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