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							142 lines
						
					
					
						
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				| 'use strict'; | |
| var apply = require('../internals/function-apply'); | |
| var call = require('../internals/function-call'); | |
| var uncurryThis = require('../internals/function-uncurry-this'); | |
| var fixRegExpWellKnownSymbolLogic = require('../internals/fix-regexp-well-known-symbol-logic'); | |
| var fails = require('../internals/fails'); | |
| var anObject = require('../internals/an-object'); | |
| var isCallable = require('../internals/is-callable'); | |
| var isNullOrUndefined = require('../internals/is-null-or-undefined'); | |
| var toIntegerOrInfinity = require('../internals/to-integer-or-infinity'); | |
| var toLength = require('../internals/to-length'); | |
| var toString = require('../internals/to-string'); | |
| var requireObjectCoercible = require('../internals/require-object-coercible'); | |
| var advanceStringIndex = require('../internals/advance-string-index'); | |
| var getMethod = require('../internals/get-method'); | |
| var getSubstitution = require('../internals/get-substitution'); | |
| var regExpExec = require('../internals/regexp-exec-abstract'); | |
| var wellKnownSymbol = require('../internals/well-known-symbol'); | |
| 
 | |
| var REPLACE = wellKnownSymbol('replace'); | |
| var max = Math.max; | |
| var min = Math.min; | |
| var concat = uncurryThis([].concat); | |
| var push = uncurryThis([].push); | |
| var stringIndexOf = uncurryThis(''.indexOf); | |
| var stringSlice = uncurryThis(''.slice); | |
| 
 | |
| var maybeToString = function (it) { | |
|   return it === undefined ? it : String(it); | |
| }; | |
| 
 | |
| // IE <= 11 replaces $0 with the whole match, as if it was $& | |
| // https://stackoverflow.com/questions/6024666/getting-ie-to-replace-a-regex-with-the-literal-string-0 | |
| var REPLACE_KEEPS_$0 = (function () { | |
|   // eslint-disable-next-line regexp/prefer-escape-replacement-dollar-char -- required for testing | |
|   return 'a'.replace(/./, '$0') === '$0'; | |
| })(); | |
| 
 | |
| // Safari <= 13.0.3(?) substitutes nth capture where n>m with an empty string | |
| var REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE = (function () { | |
|   if (/./[REPLACE]) { | |
|     return /./[REPLACE]('a', '$0') === ''; | |
|   } | |
|   return false; | |
| })(); | |
| 
 | |
| var REPLACE_SUPPORTS_NAMED_GROUPS = !fails(function () { | |
|   var re = /./; | |
|   re.exec = function () { | |
|     var result = []; | |
|     result.groups = { a: '7' }; | |
|     return result; | |
|   }; | |
|   // eslint-disable-next-line regexp/no-useless-dollar-replacements -- false positive | |
|   return ''.replace(re, '$<a>') !== '7'; | |
| }); | |
| 
 | |
| // @@replace logic | |
| fixRegExpWellKnownSymbolLogic('replace', function (_, nativeReplace, maybeCallNative) { | |
|   var UNSAFE_SUBSTITUTE = REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE ? '$' : '$0'; | |
| 
 | |
|   return [ | |
|     // `String.prototype.replace` method | |
|     // https://tc39.es/ecma262/#sec-string.prototype.replace | |
|     function replace(searchValue, replaceValue) { | |
|       var O = requireObjectCoercible(this); | |
|       var replacer = isNullOrUndefined(searchValue) ? undefined : getMethod(searchValue, REPLACE); | |
|       return replacer | |
|         ? call(replacer, searchValue, O, replaceValue) | |
|         : call(nativeReplace, toString(O), searchValue, replaceValue); | |
|     }, | |
|     // `RegExp.prototype[@@replace]` method | |
|     // https://tc39.es/ecma262/#sec-regexp.prototype-@@replace | |
|     function (string, replaceValue) { | |
|       var rx = anObject(this); | |
|       var S = toString(string); | |
| 
 | |
|       if ( | |
|         typeof replaceValue == 'string' && | |
|         stringIndexOf(replaceValue, UNSAFE_SUBSTITUTE) === -1 && | |
|         stringIndexOf(replaceValue, '$<') === -1 | |
|       ) { | |
|         var res = maybeCallNative(nativeReplace, rx, S, replaceValue); | |
|         if (res.done) return res.value; | |
|       } | |
| 
 | |
|       var functionalReplace = isCallable(replaceValue); | |
|       if (!functionalReplace) replaceValue = toString(replaceValue); | |
| 
 | |
|       var global = rx.global; | |
|       var fullUnicode; | |
|       if (global) { | |
|         fullUnicode = rx.unicode; | |
|         rx.lastIndex = 0; | |
|       } | |
| 
 | |
|       var results = []; | |
|       var result; | |
|       while (true) { | |
|         result = regExpExec(rx, S); | |
|         if (result === null) break; | |
| 
 | |
|         push(results, result); | |
|         if (!global) break; | |
| 
 | |
|         var matchStr = toString(result[0]); | |
|         if (matchStr === '') rx.lastIndex = advanceStringIndex(S, toLength(rx.lastIndex), fullUnicode); | |
|       } | |
| 
 | |
|       var accumulatedResult = ''; | |
|       var nextSourcePosition = 0; | |
|       for (var i = 0; i < results.length; i++) { | |
|         result = results[i]; | |
| 
 | |
|         var matched = toString(result[0]); | |
|         var position = max(min(toIntegerOrInfinity(result.index), S.length), 0); | |
|         var captures = []; | |
|         var replacement; | |
|         // NOTE: This is equivalent to | |
|         //   captures = result.slice(1).map(maybeToString) | |
|         // but for some reason `nativeSlice.call(result, 1, result.length)` (called in | |
|         // the slice polyfill when slicing native arrays) "doesn't work" in safari 9 and | |
|         // causes a crash (https://pastebin.com/N21QzeQA) when trying to debug it. | |
|         for (var j = 1; j < result.length; j++) push(captures, maybeToString(result[j])); | |
|         var namedCaptures = result.groups; | |
|         if (functionalReplace) { | |
|           var replacerArgs = concat([matched], captures, position, S); | |
|           if (namedCaptures !== undefined) push(replacerArgs, namedCaptures); | |
|           replacement = toString(apply(replaceValue, undefined, replacerArgs)); | |
|         } else { | |
|           replacement = getSubstitution(matched, S, position, captures, namedCaptures, replaceValue); | |
|         } | |
|         if (position >= nextSourcePosition) { | |
|           accumulatedResult += stringSlice(S, nextSourcePosition, position) + replacement; | |
|           nextSourcePosition = position + matched.length; | |
|         } | |
|       } | |
| 
 | |
|       return accumulatedResult + stringSlice(S, nextSourcePosition); | |
|     } | |
|   ]; | |
| }, !REPLACE_SUPPORTS_NAMED_GROUPS || !REPLACE_KEEPS_$0 || REGEXP_REPLACE_SUBSTITUTES_UNDEFINED_CAPTURE);
 |