30 lines
1.0 KiB
JavaScript
30 lines
1.0 KiB
JavaScript
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'use strict';
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// https://tc39.github.io/String.prototype.matchAll/
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var $export = require('./_export')
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, defined = require('./_defined')
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, toLength = require('./_to-length')
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, isRegExp = require('./_is-regexp')
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, getFlags = require('./_flags')
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, RegExpProto = RegExp.prototype;
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var $RegExpStringIterator = function(regexp, string){
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this._r = regexp;
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this._s = string;
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};
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require('./_iter-create')($RegExpStringIterator, 'RegExp String', function next(){
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var match = this._r.exec(this._s);
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return {value: match, done: match === null};
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});
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$export($export.P, 'String', {
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matchAll: function matchAll(regexp){
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defined(this);
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if(!isRegExp(regexp))throw TypeError(regexp + ' is not a regexp!');
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var S = String(this)
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, flags = 'flags' in RegExpProto ? String(regexp.flags) : getFlags.call(regexp)
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, rx = new RegExp(regexp.source, ~flags.indexOf('g') ? flags : 'g' + flags);
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rx.lastIndex = toLength(regexp.lastIndex);
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return new $RegExpStringIterator(rx, S);
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}
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});
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