diff options
Diffstat (limited to 'node_modules/core-js/modules/es6.regexp.split.js')
| -rw-r--r-- | node_modules/core-js/modules/es6.regexp.split.js | 72 |
1 files changed, 7 insertions, 65 deletions
diff --git a/node_modules/core-js/modules/es6.regexp.split.js b/node_modules/core-js/modules/es6.regexp.split.js index a991a3fc9..0607fb064 100644 --- a/node_modules/core-js/modules/es6.regexp.split.js +++ b/node_modules/core-js/modules/es6.regexp.split.js @@ -1,70 +1,12 @@ // @@split logic -require('./_fix-re-wks')('split', 2, function(defined, SPLIT, $split){ - 'use strict'; - var isRegExp = require('./_is-regexp') - , _split = $split - , $push = [].push - , $SPLIT = 'split' - , LENGTH = 'length' - , LAST_INDEX = 'lastIndex'; - if( - 'abbc'[$SPLIT](/(b)*/)[1] == 'c' || - 'test'[$SPLIT](/(?:)/, -1)[LENGTH] != 4 || - 'ab'[$SPLIT](/(?:ab)*/)[LENGTH] != 2 || - '.'[$SPLIT](/(.?)(.?)/)[LENGTH] != 4 || - '.'[$SPLIT](/()()/)[LENGTH] > 1 || - ''[$SPLIT](/.?/)[LENGTH] - ){ - var NPCG = /()??/.exec('')[1] === undefined; // nonparticipating capturing group - // based on es5-shim implementation, need to rework it - $split = function(separator, limit){ - var string = String(this); - if(separator === undefined && limit === 0)return []; - // If `separator` is not a regex, use native split - if(!isRegExp(separator))return _split.call(string, separator, limit); - var output = []; - var flags = (separator.ignoreCase ? 'i' : '') + - (separator.multiline ? 'm' : '') + - (separator.unicode ? 'u' : '') + - (separator.sticky ? 'y' : ''); - var lastLastIndex = 0; - var splitLimit = limit === undefined ? 4294967295 : limit >>> 0; - // Make `global` and avoid `lastIndex` issues by working with a copy - var separatorCopy = new RegExp(separator.source, flags + 'g'); - var separator2, match, lastIndex, lastLength, i; - // Doesn't need flags gy, but they don't hurt - if(!NPCG)separator2 = new RegExp('^' + separatorCopy.source + '$(?!\\s)', flags); - while(match = separatorCopy.exec(string)){ - // `separatorCopy.lastIndex` is not reliable cross-browser - lastIndex = match.index + match[0][LENGTH]; - if(lastIndex > lastLastIndex){ - output.push(string.slice(lastLastIndex, match.index)); - // Fix browsers whose `exec` methods don't consistently return `undefined` for NPCG - if(!NPCG && match[LENGTH] > 1)match[0].replace(separator2, function(){ - for(i = 1; i < arguments[LENGTH] - 2; i++)if(arguments[i] === undefined)match[i] = undefined; - }); - if(match[LENGTH] > 1 && match.index < string[LENGTH])$push.apply(output, match.slice(1)); - lastLength = match[0][LENGTH]; - lastLastIndex = lastIndex; - if(output[LENGTH] >= splitLimit)break; - } - if(separatorCopy[LAST_INDEX] === match.index)separatorCopy[LAST_INDEX]++; // Avoid an infinite loop - } - if(lastLastIndex === string[LENGTH]){ - if(lastLength || !separatorCopy.test(''))output.push(''); - } else output.push(string.slice(lastLastIndex)); - return output[LENGTH] > splitLimit ? output.slice(0, splitLimit) : output; - }; - // Chakra, V8 - } else if('0'[$SPLIT](undefined, 0)[LENGTH]){ - $split = function(separator, limit){ - return separator === undefined && limit === 0 ? [] : _split.call(this, separator, limit); - }; - } +require('./$.fix-re-wks')('split', 2, function(defined, SPLIT, $split){ // 21.1.3.17 String.prototype.split(separator, limit) - return [function split(separator, limit){ + return function split(separator, limit){ + 'use strict'; var O = defined(this) , fn = separator == undefined ? undefined : separator[SPLIT]; - return fn !== undefined ? fn.call(separator, O, limit) : $split.call(String(O), separator, limit); - }, $split]; + return fn !== undefined + ? fn.call(separator, O, limit) + : $split.call(String(O), separator, limit); + }; });
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