Spaces:
Running
Running
File size: 2,188 Bytes
1df763a |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 |
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.canSkipRegexpu = canSkipRegexpu;
exports.generateRegexpuOptions = generateRegexpuOptions;
exports.transformFlags = transformFlags;
var _features = require("./features.js");
function generateRegexpuOptions(pattern, toTransform) {
const feat = (name, ok = "transform") => {
return (0, _features.hasFeature)(toTransform, _features.FEATURES[name]) ? ok : false;
};
const featDuplicateNamedGroups = () => {
if (!feat("duplicateNamedCaptureGroups")) return false;
const regex = /\(\?<([^>]+)>/g;
const seen = new Set();
for (let match; match = regex.exec(pattern); seen.add(match[1])) {
if (seen.has(match[1])) return "transform";
}
return false;
};
return {
unicodeFlag: feat("unicodeFlag"),
unicodeSetsFlag: feat("unicodeSetsFlag") || "parse",
dotAllFlag: feat("dotAllFlag"),
unicodePropertyEscapes: feat("unicodePropertyEscape"),
namedGroups: feat("namedCaptureGroups") || featDuplicateNamedGroups(),
onNamedGroup: () => {},
modifiers: feat("modifiers")
};
}
function canSkipRegexpu(node, options) {
const {
flags,
pattern
} = node;
if (flags.includes("v")) {
if (options.unicodeSetsFlag === "transform") return false;
}
if (flags.includes("u")) {
if (options.unicodeFlag === "transform") return false;
if (options.unicodePropertyEscapes === "transform" && /\\[pP]{/.test(pattern)) {
return false;
}
}
if (flags.includes("s")) {
if (options.dotAllFlag === "transform") return false;
}
if (options.namedGroups === "transform" && /\(\?<(?![=!])/.test(pattern)) {
return false;
}
if (options.modifiers === "transform" && /\(\?[\w-]+:/.test(pattern)) {
return false;
}
return true;
}
function transformFlags(regexpuOptions, flags) {
if (regexpuOptions.unicodeSetsFlag === "transform") {
flags = flags.replace("v", "u");
}
if (regexpuOptions.unicodeFlag === "transform") {
flags = flags.replace("u", "");
}
if (regexpuOptions.dotAllFlag === "transform") {
flags = flags.replace("s", "");
}
return flags;
}
//# sourceMappingURL=util.js.map
|