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| import * as argvTools from './argv-tools.mjs' | |
| import Definitions from './option-definitions.mjs' | |
| import findReplace from '../node_modules/find-replace/dist/index.mjs' | |
| import t from '../node_modules/typical/index.mjs' | |
| /** | |
| * @module argv-parser | |
| */ | |
| /** | |
| * @alias module:argv-parser | |
| */ | |
| class ArgvParser { | |
| /** | |
| * @param {OptionDefinitions} - Definitions array | |
| * @param {object} [options] - Options | |
| * @param {string[]} [options.argv] - Overrides `process.argv` | |
| * @param {boolean} [options.stopAtFirstUnknown] - | |
| * @param {boolean} [options.caseInsensitive] - Arguments will be parsed in a case insensitive manner. Defaults to false. | |
| */ | |
| constructor (definitions, options) { | |
| this.options = Object.assign({}, options) | |
| /** | |
| * Option Definitions | |
| */ | |
| this.definitions = Definitions.from(definitions, this.options.caseInsensitive) | |
| /** | |
| * Argv | |
| */ | |
| this.argv = argvTools.ArgvArray.from(this.options.argv) | |
| if (this.argv.hasCombinedShortOptions()) { | |
| findReplace(this.argv, argvTools.re.combinedShort.test.bind(argvTools.re.combinedShort), arg => { | |
| arg = arg.slice(1) | |
| return arg.split('').map(letter => ({ origArg: `-${arg}`, arg: '-' + letter })) | |
| }) | |
| } | |
| } | |
| /** | |
| * Yields one `{ event, name, value, arg, def }` argInfo object for each arg in `process.argv` (or `options.argv`). | |
| */ | |
| * [Symbol.iterator] () { | |
| const definitions = this.definitions | |
| let def | |
| let value | |
| let name | |
| let event | |
| let singularDefaultSet = false | |
| let unknownFound = false | |
| let origArg | |
| for (let arg of this.argv) { | |
| if (t.isPlainObject(arg)) { | |
| origArg = arg.origArg | |
| arg = arg.arg | |
| } | |
| if (unknownFound && this.options.stopAtFirstUnknown) { | |
| yield { event: 'unknown_value', arg, name: '_unknown', value: undefined } | |
| continue | |
| } | |
| /* handle long or short option */ | |
| if (argvTools.isOption(arg)) { | |
| def = definitions.get(arg, this.options.caseInsensitive) | |
| value = undefined | |
| if (def) { | |
| value = def.isBoolean() ? true : null | |
| event = 'set' | |
| } else { | |
| event = 'unknown_option' | |
| } | |
| /* handle --option-value notation */ | |
| } else if (argvTools.isOptionEqualsNotation(arg)) { | |
| const matches = arg.match(argvTools.re.optEquals) | |
| def = definitions.get(matches[1], this.options.caseInsensitive) | |
| if (def) { | |
| if (def.isBoolean()) { | |
| yield { event: 'unknown_value', arg, name: '_unknown', value, def } | |
| event = 'set' | |
| value = true | |
| } else { | |
| event = 'set' | |
| value = matches[2] | |
| } | |
| } else { | |
| event = 'unknown_option' | |
| } | |
| /* handle value */ | |
| } else if (argvTools.isValue(arg)) { | |
| if (def) { | |
| value = arg | |
| event = 'set' | |
| } else { | |
| /* get the defaultOption */ | |
| def = this.definitions.getDefault() | |
| if (def && !singularDefaultSet) { | |
| value = arg | |
| event = 'set' | |
| } else { | |
| event = 'unknown_value' | |
| def = undefined | |
| } | |
| } | |
| } | |
| name = def ? def.name : '_unknown' | |
| const argInfo = { event, arg, name, value, def } | |
| if (origArg) { | |
| argInfo.subArg = arg | |
| argInfo.arg = origArg | |
| } | |
| yield argInfo | |
| /* unknownFound logic */ | |
| if (name === '_unknown') unknownFound = true | |
| /* singularDefaultSet logic */ | |
| if (def && def.defaultOption && !def.isMultiple() && event === 'set') singularDefaultSet = true | |
| /* reset values once consumed and yielded */ | |
| if (def && def.isBoolean()) def = undefined | |
| /* reset the def if it's a singular which has been set */ | |
| if (def && !def.multiple && t.isDefined(value) && value !== null) { | |
| def = undefined | |
| } | |
| value = undefined | |
| event = undefined | |
| name = undefined | |
| origArg = undefined | |
| } | |
| } | |
| } | |
| export default ArgvParser | |