1.getColor(fgColor, this.styles);
+      }
+
+      if (bgColors != null) {
+        var bgColor = bgColors[0];
+        bg = ReadXml_1.getColor(bgColor, this.styles);
+      } // console.log(fgColors,bgColors,clrScheme);
+
+
+      if (fg != null) {
+        return fg;
+      } else if (bg != null) {
+        return bg;
+      }
+    } else {
+      var gradientfills = fill.getInnerElements("gradientFill");
+
+      if (gradientfills != null) {
+        //graient color fill handler
+        return null;
+      }
+    }
+  };
+
+  LuckySheetCelldata.prototype.getBorderInfo = function (borders) {
+    if (borders == null) {
+      return null;
+    }
+
+    var border = borders[0],
+        attrList = border.attributeList;
+    var clrScheme = this.styles["clrScheme"];
+    var style = attrList.style;
+
+    if (style == null || style == "none") {
+      return null;
+    }
+
+    var colors = border.getInnerElements("color");
+    var colorRet = "#000000";
+
+    if (colors != null) {
+      var color = colors[0];
+      colorRet = ReadXml_1.getColor(color, this.styles, "b");
+
+      if (colorRet == null) {
+        colorRet = "#000000";
+      }
+    }
+
+    var ret = new LuckyBase_1.LuckySheetborderInfoCellValueStyle();
+    ret.style = constant_1.borderTypes[style];
+    ret.color = colorRet;
+    return ret;
+  };
+
+  LuckySheetCelldata.prototype.htmlDecode = function (str) {
+    return str.replace(/&#(x)?([^&]{1,5});?/g, function ($, $1, $2) {
+      return String.fromCharCode(parseInt($2, $1 ? 16 : 10));
+    });
+  };
+
+  ;
+  return LuckySheetCelldata;
+}(LuckyBase_1.LuckySheetCelldataBase);
+
+exports.LuckySheetCelldata = LuckySheetCelldata;
+
+},{"../common/constant":91,"../common/method":93,"./LuckyBase":85,"./ReadXml":90}],87:[function(require,module,exports){
+"use strict";
+
+var __extends = void 0 && (void 0).__extends || function () {
+  var _extendStatics = function extendStatics(d, b) {
+    _extendStatics = Object.setPrototypeOf || {
+      __proto__: []
+    } instanceof Array && function (d, b) {
+      d.__proto__ = b;
+    } || function (d, b) {
+      for (var p in b) {
+        if (b.hasOwnProperty(p)) d[p] = b[p];
+      }
+    };
+
+    return _extendStatics(d, b);
+  };
+
+  return function (d, b) {
+    _extendStatics(d, b);
+
+    function __() {
+      this.constructor = d;
+    }
+
+    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+  };
+}();
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.LuckyFile = void 0;
+
+var LuckySheet_1 = require("./LuckySheet");
+
+var constant_1 = require("../common/constant");
+
+var ReadXml_1 = require("./ReadXml");
+
+var method_1 = require("../common/method");
+
+var LuckyBase_1 = require("./LuckyBase");
+
+var LuckyImage_1 = require("./LuckyImage");
+
+var LuckyFile =
+/** @class */
+function (_super) {
+  __extends(LuckyFile, _super);
+
+  function LuckyFile(files, fileName) {
+    var _this = _super.call(this) || this;
+
+    _this.columnWidthSet = [];
+    _this.rowHeightSet = [];
+    _this.files = files;
+    _this.fileName = fileName;
+    _this.readXml = new ReadXml_1.ReadXml(files);
+
+    _this.getSheetNameList();
+
+    _this.sharedStrings = _this.readXml.getElementsByTagName("sst/si", constant_1.sharedStringsFile);
+    _this.calcChain = _this.readXml.getElementsByTagName("calcChain/c", constant_1.calcChainFile);
+    _this.styles = {};
+    _this.styles["cellXfs"] = _this.readXml.getElementsByTagName("cellXfs/xf", constant_1.stylesFile);
+    _this.styles["cellStyleXfs"] = _this.readXml.getElementsByTagName("cellStyleXfs/xf", constant_1.stylesFile);
+    _this.styles["cellStyles"] = _this.readXml.getElementsByTagName("cellStyles/cellStyle", constant_1.stylesFile);
+    _this.styles["fonts"] = _this.readXml.getElementsByTagName("fonts/font", constant_1.stylesFile);
+    _this.styles["fills"] = _this.readXml.getElementsByTagName("fills/fill", constant_1.stylesFile);
+    _this.styles["borders"] = _this.readXml.getElementsByTagName("borders/border", constant_1.stylesFile);
+    _this.styles["clrScheme"] = _this.readXml.getElementsByTagName("a:clrScheme/a:dk1|a:lt1|a:dk2|a:lt2|a:accent1|a:accent2|a:accent3|a:accent4|a:accent5|a:accent6|a:hlink|a:folHlink", constant_1.theme1File);
+    _this.styles["indexedColors"] = _this.readXml.getElementsByTagName("colors/indexedColors/rgbColor", constant_1.stylesFile);
+    _this.styles["mruColors"] = _this.readXml.getElementsByTagName("colors/mruColors/color", constant_1.stylesFile);
+    _this.imageList = new LuckyImage_1.ImageList(files);
+
+    var numfmts = _this.readXml.getElementsByTagName("numFmt/numFmt", constant_1.stylesFile);
+
+    var numFmtDefaultC = JSON.parse(JSON.stringify(constant_1.numFmtDefault));
+
+    for (var i = 0; i < numfmts.length; i++) {
+      var attrList = numfmts[i].attributeList;
+      var numfmtid = method_1.getXmlAttibute(attrList, "numFmtId", "49");
+      var formatcode = method_1.getXmlAttibute(attrList, "formatCode", "@"); // console.log(numfmtid, formatcode);
+
+      if (!(numfmtid in constant_1.numFmtDefault)) {
+        numFmtDefaultC[numfmtid] = formatcode;
+      }
+    } // console.log(JSON.stringify(numFmtDefaultC), numfmts);
+
+
+    _this.styles["numfmts"] = numFmtDefaultC;
+    return _this;
+  }
+  /**
+  * @return All sheet name of workbook
+  */
+
+
+  LuckyFile.prototype.getSheetNameList = function () {
+    var workbookRelList = this.readXml.getElementsByTagName("Relationships/Relationship", constant_1.workbookRels);
+
+    if (workbookRelList == null) {
+      return;
+    }
+
+    var regex = new RegExp("worksheets/[^/]*?.xml");
+    var sheetNames = {};
+
+    for (var i = 0; i < workbookRelList.length; i++) {
+      var rel = workbookRelList[i],
+          attrList = rel.attributeList;
+      var id = attrList["Id"],
+          target = attrList["Target"];
+
+      if (regex.test(target)) {
+        if (target.startsWith('/xl')) {
+          sheetNames[id] = target.substr(1);
+        } else {
+          sheetNames[id] = "xl/" + target;
+        }
+      }
+    }
+
+    this.sheetNameList = sheetNames;
+  };
+  /**
+  * @param sheetName WorkSheet'name
+  * @return sheet file name and path in zip
+  */
+
+
+  LuckyFile.prototype.getSheetFileBysheetId = function (sheetId) {
+    // for(let i=0;i<this.sheetNameList.length;i++){
+    //     let sheetFileName = this.sheetNameList[i];
+    //     if(sheetFileName.indexOf("sheet"+sheetId)>-1){
+    //         return sheetFileName;
+    //     }
+    // }
+    return this.sheetNameList[sheetId];
+  };
+  /**
+  * @return workBook information
+  */
+
+
+  LuckyFile.prototype.getWorkBookInfo = function () {
+    var Company = this.readXml.getElementsByTagName("Company", constant_1.appFile);
+    var AppVersion = this.readXml.getElementsByTagName("AppVersion", constant_1.appFile);
+    var creator = this.readXml.getElementsByTagName("dc:creator", constant_1.coreFile);
+    var lastModifiedBy = this.readXml.getElementsByTagName("cp:lastModifiedBy", constant_1.coreFile);
+    var created = this.readXml.getElementsByTagName("dcterms:created", constant_1.coreFile);
+    var modified = this.readXml.getElementsByTagName("dcterms:modified", constant_1.coreFile);
+    this.info = new LuckyBase_1.LuckyFileInfo();
+    this.info.name = this.fileName;
+    this.info.creator = creator.length > 0 ? creator[0].value : "";
+    this.info.lastmodifiedby = lastModifiedBy.length > 0 ? lastModifiedBy[0].value : "";
+    this.info.createdTime = created.length > 0 ? created[0].value : "";
+    this.info.modifiedTime = modified.length > 0 ? modified[0].value : "";
+    this.info.company = Company.length > 0 ? Company[0].value : "";
+    this.info.appversion = AppVersion.length > 0 ? AppVersion[0].value : "";
+  };
+  /**
+  * @return All sheet , include whole information
+  */
+
+
+  LuckyFile.prototype.getSheetsFull = function (isInitialCell) {
+    if (isInitialCell === void 0) {
+      isInitialCell = true;
+    }
+
+    var sheets = this.readXml.getElementsByTagName("sheets/sheet", constant_1.workBookFile);
+    var sheetList = {};
+
+    for (var key in sheets) {
+      var sheet = sheets[key];
+      sheetList[sheet.attributeList.name] = sheet.attributeList["sheetId"];
+    }
+
+    this.sheets = [];
+    var order = 0;
+
+    for (var key in sheets) {
+      var sheet = sheets[key];
+      var sheetName = sheet.attributeList.name;
+      var sheetId = sheet.attributeList["sheetId"];
+      var rid = sheet.attributeList["r:id"];
+      var sheetFile = this.getSheetFileBysheetId(rid);
+      var drawing = this.readXml.getElementsByTagName("worksheet/drawing", sheetFile),
+          drawingFile = void 0,
+          drawingRelsFile = void 0;
+
+      if (drawing != null && drawing.length > 0) {
+        var attrList = drawing[0].attributeList;
+        var rid_1 = method_1.getXmlAttibute(attrList, "r:id", null);
+
+        if (rid_1 != null) {
+          drawingFile = this.getDrawingFile(rid_1, sheetFile);
+          drawingRelsFile = this.getDrawingRelsFile(drawingFile);
+        }
+      }
+
+      if (sheetFile != null) {
+        var sheet_1 = new LuckySheet_1.LuckySheet(sheetName, sheetId, order, isInitialCell, {
+          sheetFile: sheetFile,
+          readXml: this.readXml,
+          sheetList: sheetList,
+          styles: this.styles,
+          sharedStrings: this.sharedStrings,
+          calcChain: this.calcChain,
+          imageList: this.imageList,
+          drawingFile: drawingFile,
+          drawingRelsFile: drawingRelsFile
+        });
+        this.columnWidthSet = [];
+        this.rowHeightSet = [];
+        this.imagePositionCaculation(sheet_1);
+        this.sheets.push(sheet_1);
+        order++;
+      }
+    }
+  };
+
+  LuckyFile.prototype.extendArray = function (index, sets, def, hidden, lens) {
+    if (index < sets.length) {
+      return;
+    }
+
+    var startIndex = sets.length,
+        endIndex = index;
+    var allGap = 0;
+
+    if (startIndex > 0) {
+      allGap = sets[startIndex - 1];
+    } // else{
+    //     sets.push(0);
+    // }
+
+
+    for (var i = startIndex; i <= endIndex; i++) {
+      var gap = def,
+          istring = i.toString();
+
+      if (istring in hidden) {
+        gap = 0;
+      } else if (istring in lens) {
+        gap = lens[istring];
+      }
+
+      allGap += Math.round(gap + 1);
+      sets.push(allGap);
+    }
+  };
+
+  LuckyFile.prototype.imagePositionCaculation = function (sheet) {
+    var images = sheet.images,
+        defaultColWidth = sheet.defaultColWidth,
+        defaultRowHeight = sheet.defaultRowHeight;
+    var colhidden = {};
+
+    if (sheet.config.colhidden) {
+      colhidden = sheet.config.colhidden;
+    }
+
+    var columnlen = {};
+
+    if (sheet.config.columnlen) {
+      columnlen = sheet.config.columnlen;
+    }
+
+    var rowhidden = {};
+
+    if (sheet.config.rowhidden) {
+      rowhidden = sheet.config.rowhidden;
+    }
+
+    var rowlen = {};
+
+    if (sheet.config.rowlen) {
+      rowlen = sheet.config.rowlen;
+    }
+
+    for (var key in images) {
+      var imageObject = images[key]; //Image, luckyImage
+
+      var fromCol = imageObject.fromCol;
+      var fromColOff = imageObject.fromColOff;
+      var fromRow = imageObject.fromRow;
+      var fromRowOff = imageObject.fromRowOff;
+      var toCol = imageObject.toCol;
+      var toColOff = imageObject.toColOff;
+      var toRow = imageObject.toRow;
+      var toRowOff = imageObject.toRowOff;
+      var x_n = 0,
+          y_n = 0;
+      var cx_n = 0,
+          cy_n = 0;
+
+      if (fromCol >= this.columnWidthSet.length) {
+        this.extendArray(fromCol, this.columnWidthSet, defaultColWidth, colhidden, columnlen);
+      }
+
+      if (fromCol == 0) {
+        x_n = 0;
+      } else {
+        x_n = this.columnWidthSet[fromCol - 1];
+      }
+
+      x_n = x_n + fromColOff;
+
+      if (fromRow >= this.rowHeightSet.length) {
+        this.extendArray(fromRow, this.rowHeightSet, defaultRowHeight, rowhidden, rowlen);
+      }
+
+      if (fromRow == 0) {
+        y_n = 0;
+      } else {
+        y_n = this.rowHeightSet[fromRow - 1];
+      }
+
+      y_n = y_n + fromRowOff;
+
+      if (toCol >= this.columnWidthSet.length) {
+        this.extendArray(toCol, this.columnWidthSet, defaultColWidth, colhidden, columnlen);
+      }
+
+      if (toCol == 0) {
+        cx_n = 0;
+      } else {
+        cx_n = this.columnWidthSet[toCol - 1];
+      }
+
+      cx_n = cx_n + toColOff - x_n;
+
+      if (toRow >= this.rowHeightSet.length) {
+        this.extendArray(toRow, this.rowHeightSet, defaultRowHeight, rowhidden, rowlen);
+      }
+
+      if (toRow == 0) {
+        cy_n = 0;
+      } else {
+        cy_n = this.rowHeightSet[toRow - 1];
+      }
+
+      cy_n = cy_n + toRowOff - y_n;
+      console.log(defaultColWidth, colhidden, columnlen);
+      console.log(fromCol, this.columnWidthSet[fromCol], fromColOff);
+      console.log(toCol, this.columnWidthSet[toCol], toColOff, JSON.stringify(this.columnWidthSet));
+      imageObject.originWidth = cx_n;
+      imageObject.originHeight = cy_n;
+      imageObject.crop.height = cy_n;
+      imageObject.crop.width = cx_n;
+      imageObject["default"].height = cy_n;
+      imageObject["default"].left = x_n;
+      imageObject["default"].top = y_n;
+      imageObject["default"].width = cx_n;
+    }
+
+    console.log(this.columnWidthSet, this.rowHeightSet);
+  };
+  /**
+  * @return drawing file string
+  */
+
+
+  LuckyFile.prototype.getDrawingFile = function (rid, sheetFile) {
+    var sheetRelsPath = "xl/worksheets/_rels/";
+    var sheetFileArr = sheetFile.split("/");
+    var sheetRelsName = sheetFileArr[sheetFileArr.length - 1];
+    var sheetRelsFile = sheetRelsPath + sheetRelsName + ".rels";
+    var drawing = this.readXml.getElementsByTagName("Relationships/Relationship", sheetRelsFile);
+
+    if (drawing.length > 0) {
+      for (var i = 0; i < drawing.length; i++) {
+        var relationship = drawing[i];
+        var attrList = relationship.attributeList;
+        var relationshipId = method_1.getXmlAttibute(attrList, "Id", null);
+
+        if (relationshipId == rid) {
+          var target = method_1.getXmlAttibute(attrList, "Target", null);
+
+          if (target != null) {
+            return target.replace(/\.\.\//g, "");
+          }
+        }
+      }
+    }
+
+    return null;
+  };
+
+  LuckyFile.prototype.getDrawingRelsFile = function (drawingFile) {
+    var drawingRelsPath = "xl/drawings/_rels/";
+    var drawingFileArr = drawingFile.split("/");
+    var drawingRelsName = drawingFileArr[drawingFileArr.length - 1];
+    var drawingRelsFile = drawingRelsPath + drawingRelsName + ".rels";
+    return drawingRelsFile;
+  };
+  /**
+  * @return All sheet base information widthout cell and config
+  */
+
+
+  LuckyFile.prototype.getSheetsWithoutCell = function () {
+    this.getSheetsFull(false);
+  };
+  /**
+  * @return LuckySheet file json
+  */
+
+
+  LuckyFile.prototype.Parse = function () {
+    // let xml = this.readXml;
+    // for(let key in this.sheetNameList){
+    //     let sheetName=this.sheetNameList[key];
+    //     let sheetColumns = xml.getElementsByTagName("row/c/f", sheetName);
+    //     console.log(sheetColumns);
+    // }
+    // return "";
+    this.getWorkBookInfo();
+    this.getSheetsFull(); // for(let i=0;i<this.sheets.length;i++){
+    //     let sheet = this.sheets[i];
+    //     let _borderInfo = sheet.config._borderInfo;
+    //     if(_borderInfo==null){
+    //         continue;
+    //     }
+    //     let _borderInfoKeys = Object.keys(_borderInfo);
+    //     _borderInfoKeys.sort();
+    //     for(let a=0;a<_borderInfoKeys.length;a++){
+    //         let key = parseInt(_borderInfoKeys[a]);
+    //         let b = _borderInfo[key];
+    //         if(b.cells.length==0){
+    //             continue;
+    //         }
+    //         if(sheet.config.borderInfo==null){
+    //             sheet.config.borderInfo = [];
+    //         }
+    //         sheet.config.borderInfo.push(b);
+    //     }
+    // }
+
+    return this.toJsonString(this);
+  };
+
+  LuckyFile.prototype.toJsonString = function (file) {
+    var LuckyOutPutFile = new LuckyBase_1.LuckyFileBase();
+    LuckyOutPutFile.info = file.info;
+    LuckyOutPutFile.sheets = [];
+    file.sheets.forEach(function (sheet) {
+      var sheetout = new LuckyBase_1.LuckySheetBase(); //let attrName = ["name","color","config","index","status","order","row","column","luckysheet_select_save","scrollLeft","scrollTop","zoomRatio","showGridLines","defaultColWidth","defaultRowHeight","celldata","chart","isPivotTable","pivotTable","luckysheet_conditionformat_save","freezen","calcChain"];
+
+      if (sheet.name != null) {
+        sheetout.name = sheet.name;
+      }
+
+      if (sheet.color != null) {
+        sheetout.color = sheet.color;
+      }
+
+      if (sheet.config != null) {
+        sheetout.config = sheet.config; // if(sheetout.config._borderInfo!=null){
+        //     delete sheetout.config._borderInfo;
+        // }
+      }
+
+      if (sheet.index != null) {
+        sheetout.index = sheet.index;
+      }
+
+      if (sheet.status != null) {
+        sheetout.status = sheet.status;
+      }
+
+      if (sheet.order != null) {
+        sheetout.order = sheet.order;
+      }
+
+      if (sheet.row != null) {
+        sheetout.row = sheet.row;
+      }
+
+      if (sheet.column != null) {
+        sheetout.column = sheet.column;
+      }
+
+      if (sheet.luckysheet_select_save != null) {
+        sheetout.luckysheet_select_save = sheet.luckysheet_select_save;
+      }
+
+      if (sheet.scrollLeft != null) {
+        sheetout.scrollLeft = sheet.scrollLeft;
+      }
+
+      if (sheet.scrollTop != null) {
+        sheetout.scrollTop = sheet.scrollTop;
+      }
+
+      if (sheet.zoomRatio != null) {
+        sheetout.zoomRatio = sheet.zoomRatio;
+      }
+
+      if (sheet.showGridLines != null) {
+        sheetout.showGridLines = sheet.showGridLines;
+      }
+
+      if (sheet.defaultColWidth != null) {
+        sheetout.defaultColWidth = sheet.defaultColWidth;
+      }
+
+      if (sheet.defaultRowHeight != null) {
+        sheetout.defaultRowHeight = sheet.defaultRowHeight;
+      }
+
+      if (sheet.celldata != null) {
+        // sheetout.celldata = sheet.celldata;
+        sheetout.celldata = [];
+        sheet.celldata.forEach(function (cell) {
+          var cellout = new LuckyBase_1.LuckySheetCelldataBase();
+          cellout.r = cell.r;
+          cellout.c = cell.c;
+          cellout.v = cell.v;
+          sheetout.celldata.push(cellout);
+        });
+      }
+
+      if (sheet.chart != null) {
+        sheetout.chart = sheet.chart;
+      }
+
+      if (sheet.isPivotTable != null) {
+        sheetout.isPivotTable = sheet.isPivotTable;
+      }
+
+      if (sheet.pivotTable != null) {
+        sheetout.pivotTable = sheet.pivotTable;
+      }
+
+      if (sheet.luckysheet_conditionformat_save != null) {
+        sheetout.luckysheet_conditionformat_save = sheet.luckysheet_conditionformat_save;
+      }
+
+      if (sheet.freezen != null) {
+        sheetout.freezen = sheet.freezen;
+      }
+
+      if (sheet.calcChain != null) {
+        sheetout.calcChain = sheet.calcChain;
+      }
+
+      if (sheet.images != null) {
+        sheetout.images = sheet.images;
+      }
+
+      LuckyOutPutFile.sheets.push(sheetout);
+    });
+    return JSON.stringify(LuckyOutPutFile);
+  };
+
+  return LuckyFile;
+}(LuckyBase_1.LuckyFileBase);
+
+exports.LuckyFile = LuckyFile;
+
+},{"../common/constant":91,"../common/method":93,"./LuckyBase":85,"./LuckyImage":88,"./LuckySheet":89,"./ReadXml":90}],88:[function(require,module,exports){
+"use strict";
+
+var __extends = void 0 && (void 0).__extends || function () {
+  var _extendStatics = function extendStatics(d, b) {
+    _extendStatics = Object.setPrototypeOf || {
+      __proto__: []
+    } instanceof Array && function (d, b) {
+      d.__proto__ = b;
+    } || function (d, b) {
+      for (var p in b) {
+        if (b.hasOwnProperty(p)) d[p] = b[p];
+      }
+    };
+
+    return _extendStatics(d, b);
+  };
+
+  return function (d, b) {
+    _extendStatics(d, b);
+
+    function __() {
+      this.constructor = d;
+    }
+
+    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+  };
+}();
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ImageList = void 0;
+
+var LuckyBase_1 = require("./LuckyBase");
+
+var emf_1 = require("../common/emf");
+
+var ImageList =
+/** @class */
+function () {
+  function ImageList(files) {
+    if (files == null) {
+      return;
+    }
+
+    this.images = {};
+
+    for (var fileKey in files) {
+      // let reg = new RegExp("xl/media/image1.png", "g");
+      if (fileKey.indexOf("xl/media/") > -1) {
+        var fileNameArr = fileKey.split(".");
+        var suffix = fileNameArr[fileNameArr.length - 1].toLowerCase();
+
+        if (suffix in {
+          "png": 1,
+          "jpeg": 1,
+          "jpg": 1,
+          "gif": 1,
+          "bmp": 1,
+          "tif": 1,
+          "webp": 1,
+          "emf": 1
+        }) {
+          if (suffix == "emf") {
+            var pNum = 0; // number of the page, that you want to render
+
+            var scale = 1; // the scale of the document
+
+            var wrt = new emf_1.ToContext2D(pNum, scale);
+            var inp, out, stt;
+            emf_1.FromEMF.K = [];
+            inp = emf_1.FromEMF.C;
+            out = emf_1.FromEMF.K;
+            stt = 4;
+
+            for (var p in inp) {
+              out[inp[p]] = p.slice(stt);
+            }
+
+            emf_1.FromEMF.Parse(files[fileKey], wrt);
+            this.images[fileKey] = wrt.canvas.toDataURL("image/png");
+          } else {
+            this.images[fileKey] = files[fileKey];
+          }
+        }
+      }
+    }
+  }
+
+  ImageList.prototype.getImageByName = function (pathName) {
+    if (pathName in this.images) {
+      var base64 = this.images[pathName];
+      return new Image(pathName, base64);
+    }
+
+    return null;
+  };
+
+  return ImageList;
+}();
+
+exports.ImageList = ImageList;
+
+var Image =
+/** @class */
+function (_super) {
+  __extends(Image, _super);
+
+  function Image(pathName, base64) {
+    var _this = _super.call(this) || this;
+
+    _this.src = base64;
+    return _this;
+  }
+
+  Image.prototype.setDefault = function () {};
+
+  return Image;
+}(LuckyBase_1.LuckyImageBase);
+
+},{"../common/emf":92,"./LuckyBase":85}],89:[function(require,module,exports){
+"use strict";
+
+var __extends = void 0 && (void 0).__extends || function () {
+  var _extendStatics = function extendStatics(d, b) {
+    _extendStatics = Object.setPrototypeOf || {
+      __proto__: []
+    } instanceof Array && function (d, b) {
+      d.__proto__ = b;
+    } || function (d, b) {
+      for (var p in b) {
+        if (b.hasOwnProperty(p)) d[p] = b[p];
+      }
+    };
+
+    return _extendStatics(d, b);
+  };
+
+  return function (d, b) {
+    _extendStatics(d, b);
+
+    function __() {
+      this.constructor = d;
+    }
+
+    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+  };
+}();
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.LuckySheet = void 0;
+
+var LuckyCell_1 = require("./LuckyCell");
+
+var method_1 = require("../common/method");
+
+var ReadXml_1 = require("./ReadXml");
+
+var LuckyBase_1 = require("./LuckyBase");
+
+var LuckySheet =
+/** @class */
+function (_super) {
+  __extends(LuckySheet, _super);
+
+  function LuckySheet(sheetName, sheetId, sheetOrder, isInitialCell, allFileOption) {
+    if (isInitialCell === void 0) {
+      isInitialCell = false;
+    }
+
+    var _this = //Private
+    _super.call(this) || this;
+
+    _this.isInitialCell = isInitialCell;
+    _this.readXml = allFileOption.readXml;
+    _this.sheetFile = allFileOption.sheetFile;
+    _this.styles = allFileOption.styles;
+    _this.sharedStrings = allFileOption.sharedStrings;
+    _this.calcChainEles = allFileOption.calcChain;
+    _this.sheetList = allFileOption.sheetList;
+    _this.imageList = allFileOption.imageList; //Output
+
+    _this.name = sheetName;
+    _this.index = sheetId;
+    _this.order = sheetOrder.toString();
+    _this.config = new LuckyBase_1.LuckyConfig();
+    _this.celldata = [];
+    _this.mergeCells = _this.readXml.getElementsByTagName("mergeCells/mergeCell", _this.sheetFile);
+    var clrScheme = _this.styles["clrScheme"];
+
+    var sheetView = _this.readXml.getElementsByTagName("sheetViews/sheetView", _this.sheetFile);
+
+    var showGridLines = "1",
+        tabSelected = "0",
+        zoomScale = "100",
+        activeCell = "A1";
+
+    if (sheetView.length > 0) {
+      var attrList = sheetView[0].attributeList;
+      showGridLines = method_1.getXmlAttibute(attrList, "showGridLines", "1");
+      tabSelected = method_1.getXmlAttibute(attrList, "tabSelected", "0");
+      zoomScale = method_1.getXmlAttibute(attrList, "zoomScale", "100"); // let colorId = getXmlAttibute(attrList, "colorId", "0");
+
+      var selections = sheetView[0].getInnerElements("selection");
+
+      if (selections != null && selections.length > 0) {
+        activeCell = method_1.getXmlAttibute(selections[0].attributeList, "activeCell", "A1");
+        var range = method_1.getcellrange(activeCell, _this.sheetList, sheetId);
+        _this.luckysheet_select_save = [];
+
+        _this.luckysheet_select_save.push(range);
+      }
+    }
+
+    _this.showGridLines = showGridLines;
+    _this.status = tabSelected;
+    _this.zoomRatio = parseInt(zoomScale) / 100;
+
+    var tabColors = _this.readXml.getElementsByTagName("sheetPr/tabColor", _this.sheetFile);
+
+    if (tabColors != null && tabColors.length > 0) {
+      var tabColor = tabColors[0],
+          attrList = tabColor.attributeList; // if(attrList.rgb!=null){
+
+      var tc = ReadXml_1.getColor(tabColor, _this.styles, "b");
+      _this.color = tc; // }
+    }
+
+    var sheetFormatPr = _this.readXml.getElementsByTagName("sheetFormatPr", _this.sheetFile);
+
+    var defaultColWidth, defaultRowHeight;
+
+    if (sheetFormatPr.length > 0) {
+      var attrList = sheetFormatPr[0].attributeList;
+      defaultColWidth = method_1.getXmlAttibute(attrList, "defaultColWidth", "9.21");
+      defaultRowHeight = method_1.getXmlAttibute(attrList, "defaultRowHeight", "19");
+    }
+
+    _this.defaultColWidth = method_1.getColumnWidthPixel(parseFloat(defaultColWidth));
+    _this.defaultRowHeight = method_1.getRowHeightPixel(parseFloat(defaultRowHeight));
+
+    _this.generateConfigColumnLenAndHidden();
+
+    var cellOtherInfo = _this.generateConfigRowLenAndHiddenAddCell();
+
+    if (_this.formulaRefList != null) {
+      for (var key in _this.formulaRefList) {
+        var funclist = _this.formulaRefList[key];
+        var mainFunc = funclist["mainRef"],
+            mainCellValue = mainFunc.cellValue;
+        var formulaTxt = mainFunc.fv;
+        var mainR = mainCellValue.r,
+            mainC = mainCellValue.c; // let refRange = getcellrange(ref);
+
+        for (var name_1 in funclist) {
+          if (name_1 == "mainRef") {
+            continue;
+          }
+
+          var funcValue = funclist[name_1],
+              cellValue = funcValue.cellValue;
+
+          if (cellValue == null) {
+            continue;
+          }
+
+          var r = cellValue.r,
+              c = cellValue.c;
+          var func = formulaTxt;
+          var offsetRow = r - mainR,
+              offsetCol = c - mainC;
+
+          if (offsetRow > 0) {
+            func = "=" + method_1.fromulaRef.functionCopy(func, "down", offsetRow);
+          } else if (offsetRow < 0) {
+            func = "=" + method_1.fromulaRef.functionCopy(func, "up", Math.abs(offsetRow));
+          }
+
+          if (offsetCol > 0) {
+            func = "=" + method_1.fromulaRef.functionCopy(func, "right", offsetCol);
+          } else if (offsetCol < 0) {
+            func = "=" + method_1.fromulaRef.functionCopy(func, "left", Math.abs(offsetCol));
+          } // console.log(offsetRow, offsetCol, func);
+
+
+          cellValue.v.f = func;
+        }
+      }
+    }
+
+    if (_this.calcChain == null) {
+      _this.calcChain = [];
+    }
+
+    var formulaListExist = {};
+
+    for (var c = 0; c < _this.calcChainEles.length; c++) {
+      var calcChainEle = _this.calcChainEles[c],
+          attrList = calcChainEle.attributeList;
+
+      if (attrList.i != sheetId) {
+        continue;
+      }
+
+      var r = attrList.r,
+          i = attrList.i,
+          l = attrList.l,
+          s = attrList.s,
+          a = attrList.a,
+          t = attrList.t;
+      var range = method_1.getcellrange(r);
+      var chain = new LuckyBase_1.LuckysheetCalcChain();
+      chain.r = range.row[0];
+      chain.c = range.column[0];
+      chain.index = _this.index;
+
+      _this.calcChain.push(chain);
+
+      formulaListExist["r" + r + "c" + c] = null;
+    } //There may be formulas that do not appear in calcChain
+
+
+    for (var key in cellOtherInfo.formulaList) {
+      if (!(key in formulaListExist)) {
+        var formulaListItem = cellOtherInfo.formulaList[key];
+        var chain = new LuckyBase_1.LuckysheetCalcChain();
+        chain.r = formulaListItem.r;
+        chain.c = formulaListItem.c;
+        chain.index = _this.index;
+
+        _this.calcChain.push(chain);
+      }
+    }
+
+    if (_this.mergeCells != null) {
+      for (var i = 0; i < _this.mergeCells.length; i++) {
+        var merge = _this.mergeCells[i],
+            attrList = merge.attributeList;
+        var ref = attrList.ref;
+
+        if (ref == null) {
+          continue;
+        }
+
+        var range = method_1.getcellrange(ref, _this.sheetList, sheetId);
+        var mergeValue = new LuckyBase_1.LuckySheetConfigMerge();
+        mergeValue.r = range.row[0];
+        mergeValue.c = range.column[0];
+        mergeValue.rs = range.row[1] - range.row[0] + 1;
+        mergeValue.cs = range.column[1] - range.column[0] + 1;
+
+        if (_this.config.merge == null) {
+          _this.config.merge = {};
+        }
+
+        _this.config.merge[range.row[0] + "_" + range.column[0]] = mergeValue;
+      }
+    }
+
+    var drawingFile = allFileOption.drawingFile,
+        drawingRelsFile = allFileOption.drawingRelsFile;
+
+    if (drawingFile != null && drawingRelsFile != null) {
+      var twoCellAnchors = _this.readXml.getElementsByTagName("xdr:twoCellAnchor", drawingFile);
+
+      if (twoCellAnchors != null && twoCellAnchors.length > 0) {
+        for (var i = 0; i < twoCellAnchors.length; i++) {
+          var twoCellAnchor = twoCellAnchors[i];
+          var editAs = method_1.getXmlAttibute(twoCellAnchor.attributeList, "editAs", "twoCell");
+          var xdrFroms = twoCellAnchor.getInnerElements("xdr:from"),
+              xdrTos = twoCellAnchor.getInnerElements("xdr:to");
+          var xdr_blipfills = twoCellAnchor.getInnerElements("a:blip");
+
+          if (xdrFroms != null && xdr_blipfills != null && xdrFroms.length > 0 && xdr_blipfills.length > 0) {
+            var xdrFrom = xdrFroms[0],
+                xdrTo = xdrTos[0],
+                xdr_blipfill = xdr_blipfills[0];
+            var rembed = method_1.getXmlAttibute(xdr_blipfill.attributeList, "r:embed", null);
+
+            var imageObject = _this.getBase64ByRid(rembed, drawingRelsFile); // let aoff = xdr_xfrm.getInnerElements("a:off"), aext = xdr_xfrm.getInnerElements("a:ext");
+            // if(aoff!=null && aext!=null && aoff.length>0 && aext.length>0){
+            //     let aoffAttribute = aoff[0].attributeList, aextAttribute = aext[0].attributeList;
+            //     let x = getXmlAttibute(aoffAttribute, "x", null);
+            //     let y = getXmlAttibute(aoffAttribute, "y", null);
+            //     let cx = getXmlAttibute(aextAttribute, "cx", null);
+            //     let cy = getXmlAttibute(aextAttribute, "cy", null);
+            //     if(x!=null && y!=null && cx!=null && cy!=null && imageObject !=null){
+            // let x_n = getPxByEMUs(parseInt(x), "c"),y_n = getPxByEMUs(parseInt(y));
+            // let cx_n = getPxByEMUs(parseInt(cx), "c"),cy_n = getPxByEMUs(parseInt(cy));
+
+
+            var x_n = 0,
+                y_n = 0;
+            var cx_n = 0,
+                cy_n = 0;
+            imageObject.fromCol = _this.getXdrValue(xdrFrom.getInnerElements("xdr:col"));
+            imageObject.fromColOff = method_1.getPxByEMUs(_this.getXdrValue(xdrFrom.getInnerElements("xdr:colOff")));
+            imageObject.fromRow = _this.getXdrValue(xdrFrom.getInnerElements("xdr:row"));
+            imageObject.fromRowOff = method_1.getPxByEMUs(_this.getXdrValue(xdrFrom.getInnerElements("xdr:rowOff")));
+            imageObject.toCol = _this.getXdrValue(xdrTo.getInnerElements("xdr:col"));
+            imageObject.toColOff = method_1.getPxByEMUs(_this.getXdrValue(xdrTo.getInnerElements("xdr:colOff")));
+            imageObject.toRow = _this.getXdrValue(xdrTo.getInnerElements("xdr:row"));
+            imageObject.toRowOff = method_1.getPxByEMUs(_this.getXdrValue(xdrTo.getInnerElements("xdr:rowOff")));
+            imageObject.originWidth = cx_n;
+            imageObject.originHeight = cy_n;
+
+            if (editAs == "absolute") {
+              imageObject.type = "3";
+            } else if (editAs == "oneCell") {
+              imageObject.type = "2";
+            } else {
+              imageObject.type = "1";
+            }
+
+            imageObject.isFixedPos = false;
+            imageObject.fixedLeft = 0;
+            imageObject.fixedTop = 0;
+            var imageBorder = {
+              color: "#000",
+              radius: 0,
+              style: "solid",
+              width: 0
+            };
+            imageObject.border = imageBorder;
+            var imageCrop = {
+              height: cy_n,
+              offsetLeft: 0,
+              offsetTop: 0,
+              width: cx_n
+            };
+            imageObject.crop = imageCrop;
+            var imageDefault = {
+              height: cy_n,
+              left: x_n,
+              top: y_n,
+              width: cx_n
+            };
+            imageObject["default"] = imageDefault;
+
+            if (_this.images == null) {
+              _this.images = {};
+            }
+
+            _this.images[method_1.generateRandomIndex("image")] = imageObject; //     }
+            // }
+          }
+        }
+      }
+    }
+
+    return _this;
+  }
+
+  LuckySheet.prototype.getXdrValue = function (ele) {
+    if (ele == null || ele.length == 0) {
+      return null;
+    }
+
+    return parseInt(ele[0].value);
+  };
+
+  LuckySheet.prototype.getBase64ByRid = function (rid, drawingRelsFile) {
+    var Relationships = this.readXml.getElementsByTagName("Relationships/Relationship", drawingRelsFile);
+
+    if (Relationships != null && Relationships.length > 0) {
+      for (var i = 0; i < Relationships.length; i++) {
+        var Relationship = Relationships[i];
+        var attrList = Relationship.attributeList;
+        var Id = method_1.getXmlAttibute(attrList, "Id", null);
+        var src = method_1.getXmlAttibute(attrList, "Target", null);
+
+        if (Id == rid) {
+          src = src.replace(/\.\.\//g, "");
+          src = "xl/" + src;
+          var imgage = this.imageList.getImageByName(src);
+          return imgage;
+        }
+      }
+    }
+
+    return null;
+  };
+  /**
+  * @desc This will convert cols/col to luckysheet config of column'width
+  */
+
+
+  LuckySheet.prototype.generateConfigColumnLenAndHidden = function () {
+    var cols = this.readXml.getElementsByTagName("cols/col", this.sheetFile);
+
+    for (var i = 0; i < cols.length; i++) {
+      var col = cols[i],
+          attrList = col.attributeList;
+      var min = method_1.getXmlAttibute(attrList, "min", null);
+      var max = method_1.getXmlAttibute(attrList, "max", null);
+      var width = method_1.getXmlAttibute(attrList, "width", null);
+      var hidden = method_1.getXmlAttibute(attrList, "hidden", null);
+      var customWidth = method_1.getXmlAttibute(attrList, "customWidth", null);
+
+      if (min == null || max == null) {
+        continue;
+      }
+
+      var minNum = parseInt(min) - 1,
+          maxNum = parseInt(max) - 1,
+          widthNum = parseFloat(width);
+
+      for (var m = minNum; m <= maxNum; m++) {
+        if (width != null) {
+          if (this.config.columnlen == null) {
+            this.config.columnlen = {};
+          }
+
+          this.config.columnlen[m] = method_1.getColumnWidthPixel(widthNum);
+        }
+
+        if (hidden == "1") {
+          if (this.config.colhidden == null) {
+            this.config.colhidden = {};
+          }
+
+          this.config.colhidden[m] = 0;
+
+          if (this.config.columnlen) {
+            delete this.config.columnlen[m];
+          }
+        }
+
+        if (customWidth != null) {
+          if (this.config.customWidth == null) {
+            this.config.customWidth = {};
+          }
+
+          this.config.customWidth[m] = 1;
+        }
+      }
+    }
+  };
+  /**
+  * @desc This will convert cols/col to luckysheet config of column'width
+  */
+
+
+  LuckySheet.prototype.generateConfigRowLenAndHiddenAddCell = function () {
+    var rows = this.readXml.getElementsByTagName("sheetData/row", this.sheetFile);
+    var cellOtherInfo = {};
+    var formulaList = {};
+    cellOtherInfo.formulaList = formulaList;
+
+    for (var i = 0; i < rows.length; i++) {
+      var row = rows[i],
+          attrList = row.attributeList;
+      var rowNo = method_1.getXmlAttibute(attrList, "r", null);
+      var height = method_1.getXmlAttibute(attrList, "ht", null);
+      var hidden = method_1.getXmlAttibute(attrList, "hidden", null);
+      var customHeight = method_1.getXmlAttibute(attrList, "customHeight", null);
+
+      if (rowNo == null) {
+        continue;
+      }
+
+      var rowNoNum = parseInt(rowNo) - 1;
+
+      if (height != null) {
+        var heightNum = parseFloat(height);
+
+        if (this.config.rowlen == null) {
+          this.config.rowlen = {};
+        }
+
+        this.config.rowlen[rowNoNum] = method_1.getRowHeightPixel(heightNum);
+      }
+
+      if (hidden == "1") {
+        if (this.config.rowhidden == null) {
+          this.config.rowhidden = {};
+        }
+
+        this.config.rowhidden[rowNoNum] = 0;
+
+        if (this.config.rowlen) {
+          delete this.config.rowlen[rowNoNum];
+        }
+      }
+
+      if (customHeight != null) {
+        if (this.config.customHeight == null) {
+          this.config.customHeight = {};
+        }
+
+        this.config.customHeight[rowNoNum] = 1;
+      }
+
+      if (this.isInitialCell) {
+        var cells = row.getInnerElements("c");
+
+        for (var key in cells) {
+          var cell = cells[key];
+          var cellValue = new LuckyCell_1.LuckySheetCelldata(cell, this.styles, this.sharedStrings, this.mergeCells, this.sheetFile, this.readXml);
+
+          if (cellValue._borderObject != null) {
+            if (this.config.borderInfo == null) {
+              this.config.borderInfo = [];
+            }
+
+            this.config.borderInfo.push(cellValue._borderObject);
+            delete cellValue._borderObject;
+          } // let borderId = cellValue._borderId;
+          // if(borderId!=null){
+          //     let borders = this.styles["borders"] as Element[];
+          //     if(this.config._borderInfo==null){
+          //         this.config._borderInfo = {};
+          //     }
+          //     if( borderId in this.config._borderInfo){
+          //         this.config._borderInfo[borderId].cells.push(cellValue.r + "_" + cellValue.c);
+          //     }
+          //     else{
+          //         let border = borders[borderId];
+          //         let borderObject = new LuckySheetborderInfoCellForImp();
+          //         borderObject.rangeType = "cellGroup";
+          //         borderObject.cells = [];
+          //         let borderCellValue = new LuckySheetborderInfoCellValue();
+          //         let lefts = border.getInnerElements("left");
+          //         let rights = border.getInnerElements("right");
+          //         let tops = border.getInnerElements("top");
+          //         let bottoms = border.getInnerElements("bottom");
+          //         let diagonals = border.getInnerElements("diagonal");
+          //         let left = this.getBorderInfo(lefts);
+          //         let right = this.getBorderInfo(rights);
+          //         let top = this.getBorderInfo(tops);
+          //         let bottom = this.getBorderInfo(bottoms);
+          //         let diagonal = this.getBorderInfo(diagonals);
+          //         let isAdd = false;
+          //         if(left!=null && left.color!=null){
+          //             borderCellValue.l = left;
+          //             isAdd = true;
+          //         }
+          //         if(right!=null && right.color!=null){
+          //             borderCellValue.r = right;
+          //             isAdd = true;
+          //         }
+          //         if(top!=null && top.color!=null){
+          //             borderCellValue.t = top;
+          //             isAdd = true;
+          //         }
+          //         if(bottom!=null && bottom.color!=null){
+          //             borderCellValue.b = bottom;
+          //             isAdd = true;
+          //         }
+          //         if(isAdd){
+          //             borderObject.value = borderCellValue;
+          //             this.config._borderInfo[borderId] = borderObject;
+          //         }
+          //     }
+          // }
+
+
+          if (cellValue._formulaType == "shared") {
+            if (this.formulaRefList == null) {
+              this.formulaRefList = {};
+            }
+
+            if (this.formulaRefList[cellValue._formulaSi] == null) {
+              this.formulaRefList[cellValue._formulaSi] = {};
+            }
+
+            var fv = void 0;
+
+            if (cellValue.v != null) {
+              fv = cellValue.v.f;
+            }
+
+            var refValue = {
+              t: cellValue._formulaType,
+              ref: cellValue._fomulaRef,
+              si: cellValue._formulaSi,
+              fv: fv,
+              cellValue: cellValue
+            };
+
+            if (cellValue._fomulaRef != null) {
+              this.formulaRefList[cellValue._formulaSi]["mainRef"] = refValue;
+            } else {
+              this.formulaRefList[cellValue._formulaSi][cellValue.r + "_" + cellValue.c] = refValue;
+            } // console.log(refValue, this.formulaRefList);
+
+          } //There may be formulas that do not appear in calcChain
+
+
+          if (cellValue.v != null && cellValue.v.f != null) {
+            var formulaCell = {
+              r: cellValue.r,
+              c: cellValue.c
+            };
+            cellOtherInfo.formulaList["r" + cellValue.r + "c" + cellValue.c] = formulaCell;
+          }
+
+          this.celldata.push(cellValue);
+        }
+      }
+    }
+
+    return cellOtherInfo;
+  };
+
+  return LuckySheet;
+}(LuckyBase_1.LuckySheetBase);
+
+exports.LuckySheet = LuckySheet;
+
+},{"../common/method":93,"./LuckyBase":85,"./LuckyCell":86,"./ReadXml":90}],90:[function(require,module,exports){
+"use strict";
+
+var __extends = void 0 && (void 0).__extends || function () {
+  var _extendStatics = function extendStatics(d, b) {
+    _extendStatics = Object.setPrototypeOf || {
+      __proto__: []
+    } instanceof Array && function (d, b) {
+      d.__proto__ = b;
+    } || function (d, b) {
+      for (var p in b) {
+        if (b.hasOwnProperty(p)) d[p] = b[p];
+      }
+    };
+
+    return _extendStatics(d, b);
+  };
+
+  return function (d, b) {
+    _extendStatics(d, b);
+
+    function __() {
+      this.constructor = d;
+    }
+
+    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+  };
+}();
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getlineStringAttr = exports.getColor = exports.Element = exports.ReadXml = void 0;
+
+var constant_1 = require("../common/constant");
+
+var method_1 = require("../common/method");
+
+var xmloperation =
+/** @class */
+function () {
+  function xmloperation() {}
+  /**
+  * @param tag Search xml tag name , div,title etc.
+  * @param file Xml string
+  * @return Xml element string
+  */
+
+
+  xmloperation.prototype.getElementsByOneTag = function (tag, file) {
+    //<a:[^/>: ]+?>.*?</a:[^/>: ]+?>
+    var readTagReg;
+
+    if (tag.indexOf("|") > -1) {
+      var tags = tag.split("|"),
+          tagsRegTxt = "";
+
+      for (var i = 0; i < tags.length; i++) {
+        var t = tags[i];
+        tagsRegTxt += "|<" + t + " [^>]+?[^/]>[\\s\\S]*?</" + t + ">|<" + t + " [^>]+?/>|<" + t + ">[\\s\\S]*?</" + t + ">|<" + t + "/>";
+      }
+
+      tagsRegTxt = tagsRegTxt.substr(1, tagsRegTxt.length);
+      readTagReg = new RegExp(tagsRegTxt, "g");
+    } else {
+      readTagReg = new RegExp("<" + tag + " [^>]+?[^/]>[\\s\\S]*?</" + tag + ">|<" + tag + " [^>]+?/>|<" + tag + ">[\\s\\S]*?</" + tag + ">|<" + tag + "/>", "g");
+    }
+
+    var ret = file.match(readTagReg);
+
+    if (ret == null) {
+      return [];
+    } else {
+      return ret;
+    }
+  };
+
+  return xmloperation;
+}();
+
+var ReadXml =
+/** @class */
+function (_super) {
+  __extends(ReadXml, _super);
+
+  function ReadXml(files) {
+    var _this = _super.call(this) || this;
+
+    _this.originFile = files;
+    return _this;
+  }
+  /**
+  * @param path Search xml tag group , div,title etc.
+  * @param fileName One of uploadfileList, uploadfileList is file group, {key:value}
+  * @return Xml element calss
+  */
+
+
+  ReadXml.prototype.getElementsByTagName = function (path, fileName) {
+    var file = this.getFileByName(fileName);
+    var pathArr = path.split("/"),
+        ret;
+
+    for (var key in pathArr) {
+      var path_1 = pathArr[key];
+
+      if (ret == undefined) {
+        ret = this.getElementsByOneTag(path_1, file);
+      } else {
+        if (ret instanceof Array) {
+          var items = [];
+
+          for (var key_1 in ret) {
+            var item = ret[key_1];
+            items = items.concat(this.getElementsByOneTag(path_1, item));
+          }
+
+          ret = items;
+        } else {
+          ret = this.getElementsByOneTag(path_1, ret);
+        }
+      }
+    }
+
+    var elements = [];
+
+    for (var i = 0; i < ret.length; i++) {
+      var ele = new Element(ret[i]);
+      elements.push(ele);
+    }
+
+    return elements;
+  };
+  /**
+  * @param name One of uploadfileList's name, search for file by this parameter
+  * @retrun Select a file from uploadfileList
+  */
+
+
+  ReadXml.prototype.getFileByName = function (name) {
+    for (var fileKey in this.originFile) {
+      if (fileKey.indexOf(name) > -1) {
+        return this.originFile[fileKey];
+      }
+    }
+
+    return "";
+  };
+
+  return ReadXml;
+}(xmloperation);
+
+exports.ReadXml = ReadXml;
+
+var Element =
+/** @class */
+function (_super) {
+  __extends(Element, _super);
+
+  function Element(str) {
+    var _this = _super.call(this) || this;
+
+    _this.elementString = str;
+
+    _this.setValue();
+
+    var readAttrReg = new RegExp('[a-zA-Z0-9_:]*?=".*?"', "g");
+
+    var attrList = _this.container.match(readAttrReg);
+
+    _this.attributeList = {};
+
+    if (attrList != null) {
+      for (var key in attrList) {
+        var attrFull = attrList[key]; // let al= attrFull.split("=");
+
+        if (attrFull.length == 0) {
+          continue;
+        }
+
+        var attrKey = attrFull.substr(0, attrFull.indexOf('='));
+        var attrValue = attrFull.substr(attrFull.indexOf('=') + 1);
+
+        if (attrKey == null || attrValue == null || attrKey.length == 0 || attrValue.length == 0) {
+          continue;
+        }
+
+        _this.attributeList[attrKey] = attrValue.substr(1, attrValue.length - 2);
+      }
+    }
+
+    return _this;
+  }
+  /**
+  * @param name Get attribute by key in element
+  * @return Single attribute
+  */
+
+
+  Element.prototype.get = function (name) {
+    return this.attributeList[name];
+  };
+  /**
+  * @param tag Get elements by tag in elementString
+  * @return Element group
+  */
+
+
+  Element.prototype.getInnerElements = function (tag) {
+    var ret = this.getElementsByOneTag(tag, this.elementString);
+    var elements = [];
+
+    for (var i = 0; i < ret.length; i++) {
+      var ele = new Element(ret[i]);
+      elements.push(ele);
+    }
+
+    if (elements.length == 0) {
+      return null;
+    }
+
+    return elements;
+  };
+  /**
+  * @desc get xml dom value and container, <container>value</container>
+  */
+
+
+  Element.prototype.setValue = function () {
+    var str = this.elementString;
+
+    if (str.substr(str.length - 2, 2) == "/>") {
+      this.value = "";
+      this.container = str;
+    } else {
+      var firstTag = this.getFirstTag();
+      var firstTagReg = new RegExp("(<" + firstTag + " [^>]+?[^/]>)([\\s\\S]*?)</" + firstTag + ">|(<" + firstTag + ">)([\\s\\S]*?)</" + firstTag + ">", "g");
+      var result = firstTagReg.exec(str);
+
+      if (result != null) {
+        if (result[1] != null) {
+          this.container = result[1];
+          this.value = result[2];
+        } else {
+          this.container = result[3];
+          this.value = result[4];
+        }
+      }
+    }
+  };
+  /**
+  * @desc get xml dom first tag, <a><b></b></a>, get a
+  */
+
+
+  Element.prototype.getFirstTag = function () {
+    var str = this.elementString;
+    var firstTag = str.substr(0, str.indexOf(' '));
+
+    if (firstTag == "" || firstTag.indexOf(">") > -1) {
+      firstTag = str.substr(0, str.indexOf('>'));
+    }
+
+    firstTag = firstTag.substr(1, firstTag.length);
+    return firstTag;
+  };
+
+  return Element;
+}(xmloperation);
+
+exports.Element = Element;
+
+function combineIndexedColor(indexedColorsInner, indexedColors) {
+  var ret = {};
+
+  if (indexedColorsInner == null || indexedColorsInner.length == 0) {
+    return indexedColors;
+  }
+
+  for (var key in indexedColors) {
+    var value = indexedColors[key],
+        kn = parseInt(key);
+    var inner = indexedColorsInner[kn];
+
+    if (inner == null) {
+      ret[key] = value;
+    } else {
+      var rgb = inner.attributeList.rgb;
+      ret[key] = rgb;
+    }
+  }
+
+  return ret;
+} //clrScheme:Element[]
+
+
+function getColor(color, styles, type) {
+  if (type === void 0) {
+    type = "g";
+  }
+
+  var attrList = color.attributeList;
+  var clrScheme = styles["clrScheme"];
+  var indexedColorsInner = styles["indexedColors"];
+  var mruColorsInner = styles["mruColors"];
+  var indexedColorsList = combineIndexedColor(indexedColorsInner, constant_1.indexedColors);
+  var indexed = attrList.indexed,
+      rgb = attrList.rgb,
+      theme = attrList.theme,
+      tint = attrList.tint;
+  var bg;
+
+  if (indexed != null) {
+    var indexedNum = parseInt(indexed);
+    bg = indexedColorsList[indexedNum];
+
+    if (bg != null) {
+      bg = bg.substring(bg.length - 6, bg.length);
+      bg = "#" + bg;
+    }
+  } else if (rgb != null) {
+    rgb = rgb.substring(rgb.length - 6, rgb.length);
+    bg = "#" + rgb;
+  } else if (theme != null) {
+    var themeNum = parseInt(theme);
+
+    if (themeNum == 0) {
+      themeNum = 1;
+    } else if (themeNum == 1) {
+      themeNum = 0;
+    } else if (themeNum == 2) {
+      themeNum = 3;
+    } else if (themeNum == 3) {
+      themeNum = 2;
+    }
+
+    var clrSchemeElement = clrScheme[themeNum];
+
+    if (clrSchemeElement != null) {
+      var clrs = clrSchemeElement.getInnerElements("a:sysClr|a:srgbClr");
+
+      if (clrs != null) {
+        var clr = clrs[0];
+        var clrAttrList = clr.attributeList; // console.log(clr.container, );
+
+        if (clr.container.indexOf("sysClr") > -1) {
+          // if(type=="g" && clrAttrList.val=="windowText"){
+          //     bg = null;
+          // }
+          // else if((type=="t" || type=="b") && clrAttrList.val=="window"){
+          //     bg = null;
+          // }                    
+          // else 
+          if (clrAttrList.lastClr != null) {
+            bg = "#" + clrAttrList.lastClr;
+          } else if (clrAttrList.val != null) {
+            bg = "#" + clrAttrList.val;
+          }
+        } else if (clr.container.indexOf("srgbClr") > -1) {
+          // console.log(clrAttrList.val);
+          bg = "#" + clrAttrList.val;
+        }
+      }
+    }
+  }
+
+  if (tint != null) {
+    var tintNum = parseFloat(tint);
+
+    if (bg != null) {
+      bg = method_1.LightenDarkenColor(bg, tintNum);
+    }
+  }
+
+  return bg;
+}
+
+exports.getColor = getColor;
+/**
+ * @dom xml attribute object
+ * @attr attribute name
+ * @d if attribute is null, return default value
+ * @return attribute value
+*/
+
+function getlineStringAttr(frpr, attr) {
+  var attrEle = frpr.getInnerElements(attr),
+      value;
+
+  if (attrEle != null && attrEle.length > 0) {
+    if (attr == "b" || attr == "i" || attr == "strike") {
+      value = "1";
+    } else if (attr == "u") {
+      var v = attrEle[0].attributeList.val;
+
+      if (v == "double") {
+        value = "2";
+      } else if (v == "singleAccounting") {
+        value = "3";
+      } else if (v == "doubleAccounting") {
+        value = "4";
+      } else {
+        value = "1";
+      }
+    } else if (attr == "vertAlign") {
+      var v = attrEle[0].attributeList.val;
+
+      if (v == "subscript") {
+        value = "1";
+      } else if (v == "superscript") {
+        value = "2";
+      }
+    } else {
+      value = attrEle[0].attributeList.val;
+    }
+  }
+
+  return value;
+}
+
+exports.getlineStringAttr = getlineStringAttr;
+
+},{"../common/constant":91,"../common/method":93}],91:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.fontFamilys = exports.borderTypes = exports.OEM_CHARSET = exports.indexedColors = exports.numFmtDefault = exports.BuiltInCellStyles = exports.ST_CellType = exports.workbookRels = exports.theme1File = exports.worksheetFilePath = exports.sharedStringsFile = exports.stylesFile = exports.calcChainFile = exports.workBookFile = exports.contentTypesFile = exports.appFile = exports.coreFile = exports.columeHeader_word_index = exports.columeHeader_word = void 0;
+exports.columeHeader_word = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];
+exports.columeHeader_word_index = {
+  'A': 0,
+  'B': 1,
+  'C': 2,
+  'D': 3,
+  'E': 4,
+  'F': 5,
+  'G': 6,
+  'H': 7,
+  'I': 8,
+  'J': 9,
+  'K': 10,
+  'L': 11,
+  'M': 12,
+  'N': 13,
+  'O': 14,
+  'P': 15,
+  'Q': 16,
+  'R': 17,
+  'S': 18,
+  'T': 19,
+  'U': 20,
+  'V': 21,
+  'W': 22,
+  'X': 23,
+  'Y': 24,
+  'Z': 25
+};
+exports.coreFile = "docProps/core.xml";
+exports.appFile = "docProps/app.xml";
+exports.contentTypesFile = "[Content_Types].xml";
+exports.workBookFile = "xl/workbook.xml";
+exports.calcChainFile = "xl/calcChain.xml";
+exports.stylesFile = "xl/styles.xml";
+exports.sharedStringsFile = "xl/sharedStrings.xml";
+exports.worksheetFilePath = "xl/worksheets/";
+exports.theme1File = "xl/theme/theme1.xml";
+exports.workbookRels = "xl/_rels/workbook.xml.rels"; //Excel Built-In cell type
+
+exports.ST_CellType = {
+  "Boolean": "b",
+  "Date": "d",
+  "Error": "e",
+  "InlineString": "inlineStr",
+  "Number": "n",
+  "SharedString": "s",
+  "String": "str"
+}; //Excel Built-In cell style
+
+exports.BuiltInCellStyles = {
+  "0": "Normal"
+};
+exports.numFmtDefault = {
+  "0": 'General',
+  "1": '0',
+  "2": '0.00',
+  "3": '#,##0',
+  "4": '#,##0.00',
+  "9": '0%',
+  "10": '0.00%',
+  "11": '0.00E+00',
+  "12": '# ?/?',
+  "13": '# ??/??',
+  "14": 'm/d/yy',
+  "15": 'd-mmm-yy',
+  "16": 'd-mmm',
+  "17": 'mmm-yy',
+  "18": 'h:mm AM/PM',
+  "19": 'h:mm:ss AM/PM',
+  "20": 'h:mm',
+  "21": 'h:mm:ss',
+  "22": 'm/d/yy h:mm',
+  "37": '#,##0 ;(#,##0)',
+  "38": '#,##0 ;[Red](#,##0)',
+  "39": '#,##0.00;(#,##0.00)',
+  "40": '#,##0.00;[Red](#,##0.00)',
+  "45": 'mm:ss',
+  "46": '[h]:mm:ss',
+  "47": 'mmss.0',
+  "48": '##0.0E+0',
+  "49": '@'
+};
+exports.indexedColors = {
+  "0": '00000000',
+  "1": '00FFFFFF',
+  "2": '00FF0000',
+  "3": '0000FF00',
+  "4": '000000FF',
+  "5": '00FFFF00',
+  "6": '00FF00FF',
+  "7": '0000FFFF',
+  "8": '00000000',
+  "9": '00FFFFFF',
+  "10": '00FF0000',
+  "11": '0000FF00',
+  "12": '000000FF',
+  "13": '00FFFF00',
+  "14": '00FF00FF',
+  "15": '0000FFFF',
+  "16": '00800000',
+  "17": '00008000',
+  "18": '00000080',
+  "19": '00808000',
+  "20": '00800080',
+  "21": '00008080',
+  "22": '00C0C0C0',
+  "23": '00808080',
+  "24": '009999FF',
+  "25": '00993366',
+  "26": '00FFFFCC',
+  "27": '00CCFFFF',
+  "28": '00660066',
+  "29": '00FF8080',
+  "30": '000066CC',
+  "31": '00CCCCFF',
+  "32": '00000080',
+  "33": '00FF00FF',
+  "34": '00FFFF00',
+  "35": '0000FFFF',
+  "36": '00800080',
+  "37": '00800000',
+  "38": '00008080',
+  "39": '000000FF',
+  "40": '0000CCFF',
+  "41": '00CCFFFF',
+  "42": '00CCFFCC',
+  "43": '00FFFF99',
+  "44": '0099CCFF',
+  "45": '00FF99CC',
+  "46": '00CC99FF',
+  "47": '00FFCC99',
+  "48": '003366FF',
+  "49": '0033CCCC',
+  "50": '0099CC00',
+  "51": '00FFCC00',
+  "52": '00FF9900',
+  "53": '00FF6600',
+  "54": '00666699',
+  "55": '00969696',
+  "56": '00003366',
+  "57": '00339966',
+  "58": '00003300',
+  "59": '00333300',
+  "60": '00993300',
+  "61": '00993366',
+  "62": '00333399',
+  "63": '00333333',
+  "64": null,
+  "65": null
+};
+exports.OEM_CHARSET = {
+  "0": "ANSI_CHARSET",
+  "1": "DEFAULT_CHARSET",
+  "2": "SYMBOL_CHARSET",
+  "77": "MAC_CHARSET",
+  "128": "SHIFTJIS_CHARSET",
+  "129": "HANGUL_CHARSET",
+  "130": "JOHAB_CHARSET",
+  "134": "GB2312_CHARSET",
+  "136": "CHINESEBIG5_CHARSET",
+  "161": "GREEK_CHARSET",
+  "162": "TURKISH_CHARSET",
+  "163": "VIETNAMESE_CHARSET",
+  "177": "HEBREW_CHARSET",
+  "178": "ARABIC_CHARSET",
+  "186": "BALTIC_CHARSET",
+  "204": "RUSSIAN_CHARSET",
+  "222": "THAI_CHARSET",
+  "238": "EASTEUROPE_CHARSET",
+  "255": "OEM_CHARSET"
+};
+exports.borderTypes = {
+  "none": 0,
+  "thin": 1,
+  "hair": 2,
+  "dotted": 3,
+  "dashed": 4,
+  "dashDot": 5,
+  "dashDotDot": 6,
+  "double": 7,
+  "medium": 8,
+  "mediumDashed": 9,
+  "mediumDashDot": 10,
+  "mediumDashDotDot": 11,
+  "slantDashDot": 12,
+  "thick": 13
+};
+exports.fontFamilys = {
+  "0": "defualt",
+  "1": "Roman",
+  "2": "Swiss",
+  "3": "Modern",
+  "4": "Script",
+  "5": "Decorative"
+};
+
+},{}],92:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ToContext2D = exports.FromEMF = exports.UDOC = void 0;
+exports.UDOC = {};
+exports.UDOC.G = {
+  concat: function concat(p, r) {
+    for (var i = 0; i < r.cmds.length; i++) {
+      p.cmds.push(r.cmds[i]);
+    }
+
+    for (var i = 0; i < r.crds.length; i++) {
+      p.crds.push(r.crds[i]);
+    }
+  },
+  getBB: function getBB(ps) {
+    var x0 = 1e99,
+        y0 = 1e99,
+        x1 = -x0,
+        y1 = -y0;
+
+    for (var i = 0; i < ps.length; i += 2) {
+      var x = ps[i],
+          y = ps[i + 1];
+      if (x < x0) x0 = x;else if (x > x1) x1 = x;
+      if (y < y0) y0 = y;else if (y > y1) y1 = y;
+    }
+
+    return [x0, y0, x1, y1];
+  },
+  rectToPath: function rectToPath(r) {
+    return {
+      cmds: ["M", "L", "L", "L", "Z"],
+      crds: [r[0], r[1], r[2], r[1], r[2], r[3], r[0], r[3]]
+    };
+  },
+  // a inside b
+  insideBox: function insideBox(a, b) {
+    return b[0] <= a[0] && b[1] <= a[1] && a[2] <= b[2] && a[3] <= b[3];
+  },
+  isBox: function isBox(p, bb) {
+    var sameCrd8 = function sameCrd8(pcrd, crds) {
+      for (var o = 0; o < 8; o += 2) {
+        var eq = true;
+
+        for (var j = 0; j < 8; j++) {
+          if (Math.abs(crds[j] - pcrd[j + o & 7]) >= 2) {
+            eq = false;
+            break;
+          }
+        }
+
+        if (eq) return true;
+      }
+
+      return false;
+    };
+
+    if (p.cmds.length > 10) return false;
+    var cmds = p.cmds.join(""),
+        crds = p.crds;
+    var sameRect = false;
+
+    if (cmds == "MLLLZ" && crds.length == 8 || cmds == "MLLLLZ" && crds.length == 10) {
+      if (crds.length == 10) crds = crds.slice(0, 8);
+      var x0 = bb[0],
+          y0 = bb[1],
+          x1 = bb[2],
+          y1 = bb[3];
+      if (!sameRect) sameRect = sameCrd8(crds, [x0, y0, x1, y0, x1, y1, x0, y1]);
+      if (!sameRect) sameRect = sameCrd8(crds, [x0, y1, x1, y1, x1, y0, x0, y0]);
+    }
+
+    return sameRect;
+  },
+  boxArea: function boxArea(a) {
+    var w = a[2] - a[0],
+        h = a[3] - a[1];
+    return w * h;
+  },
+  newPath: function newPath(gst) {
+    gst.pth = {
+      cmds: [],
+      crds: []
+    };
+  },
+  moveTo: function moveTo(gst, x, y) {
+    var p = exports.UDOC.M.multPoint(gst.ctm, [x, y]); //if(gst.cpos[0]==p[0] && gst.cpos[1]==p[1]) return;
+
+    gst.pth.cmds.push("M");
+    gst.pth.crds.push(p[0], p[1]);
+    gst.cpos = p;
+  },
+  lineTo: function lineTo(gst, x, y) {
+    var p = exports.UDOC.M.multPoint(gst.ctm, [x, y]);
+    if (gst.cpos[0] == p[0] && gst.cpos[1] == p[1]) return;
+    gst.pth.cmds.push("L");
+    gst.pth.crds.push(p[0], p[1]);
+    gst.cpos = p;
+  },
+  curveTo: function curveTo(gst, x1, y1, x2, y2, x3, y3) {
+    var p;
+    p = exports.UDOC.M.multPoint(gst.ctm, [x1, y1]);
+    x1 = p[0];
+    y1 = p[1];
+    p = exports.UDOC.M.multPoint(gst.ctm, [x2, y2]);
+    x2 = p[0];
+    y2 = p[1];
+    p = exports.UDOC.M.multPoint(gst.ctm, [x3, y3]);
+    x3 = p[0];
+    y3 = p[1];
+    gst.cpos = p;
+    gst.pth.cmds.push("C");
+    gst.pth.crds.push(x1, y1, x2, y2, x3, y3);
+  },
+  closePath: function closePath(gst) {
+    gst.pth.cmds.push("Z");
+  },
+  arc: function arc(gst, x, y, r, a0, a1, neg) {
+    // circle from a0 counter-clock-wise to a1
+    if (neg) while (a1 > a0) {
+      a1 -= 2 * Math.PI;
+    } else while (a1 < a0) {
+      a1 += 2 * Math.PI;
+    }
+    var th = (a1 - a0) / 4;
+    var x0 = Math.cos(th / 2),
+        y0 = -Math.sin(th / 2);
+    var x1 = (4 - x0) / 3,
+        y1 = y0 == 0 ? y0 : (1 - x0) * (3 - x0) / (3 * y0);
+    var x2 = x1,
+        y2 = -y1;
+    var x3 = x0,
+        y3 = -y0;
+    var p0 = [x0, y0],
+        p1 = [x1, y1],
+        p2 = [x2, y2],
+        p3 = [x3, y3];
+    var pth = {
+      cmds: [gst.pth.cmds.length == 0 ? "M" : "L", "C", "C", "C", "C"],
+      crds: [x0, y0, x1, y1, x2, y2, x3, y3]
+    };
+    var rot = [1, 0, 0, 1, 0, 0];
+    exports.UDOC.M.rotate(rot, -th);
+
+    for (var i = 0; i < 3; i++) {
+      p1 = exports.UDOC.M.multPoint(rot, p1);
+      p2 = exports.UDOC.M.multPoint(rot, p2);
+      p3 = exports.UDOC.M.multPoint(rot, p3);
+      pth.crds.push(p1[0], p1[1], p2[0], p2[1], p3[0], p3[1]);
+    }
+
+    var sc = [r, 0, 0, r, x, y];
+    exports.UDOC.M.rotate(rot, -a0 + th / 2);
+    exports.UDOC.M.concat(rot, sc);
+    exports.UDOC.M.multArray(rot, pth.crds);
+    exports.UDOC.M.multArray(gst.ctm, pth.crds);
+    exports.UDOC.G.concat(gst.pth, pth);
+    var y = pth.crds.pop();
+    x = pth.crds.pop();
+    gst.cpos = [x, y];
+  },
+  toPoly: function toPoly(p) {
+    if (p.cmds[0] != "M" || p.cmds[p.cmds.length - 1] != "Z") return null;
+
+    for (var i = 1; i < p.cmds.length - 1; i++) {
+      if (p.cmds[i] != "L") return null;
+    }
+
+    var out = [],
+        cl = p.crds.length;
+    if (p.crds[0] == p.crds[cl - 2] && p.crds[1] == p.crds[cl - 1]) cl -= 2;
+
+    for (var i = 0; i < cl; i += 2) {
+      out.push([p.crds[i], p.crds[i + 1]]);
+    }
+
+    if (exports.UDOC.G.polyArea(p.crds) < 0) out.reverse();
+    return out;
+  },
+  fromPoly: function fromPoly(p) {
+    var o = {
+      cmds: [],
+      crds: []
+    };
+
+    for (var i = 0; i < p.length; i++) {
+      o.crds.push(p[i][0], p[i][1]);
+      o.cmds.push(i == 0 ? "M" : "L");
+    }
+
+    o.cmds.push("Z");
+    return o;
+  },
+  polyArea: function polyArea(p) {
+    if (p.length < 6) return 0;
+    var l = p.length - 2;
+    var sum = (p[0] - p[l]) * (p[l + 1] + p[1]);
+
+    for (var i = 0; i < l; i += 2) {
+      sum += (p[i + 2] - p[i]) * (p[i + 1] + p[i + 3]);
+    }
+
+    return -sum * 0.5;
+  },
+  polyClip: function polyClip(p0, p1) {
+    var cp1, cp2, s, e;
+
+    var inside = function inside(p) {
+      return (cp2[0] - cp1[0]) * (p[1] - cp1[1]) > (cp2[1] - cp1[1]) * (p[0] - cp1[0]);
+    };
+
+    var isc = function isc() {
+      var dc = [cp1[0] - cp2[0], cp1[1] - cp2[1]],
+          dp = [s[0] - e[0], s[1] - e[1]],
+          n1 = cp1[0] * cp2[1] - cp1[1] * cp2[0],
+          n2 = s[0] * e[1] - s[1] * e[0],
+          n3 = 1.0 / (dc[0] * dp[1] - dc[1] * dp[0]);
+      return [(n1 * dp[0] - n2 * dc[0]) * n3, (n1 * dp[1] - n2 * dc[1]) * n3];
+    };
+
+    var out = p0;
+    cp1 = p1[p1.length - 1];
+
+    for (var j in p1) {
+      var cp2 = p1[j];
+      var inp = out;
+      out = [];
+      s = inp[inp.length - 1]; //last on the input list
+
+      for (var i in inp) {
+        var e = inp[i];
+
+        if (inside(e)) {
+          if (!inside(s)) {
+            out.push(isc());
+          }
+
+          out.push(e);
+        } else if (inside(s)) {
+          out.push(isc());
+        }
+
+        s = e;
+      }
+
+      cp1 = cp2;
+    }
+
+    return out;
+  }
+};
+exports.UDOC.M = {
+  getScale: function getScale(m) {
+    return Math.sqrt(Math.abs(m[0] * m[3] - m[1] * m[2]));
+  },
+  translate: function translate(m, x, y) {
+    exports.UDOC.M.concat(m, [1, 0, 0, 1, x, y]);
+  },
+  rotate: function rotate(m, a) {
+    exports.UDOC.M.concat(m, [Math.cos(a), -Math.sin(a), Math.sin(a), Math.cos(a), 0, 0]);
+  },
+  scale: function scale(m, x, y) {
+    exports.UDOC.M.concat(m, [x, 0, 0, y, 0, 0]);
+  },
+  concat: function concat(m, w) {
+    var a = m[0],
+        b = m[1],
+        c = m[2],
+        d = m[3],
+        tx = m[4],
+        ty = m[5];
+    m[0] = a * w[0] + b * w[2];
+    m[1] = a * w[1] + b * w[3];
+    m[2] = c * w[0] + d * w[2];
+    m[3] = c * w[1] + d * w[3];
+    m[4] = tx * w[0] + ty * w[2] + w[4];
+    m[5] = tx * w[1] + ty * w[3] + w[5];
+  },
+  invert: function invert(m) {
+    var a = m[0],
+        b = m[1],
+        c = m[2],
+        d = m[3],
+        tx = m[4],
+        ty = m[5],
+        adbc = a * d - b * c;
+    m[0] = d / adbc;
+    m[1] = -b / adbc;
+    m[2] = -c / adbc;
+    m[3] = a / adbc;
+    m[4] = (c * ty - d * tx) / adbc;
+    m[5] = (b * tx - a * ty) / adbc;
+  },
+  multPoint: function multPoint(m, p) {
+    var x = p[0],
+        y = p[1];
+    return [x * m[0] + y * m[2] + m[4], x * m[1] + y * m[3] + m[5]];
+  },
+  multArray: function multArray(m, a) {
+    for (var i = 0; i < a.length; i += 2) {
+      var x = a[i],
+          y = a[i + 1];
+      a[i] = x * m[0] + y * m[2] + m[4];
+      a[i + 1] = x * m[1] + y * m[3] + m[5];
+    }
+  }
+};
+exports.UDOC.C = {
+  srgbGamma: function srgbGamma(x) {
+    return x < 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1.0 / 2.4) - 0.055;
+  },
+  cmykToRgb: function cmykToRgb(clr) {
+    var c = clr[0],
+        m = clr[1],
+        y = clr[2],
+        k = clr[3]; // return [1-Math.min(1,c+k), 1-Math.min(1, m+k), 1-Math.min(1,y+k)];
+
+    var r = 255 + c * (-4.387332384609988 * c + 54.48615194189176 * m + 18.82290502165302 * y + 212.25662451639585 * k + -285.2331026137004) + m * (1.7149763477362134 * m - 5.6096736904047315 * y + -17.873870861415444 * k - 5.497006427196366) + y * (-2.5217340131683033 * y - 21.248923337353073 * k + 17.5119270841813) + k * (-21.86122147463605 * k - 189.48180835922747);
+    var g = 255 + c * (8.841041422036149 * c + 60.118027045597366 * m + 6.871425592049007 * y + 31.159100130055922 * k + -79.2970844816548) + m * (-15.310361306967817 * m + 17.575251261109482 * y + 131.35250912493976 * k - 190.9453302588951) + y * (4.444339102852739 * y + 9.8632861493405 * k - 24.86741582555878) + k * (-20.737325471181034 * k - 187.80453709719578);
+    var b = 255 + c * (0.8842522430003296 * c + 8.078677503112928 * m + 30.89978309703729 * y - 0.23883238689178934 * k + -14.183576799673286) + m * (10.49593273432072 * m + 63.02378494754052 * y + 50.606957656360734 * k - 112.23884253719248) + y * (0.03296041114873217 * y + 115.60384449646641 * k + -193.58209356861505) + k * (-22.33816807309886 * k - 180.12613974708367);
+    return [Math.max(0, Math.min(1, r / 255)), Math.max(0, Math.min(1, g / 255)), Math.max(0, Math.min(1, b / 255))]; //var iK = 1-c[3];  
+    //return [(1-c[0])*iK, (1-c[1])*iK, (1-c[2])*iK];  
+  },
+  labToRgb: function labToRgb(lab) {
+    var k = 903.3,
+        e = 0.008856,
+        L = lab[0],
+        a = lab[1],
+        b = lab[2];
+    var fy = (L + 16) / 116,
+        fy3 = fy * fy * fy;
+    var fz = fy - b / 200,
+        fz3 = fz * fz * fz;
+    var fx = a / 500 + fy,
+        fx3 = fx * fx * fx;
+    var zr = fz3 > e ? fz3 : (116 * fz - 16) / k;
+    var yr = fy3 > e ? fy3 : (116 * fy - 16) / k;
+    var xr = fx3 > e ? fx3 : (116 * fx - 16) / k;
+    var X = xr * 96.72,
+        Y = yr * 100,
+        Z = zr * 81.427,
+        xyz = [X / 100, Y / 100, Z / 100];
+    var x2s = [3.1338561, -1.6168667, -0.4906146, -0.9787684, 1.9161415, 0.0334540, 0.0719453, -0.2289914, 1.4052427];
+    var rgb = [x2s[0] * xyz[0] + x2s[1] * xyz[1] + x2s[2] * xyz[2], x2s[3] * xyz[0] + x2s[4] * xyz[1] + x2s[5] * xyz[2], x2s[6] * xyz[0] + x2s[7] * xyz[1] + x2s[8] * xyz[2]];
+
+    for (var i = 0; i < 3; i++) {
+      rgb[i] = Math.max(0, Math.min(1, exports.UDOC.C.srgbGamma(rgb[i])));
+    }
+
+    return rgb;
+  }
+};
+
+exports.UDOC.getState = function (crds) {
+  return {
+    font: exports.UDOC.getFont(),
+    dd: {
+      flat: 1
+    },
+    space: "/DeviceGray",
+    // fill
+    ca: 1,
+    colr: [0, 0, 0],
+    sspace: "/DeviceGray",
+    // stroke
+    CA: 1,
+    COLR: [0, 0, 0],
+    bmode: "/Normal",
+    SA: false,
+    OPM: 0,
+    AIS: false,
+    OP: false,
+    op: false,
+    SMask: "/None",
+    lwidth: 1,
+    lcap: 0,
+    ljoin: 0,
+    mlimit: 10,
+    SM: 0.1,
+    doff: 0,
+    dash: [],
+    ctm: [1, 0, 0, 1, 0, 0],
+    cpos: [0, 0],
+    pth: {
+      cmds: [],
+      crds: []
+    },
+    cpth: crds ? exports.UDOC.G.rectToPath(crds) : null // clipping path
+
+  };
+};
+
+exports.UDOC.getFont = function () {
+  return {
+    Tc: 0,
+    Tw: 0,
+    Th: 100,
+    Tl: 0,
+    Tf: "Helvetica-Bold",
+    Tfs: 1,
+    Tmode: 0,
+    Trise: 0,
+    Tk: 0,
+    Tal: 0,
+    Tun: 0,
+    Tm: [1, 0, 0, 1, 0, 0],
+    Tlm: [1, 0, 0, 1, 0, 0],
+    Trm: [1, 0, 0, 1, 0, 0]
+  };
+};
+
+exports.FromEMF = function () {};
+
+exports.FromEMF.Parse = function (buff, genv) {
+  buff = new Uint8Array(buff);
+  var off = 0; //console.log(buff.slice(0,32));
+
+  var prms = {
+    fill: false,
+    strk: false,
+    bb: [0, 0, 1, 1],
+    wbb: [0, 0, 1, 1],
+    fnt: {
+      nam: "Arial",
+      hgh: 25,
+      und: false,
+      orn: 0
+    },
+    tclr: [0, 0, 0],
+    talg: 0
+  },
+      gst,
+      tab = [],
+      sts = [];
+  var rI = exports.FromEMF.B.readShort,
+      rU = exports.FromEMF.B.readUshort,
+      rI32 = exports.FromEMF.B.readInt,
+      rU32 = exports.FromEMF.B.readUint,
+      rF32 = exports.FromEMF.B.readFloat;
+  var opn = 0;
+
+  while (true) {
+    var fnc = rU32(buff, off);
+    off += 4;
+    var fnm = exports.FromEMF.K[fnc];
+    var siz = rU32(buff, off);
+    off += 4; //if(gst && isNaN(gst.ctm[0])) throw "e";
+    //console.log(fnc,fnm,siz);
+
+    var loff = off; //if(opn++==253) break;
+
+    var obj = null,
+        oid = 0; //console.log(fnm, siz);
+
+    if (false) {} else if (fnm == "EOF") {
+      break;
+    } else if (fnm == "HEADER") {
+      prms.bb = exports.FromEMF._readBox(buff, loff);
+      loff += 16; //console.log(fnm, prms.bb);
+
+      genv.StartPage(prms.bb[0], prms.bb[1], prms.bb[2], prms.bb[3]);
+      gst = exports.UDOC.getState(prms.bb);
+    } else if (fnm == "SAVEDC") sts.push(JSON.stringify(gst), JSON.stringify(prms));else if (fnm == "RESTOREDC") {
+      var dif = rI32(buff, loff);
+      loff += 4;
+
+      while (dif < -1) {
+        sts.pop();
+        sts.pop();
+      }
+
+      prms = JSON.parse(sts.pop());
+      gst = JSON.parse(sts.pop());
+    } else if (fnm == "SELECTCLIPPATH") {
+      gst.cpth = JSON.parse(JSON.stringify(gst.pth));
+    } else if (["SETMAPMODE", "SETPOLYFILLMODE", "SETBKMODE"
+    /*,"SETVIEWPORTEXTEX"*/
+    , "SETICMMODE", "SETROP2", "EXTSELECTCLIPRGN"].indexOf(fnm) != -1) {} //else if(fnm=="INTERSECTCLIPRECT") {  var r=prms.crct=FromEMF._readBox(buff, loff);  /*var y0=r[1],y1=r[3]; if(y0>y1){r[1]=y1; r[3]=y0;}*/ console.log(prms.crct);  }
+    else if (fnm == "SETMITERLIMIT") gst.mlimit = rU32(buff, loff);else if (fnm == "SETTEXTCOLOR") prms.tclr = [buff[loff] / 255, buff[loff + 1] / 255, buff[loff + 2] / 255];else if (fnm == "SETTEXTALIGN") prms.talg = rU32(buff, loff);else if (fnm == "SETVIEWPORTEXTEX" || fnm == "SETVIEWPORTORGEX") {
+        if (prms.vbb == null) prms.vbb = [];
+        var coff = fnm == "SETVIEWPORTORGEX" ? 0 : 2;
+        prms.vbb[coff] = rI32(buff, loff);
+        loff += 4;
+        prms.vbb[coff + 1] = rI32(buff, loff);
+        loff += 4; //console.log(prms.vbb);
+
+        if (fnm == "SETVIEWPORTEXTEX") exports.FromEMF._updateCtm(prms, gst);
+      } else if (fnm == "SETWINDOWEXTEX" || fnm == "SETWINDOWORGEX") {
+        var coff = fnm == "SETWINDOWORGEX" ? 0 : 2;
+        prms.wbb[coff] = rI32(buff, loff);
+        loff += 4;
+        prms.wbb[coff + 1] = rI32(buff, loff);
+        loff += 4;
+        if (fnm == "SETWINDOWEXTEX") exports.FromEMF._updateCtm(prms, gst);
+      } //else if(fnm=="SETMETARGN") {}
+      else if (fnm == "COMMENT") {
+          var ds = rU32(buff, loff);
+          loff += 4;
+        } else if (fnm == "SELECTOBJECT") {
+          var ind = rU32(buff, loff);
+          loff += 4; //console.log(ind.toString(16), tab, tab[ind]);
+
+          if (ind == 0x80000000) {
+            prms.fill = true;
+            gst.colr = [1, 1, 1];
+          } // white brush
+          else if (ind == 0x80000005) {
+              prms.fill = false;
+            } // null brush
+            else if (ind == 0x80000007) {
+                prms.strk = true;
+                prms.lwidth = 1;
+                gst.COLR = [0, 0, 0];
+              } // black pen
+              else if (ind == 0x80000008) {
+                  prms.strk = false;
+                } // null  pen
+                else if (ind == 0x8000000d) {} // system font
+                  else if (ind == 0x8000000e) {} // device default font
+                    else {
+                        var co = tab[ind]; //console.log(ind, co);
+
+                        if (co.t == "b") {
+                          prms.fill = co.stl != 1;
+
+                          if (co.stl == 0) {} else if (co.stl == 1) {} else throw co.stl + " e";
+
+                          gst.colr = co.clr;
+                        } else if (co.t == "p") {
+                          prms.strk = co.stl != 5;
+                          gst.lwidth = co.wid;
+                          gst.COLR = co.clr;
+                        } else if (co.t == "f") {
+                          prms.fnt = co;
+                          gst.font.Tf = co.nam;
+                          gst.font.Tfs = Math.abs(co.hgh);
+                          gst.font.Tun = co.und;
+                        } else throw "e";
+                      }
+        } else if (fnm == "DELETEOBJECT") {
+          var ind = rU32(buff, loff);
+          loff += 4;
+          if (tab[ind] != null) tab[ind] = null;else throw "e";
+        } else if (fnm == "CREATEBRUSHINDIRECT") {
+          oid = rU32(buff, loff);
+          loff += 4;
+          obj = {
+            t: "b"
+          };
+          obj.stl = rU32(buff, loff);
+          loff += 4;
+          obj.clr = [buff[loff] / 255, buff[loff + 1] / 255, buff[loff + 2] / 255];
+          loff += 4;
+          obj.htc = rU32(buff, loff);
+          loff += 4; //console.log(oid, obj);
+        } else if (fnm == "CREATEPEN" || fnm == "EXTCREATEPEN") {
+          oid = rU32(buff, loff);
+          loff += 4;
+          obj = {
+            t: "p"
+          };
+
+          if (fnm == "EXTCREATEPEN") {
+            loff += 16;
+            obj.stl = rU32(buff, loff);
+            loff += 4;
+            obj.wid = rU32(buff, loff);
+            loff += 4; //obj.stl = rU32(buff, loff);  
+
+            loff += 4;
+          } else {
+            obj.stl = rU32(buff, loff);
+            loff += 4;
+            obj.wid = rU32(buff, loff);
+            loff += 4;
+            loff += 4;
+          }
+
+          obj.clr = [buff[loff] / 255, buff[loff + 1] / 255, buff[loff + 2] / 255];
+          loff += 4;
+        } else if (fnm == "EXTCREATEFONTINDIRECTW") {
+          oid = rU32(buff, loff);
+          loff += 4;
+          obj = {
+            t: "f",
+            nam: ""
+          };
+          obj.hgh = rI32(buff, loff);
+          loff += 4;
+          loff += 4 * 2;
+          obj.orn = rI32(buff, loff) / 10;
+          loff += 4;
+          var wgh = rU32(buff, loff);
+          loff += 4; //console.log(fnm, obj.orn, wgh);
+          //console.log(rU32(buff,loff), rU32(buff,loff+4), buff.slice(loff,loff+8));
+
+          obj.und = buff[loff + 1];
+          obj.stk = buff[loff + 2];
+          loff += 4 * 2;
+
+          while (rU(buff, loff) != 0) {
+            obj.nam += String.fromCharCode(rU(buff, loff));
+            loff += 2;
+          }
+
+          if (wgh > 500) obj.nam += "-Bold"; //console.log(wgh, obj.nam);
+        } else if (fnm == "EXTTEXTOUTW") {
+          //console.log(buff.slice(loff-8, loff-8+siz));
+          loff += 16;
+          var mod = rU32(buff, loff);
+          loff += 4; //console.log(mod);
+
+          var scx = rF32(buff, loff);
+          loff += 4;
+          var scy = rF32(buff, loff);
+          loff += 4;
+          var rfx = rI32(buff, loff);
+          loff += 4;
+          var rfy = rI32(buff, loff);
+          loff += 4; //console.log(mod, scx, scy,rfx,rfy);
+
+          gst.font.Tm = [1, 0, 0, -1, 0, 0];
+          exports.UDOC.M.rotate(gst.font.Tm, prms.fnt.orn * Math.PI / 180);
+          exports.UDOC.M.translate(gst.font.Tm, rfx, rfy);
+          var alg = prms.talg; //console.log(alg.toString(2));
+
+          if ((alg & 6) == 6) gst.font.Tal = 2;else if ((alg & 7) == 0) gst.font.Tal = 0;else throw alg + " e";
+
+          if ((alg & 24) == 24) {} // baseline
+          else if ((alg & 24) == 0) exports.UDOC.M.translate(gst.font.Tm, 0, gst.font.Tfs);else throw "e";
+
+          var crs = rU32(buff, loff);
+          loff += 4;
+          var ofs = rU32(buff, loff);
+          loff += 4;
+          var ops = rU32(buff, loff);
+          loff += 4; //if(ops!=0) throw "e";
+          //console.log(ofs,ops,crs);
+
+          loff += 16;
+          var ofD = rU32(buff, loff);
+          loff += 4; //console.log(ops, ofD, loff, ofs+off-8);
+
+          ofs += off - 8; //console.log(crs, ops);
+
+          var str = "";
+
+          for (var i = 0; i < crs; i++) {
+            var cc = rU(buff, ofs + i * 2);
+            str += String.fromCharCode(cc);
+          }
+
+          ;
+          var oclr = gst.colr;
+          gst.colr = prms.tclr; //console.log(str, gst.colr, gst.font.Tm);
+          //var otfs = gst.font.Tfs;  gst.font.Tfs *= 1/gst.ctm[0];
+
+          genv.PutText(gst, str, str.length * gst.font.Tfs * 0.5);
+          gst.colr = oclr; //gst.font.Tfs = otfs;
+          //console.log(rfx, rfy, scx, ops, rcX, rcY, rcW, rcH, offDx, str);
+        } else if (fnm == "BEGINPATH") {
+          exports.UDOC.G.newPath(gst);
+        } else if (fnm == "ENDPATH") {} else if (fnm == "CLOSEFIGURE") exports.UDOC.G.closePath(gst);else if (fnm == "MOVETOEX") {
+          exports.UDOC.G.moveTo(gst, rI32(buff, loff), rI32(buff, loff + 4));
+        } else if (fnm == "LINETO") {
+          if (gst.pth.cmds.length == 0) {
+            var im = gst.ctm.slice(0);
+            exports.UDOC.M.invert(im);
+            var p = exports.UDOC.M.multPoint(im, gst.cpos);
+            exports.UDOC.G.moveTo(gst, p[0], p[1]);
+          }
+
+          exports.UDOC.G.lineTo(gst, rI32(buff, loff), rI32(buff, loff + 4));
+        } else if (fnm == "POLYGON" || fnm == "POLYGON16" || fnm == "POLYLINE" || fnm == "POLYLINE16" || fnm == "POLYLINETO" || fnm == "POLYLINETO16") {
+          loff += 16;
+          var ndf = fnm.startsWith("POLYGON"),
+              isTo = fnm.indexOf("TO") != -1;
+          var cnt = rU32(buff, loff);
+          loff += 4;
+          if (!isTo) exports.UDOC.G.newPath(gst);
+          loff = exports.FromEMF._drawPoly(buff, loff, cnt, gst, fnm.endsWith("16") ? 2 : 4, ndf, isTo);
+          if (!isTo) exports.FromEMF._draw(genv, gst, prms, ndf); //console.log(prms, gst.lwidth);
+          //console.log(JSON.parse(JSON.stringify(gst.pth)));
+        } else if (fnm == "POLYPOLYGON16") {
+          loff += 16;
+          var ndf = fnm.startsWith("POLYPOLYGON"),
+              isTo = fnm.indexOf("TO") != -1;
+          var nop = rU32(buff, loff);
+          loff += 4;
+          loff += 4;
+          var pi = loff;
+          loff += nop * 4;
+          if (!isTo) exports.UDOC.G.newPath(gst);
+
+          for (var i = 0; i < nop; i++) {
+            var ppp = rU(buff, pi + i * 4);
+            loff = exports.FromEMF._drawPoly(buff, loff, ppp, gst, fnm.endsWith("16") ? 2 : 4, ndf, isTo);
+          }
+
+          if (!isTo) exports.FromEMF._draw(genv, gst, prms, ndf);
+        } else if (fnm == "POLYBEZIER" || fnm == "POLYBEZIER16" || fnm == "POLYBEZIERTO" || fnm == "POLYBEZIERTO16") {
+          loff += 16;
+          var is16 = fnm.endsWith("16"),
+              rC = is16 ? rI : rI32,
+              nl = is16 ? 2 : 4;
+          var cnt = rU32(buff, loff);
+          loff += 4;
+
+          if (fnm.indexOf("TO") == -1) {
+            exports.UDOC.G.moveTo(gst, rC(buff, loff), rC(buff, loff + nl));
+            loff += 2 * nl;
+            cnt--;
+          }
+
+          while (cnt > 0) {
+            exports.UDOC.G.curveTo(gst, rC(buff, loff), rC(buff, loff + nl), rC(buff, loff + 2 * nl), rC(buff, loff + 3 * nl), rC(buff, loff + 4 * nl), rC(buff, loff + 5 * nl));
+            loff += 6 * nl;
+            cnt -= 3;
+          } //console.log(JSON.parse(JSON.stringify(gst.pth)));
+
+        } else if (fnm == "RECTANGLE" || fnm == "ELLIPSE") {
+          exports.UDOC.G.newPath(gst);
+
+          var bx = exports.FromEMF._readBox(buff, loff);
+
+          if (fnm == "RECTANGLE") {
+            exports.UDOC.G.moveTo(gst, bx[0], bx[1]);
+            exports.UDOC.G.lineTo(gst, bx[2], bx[1]);
+            exports.UDOC.G.lineTo(gst, bx[2], bx[3]);
+            exports.UDOC.G.lineTo(gst, bx[0], bx[3]);
+          } else {
+            var x = (bx[0] + bx[2]) / 2,
+                y = (bx[1] + bx[3]) / 2;
+            exports.UDOC.G.arc(gst, x, y, (bx[2] - bx[0]) / 2, 0, 2 * Math.PI, false);
+          }
+
+          exports.UDOC.G.closePath(gst);
+
+          exports.FromEMF._draw(genv, gst, prms, true); //console.log(prms, gst.lwidth);
+
+        } else if (fnm == "FILLPATH") genv.Fill(gst, false);else if (fnm == "STROKEPATH") genv.Stroke(gst);else if (fnm == "STROKEANDFILLPATH") {
+          genv.Fill(gst, false);
+          genv.Stroke(gst);
+        } else if (fnm == "SETWORLDTRANSFORM" || fnm == "MODIFYWORLDTRANSFORM") {
+          var mat = [];
+
+          for (var i = 0; i < 6; i++) {
+            mat.push(rF32(buff, loff + i * 4));
+          }
+
+          loff += 24; //console.log(fnm, gst.ctm.slice(0), mat);
+
+          if (fnm == "SETWORLDTRANSFORM") gst.ctm = mat;else {
+            var mod = rU32(buff, loff);
+            loff += 4;
+
+            if (mod == 2) {
+              var om = gst.ctm;
+              gst.ctm = mat;
+              exports.UDOC.M.concat(gst.ctm, om);
+            } else throw "e";
+          }
+        } else if (fnm == "SETSTRETCHBLTMODE") {
+          var sm = rU32(buff, loff);
+          loff += 4;
+        } else if (fnm == "STRETCHDIBITS") {
+          var bx = exports.FromEMF._readBox(buff, loff);
+
+          loff += 16;
+          var xD = rI32(buff, loff);
+          loff += 4;
+          var yD = rI32(buff, loff);
+          loff += 4;
+          var xS = rI32(buff, loff);
+          loff += 4;
+          var yS = rI32(buff, loff);
+          loff += 4;
+          var wS = rI32(buff, loff);
+          loff += 4;
+          var hS = rI32(buff, loff);
+          loff += 4;
+          var ofH = rU32(buff, loff) + off - 8;
+          loff += 4;
+          var szH = rU32(buff, loff);
+          loff += 4;
+          var ofB = rU32(buff, loff) + off - 8;
+          loff += 4;
+          var szB = rU32(buff, loff);
+          loff += 4;
+          var usg = rU32(buff, loff);
+          loff += 4;
+          if (usg != 0) throw "e";
+          var bop = rU32(buff, loff);
+          loff += 4;
+          var wD = rI32(buff, loff);
+          loff += 4;
+          var hD = rI32(buff, loff);
+          loff += 4; //console.log(bop, wD, hD);
+          //console.log(ofH, szH, ofB, szB, ofH+40);
+          //console.log(bx, xD,yD,wD,hD);
+          //console.log(xS,yS,wS,hS);
+          //console.log(ofH,szH,ofB,szB,usg,bop);
+
+          var hl = rU32(buff, ofH);
+          ofH += 4;
+          var w = rU32(buff, ofH);
+          ofH += 4;
+          var h = rU32(buff, ofH);
+          ofH += 4;
+          if (w != wS || h != hS) throw "e";
+          var ps = rU(buff, ofH);
+          ofH += 2;
+          var bc = rU(buff, ofH);
+          ofH += 2;
+          if (bc != 8 && bc != 24 && bc != 32) throw bc + " e";
+          var cpr = rU32(buff, ofH);
+          ofH += 4;
+          if (cpr != 0) throw cpr + " e";
+          var sz = rU32(buff, ofH);
+          ofH += 4;
+          var xpm = rU32(buff, ofH);
+          ofH += 4;
+          var ypm = rU32(buff, ofH);
+          ofH += 4;
+          var cu = rU32(buff, ofH);
+          ofH += 4;
+          var ci = rU32(buff, ofH);
+          ofH += 4; //console.log(hl, w, h, ps, bc, cpr, sz, xpm, ypm, cu, ci);
+          //console.log(hl,w,h,",",xS,yS,wS,hS,",",xD,yD,wD,hD,",",xpm,ypm);
+
+          var rl = Math.floor((w * ps * bc + 31 & ~31) / 8);
+          var img = new Uint8Array(w * h * 4);
+
+          if (bc == 8) {
+            for (var y = 0; y < h; y++) {
+              for (var x = 0; x < w; x++) {
+                var qi = y * w + x << 2,
+                    ind = buff[ofB + (h - 1 - y) * rl + x] << 2;
+                img[qi] = buff[ofH + ind + 2];
+                img[qi + 1] = buff[ofH + ind + 1];
+                img[qi + 2] = buff[ofH + ind + 0];
+                img[qi + 3] = 255;
+              }
+            }
+          }
+
+          if (bc == 24) {
+            for (var y = 0; y < h; y++) {
+              for (var x = 0; x < w; x++) {
+                var qi = y * w + x << 2,
+                    ti = ofB + (h - 1 - y) * rl + x * 3;
+                img[qi] = buff[ti + 2];
+                img[qi + 1] = buff[ti + 1];
+                img[qi + 2] = buff[ti + 0];
+                img[qi + 3] = 255;
+              }
+            }
+          }
+
+          if (bc == 32) {
+            for (var y = 0; y < h; y++) {
+              for (var x = 0; x < w; x++) {
+                var qi = y * w + x << 2,
+                    ti = ofB + (h - 1 - y) * rl + x * 4;
+                img[qi] = buff[ti + 2];
+                img[qi + 1] = buff[ti + 1];
+                img[qi + 2] = buff[ti + 0];
+                img[qi + 3] = buff[ti + 3];
+              }
+            }
+          }
+
+          var ctm = gst.ctm.slice(0);
+          gst.ctm = [1, 0, 0, 1, 0, 0];
+          exports.UDOC.M.scale(gst.ctm, wD, -hD);
+          exports.UDOC.M.translate(gst.ctm, xD, yD + hD);
+          exports.UDOC.M.concat(gst.ctm, ctm);
+          genv.PutImage(gst, img, w, h);
+          gst.ctm = ctm;
+        } else {
+          console.log(fnm, siz);
+        }
+
+    if (obj != null) tab[oid] = obj;
+    off += siz - 8;
+  } //genv.Stroke(gst);
+
+
+  genv.ShowPage();
+  genv.Done();
+};
+
+exports.FromEMF._readBox = function (buff, off) {
+  var b = [];
+
+  for (var i = 0; i < 4; i++) {
+    b[i] = exports.FromEMF.B.readInt(buff, off + i * 4);
+  }
+
+  return b;
+};
+
+exports.FromEMF._updateCtm = function (prms, gst) {
+  var mat = [1, 0, 0, 1, 0, 0];
+  var wbb = prms.wbb,
+      bb = prms.bb,
+      vbb = prms.vbb && prms.vbb.length == 4 ? prms.vbb : prms.bb; //var y0 = bb[1], y1 = bb[3];  bb[1]=Math.min(y0,y1);  bb[3]=Math.max(y0,y1);
+
+  exports.UDOC.M.translate(mat, -wbb[0], -wbb[1]);
+  exports.UDOC.M.scale(mat, 1 / wbb[2], 1 / wbb[3]);
+  exports.UDOC.M.scale(mat, vbb[2], vbb[3]); //UDOC.M.scale(mat, vbb[2]/(bb[2]-bb[0]), vbb[3]/(bb[3]-bb[1]));
+  //UDOC.M.scale(mat, bb[2]-bb[0],bb[3]-bb[1]);
+
+  gst.ctm = mat;
+};
+
+exports.FromEMF._draw = function (genv, gst, prms, needFill) {
+  if (prms.fill && needFill) genv.Fill(gst, false);
+  if (prms.strk && gst.lwidth != 0) genv.Stroke(gst);
+};
+
+exports.FromEMF._drawPoly = function (buff, off, ppp, gst, nl, clos, justLine) {
+  var rS = nl == 2 ? exports.FromEMF.B.readShort : exports.FromEMF.B.readInt;
+
+  for (var j = 0; j < ppp; j++) {
+    var px = rS(buff, off);
+    off += nl;
+    var py = rS(buff, off);
+    off += nl;
+    if (j == 0 && !justLine) exports.UDOC.G.moveTo(gst, px, py);else exports.UDOC.G.lineTo(gst, px, py);
+  }
+
+  if (clos) exports.UDOC.G.closePath(gst);
+  return off;
+};
+
+exports.FromEMF.B = {
+  uint8: new Uint8Array(4),
+  readShort: function readShort(buff, p) {
+    var u8 = exports.FromEMF.B.uint8;
+    u8[0] = buff[p];
+    u8[1] = buff[p + 1];
+    return exports.FromEMF.B.int16[0];
+  },
+  readUshort: function readUshort(buff, p) {
+    var u8 = exports.FromEMF.B.uint8;
+    u8[0] = buff[p];
+    u8[1] = buff[p + 1];
+    return exports.FromEMF.B.uint16[0];
+  },
+  readInt: function readInt(buff, p) {
+    var u8 = exports.FromEMF.B.uint8;
+    u8[0] = buff[p];
+    u8[1] = buff[p + 1];
+    u8[2] = buff[p + 2];
+    u8[3] = buff[p + 3];
+    return exports.FromEMF.B.int32[0];
+  },
+  readUint: function readUint(buff, p) {
+    var u8 = exports.FromEMF.B.uint8;
+    u8[0] = buff[p];
+    u8[1] = buff[p + 1];
+    u8[2] = buff[p + 2];
+    u8[3] = buff[p + 3];
+    return exports.FromEMF.B.uint32[0];
+  },
+  readFloat: function readFloat(buff, p) {
+    var u8 = exports.FromEMF.B.uint8;
+    u8[0] = buff[p];
+    u8[1] = buff[p + 1];
+    u8[2] = buff[p + 2];
+    u8[3] = buff[p + 3];
+    return exports.FromEMF.B.flot32[0];
+  },
+  readASCII: function readASCII(buff, p, l) {
+    var s = "";
+
+    for (var i = 0; i < l; i++) {
+      s += String.fromCharCode(buff[p + i]);
+    }
+
+    return s;
+  }
+};
+exports.FromEMF.B.int16 = new Int16Array(exports.FromEMF.B.uint8.buffer);
+exports.FromEMF.B.uint16 = new Uint16Array(exports.FromEMF.B.uint8.buffer);
+exports.FromEMF.B.int32 = new Int32Array(exports.FromEMF.B.uint8.buffer);
+exports.FromEMF.B.uint32 = new Uint32Array(exports.FromEMF.B.uint8.buffer);
+exports.FromEMF.B.flot32 = new Float32Array(exports.FromEMF.B.uint8.buffer);
+exports.FromEMF.C = {
+  EMR_HEADER: 0x00000001,
+  EMR_POLYBEZIER: 0x00000002,
+  EMR_POLYGON: 0x00000003,
+  EMR_POLYLINE: 0x00000004,
+  EMR_POLYBEZIERTO: 0x00000005,
+  EMR_POLYLINETO: 0x00000006,
+  EMR_POLYPOLYLINE: 0x00000007,
+  EMR_POLYPOLYGON: 0x00000008,
+  EMR_SETWINDOWEXTEX: 0x00000009,
+  EMR_SETWINDOWORGEX: 0x0000000A,
+  EMR_SETVIEWPORTEXTEX: 0x0000000B,
+  EMR_SETVIEWPORTORGEX: 0x0000000C,
+  EMR_SETBRUSHORGEX: 0x0000000D,
+  EMR_EOF: 0x0000000E,
+  EMR_SETPIXELV: 0x0000000F,
+  EMR_SETMAPPERFLAGS: 0x00000010,
+  EMR_SETMAPMODE: 0x00000011,
+  EMR_SETBKMODE: 0x00000012,
+  EMR_SETPOLYFILLMODE: 0x00000013,
+  EMR_SETROP2: 0x00000014,
+  EMR_SETSTRETCHBLTMODE: 0x00000015,
+  EMR_SETTEXTALIGN: 0x00000016,
+  EMR_SETCOLORADJUSTMENT: 0x00000017,
+  EMR_SETTEXTCOLOR: 0x00000018,
+  EMR_SETBKCOLOR: 0x00000019,
+  EMR_OFFSETCLIPRGN: 0x0000001A,
+  EMR_MOVETOEX: 0x0000001B,
+  EMR_SETMETARGN: 0x0000001C,
+  EMR_EXCLUDECLIPRECT: 0x0000001D,
+  EMR_INTERSECTCLIPRECT: 0x0000001E,
+  EMR_SCALEVIEWPORTEXTEX: 0x0000001F,
+  EMR_SCALEWINDOWEXTEX: 0x00000020,
+  EMR_SAVEDC: 0x00000021,
+  EMR_RESTOREDC: 0x00000022,
+  EMR_SETWORLDTRANSFORM: 0x00000023,
+  EMR_MODIFYWORLDTRANSFORM: 0x00000024,
+  EMR_SELECTOBJECT: 0x00000025,
+  EMR_CREATEPEN: 0x00000026,
+  EMR_CREATEBRUSHINDIRECT: 0x00000027,
+  EMR_DELETEOBJECT: 0x00000028,
+  EMR_ANGLEARC: 0x00000029,
+  EMR_ELLIPSE: 0x0000002A,
+  EMR_RECTANGLE: 0x0000002B,
+  EMR_ROUNDRECT: 0x0000002C,
+  EMR_ARC: 0x0000002D,
+  EMR_CHORD: 0x0000002E,
+  EMR_PIE: 0x0000002F,
+  EMR_SELECTPALETTE: 0x00000030,
+  EMR_CREATEPALETTE: 0x00000031,
+  EMR_SETPALETTEENTRIES: 0x00000032,
+  EMR_RESIZEPALETTE: 0x00000033,
+  EMR_REALIZEPALETTE: 0x00000034,
+  EMR_EXTFLOODFILL: 0x00000035,
+  EMR_LINETO: 0x00000036,
+  EMR_ARCTO: 0x00000037,
+  EMR_POLYDRAW: 0x00000038,
+  EMR_SETARCDIRECTION: 0x00000039,
+  EMR_SETMITERLIMIT: 0x0000003A,
+  EMR_BEGINPATH: 0x0000003B,
+  EMR_ENDPATH: 0x0000003C,
+  EMR_CLOSEFIGURE: 0x0000003D,
+  EMR_FILLPATH: 0x0000003E,
+  EMR_STROKEANDFILLPATH: 0x0000003F,
+  EMR_STROKEPATH: 0x00000040,
+  EMR_FLATTENPATH: 0x00000041,
+  EMR_WIDENPATH: 0x00000042,
+  EMR_SELECTCLIPPATH: 0x00000043,
+  EMR_ABORTPATH: 0x00000044,
+  EMR_COMMENT: 0x00000046,
+  EMR_FILLRGN: 0x00000047,
+  EMR_FRAMERGN: 0x00000048,
+  EMR_INVERTRGN: 0x00000049,
+  EMR_PAINTRGN: 0x0000004A,
+  EMR_EXTSELECTCLIPRGN: 0x0000004B,
+  EMR_BITBLT: 0x0000004C,
+  EMR_STRETCHBLT: 0x0000004D,
+  EMR_MASKBLT: 0x0000004E,
+  EMR_PLGBLT: 0x0000004F,
+  EMR_SETDIBITSTODEVICE: 0x00000050,
+  EMR_STRETCHDIBITS: 0x00000051,
+  EMR_EXTCREATEFONTINDIRECTW: 0x00000052,
+  EMR_EXTTEXTOUTA: 0x00000053,
+  EMR_EXTTEXTOUTW: 0x00000054,
+  EMR_POLYBEZIER16: 0x00000055,
+  EMR_POLYGON16: 0x00000056,
+  EMR_POLYLINE16: 0x00000057,
+  EMR_POLYBEZIERTO16: 0x00000058,
+  EMR_POLYLINETO16: 0x00000059,
+  EMR_POLYPOLYLINE16: 0x0000005A,
+  EMR_POLYPOLYGON16: 0x0000005B,
+  EMR_POLYDRAW16: 0x0000005C,
+  EMR_CREATEMONOBRUSH: 0x0000005D,
+  EMR_CREATEDIBPATTERNBRUSHPT: 0x0000005E,
+  EMR_EXTCREATEPEN: 0x0000005F,
+  EMR_POLYTEXTOUTA: 0x00000060,
+  EMR_POLYTEXTOUTW: 0x00000061,
+  EMR_SETICMMODE: 0x00000062,
+  EMR_CREATECOLORSPACE: 0x00000063,
+  EMR_SETCOLORSPACE: 0x00000064,
+  EMR_DELETECOLORSPACE: 0x00000065,
+  EMR_GLSRECORD: 0x00000066,
+  EMR_GLSBOUNDEDRECORD: 0x00000067,
+  EMR_PIXELFORMAT: 0x00000068,
+  EMR_DRAWESCAPE: 0x00000069,
+  EMR_EXTESCAPE: 0x0000006A,
+  EMR_SMALLTEXTOUT: 0x0000006C,
+  EMR_FORCEUFIMAPPING: 0x0000006D,
+  EMR_NAMEDESCAPE: 0x0000006E,
+  EMR_COLORCORRECTPALETTE: 0x0000006F,
+  EMR_SETICMPROFILEA: 0x00000070,
+  EMR_SETICMPROFILEW: 0x00000071,
+  EMR_ALPHABLEND: 0x00000072,
+  EMR_SETLAYOUT: 0x00000073,
+  EMR_TRANSPARENTBLT: 0x00000074,
+  EMR_GRADIENTFILL: 0x00000076,
+  EMR_SETLINKEDUFIS: 0x00000077,
+  EMR_SETTEXTJUSTIFICATION: 0x00000078,
+  EMR_COLORMATCHTOTARGETW: 0x00000079,
+  EMR_CREATECOLORSPACEW: 0x0000007A
+};
+exports.FromEMF.K = []; // (function() {
+//     var inp, out, stt;
+//     inp = FromEMF.C;   out = FromEMF.K;   stt=4;
+//     for(var p in inp) out[inp[p]] = p.slice(stt);
+// }  )();
+
+exports.ToContext2D = function (needPage, scale) {
+  this.canvas = document.createElement("canvas");
+  this.ctx = this.canvas.getContext("2d");
+  this.bb = null;
+  this.currPage = 0;
+  this.needPage = needPage;
+  this.scale = scale;
+};
+
+exports.ToContext2D.prototype.StartPage = function (x, y, w, h) {
+  if (this.currPage != this.needPage) return;
+  this.bb = [x, y, w, h];
+  var scl = this.scale,
+      dpr = window.devicePixelRatio;
+  var cnv = this.canvas,
+      ctx = this.ctx;
+  cnv.width = Math.round(w * scl);
+  cnv.height = Math.round(h * scl);
+  ctx.translate(0, h * scl);
+  ctx.scale(scl, -scl);
+  cnv.setAttribute("style", "border:1px solid; width:" + cnv.width / dpr + "px; height:" + cnv.height / dpr + "px");
+};
+
+exports.ToContext2D.prototype.Fill = function (gst, evenOdd) {
+  if (this.currPage != this.needPage) return;
+  var ctx = this.ctx;
+  ctx.beginPath();
+
+  this._setStyle(gst, ctx);
+
+  this._draw(gst.pth, ctx);
+
+  ctx.fill();
+};
+
+exports.ToContext2D.prototype.Stroke = function (gst) {
+  if (this.currPage != this.needPage) return;
+  var ctx = this.ctx;
+  ctx.beginPath();
+
+  this._setStyle(gst, ctx);
+
+  this._draw(gst.pth, ctx);
+
+  ctx.stroke();
+};
+
+exports.ToContext2D.prototype.PutText = function (gst, str, stw) {
+  if (this.currPage != this.needPage) return;
+
+  var scl = this._scale(gst.ctm);
+
+  var ctx = this.ctx;
+
+  this._setStyle(gst, ctx);
+
+  ctx.save();
+  var m = [1, 0, 0, -1, 0, 0];
+
+  this._concat(m, gst.font.Tm);
+
+  this._concat(m, gst.ctm); //console.log(str, m, gst);  throw "e";
+
+
+  ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);
+  ctx.fillText(str, 0, 0);
+  ctx.restore();
+};
+
+exports.ToContext2D.prototype.PutImage = function (gst, buff, w, h, msk) {
+  if (this.currPage != this.needPage) return;
+  var ctx = this.ctx;
+
+  if (buff.length == w * h * 4) {
+    buff = buff.slice(0);
+    if (msk && msk.length == w * h * 4) for (var i = 0; i < buff.length; i += 4) {
+      buff[i + 3] = msk[i + 1];
+    }
+    var cnv = document.createElement("canvas"),
+        cctx = cnv.getContext("2d");
+    cnv.width = w;
+    cnv.height = h;
+    var imgd = cctx.createImageData(w, h);
+
+    for (var i = 0; i < buff.length; i++) {
+      imgd.data[i] = buff[i];
+    }
+
+    cctx.putImageData(imgd, 0, 0);
+    ctx.save();
+    var m = [1, 0, 0, 1, 0, 0];
+
+    this._concat(m, [1 / w, 0, 0, -1 / h, 0, 1]);
+
+    this._concat(m, gst.ctm);
+
+    ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);
+    ctx.drawImage(cnv, 0, 0);
+    ctx.restore();
+  }
+};
+
+exports.ToContext2D.prototype.ShowPage = function () {
+  this.currPage++;
+};
+
+exports.ToContext2D.prototype.Done = function () {};
+
+function _flt(n) {
+  return "" + parseFloat(n.toFixed(2));
+}
+
+exports.ToContext2D.prototype._setStyle = function (gst, ctx) {
+  var scl = this._scale(gst.ctm);
+
+  ctx.fillStyle = this._getFill(gst.colr, gst.ca, ctx);
+  ctx.strokeStyle = this._getFill(gst.COLR, gst.CA, ctx);
+  ctx.lineCap = ["butt", "round", "square"][gst.lcap];
+  ctx.lineJoin = ["miter", "round", "bevel"][gst.ljoin];
+  ctx.lineWidth = gst.lwidth * scl;
+  var dsh = gst.dash.slice(0);
+
+  for (var i = 0; i < dsh.length; i++) {
+    dsh[i] = _flt(dsh[i] * scl);
+  }
+
+  ctx.setLineDash(dsh);
+  ctx.miterLimit = gst.mlimit * scl;
+  var fn = gst.font.Tf,
+      ln = fn.toLowerCase();
+  var p0 = ln.indexOf("bold") != -1 ? "bold " : "";
+  var p1 = ln.indexOf("italic") != -1 || ln.indexOf("oblique") != -1 ? "italic " : "";
+  ctx.font = p0 + p1 + gst.font.Tfs + "px \"" + fn + "\"";
+};
+
+exports.ToContext2D.prototype._getFill = function (colr, ca, ctx) {
+  if (colr.typ == null) return this._colr(colr, ca);else {
+    var grd = colr,
+        crd = grd.crds,
+        mat = grd.mat,
+        scl = this._scale(mat),
+        gf;
+
+    if (grd.typ == "lin") {
+      var p0 = this._multPoint(mat, crd.slice(0, 2)),
+          p1 = this._multPoint(mat, crd.slice(2));
+
+      gf = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
+    } else if (grd.typ == "rad") {
+      var p0 = this._multPoint(mat, crd.slice(0, 2)),
+          p1 = this._multPoint(mat, crd.slice(3));
+
+      gf = ctx.createRadialGradient(p0[0], p0[1], crd[2] * scl, p1[0], p1[1], crd[5] * scl);
+    }
+
+    for (var i = 0; i < grd.grad.length; i++) {
+      gf.addColorStop(grd.grad[i][0], this._colr(grd.grad[i][1], ca));
+    }
+
+    return gf;
+  }
+};
+
+exports.ToContext2D.prototype._colr = function (c, a) {
+  return "rgba(" + Math.round(c[0] * 255) + "," + Math.round(c[1] * 255) + "," + Math.round(c[2] * 255) + "," + a + ")";
+};
+
+exports.ToContext2D.prototype._scale = function (m) {
+  return Math.sqrt(Math.abs(m[0] * m[3] - m[1] * m[2]));
+};
+
+exports.ToContext2D.prototype._concat = function (m, w) {
+  var a = m[0],
+      b = m[1],
+      c = m[2],
+      d = m[3],
+      tx = m[4],
+      ty = m[5];
+  m[0] = a * w[0] + b * w[2];
+  m[1] = a * w[1] + b * w[3];
+  m[2] = c * w[0] + d * w[2];
+  m[3] = c * w[1] + d * w[3];
+  m[4] = tx * w[0] + ty * w[2] + w[4];
+  m[5] = tx * w[1] + ty * w[3] + w[5];
+};
+
+exports.ToContext2D.prototype._multPoint = function (m, p) {
+  var x = p[0],
+      y = p[1];
+  return [x * m[0] + y * m[2] + m[4], x * m[1] + y * m[3] + m[5]];
+}, exports.ToContext2D.prototype._draw = function (path, ctx) {
+  var c = 0,
+      crds = path.crds;
+
+  for (var j = 0; j < path.cmds.length; j++) {
+    var cmd = path.cmds[j];
+
+    if (cmd == "M") {
+      ctx.moveTo(crds[c], crds[c + 1]);
+      c += 2;
+    } else if (cmd == "L") {
+      ctx.lineTo(crds[c], crds[c + 1]);
+      c += 2;
+    } else if (cmd == "C") {
+      ctx.bezierCurveTo(crds[c], crds[c + 1], crds[c + 2], crds[c + 3], crds[c + 4], crds[c + 5]);
+      c += 6;
+    } else if (cmd == "Q") {
+      ctx.quadraticCurveTo(crds[c], crds[c + 1], crds[c + 2], crds[c + 3]);
+      c += 4;
+    } else if (cmd == "Z") {
+      ctx.closePath();
+    }
+  }
+};
+
+},{}],93:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getBinaryContent = exports.isContainMultiType = exports.isKoera = exports.isJapanese = exports.isChinese = exports.fromulaRef = exports.escapeCharacter = exports.generateRandomIndex = exports.LightenDarkenColor = exports.getRowHeightPixel = exports.getColumnWidthPixel = exports.getXmlAttibute = exports.getPxByEMUs = exports.getptToPxRatioByDPI = exports.getcellrange = exports.getRangetxt = void 0;
+
+var constant_1 = require("./constant");
+
+function getRangetxt(range, sheettxt) {
+  var row0 = range["row"][0],
+      row1 = range["row"][1];
+  var column0 = range["column"][0],
+      column1 = range["column"][1];
+
+  if (row0 == null && row1 == null) {
+    return sheettxt + chatatABC(column0) + ":" + chatatABC(column1);
+  } else if (column0 == null && column1 == null) {
+    return sheettxt + (row0 + 1) + ":" + (row1 + 1);
+  } else {
+    if (column0 == column1 && row0 == row1) {
+      return sheettxt + chatatABC(column0) + (row0 + 1);
+    } else {
+      return sheettxt + chatatABC(column0) + (row0 + 1) + ":" + chatatABC(column1) + (row1 + 1);
+    }
+  }
+}
+
+exports.getRangetxt = getRangetxt;
+
+function getcellrange(txt, sheets, sheetId) {
+  if (sheets === void 0) {
+    sheets = {};
+  }
+
+  if (sheetId === void 0) {
+    sheetId = "1";
+  }
+
+  var val = txt.split("!");
+  var sheettxt = "",
+      rangetxt = "",
+      sheetIndex = -1;
+
+  if (val.length > 1) {
+    sheettxt = val[0];
+    rangetxt = val[1];
+    var si = sheets[sheettxt];
+
+    if (si == null) {
+      sheetIndex = parseInt(sheetId);
+    } else {
+      sheetIndex = parseInt(si);
+    }
+  } else {
+    sheetIndex = parseInt(sheetId);
+    rangetxt = val[0];
+  }
+
+  if (rangetxt.indexOf(":") == -1) {
+    var row = parseInt(rangetxt.replace(/[^0-9]/g, "")) - 1;
+    var col = ABCatNum(rangetxt.replace(/[^A-Za-z]/g, ""));
+
+    if (!isNaN(row) && !isNaN(col)) {
+      return {
+        "row": [row, row],
+        "column": [col, col],
+        "sheetIndex": sheetIndex
+      };
+    } else {
+      return null;
+    }
+  } else {
+    var rangetxtArray = rangetxt.split(":");
+    var row = [],
+        col = [];
+    row[0] = parseInt(rangetxtArray[0].replace(/[^0-9]/g, "")) - 1;
+    row[1] = parseInt(rangetxtArray[1].replace(/[^0-9]/g, "")) - 1; // if (isNaN(row[0])) {
+    //     row[0] = 0;
+    // }
+    // if (isNaN(row[1])) {
+    //     row[1] = sheetdata.length - 1;
+    // }
+
+    if (row[0] > row[1]) {
+      return null;
+    }
+
+    col[0] = ABCatNum(rangetxtArray[0].replace(/[^A-Za-z]/g, ""));
+    col[1] = ABCatNum(rangetxtArray[1].replace(/[^A-Za-z]/g, "")); // if (isNaN(col[0])) {
+    //     col[0] = 0;
+    // }
+    // if (isNaN(col[1])) {
+    //     col[1] = sheetdata[0].length - 1;
+    // }
+
+    if (col[0] > col[1]) {
+      return null;
+    }
+
+    return {
+      "row": row,
+      "column": col,
+      "sheetIndex": sheetIndex
+    };
+  }
+}
+
+exports.getcellrange = getcellrange; //列下标  字母转数字
+
+function ABCatNum(abc) {
+  abc = abc.toUpperCase();
+  var abc_len = abc.length;
+
+  if (abc_len == 0) {
+    return NaN;
+  }
+
+  var abc_array = abc.split("");
+  var wordlen = constant_1.columeHeader_word.length;
+  var ret = 0;
+
+  for (var i = abc_len - 1; i >= 0; i--) {
+    if (i == abc_len - 1) {
+      ret += constant_1.columeHeader_word_index[abc_array[i]];
+    } else {
+      ret += Math.pow(wordlen, abc_len - i - 1) * (constant_1.columeHeader_word_index[abc_array[i]] + 1);
+    }
+  }
+
+  return ret;
+} //列下标  数字转字母
+
+
+function chatatABC(index) {
+  var wordlen = constant_1.columeHeader_word.length;
+
+  if (index < wordlen) {
+    return constant_1.columeHeader_word[index];
+  } else {
+    var last = 0,
+        pre = 0,
+        ret = "";
+    var i = 1,
+        n = 0;
+
+    while (index >= wordlen / (wordlen - 1) * (Math.pow(wordlen, i++) - 1)) {
+      n = i;
+    }
+
+    var index_ab = index - wordlen / (wordlen - 1) * (Math.pow(wordlen, n - 1) - 1); //970
+
+    last = index_ab + 1;
+
+    for (var x = n; x > 0; x--) {
+      var last1 = last,
+          x1 = x; //-702=268, 3
+
+      if (x == 1) {
+        last1 = last1 % wordlen;
+
+        if (last1 == 0) {
+          last1 = 26;
+        }
+
+        return ret + constant_1.columeHeader_word[last1 - 1];
+      }
+
+      last1 = Math.ceil(last1 / Math.pow(wordlen, x - 1)); //last1 = last1 % wordlen;
+
+      ret += constant_1.columeHeader_word[last1 - 1];
+
+      if (x > 1) {
+        last = last - (last1 - 1) * wordlen;
+      }
+    }
+  }
+}
+/**
+ * @return ratio, default 0.75 1in = 2.54cm = 25.4mm = 72pt = 6pc,  pt = 1/72 In, px = 1/dpi In
+*/
+
+
+function getptToPxRatioByDPI() {
+  return 72 / 96;
+}
+
+exports.getptToPxRatioByDPI = getptToPxRatioByDPI;
+/**
+ * @emus EMUs, Excel drawing unit
+ * @return pixel
+*/
+
+function getPxByEMUs(emus) {
+  if (emus == null) {
+    return 0;
+  }
+
+  var inch = emus / 914400;
+  var pt = inch * 72;
+  var px = pt / getptToPxRatioByDPI();
+  return px;
+}
+
+exports.getPxByEMUs = getPxByEMUs;
+/**
+ * @dom xml attribute object
+ * @attr attribute name
+ * @d if attribute is null, return default value
+ * @return attribute value
+*/
+
+function getXmlAttibute(dom, attr, d) {
+  var value = dom[attr];
+  value = value == null ? d : value;
+  return value;
+}
+
+exports.getXmlAttibute = getXmlAttibute;
+/**
+ * @columnWidth Excel column width
+ * @return pixel column width
+*/
+
+function getColumnWidthPixel(columnWidth) {
+  var pix = Math.round((columnWidth - 0.83) * 8 + 5);
+  return pix;
+}
+
+exports.getColumnWidthPixel = getColumnWidthPixel;
+/**
+ * @rowHeight Excel row height
+ * @return pixel row height
+*/
+
+function getRowHeightPixel(rowHeight) {
+  var pix = Math.round(rowHeight / getptToPxRatioByDPI());
+  return pix;
+}
+
+exports.getRowHeightPixel = getRowHeightPixel;
+
+function LightenDarkenColor(sixColor, tint) {
+  var hex = sixColor.substring(sixColor.length - 6, sixColor.length);
+  var rgbArray = hexToRgbArray("#" + hex);
+  var hslArray = rgbToHsl(rgbArray[0], rgbArray[1], rgbArray[2]);
+
+  if (tint > 0) {
+    hslArray[2] = hslArray[2] * (1.0 - tint) + tint;
+  } else if (tint < 0) {
+    hslArray[2] = hslArray[2] * (1.0 + tint);
+  } else {
+    return "#" + hex;
+  }
+
+  var newRgbArray = hslToRgb(hslArray[0], hslArray[1], hslArray[2]);
+  return rgbToHex("RGB(" + newRgbArray.join(",") + ")");
+}
+
+exports.LightenDarkenColor = LightenDarkenColor;
+
+function rgbToHex(rgb) {
+  //十六进制颜色值的正则表达式
+  var reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/; // 如果是rgb颜色表示
+
+  if (/^(rgb|RGB)/.test(rgb)) {
+    var aColor = rgb.replace(/(?:\(|\)|rgb|RGB)*/g, "").split(",");
+    var strHex = "#";
+
+    for (var i = 0; i < aColor.length; i++) {
+      var hex = Number(aColor[i]).toString(16);
+
+      if (hex.length < 2) {
+        hex = '0' + hex;
+      }
+
+      strHex += hex;
+    }
+
+    if (strHex.length !== 7) {
+      strHex = rgb;
+    }
+
+    return strHex;
+  } else if (reg.test(rgb)) {
+    var aNum = rgb.replace(/#/, "").split("");
+
+    if (aNum.length === 6) {
+      return rgb;
+    } else if (aNum.length === 3) {
+      var numHex = "#";
+
+      for (var i = 0; i < aNum.length; i += 1) {
+        numHex += aNum[i] + aNum[i];
+      }
+
+      return numHex;
+    }
+  }
+
+  return rgb;
+}
+
+function hexToRgb(hex) {
+  var sColor = hex.toLowerCase(); //十六进制颜色值的正则表达式
+
+  var reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/; // 如果是16进制颜色
+
+  if (sColor && reg.test(sColor)) {
+    if (sColor.length === 4) {
+      var sColorNew = "#";
+
+      for (var i = 1; i < 4; i += 1) {
+        sColorNew += sColor.slice(i, i + 1).concat(sColor.slice(i, i + 1));
+      }
+
+      sColor = sColorNew;
+    } //处理六位的颜色值
+
+
+    var sColorChange = [];
+
+    for (var i = 1; i < 7; i += 2) {
+      sColorChange.push(parseInt("0x" + sColor.slice(i, i + 2)));
+    }
+
+    return "RGB(" + sColorChange.join(",") + ")";
+  }
+
+  return sColor;
+}
+
+function hexToRgbArray(hex) {
+  var sColor = hex.toLowerCase(); //十六进制颜色值的正则表达式
+
+  var reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/; // 如果是16进制颜色
+
+  if (sColor && reg.test(sColor)) {
+    if (sColor.length === 4) {
+      var sColorNew = "#";
+
+      for (var i = 1; i < 4; i += 1) {
+        sColorNew += sColor.slice(i, i + 1).concat(sColor.slice(i, i + 1));
+      }
+
+      sColor = sColorNew;
+    } //处理六位的颜色值
+
+
+    var sColorChange = [];
+
+    for (var i = 1; i < 7; i += 2) {
+      sColorChange.push(parseInt("0x" + sColor.slice(i, i + 2)));
+    }
+
+    return sColorChange;
+  }
+
+  return null;
+}
+/**
+ * HSL颜色值转换为RGB.
+ * 换算公式改编自 http://en.wikipedia.org/wiki/HSL_color_space.
+ * h, s, 和 l 设定在 [0, 1] 之间
+ * 返回的 r, g, 和 b 在 [0, 255]之间
+ *
+ * @param   Number  h       色相
+ * @param   Number  s       饱和度
+ * @param   Number  l       亮度
+ * @return  Array           RGB色值数值
+ */
+
+
+function hslToRgb(h, s, l) {
+  var r, g, b;
+
+  if (s == 0) {
+    r = g = b = l; // achromatic
+  } else {
+    var hue2rgb = function hue2rgb(p, q, t) {
+      if (t < 0) t += 1;
+      if (t > 1) t -= 1;
+      if (t < 1 / 6) return p + (q - p) * 6 * t;
+      if (t < 1 / 2) return q;
+      if (t < 2 / 3) return p + (q - p) * (2 / 3 - t) * 6;
+      return p;
+    };
+
+    var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
+    var p = 2 * l - q;
+    r = hue2rgb(p, q, h + 1 / 3);
+    g = hue2rgb(p, q, h);
+    b = hue2rgb(p, q, h - 1 / 3);
+  }
+
+  return [Math.round(r * 255), Math.round(g * 255), Math.round(b * 255)];
+}
+/**
+ * RGB 颜色值转换为 HSL.
+ * 转换公式参考自 http://en.wikipedia.org/wiki/HSL_color_space.
+ * r, g, 和 b 需要在 [0, 255] 范围内
+ * 返回的 h, s, 和 l 在 [0, 1] 之间
+ *
+ * @param   Number  r       红色色值
+ * @param   Number  g       绿色色值
+ * @param   Number  b       蓝色色值
+ * @return  Array           HSL各值数组
+ */
+
+
+function rgbToHsl(r, g, b) {
+  r /= 255, g /= 255, b /= 255;
+  var max = Math.max(r, g, b),
+      min = Math.min(r, g, b);
+  var h,
+      s,
+      l = (max + min) / 2;
+
+  if (max == min) {
+    h = s = 0; // achromatic
+  } else {
+    var d = max - min;
+    s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
+
+    switch (max) {
+      case r:
+        h = (g - b) / d + (g < b ? 6 : 0);
+        break;
+
+      case g:
+        h = (b - r) / d + 2;
+        break;
+
+      case b:
+        h = (r - g) / d + 4;
+        break;
+    }
+
+    h /= 6;
+  }
+
+  return [h, s, l];
+}
+
+function generateRandomIndex(prefix) {
+  if (prefix == null) {
+    prefix = "Sheet";
+  }
+
+  var userAgent = window.navigator.userAgent.replace(/[^a-zA-Z0-9]/g, "").split("");
+  var mid = "";
+
+  for (var i = 0; i < 5; i++) {
+    mid += userAgent[Math.round(Math.random() * (userAgent.length - 1))];
+  }
+
+  var time = new Date().getTime();
+  return prefix + "_" + mid + "_" + time;
+}
+
+exports.generateRandomIndex = generateRandomIndex;
+
+function escapeCharacter(str) {
+  if (str == null || str.length == 0) {
+    return str;
+  }
+
+  return str.replace(/&amp;/g, "&").replace(/&quot;/g, '"').replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&nbsp;/g, ' ').replace(/&apos;/g, "'").replace(/&iexcl;/g, "¡").replace(/&cent;/g, "¢").replace(/&pound;/g, "£").replace(/&curren;/g, "¤").replace(/&yen;/g, "¥").replace(/&brvbar;/g, "¦").replace(/&sect;/g, "§").replace(/&uml;/g, "¨").replace(/&copy;/g, "©").replace(/&ordf;/g, "ª").replace(/&laquo;/g, "«").replace(/&not;/g, "¬").replace(/&shy;/g, "­").replace(/&reg;/g, "®").replace(/&macr;/g, "¯").replace(/&deg;/g, "°").replace(/&plusmn;/g, "±").replace(/&sup2;/g, "²").replace(/&sup3;/g, "³").replace(/&acute;/g, "´").replace(/&micro;/g, "µ").replace(/&para;/g, "¶").replace(/&middot;/g, "·").replace(/&cedil;/g, "¸").replace(/&sup1;/g, "¹").replace(/&ordm;/g, "º").replace(/&raquo;/g, "»").replace(/&frac14;/g, "¼").replace(/&frac12;/g, "½").replace(/&frac34;/g, "¾").replace(/&iquest;/g, "¿").replace(/&times;/g, "×").replace(/&divide;/g, "÷").replace(/&Agrave;/g, "À").replace(/&Aacute;/g, "Á").replace(/&Acirc;/g, "Â").replace(/&Atilde;/g, "Ã").replace(/&Auml;/g, "Ä").replace(/&Aring;/g, "Å").replace(/&AElig;/g, "Æ").replace(/&Ccedil;/g, "Ç").replace(/&Egrave;/g, "È").replace(/&Eacute;/g, "É").replace(/&Ecirc;/g, "Ê").replace(/&Euml;/g, "Ë").replace(/&Igrave;/g, "Ì").replace(/&Iacute;/g, "Í").replace(/&Icirc;/g, "Î").replace(/&Iuml;/g, "Ï").replace(/&ETH;/g, "Ð").replace(/&Ntilde;/g, "Ñ").replace(/&Ograve;/g, "Ò").replace(/&Oacute;/g, "Ó").replace(/&Ocirc;/g, "Ô").replace(/&Otilde;/g, "Õ").replace(/&Ouml;/g, "Ö").replace(/&Oslash;/g, "Ø").replace(/&Ugrave;/g, "Ù").replace(/&Uacute;/g, "Ú").replace(/&Ucirc;/g, "Û").replace(/&Uuml;/g, "Ü").replace(/&Yacute;/g, "Ý").replace(/&THORN;/g, "Þ").replace(/&szlig;/g, "ß").replace(/&agrave;/g, "à").replace(/&aacute;/g, "á").replace(/&acirc;/g, "â").replace(/&atilde;/g, "ã").replace(/&auml;/g, "ä").replace(/&aring;/g, "å").replace(/&aelig;/g, "æ").replace(/&ccedil;/g, "ç").replace(/&egrave;/g, "è").replace(/&eacute;/g, "é").replace(/&ecirc;/g, "ê").replace(/&euml;/g, "ë").replace(/&igrave;/g, "ì").replace(/&iacute;/g, "í").replace(/&icirc;/g, "î").replace(/&iuml;/g, "ï").replace(/&eth;/g, "ð").replace(/&ntilde;/g, "ñ").replace(/&ograve;/g, "ò").replace(/&oacute;/g, "ó").replace(/&ocirc;/g, "ô").replace(/&otilde;/g, "õ").replace(/&ouml;/g, "ö").replace(/&oslash;/g, "ø").replace(/&ugrave;/g, "ù").replace(/&uacute;/g, "ú").replace(/&ucirc;/g, "û").replace(/&uuml;/g, "ü").replace(/&yacute;/g, "ý").replace(/&thorn;/g, "þ").replace(/&yuml;/g, "ÿ");
+}
+
+exports.escapeCharacter = escapeCharacter;
+
+var fromulaRef =
+/** @class */
+function () {
+  function fromulaRef() {}
+
+  fromulaRef.trim = function (str) {
+    if (str == null) {
+      str = "";
+    }
+
+    return str.replace(/(^\s*)|(\s*$)/g, "");
+  };
+
+  fromulaRef.functionCopy = function (txt, mode, step) {
+    var _this = this;
+
+    if (_this.operatorjson == null) {
+      var arr = _this.operator.split("|"),
+          op = {};
+
+      for (var i_1 = 0; i_1 < arr.length; i_1++) {
+        op[arr[i_1].toString()] = 1;
+      }
+
+      _this.operatorjson = op;
+    }
+
+    if (mode == null) {
+      mode = "down";
+    }
+
+    if (step == null) {
+      step = 1;
+    }
+
+    if (txt.substr(0, 1) == "=") {
+      txt = txt.substr(1);
+    }
+
+    var funcstack = txt.split("");
+    var i = 0,
+        str = "",
+        function_str = "",
+        ispassby = true;
+    var matchConfig = {
+      "bracket": 0,
+      "comma": 0,
+      "squote": 0,
+      "dquote": 0
+    };
+
+    while (i < funcstack.length) {
+      var s = funcstack[i];
+
+      if (s == "(" && matchConfig.dquote == 0) {
+        matchConfig.bracket += 1;
+
+        if (str.length > 0) {
+          function_str += str + "(";
+        } else {
+          function_str += "(";
+        }
+
+        str = "";
+      } else if (s == ")" && matchConfig.dquote == 0) {
+        matchConfig.bracket -= 1;
+        function_str += _this.functionCopy(str, mode, step) + ")";
+        str = "";
+      } else if (s == '"' && matchConfig.squote == 0) {
+        if (matchConfig.dquote > 0) {
+          function_str += str + '"';
+          matchConfig.dquote -= 1;
+          str = "";
+        } else {
+          matchConfig.dquote += 1;
+          str += '"';
+        }
+      } else if (s == ',' && matchConfig.dquote == 0) {
+        function_str += _this.functionCopy(str, mode, step) + ',';
+        str = "";
+      } else if (s == '&' && matchConfig.dquote == 0) {
+        if (str.length > 0) {
+          function_str += _this.functionCopy(str, mode, step) + "&";
+          str = "";
+        } else {
+          function_str += "&";
+        }
+      } else if (s in _this.operatorjson && matchConfig.dquote == 0) {
+        var s_next = "";
+
+        if (i + 1 < funcstack.length) {
+          s_next = funcstack[i + 1];
+        }
+
+        var p = i - 1,
+            s_pre = null;
+
+        if (p >= 0) {
+          do {
+            s_pre = funcstack[p--];
+          } while (p >= 0 && s_pre == " ");
+        }
+
+        if (s + s_next in _this.operatorjson) {
+          if (str.length > 0) {
+            function_str += _this.functionCopy(str, mode, step) + s + s_next;
+            str = "";
+          } else {
+            function_str += s + s_next;
+          }
+
+          i++;
+        } else if (!/[^0-9]/.test(s_next) && s == "-" && (s_pre == "(" || s_pre == null || s_pre == "," || s_pre == " " || s_pre in _this.operatorjson)) {
+          str += s;
+        } else {
+          if (str.length > 0) {
+            function_str += _this.functionCopy(str, mode, step) + s;
+            str = "";
+          } else {
+            function_str += s;
+          }
+        }
+      } else {
+        str += s;
+      }
+
+      if (i == funcstack.length - 1) {
+        if (_this.iscelldata(_this.trim(str))) {
+          if (mode == "down") {
+            function_str += _this.downparam(_this.trim(str), step);
+          } else if (mode == "up") {
+            function_str += _this.upparam(_this.trim(str), step);
+          } else if (mode == "left") {
+            function_str += _this.leftparam(_this.trim(str), step);
+          } else if (mode == "right") {
+            function_str += _this.rightparam(_this.trim(str), step);
+          }
+        } else {
+          function_str += _this.trim(str);
+        }
+      }
+
+      i++;
+    }
+
+    return function_str;
+  };
+
+  fromulaRef.downparam = function (txt, step) {
+    return this.updateparam("d", txt, step);
+  };
+
+  fromulaRef.upparam = function (txt, step) {
+    return this.updateparam("u", txt, step);
+  };
+
+  fromulaRef.leftparam = function (txt, step) {
+    return this.updateparam("l", txt, step);
+  };
+
+  fromulaRef.rightparam = function (txt, step) {
+    return this.updateparam("r", txt, step);
+  };
+
+  fromulaRef.updateparam = function (orient, txt, step) {
+    var _this = this;
+
+    var val = txt.split("!"),
+        rangetxt,
+        prefix = "";
+
+    if (val.length > 1) {
+      rangetxt = val[1];
+      prefix = val[0] + "!";
+    } else {
+      rangetxt = val[0];
+    }
+
+    if (rangetxt.indexOf(":") == -1) {
+      var row = parseInt(rangetxt.replace(/[^0-9]/g, ""));
+      var col = ABCatNum(rangetxt.replace(/[^A-Za-z]/g, ""));
+
+      var freezonFuc = _this.isfreezonFuc(rangetxt);
+
+      var $row = freezonFuc[0] ? "$" : "",
+          $col = freezonFuc[1] ? "$" : "";
+
+      if (orient == "u" && !freezonFuc[0]) {
+        row -= step;
+      } else if (orient == "r" && !freezonFuc[1]) {
+        col += step;
+      } else if (orient == "l" && !freezonFuc[1]) {
+        col -= step;
+      } else if (!freezonFuc[0]) {
+        row += step;
+      }
+
+      if (row < 0 || col < 0) {
+        return _this.error.r;
+      }
+
+      if (!isNaN(row) && !isNaN(col)) {
+        return prefix + $col + chatatABC(col) + $row + row;
+      } else if (!isNaN(row)) {
+        return prefix + $row + row;
+      } else if (!isNaN(col)) {
+        return prefix + $col + chatatABC(col);
+      } else {
+        return txt;
+      }
+    } else {
+      rangetxt = rangetxt.split(":");
+      var row = [],
+          col = [];
+      row[0] = parseInt(rangetxt[0].replace(/[^0-9]/g, ""));
+      row[1] = parseInt(rangetxt[1].replace(/[^0-9]/g, ""));
+
+      if (row[0] > row[1]) {
+        return txt;
+      }
+
+      col[0] = ABCatNum(rangetxt[0].replace(/[^A-Za-z]/g, ""));
+      col[1] = ABCatNum(rangetxt[1].replace(/[^A-Za-z]/g, ""));
+
+      if (col[0] > col[1]) {
+        return txt;
+      }
+
+      var freezonFuc0 = _this.isfreezonFuc(rangetxt[0]);
+
+      var freezonFuc1 = _this.isfreezonFuc(rangetxt[1]);
+
+      var $row0 = freezonFuc0[0] ? "$" : "",
+          $col0 = freezonFuc0[1] ? "$" : "";
+      var $row1 = freezonFuc1[0] ? "$" : "",
+          $col1 = freezonFuc1[1] ? "$" : "";
+
+      if (orient == "u") {
+        if (!freezonFuc0[0]) {
+          row[0] -= step;
+        }
+
+        if (!freezonFuc1[0]) {
+          row[1] -= step;
+        }
+      } else if (orient == "r") {
+        if (!freezonFuc0[1]) {
+          col[0] += step;
+        }
+
+        if (!freezonFuc1[1]) {
+          col[1] += step;
+        }
+      } else if (orient == "l") {
+        if (!freezonFuc0[1]) {
+          col[0] -= step;
+        }
+
+        if (!freezonFuc1[1]) {
+          col[1] -= step;
+        }
+      } else {
+        if (!freezonFuc0[0]) {
+          row[0] += step;
+        }
+
+        if (!freezonFuc1[0]) {
+          row[1] += step;
+        }
+      }
+
+      if (row[0] < 0 || col[0] < 0) {
+        return _this.error.r;
+      }
+
+      if (isNaN(col[0]) && isNaN(col[1])) {
+        return prefix + $row0 + row[0] + ":" + $row1 + row[1];
+      } else if (isNaN(row[0]) && isNaN(row[1])) {
+        return prefix + $col0 + chatatABC(col[0]) + ":" + $col1 + chatatABC(col[1]);
+      } else {
+        return prefix + $col0 + chatatABC(col[0]) + $row0 + row[0] + ":" + $col1 + chatatABC(col[1]) + $row1 + row[1];
+      }
+    }
+  };
+
+  fromulaRef.iscelldata = function (txt) {
+    var val = txt.split("!"),
+        rangetxt;
+
+    if (val.length > 1) {
+      rangetxt = val[1];
+    } else {
+      rangetxt = val[0];
+    }
+
+    var reg_cell = /^(([a-zA-Z]+)|([$][a-zA-Z]+))(([0-9]+)|([$][0-9]+))$/g; //增加正则判断单元格为字母+数字的格式:如 A1:B3
+
+    var reg_cellRange = /^(((([a-zA-Z]+)|([$][a-zA-Z]+))(([0-9]+)|([$][0-9]+)))|((([a-zA-Z]+)|([$][a-zA-Z]+))))$/g; //增加正则判断单元格为字母+数字或字母的格式:如 A1:B3,A:A
+
+    if (rangetxt.indexOf(":") == -1) {
+      var row = parseInt(rangetxt.replace(/[^0-9]/g, "")) - 1;
+      var col = ABCatNum(rangetxt.replace(/[^A-Za-z]/g, ""));
+
+      if (!isNaN(row) && !isNaN(col) && rangetxt.toString().match(reg_cell)) {
+        return true;
+      } else if (!isNaN(row)) {
+        return false;
+      } else if (!isNaN(col)) {
+        return false;
+      } else {
+        return false;
+      }
+    } else {
+      reg_cellRange = /^(((([a-zA-Z]+)|([$][a-zA-Z]+))(([0-9]+)|([$][0-9]+)))|((([a-zA-Z]+)|([$][a-zA-Z]+)))|((([0-9]+)|([$][0-9]+s))))$/g;
+      rangetxt = rangetxt.split(":");
+      var row = [],
+          col = [];
+      row[0] = parseInt(rangetxt[0].replace(/[^0-9]/g, "")) - 1;
+      row[1] = parseInt(rangetxt[1].replace(/[^0-9]/g, "")) - 1;
+
+      if (row[0] > row[1]) {
+        return false;
+      }
+
+      col[0] = ABCatNum(rangetxt[0].replace(/[^A-Za-z]/g, ""));
+      col[1] = ABCatNum(rangetxt[1].replace(/[^A-Za-z]/g, ""));
+
+      if (col[0] > col[1]) {
+        return false;
+      }
+
+      if (rangetxt[0].toString().match(reg_cellRange) && rangetxt[1].toString().match(reg_cellRange)) {
+        return true;
+      } else {
+        return false;
+      }
+    }
+  };
+
+  fromulaRef.isfreezonFuc = function (txt) {
+    var row = txt.replace(/[^0-9]/g, "");
+    var col = txt.replace(/[^A-Za-z]/g, "");
+    var row$ = txt.substr(txt.indexOf(row) - 1, 1);
+    var col$ = txt.substr(txt.indexOf(col) - 1, 1);
+    var ret = [false, false];
+
+    if (row$ == "$") {
+      ret[0] = true;
+    }
+
+    if (col$ == "$") {
+      ret[1] = true;
+    }
+
+    return ret;
+  };
+
+  fromulaRef.operator = '==|!=|<>|<=|>=|=|+|-|>|<|/|*|%|&|^';
+  fromulaRef.error = {
+    v: "#VALUE!",
+    n: "#NAME?",
+    na: "#N/A",
+    r: "#REF!",
+    d: "#DIV/0!",
+    nm: "#NUM!",
+    nl: "#NULL!",
+    sp: "#SPILL!" //数组范围有其它值
+
+  };
+  fromulaRef.operatorjson = null;
+  return fromulaRef;
+}();
+
+exports.fromulaRef = fromulaRef;
+
+function isChinese(temp) {
+  var re = /[^\u4e00-\u9fa5]/;
+  var reg = /[\u3002|\uff1f|\uff01|\uff0c|\u3001|\uff1b|\uff1a|\u201c|\u201d|\u2018|\u2019|\uff08|\uff09|\u300a|\u300b|\u3008|\u3009|\u3010|\u3011|\u300e|\u300f|\u300c|\u300d|\ufe43|\ufe44|\u3014|\u3015|\u2026|\u2014|\uff5e|\ufe4f|\uffe5]/;
+  if (reg.test(temp)) return true;
+  if (re.test(temp)) return false;
+  return true;
+}
+
+exports.isChinese = isChinese;
+
+function isJapanese(temp) {
+  var re = /[^\u0800-\u4e00]/;
+  if (re.test(temp)) return false;
+  return true;
+}
+
+exports.isJapanese = isJapanese;
+
+function isKoera(chr) {
+  if (chr > 0x3130 && chr < 0x318F || chr >= 0xAC00 && chr <= 0xD7A3) {
+    return true;
+  }
+
+  return false;
+}
+
+exports.isKoera = isKoera;
+
+function isContainMultiType(str) {
+  var isUnicode = false;
+
+  if (escape(str).indexOf("%u") > -1) {
+    isUnicode = true;
+  }
+
+  var isNot = false;
+  var reg = /[0-9a-z]/gi;
+
+  if (reg.test(str)) {
+    isNot = true;
+  }
+
+  var reEnSign = /[\x00-\xff]+/g;
+
+  if (reEnSign.test(str)) {
+    isNot = true;
+  }
+
+  if (isUnicode && isNot) {
+    return true;
+  }
+
+  return false;
+}
+
+exports.isContainMultiType = isContainMultiType;
+
+function getBinaryContent(path, options) {
+  var promise, resolve, reject;
+  var callback;
+
+  if (!options) {
+    options = {};
+  } // taken from jQuery
+
+
+  var createStandardXHR = function createStandardXHR() {
+    try {
+      return new window.XMLHttpRequest();
+    } catch (e) {}
+  };
+
+  var createActiveXHR = function createActiveXHR() {
+    try {
+      return new window.ActiveXObject("Microsoft.XMLHTTP");
+    } catch (e) {}
+  }; // Create the request object
+
+
+  var createXHR = typeof window !== "undefined" && window.ActiveXObject ?
+  /* Microsoft failed to properly
+  * implement the XMLHttpRequest in IE7 (can't request local files),
+  * so we use the ActiveXObject when it is available
+  * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
+  * we need a fallback.
+  */
+  function () {
+    return createStandardXHR() || createActiveXHR();
+  } : // For all other browsers, use the standard XMLHttpRequest object
+  createStandardXHR; // backward compatible callback
+
+  if (typeof options === "function") {
+    callback = options;
+    options = {};
+  } else if (typeof options.callback === 'function') {
+    // callback inside options object
+    callback = options.callback;
+  }
+
+  resolve = function resolve(data) {
+    callback(null, data);
+  };
+
+  reject = function reject(err) {
+    callback(err, null);
+  };
+
+  try {
+    var xhr = createXHR();
+    xhr.open('GET', path, true); // recent browsers
+
+    if ("responseType" in xhr) {
+      xhr.responseType = "arraybuffer";
+    } // older browser
+
+
+    if (xhr.overrideMimeType) {
+      xhr.overrideMimeType("text/plain; charset=x-user-defined");
+    }
+
+    xhr.onreadystatechange = function (event) {
+      // use `xhr` and not `this`... thanks IE
+      if (xhr.readyState === 4) {
+        if (xhr.status === 200 || xhr.status === 0) {
+          try {
+            resolve(function (xhr) {
+              // for xhr.responseText, the 0xFF mask is applied by JSZip
+              return xhr.response || xhr.responseText;
+            }(xhr));
+          } catch (err) {
+            reject(new Error(err));
+          }
+        } else {
+          reject(new Error("Ajax error for " + path + " : " + this.status + " " + this.statusText));
+        }
+      }
+    };
+
+    if (options.progress) {
+      xhr.onprogress = function (e) {
+        options.progress({
+          path: path,
+          originalEvent: e,
+          percent: e.loaded / e.total * 100,
+          loaded: e.loaded,
+          total: e.total
+        });
+      };
+    }
+
+    xhr.send();
+  } catch (e) {
+    reject(new Error(e), null);
+  } // returns a promise or undefined depending on whether a callback was
+  // provided
+
+
+  return promise;
+}
+
+exports.getBinaryContent = getBinaryContent;
+
+},{"./constant":91}],94:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.LuckyExcel = void 0;
+
+var LuckyFile_1 = require("./ToLuckySheet/LuckyFile"); // import {SecurityDoor,Car} from './content';
+
+
+var HandleZip_1 = require("./HandleZip"); // //demo
+// function demoHandler(){
+//     let upload = document.getElementById("Luckyexcel-demo-file");
+//     let selectADemo = document.getElementById("Luckyexcel-select-demo");
+//     let downlodDemo = document.getElementById("Luckyexcel-downlod-file");
+//     let mask = document.getElementById("lucky-mask-demo");
+//     if(upload){
+//         window.onload = () => {
+//             upload.addEventListener("change", function(evt){
+//                 var files:FileList = (evt.target as any).files;
+//                 if(files==null || files.length==0){
+//                     alert("No files wait for import");
+//                     return;
+//                 }
+//                 let name = files[0].name;
+//                 let suffixArr = name.split("."), suffix = suffixArr[suffixArr.length-1];
+//                 if(suffix!="xlsx"){
+//                     alert("Currently only supports the import of xlsx files");
+//                     return;
+//                 }
+//                 LuckyExcel.transformExcelToLucky(files[0], function(exportJson:any, luckysheetfile:string){
+//                     if(exportJson.sheets==null || exportJson.sheets.length==0){
+//                         alert("Failed to read the content of the excel file, currently does not support xls files!");
+//                         return;
+//                     }
+//                     console.log(exportJson, luckysheetfile);
+//                     window.luckysheet.destroy();
+//                     window.luckysheet.create({
+//                         container: 'luckysheet', //luckysheet is the container id
+//                         showinfobar:false,
+//                         data:exportJson.sheets,
+//                         title:exportJson.info.name,
+//                         userInfo:exportJson.info.name.creator
+//                     });
+//                 });
+//             });
+//             selectADemo.addEventListener("change", function(evt){
+//                 var obj:any = selectADemo;
+//                 var index = obj.selectedIndex;
+//                 var value = obj.options[index].value;
+//                 var name = obj.options[index].innerHTML;
+//                 if(value==""){
+//                     return;
+//                 }
+//                 mask.style.display = "flex";
+//                 LuckyExcel.transformExcelToLuckyByUrl(value, name, function(exportJson:any, luckysheetfile:string){
+//                     if(exportJson.sheets==null || exportJson.sheets.length==0){
+//                         alert("Failed to read the content of the excel file, currently does not support xls files!");
+//                         return;
+//                     }
+//                     console.log(exportJson, luckysheetfile);
+//                     mask.style.display = "none";
+//                     window.luckysheet.destroy();
+//                     window.luckysheet.create({
+//                         container: 'luckysheet', //luckysheet is the container id
+//                         showinfobar:false,
+//                         data:exportJson.sheets,
+//                         title:exportJson.info.name,
+//                         userInfo:exportJson.info.name.creator
+//                     });
+//                 });
+//             });
+//             downlodDemo.addEventListener("click", function(evt){
+//                 var obj:any = selectADemo;
+//                 var index = obj.selectedIndex;
+//                 var value = obj.options[index].value;
+//                 if(value.length==0){
+//                     alert("Please select a demo file");
+//                     return;
+//                 }
+//                 var elemIF:any = document.getElementById("Lucky-download-frame");
+//                 if(elemIF==null){
+//                     elemIF = document.createElement("iframe");
+//                     elemIF.style.display = "none";
+//                     elemIF.id = "Lucky-download-frame";
+//                     document.body.appendChild(elemIF);
+//                 }
+//                 elemIF.src = value;
+//                 // elemIF.parentNode.removeChild(elemIF);
+//             });
+//         }
+//     }
+// }
+// demoHandler();
+// api
+
+
+var LuckyExcel =
+/** @class */
+function () {
+  function LuckyExcel() {}
+
+  LuckyExcel.transformExcelToLucky = function (excelFile, callBack) {
+    var handleZip = new HandleZip_1.HandleZip(excelFile);
+    handleZip.unzipFile(function (files) {
+      var luckyFile = new LuckyFile_1.LuckyFile(files, excelFile.name);
+      var luckysheetfile = luckyFile.Parse();
+      var exportJson = JSON.parse(luckysheetfile);
+
+      if (callBack != undefined) {
+        callBack(exportJson, luckysheetfile);
+      }
+    }, function (err) {
+      console.error(err);
+    });
+  };
+
+  LuckyExcel.transformExcelToLuckyByUrl = function (url, name, callBack) {
+    var handleZip = new HandleZip_1.HandleZip();
+    handleZip.unzipFileByUrl(url, function (files) {
+      var luckyFile = new LuckyFile_1.LuckyFile(files, name);
+      var luckysheetfile = luckyFile.Parse();
+      var exportJson = JSON.parse(luckysheetfile);
+
+      if (callBack != undefined) {
+        callBack(exportJson, luckysheetfile);
+      }
+    }, function (err) {
+      console.error(err);
+    });
+  };
+
+  LuckyExcel.transformLuckyToExcel = function (LuckyFile, callBack) {};
+
+  return LuckyExcel;
+}();
+
+exports.LuckyExcel = LuckyExcel;
+
+},{"./HandleZip":84,"./ToLuckySheet/LuckyFile":87}],95:[function(require,module,exports){
+"use strict";
+
+var main_1 = require("./main");
+
+module.exports = main_1.LuckyExcel;
+
+},{"./main":94}]},{},[95])(95)
+});