diff --git a/lodash.js b/lodash.js index 1aa77bd7e..55c9ad611 100644 --- a/lodash.js +++ b/lodash.js @@ -150,7 +150,7 @@ reSplitDetails = /,? & /; /** Used to match non-compound words composed of alphanumeric characters. */ - var reBasicWord = /[a-zA-Z0-9]+/g; + var reAsciiWord = /[a-zA-Z0-9]+/g; /** Used to match backslashes in property paths. */ var reEscapeChar = /\\(\\)?/g; @@ -244,10 +244,10 @@ var reComboMark = RegExp(rsCombo, 'g'); /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reComplexSymbol = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); /** Used to match complex or compound words. */ - var reComplexWord = RegExp([ + var reUnicodeWord = RegExp([ rsUpper + '?' + rsLower + '+' + rsOptLowerContr + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')', rsUpperMisc + '+' + rsOptUpperContr + '(?=' + [rsBreak, rsUpper + rsLowerMisc, '$'].join('|') + ')', rsUpper + '?' + rsLowerMisc + '+' + rsOptLowerContr, @@ -257,10 +257,10 @@ ].join('|'), 'g'); /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasComplexSymbol = RegExp('[' + rsZWJ + rsAstralRange + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']'); + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']'); /** Used to detect strings that need a more robust regexp to match words. */ - var reHasComplexWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/; + var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/; /** Used to assign default `context` object properties. */ var contextProps = [ @@ -560,7 +560,7 @@ * specifying an index to search from. * * @private - * @param {Array} [array] The array to search. + * @param {Array} [array] The array to inspect. * @param {*} target The value to search for. * @returns {boolean} Returns `true` if `target` is found, else `false`. */ @@ -573,7 +573,7 @@ * This function is like `arrayIncludes` except that it accepts a comparator. * * @private - * @param {Array} [array] The array to search. + * @param {Array} [array] The array to inspect. * @param {*} target The value to search for. * @param {Function} comparator The comparator invoked per element. * @returns {boolean} Returns `true` if `target` is found, else `false`. @@ -699,13 +699,44 @@ return false; } + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * Splits an ASCII `string` into an array of its words. + * + * @private + * @param {string} The string to inspect. + * @returns {Array} Returns the words of `string`. + */ + function asciiWords(string) { + return string.match(reAsciiWord) || []; + } + /** * The base implementation of methods like `_.findKey` and `_.findLastKey`, * without support for iteratee shorthands, which iterates over `collection` * using `eachFunc`. * * @private - * @param {Array|Object} collection The collection to search. + * @param {Array|Object} collection The collection to inspect. * @param {Function} predicate The function invoked per iteration. * @param {Function} eachFunc The function to iterate over `collection`. * @returns {*} Returns the found element or its key, else `undefined`. @@ -726,7 +757,7 @@ * support for iteratee shorthands. * * @private - * @param {Array} array The array to search. + * @param {Array} array The array to inspect. * @param {Function} predicate The function invoked per iteration. * @param {number} fromIndex The index to search from. * @param {boolean} [fromRight] Specify iterating from right to left. @@ -748,7 +779,7 @@ * The base implementation of `_.indexOf` without `fromIndex` bounds checks. * * @private - * @param {Array} array The array to search. + * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @param {number} fromIndex The index to search from. * @returns {number} Returns the index of the matched value, else `-1`. @@ -772,7 +803,7 @@ * This function is like `baseIndexOf` except that it accepts a comparator. * * @private - * @param {Array} array The array to search. + * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @param {number} fromIndex The index to search from. * @param {Function} comparator The comparator invoked per element. @@ -1075,6 +1106,28 @@ return object == null ? undefined : object[key]; } + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Checks if `string` contains a word composed of Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a word is found, else `false`. + */ + function hasUnicodeWord(string) { + return reHasUnicodeWord.test(string); + } + /** * Checks if `value` is a host object in IE < 9. * @@ -1209,14 +1262,9 @@ * @returns {number} Returns the string size. */ function stringSize(string) { - if (!(string && reHasComplexSymbol.test(string))) { - return string.length; - } - var result = reComplexSymbol.lastIndex = 0; - while (reComplexSymbol.test(string)) { - result++; - } - return result; + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); } /** @@ -1227,7 +1275,9 @@ * @returns {Array} Returns the converted array. */ function stringToArray(string) { - return string.match(reComplexSymbol); + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); } /** @@ -1239,6 +1289,43 @@ */ var unescapeHtmlChar = basePropertyOf(htmlUnescapes); + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + result++; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } + + /** + * Splits a Unicode `string` into an array of its words. + * + * @private + * @param {string} The string to inspect. + * @returns {Array} Returns the words of `string`. + */ + function unicodeWords(string) { + return string.match(reUnicodeWord) || []; + } + /*--------------------------------------------------------------------------*/ /** @@ -1278,19 +1365,23 @@ * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer; */ function runInContext(context) { - context = context ? _.defaults({}, context, _.pick(root, contextProps)) : root; + context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root; /** Built-in constructor references. */ var Array = context.Array, + Date = context.Date, Error = context.Error, + Function = context.Function, Math = context.Math, + Object = context.Object, RegExp = context.RegExp, TypeError = context.TypeError; /** Used for built-in method references. */ - var arrayProto = context.Array.prototype, - objectProto = context.Object.prototype, - stringProto = context.String.prototype; + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype, + stringProto = String.prototype; /** Used to detect overreaching core-js shims. */ var coreJsData = context['__core-js_shared__']; @@ -1302,7 +1393,7 @@ }()); /** Used to resolve the decompiled source of functions. */ - var funcToString = context.Function.prototype.toString; + var funcToString = funcProto.toString; /** Used to check objects for own properties. */ var hasOwnProperty = objectProto.hasOwnProperty; @@ -1335,14 +1426,14 @@ Uint8Array = context.Uint8Array, getPrototype = overArg(Object.getPrototypeOf, Object), iteratorSymbol = Symbol ? Symbol.iterator : undefined, - objectCreate = context.Object.create, + objectCreate = Object.create, propertyIsEnumerable = objectProto.propertyIsEnumerable, splice = arrayProto.splice, spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined; /** Mocked built-ins. */ var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout, - ctxNow = context.Date && context.Date.now !== root.Date.now && context.Date.now, + ctxNow = Date && Date.now !== root.Date.now && Date.now, ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout; /* Built-in method references for those with the same name as other `lodash` methods. */ @@ -1357,9 +1448,7 @@ nativeMin = Math.min, nativeParseInt = context.parseInt, nativeRandom = Math.random, - nativeReplace = stringProto.replace, - nativeReverse = arrayProto.reverse, - nativeSplit = stringProto.split; + nativeReverse = arrayProto.reverse; /* Built-in method references that are verified to be native. */ var DataView = getNative(context, 'DataView'), @@ -1367,11 +1456,11 @@ Promise = getNative(context, 'Promise'), Set = getNative(context, 'Set'), WeakMap = getNative(context, 'WeakMap'), - nativeCreate = getNative(context.Object, 'create'); + nativeCreate = getNative(Object, 'create'); /* Used to set `toString` methods. */ var defineProperty = (function() { - var func = getNative(context.Object, 'defineProperty'), + var func = getNative(Object, 'defineProperty'), name = getNative.name; return (name && name.length > 2) ? func : undefined; @@ -2280,7 +2369,7 @@ * Gets the index at which the `key` is found in `array` of key-value pairs. * * @private - * @param {Array} array The array to search. + * @param {Array} array The array to inspect. * @param {*} key The key to search for. * @returns {number} Returns the index of the matched value, else `-1`. */ @@ -3705,7 +3794,7 @@ * The base implementation of `_.set`. * * @private - * @param {Object} object The object to query. + * @param {Object} object The object to modify. * @param {Array|string} path The path of the property to set. * @param {*} value The value to set. * @param {Function} [customizer] The function to customize path creation. @@ -4035,7 +4124,7 @@ * The base implementation of `_.update`. * * @private - * @param {Object} object The object to query. + * @param {Object} object The object to modify. * @param {Array|string} path The path of the property to update. * @param {Function} updater The function to produce the updated value. * @param {Function} [customizer] The function to customize path creation. @@ -4646,7 +4735,7 @@ return function(string) { string = toString(string); - var strSymbols = reHasComplexSymbol.test(string) + var strSymbols = hasUnicode(string) ? stringToArray(string) : undefined; @@ -4989,7 +5078,7 @@ return charsLength ? baseRepeat(chars, length) : chars; } var result = baseRepeat(chars, nativeCeil(length / stringSize(chars))); - return reHasComplexSymbol.test(chars) + return hasUnicode(chars) ? castSlice(stringToArray(result), 0, length).join('') : result.slice(0, length); } @@ -6729,7 +6818,7 @@ * @memberOf _ * @since 1.1.0 * @category Array - * @param {Array} array The array to search. + * @param {Array} array The array to inspect. * @param {Function} [predicate=_.identity] * The function invoked per iteration. * @param {number} [fromIndex=0] The index to search from. @@ -6777,7 +6866,7 @@ * @memberOf _ * @since 2.0.0 * @category Array - * @param {Array} array The array to search. + * @param {Array} array The array to inspect. * @param {Function} [predicate=_.identity] * The function invoked per iteration. * @param {number} [fromIndex=array.length-1] The index to search from. @@ -6946,7 +7035,7 @@ * @memberOf _ * @since 0.1.0 * @category Array - * @param {Array} array The array to search. + * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @param {number} [fromIndex=0] The index to search from. * @returns {number} Returns the index of the matched value, else `-1`. @@ -7131,7 +7220,7 @@ * @memberOf _ * @since 0.1.0 * @category Array - * @param {Array} array The array to search. + * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @param {number} [fromIndex=array.length-1] The index to search from. * @returns {number} Returns the index of the matched value, else `-1`. @@ -7509,7 +7598,7 @@ * @memberOf _ * @since 4.0.0 * @category Array - * @param {Array} array The array to search. + * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @returns {number} Returns the index of the matched value, else `-1`. * @example @@ -7588,7 +7677,7 @@ * @memberOf _ * @since 4.0.0 * @category Array - * @param {Array} array The array to search. + * @param {Array} array The array to inspect. * @param {*} value The value to search for. * @returns {number} Returns the index of the matched value, else `-1`. * @example @@ -8717,7 +8806,7 @@ * @memberOf _ * @since 0.1.0 * @category Collection - * @param {Array|Object} collection The collection to search. + * @param {Array|Object} collection The collection to inspect. * @param {Function} [predicate=_.identity] * The function invoked per iteration. * @param {number} [fromIndex=0] The index to search from. @@ -8755,7 +8844,7 @@ * @memberOf _ * @since 2.0.0 * @category Collection - * @param {Array|Object} collection The collection to search. + * @param {Array|Object} collection The collection to inspect. * @param {Function} [predicate=_.identity] * The function invoked per iteration. * @param {number} [fromIndex=collection.length-1] The index to search from. @@ -8950,7 +9039,7 @@ * @memberOf _ * @since 0.1.0 * @category Collection - * @param {Array|Object|string} collection The collection to search. + * @param {Array|Object|string} collection The collection to inspect. * @param {*} value The value to search for. * @param {number} [fromIndex=0] The index to search from. * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. @@ -9383,7 +9472,7 @@ * @memberOf _ * @since 0.1.0 * @category Collection - * @param {Array|Object} collection The collection to inspect. + * @param {Array|Object|string} collection The collection to inspect. * @returns {number} Returns the collection size. * @example * @@ -12374,7 +12463,7 @@ * @memberOf _ * @since 1.1.0 * @category Object - * @param {Object} object The object to search. + * @param {Object} object The object to inspect. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {string|undefined} Returns the key of the matched element, * else `undefined`. @@ -12413,7 +12502,7 @@ * @memberOf _ * @since 2.0.0 * @category Object - * @param {Object} object The object to search. + * @param {Object} object The object to inspect. * @param {Function} [predicate=_.identity] The function invoked per iteration. * @returns {string|undefined} Returns the key of the matched element, * else `undefined`. @@ -13682,7 +13771,7 @@ * @memberOf _ * @since 3.0.0 * @category String - * @param {string} [string=''] The string to search. + * @param {string} [string=''] The string to inspect. * @param {string} [target] The string to search for. * @param {number} [position=string.length] The position to search up to. * @returns {boolean} Returns `true` if `string` ends with `target`, @@ -14038,7 +14127,7 @@ var args = arguments, string = toString(args[0]); - return args.length < 3 ? string : nativeReplace.call(string, args[1], args[2]); + return args.length < 3 ? string : string.replace(args[1], args[2]); } /** @@ -14099,11 +14188,11 @@ (separator != null && !isRegExp(separator)) )) { separator = baseToString(separator); - if (separator == '' && reHasComplexSymbol.test(string)) { + if (!separator && hasUnicode(string)) { return castSlice(stringToArray(string), 0, limit); } } - return nativeSplit.call(string, separator, limit); + return string.split(separator, limit); } /** @@ -14138,7 +14227,7 @@ * @memberOf _ * @since 3.0.0 * @category String - * @param {string} [string=''] The string to search. + * @param {string} [string=''] The string to inspect. * @param {string} [target] The string to search for. * @param {number} [position=0] The position to search from. * @returns {boolean} Returns `true` if `string` starts with `target`, @@ -14575,7 +14664,7 @@ string = toString(string); var strLength = string.length; - if (reHasComplexSymbol.test(string)) { + if (hasUnicode(string)) { var strSymbols = stringToArray(string); strLength = strSymbols.length; } @@ -14712,7 +14801,7 @@ pattern = guard ? undefined : pattern; if (pattern === undefined) { - pattern = reHasComplexWord.test(string) ? reComplexWord : reBasicWord; + return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string); } return string.match(pattern) || []; }