67 lines
2.2 KiB
Plaintext
67 lines
2.2 KiB
Plaintext
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = _wrapRegExp;
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var _setPrototypeOf = require("setPrototypeOf");
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var _inherits = require("inherits");
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function _wrapRegExp() {
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exports.default = _wrapRegExp = function (re, groups) {
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return new BabelRegExp(re, undefined, groups);
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};
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var _super = RegExp.prototype;
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var _groups = new WeakMap();
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function BabelRegExp(re, flags, groups) {
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var _this = new RegExp(re, flags);
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_groups.set(_this, groups || _groups.get(re));
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return _setPrototypeOf(_this, BabelRegExp.prototype);
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}
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_inherits(BabelRegExp, RegExp);
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BabelRegExp.prototype.exec = function (str) {
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var result = _super.exec.call(this, str);
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if (result) {
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result.groups = buildGroups(result, this);
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var indices = result.indices;
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if (indices) indices.groups = buildGroups(indices, this);
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}
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return result;
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};
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BabelRegExp.prototype[Symbol.replace] = function (str, substitution) {
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if (typeof substitution === "string") {
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var groups = _groups.get(this);
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return _super[Symbol.replace].call(this, str, substitution.replace(/\$<([^>]+)>/g, function (_, name) {
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var group = groups[name];
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return "$" + (Array.isArray(group) ? group.join("$") : group);
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}));
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} else if (typeof substitution === "function") {
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var _this = this;
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return _super[Symbol.replace].call(this, str, function () {
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var args = arguments;
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if (typeof args[args.length - 1] !== "object") {
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args = [].slice.call(args);
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args.push(buildGroups(args, _this));
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}
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return substitution.apply(this, args);
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});
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} else {
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return _super[Symbol.replace].call(this, str, substitution);
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}
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};
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function buildGroups(result, re) {
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var g = _groups.get(re);
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return Object.keys(g).reduce(function (groups, name) {
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var i = g[name];
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if (typeof i === "number") groups[name] = result[i];else {
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var k = 0;
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while (result[i[k]] === undefined && k + 1 < i.length) k++;
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groups[name] = result[i[k]];
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}
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return groups;
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}, Object.create(null));
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}
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return _wrapRegExp.apply(this, arguments);
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}
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//# sourceMappingURL=wrapRegExp.js.map
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