1 | 'use strict';
|
---|
2 | var fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');
|
---|
3 | var fails = require('../internals/fails');
|
---|
4 | var anObject = require('../internals/an-object');
|
---|
5 | var toInteger = require('../internals/to-integer');
|
---|
6 | var toLength = require('../internals/to-length');
|
---|
7 | var toString = require('../internals/to-string');
|
---|
8 | var requireObjectCoercible = require('../internals/require-object-coercible');
|
---|
9 | var advanceStringIndex = require('../internals/advance-string-index');
|
---|
10 | var getSubstitution = require('../internals/get-substitution');
|
---|
11 | var regExpExec = require('../internals/regexp-exec-abstract');
|
---|
12 | var wellKnownSymbol = require('../internals/well-known-symbol');
|
---|
13 |
|
---|
14 | var REPLACE = wellKnownSymbol('replace');
|
---|
15 | var max = Math.max;
|
---|
16 | var min = Math.min;
|
---|
17 |
|
---|
18 | var maybeToString = function (it) {
|
---|
19 | return it === undefined ? it : String(it);
|
---|
20 | };
|
---|
21 |
|
---|
22 | // IE <= 11 replaces $0 with the whole match, as if it was $&
|
---|
23 | // https://stackoverflow.com/questions/6024666/getting-ie-to-replace-a-regex-with-the-literal-string-0
|
---|
24 | var REPLACE_KEEPS_$0 = (function () {
|
---|
25 | // eslint-disable-next-line regexp/prefer-escape-replacement-dollar-char -- required for testing
|
---|
26 | return 'a'.replace(/./, '$0') === '$0';
|
---|
27 | })();
|
---|
28 |
|
---|
29 | // Safari <= 13.0.3(?) substitutes nth capture where n>m with an empty string
|
---|
30 | var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = (function () {
|
---|
31 | if (/./[REPLACE]) {
|
---|
32 | return /./[REPLACE]('a', '$0') === '';
|
---|
33 | }
|
---|
34 | return false;
|
---|
35 | })();
|
---|
36 |
|
---|
37 | var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {
|
---|
38 | var re = /./;
|
---|
39 | re.exec = function () {
|
---|
40 | var result = [];
|
---|
41 | result.groups = { a: '7' };
|
---|
42 | return result;
|
---|
43 | };
|
---|
44 | return ''.replace(re, '$<a>') !== '7';
|
---|
45 | });
|
---|
46 |
|
---|
47 | // @@replace logic
|
---|
48 | fixRegExpWellKnownSymbolLogic('replace', function (_, nativeReplace, maybeCallNative) {
|
---|
49 | var UNSAFE_SUBSTITUTE = REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE ? '$' : '$0';
|
---|
50 |
|
---|
51 | return [
|
---|
52 | // `String.prototype.replace` method
|
---|
53 | // https://tc39.es/ecma262/#sec-string.prototype.replace
|
---|
54 | function replace(searchValue, replaceValue) {
|
---|
55 | var O = requireObjectCoercible(this);
|
---|
56 | var replacer = searchValue == undefined ? undefined : searchValue[REPLACE];
|
---|
57 | return replacer !== undefined
|
---|
58 | ? replacer.call(searchValue, O, replaceValue)
|
---|
59 | : nativeReplace.call(toString(O), searchValue, replaceValue);
|
---|
60 | },
|
---|
61 | // `RegExp.prototype[@@replace]` method
|
---|
62 | // https://tc39.es/ecma262/#sec-regexp.prototype-@@replace
|
---|
63 | function (string, replaceValue) {
|
---|
64 | var rx = anObject(this);
|
---|
65 | var S = toString(string);
|
---|
66 |
|
---|
67 | if (
|
---|
68 | typeof replaceValue === 'string' &&
|
---|
69 | replaceValue.indexOf(UNSAFE_SUBSTITUTE) === -1 &&
|
---|
70 | replaceValue.indexOf('$<') === -1
|
---|
71 | ) {
|
---|
72 | var res = maybeCallNative(nativeReplace, rx, S, replaceValue);
|
---|
73 | if (res.done) return res.value;
|
---|
74 | }
|
---|
75 |
|
---|
76 | var functionalReplace = typeof replaceValue === 'function';
|
---|
77 | if (!functionalReplace) replaceValue = toString(replaceValue);
|
---|
78 |
|
---|
79 | var global = rx.global;
|
---|
80 | if (global) {
|
---|
81 | var fullUnicode = rx.unicode;
|
---|
82 | rx.lastIndex = 0;
|
---|
83 | }
|
---|
84 | var results = [];
|
---|
85 | while (true) {
|
---|
86 | var result = regExpExec(rx, S);
|
---|
87 | if (result === null) break;
|
---|
88 |
|
---|
89 | results.push(result);
|
---|
90 | if (!global) break;
|
---|
91 |
|
---|
92 | var matchStr = toString(result[0]);
|
---|
93 | if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
|
---|
94 | }
|
---|
95 |
|
---|
96 | var accumulatedResult = '';
|
---|
97 | var nextSourcePosition = 0;
|
---|
98 | for (var i = 0; i < results.length; i++) {
|
---|
99 | result = results[i];
|
---|
100 |
|
---|
101 | var matched = toString(result[0]);
|
---|
102 | var position = max(min(toInteger(result.index), S.length), 0);
|
---|
103 | var captures = [];
|
---|
104 | // NOTE: This is equivalent to
|
---|
105 | // captures = result.slice(1).map(maybeToString)
|
---|
106 | // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
|
---|
107 | // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
|
---|
108 | // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
|
---|
109 | for (var j = 1; j < result.length; j++) captures.push(maybeToString(result[j]));
|
---|
110 | var namedCaptures = result.groups;
|
---|
111 | if (functionalReplace) {
|
---|
112 | var replacerArgs = [matched].concat(captures, position, S);
|
---|
113 | if (namedCaptures !== undefined) replacerArgs.push(namedCaptures);
|
---|
114 | var replacement = toString(replaceValue.apply(undefined, replacerArgs));
|
---|
115 | } else {
|
---|
116 | replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
|
---|
117 | }
|
---|
118 | if (position >= nextSourcePosition) {
|
---|
119 | accumulatedResult += S.slice(nextSourcePosition, position) + replacement;
|
---|
120 | nextSourcePosition = position + matched.length;
|
---|
121 | }
|
---|
122 | }
|
---|
123 | return accumulatedResult + S.slice(nextSourcePosition);
|
---|
124 | }
|
---|
125 | ];
|
---|
126 | }, !REPLACE_SUPPORTS_NAMED_GROUPS || !REPLACE_KEEPS_$0 || REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE);
|
---|