mirror of https://github.com/jkjoy/sunpeiwen.git
50 lines
2.1 KiB
JavaScript
50 lines
2.1 KiB
JavaScript
import _typeof from "./typeof.js";
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import setPrototypeOf from "./setPrototypeOf.js";
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import inherits from "./inherits.js";
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export default function _wrapRegExp() {
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_wrapRegExp = function _wrapRegExp(re, groups) {
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return new BabelRegExp(re, void 0, groups);
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};
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var _super = RegExp.prototype,
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_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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return _groups.set(_this, groups || _groups.get(re)), setPrototypeOf(_this, BabelRegExp.prototype);
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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 ("number" == typeof i) groups[name] = result[i];else {
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for (var k = 0; void 0 === result[i[k]] && 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 inherits(BabelRegExp, RegExp), 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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indices && (indices.groups = buildGroups(indices, this));
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}
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return result;
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}, BabelRegExp.prototype[Symbol.replace] = function (str, substitution) {
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if ("string" == typeof substitution) {
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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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}
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if ("function" == typeof substitution) {
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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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return "object" != _typeof(args[args.length - 1]) && (args = [].slice.call(args)).push(buildGroups(args, _this)), substitution.apply(this, args);
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});
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}
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return _super[Symbol.replace].call(this, str, substitution);
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}, _wrapRegExp.apply(this, arguments);
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} |