source: frontend/node_modules/core-js/modules/es.string.replace.js

Last change on this file was 9af201e, checked in by MBK <marija.karapandzova@…>, 12 days ago

Fix frontend appearance

  • Property mode set to 100644
File size: 5.7 KB
Line 
1'use strict';
2var apply = require('../internals/function-apply');
3var call = require('../internals/function-call');
4var uncurryThis = require('../internals/function-uncurry-this');
5var fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic');
6var fails = require('../internals/fails');
7var anObject = require('../internals/an-object');
8var isCallable = require('../internals/is-callable');
9var isObject = require('../internals/is-object');
10var toIntegerOrInfinity = require('../internals/to-integer-or-infinity');
11var toLength = require('../internals/to-length');
12var toString = require('../internals/to-string');
13var requireObjectCoercible = require('../internals/require-object-coercible');
14var advanceStringIndex = require('../internals/advance-string-index');
15var getMethod = require('../internals/get-method');
16var getSubstitution = require('../internals/get-substitution');
17var getRegExpFlags = require('../internals/regexp-get-flags');
18var regExpExec = require('../internals/regexp-exec-abstract');
19var wellKnownSymbol = require('../internals/well-known-symbol');
20
21var REPLACE = wellKnownSymbol('replace');
22var max = Math.max;
23var min = Math.min;
24var concat = uncurryThis([].concat);
25var push = uncurryThis([].push);
26var stringIndexOf = uncurryThis(''.indexOf);
27var stringSlice = uncurryThis(''.slice);
28
29var maybeToString = function (it) {
30 return it === undefined ? it : String(it);
31};
32
33// IE <= 11 replaces $0 with the whole match, as if it was $&
34// https://stackoverflow.com/questions/6024666/getting-ie-to-replace-a-regex-with-the-literal-string-0
35var REPLACE_KEEPS_$0 = (function () {
36 // eslint-disable-next-line regexp/prefer-escape-replacement-dollar-char -- required for testing
37 return 'a'.replace(/./, '$0') === '$0';
38})();
39
40// Safari <= 13.0.3(?) substitutes nth capture where n>m with an empty string
41var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = (function () {
42 if (/./[REPLACE]) {
43 return /./[REPLACE]('a', '$0') === '';
44 }
45 return false;
46})();
47
48var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () {
49 var re = /./;
50 re.exec = function () {
51 var result = [];
52 result.groups = { a: '7' };
53 return result;
54 };
55 // eslint-disable-next-line regexp/no-useless-dollar-replacements -- false positive
56 return ''.replace(re, '$<a>') !== '7';
57});
58
59// @@replace logic
60fixRegExpWellKnownSymbolLogic('replace', function (_, nativeReplace, maybeCallNative) {
61 var UNSAFE_SUBSTITUTE = REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE ? '$' : '$0';
62
63 return [
64 // `String.prototype.replace` method
65 // https://tc39.es/ecma262/#sec-string.prototype.replace
66 function replace(searchValue, replaceValue) {
67 var O = requireObjectCoercible(this);
68 var replacer = isObject(searchValue) ? getMethod(searchValue, REPLACE) : undefined;
69 return replacer
70 ? call(replacer, searchValue, O, replaceValue)
71 : call(nativeReplace, toString(O), searchValue, replaceValue);
72 },
73 // `RegExp.prototype[@@replace]` method
74 // https://tc39.es/ecma262/#sec-regexp.prototype-@@replace
75 function (string, replaceValue) {
76 var rx = anObject(this);
77 var S = toString(string);
78
79 var functionalReplace = isCallable(replaceValue);
80 if (!functionalReplace) replaceValue = toString(replaceValue);
81 var flags = toString(getRegExpFlags(rx));
82
83 if (
84 typeof replaceValue == 'string' &&
85 !~stringIndexOf(replaceValue, UNSAFE_SUBSTITUTE) &&
86 !~stringIndexOf(replaceValue, '$<') &&
87 !~stringIndexOf(flags, 'y')
88 ) {
89 var res = maybeCallNative(nativeReplace, rx, S, replaceValue);
90 if (res.done) return res.value;
91 }
92
93 var global = !!~stringIndexOf(flags, 'g');
94 var fullUnicode;
95 if (global) {
96 fullUnicode = !!~stringIndexOf(flags, 'u') || !!~stringIndexOf(flags, 'v');
97 rx.lastIndex = 0;
98 }
99
100 var results = [];
101 var result;
102 while (true) {
103 result = regExpExec(rx, S);
104 if (result === null) break;
105
106 push(results, result);
107 if (!global) break;
108
109 var matchStr = toString(result[0]);
110 if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode);
111 }
112
113 var accumulatedResult = '';
114 var nextSourcePosition = 0;
115 for (var i = 0; i < results.length; i++) {
116 result = results[i];
117
118 var matched = toString(result[0]);
119 var position = max(min(toIntegerOrInfinity(result.index), S.length), 0);
120 var captures = [];
121 var replacement;
122 // NOTE: This is equivalent to
123 // captures = result.slice(1).map(maybeToString)
124 // but for some reason `nativeSlice.call(result, 1, result.length)` (called in
125 // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and
126 // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it.
127 for (var j = 1; j < result.length; j++) push(captures, maybeToString(result[j]));
128 var namedCaptures = result.groups;
129 if (functionalReplace) {
130 var replacerArgs = concat([matched], captures, position, S);
131 if (namedCaptures !== undefined) push(replacerArgs, namedCaptures);
132 replacement = toString(apply(replaceValue, undefined, replacerArgs));
133 } else {
134 replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue);
135 }
136 if (position >= nextSourcePosition) {
137 accumulatedResult += stringSlice(S, nextSourcePosition, position) + replacement;
138 nextSourcePosition = position + matched.length;
139 }
140 }
141
142 return accumulatedResult + stringSlice(S, nextSourcePosition);
143 }
144 ];
145}, !REPLACE_SUPPORTS_NAMED_GROUPS || !REPLACE_KEEPS_$0 || REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE);
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