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Diffstat (limited to 'school/node_modules/string-strip-html/dist/string-strip-html.dev.umd.js')
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diff --git a/school/node_modules/string-strip-html/dist/string-strip-html.dev.umd.js b/school/node_modules/string-strip-html/dist/string-strip-html.dev.umd.js new file mode 100644 index 0000000..dfe6e9d --- /dev/null +++ b/school/node_modules/string-strip-html/dist/string-strip-html.dev.umd.js @@ -0,0 +1,5508 @@ +/** + * @name string-strip-html + * @fileoverview Strips HTML tags from strings. No parser, accepts mixed sources. + * @version 8.3.0 + * @author Roy Revelt, Codsen Ltd + * @license MIT + * {@link https://codsen.com/os/string-strip-html/} + */ + +(function (global, factory) { +typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : +typeof define === 'function' && define.amd ? define(['exports'], factory) : +(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.stringStripHtml = {})); +}(this, (function (exports) { 'use strict'; + +var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {}; + +/** + * lodash (Custom Build) <https://lodash.com/> + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors <https://jquery.org/> + * Released under MIT license <https://lodash.com/license> + * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE> + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** `Object#toString` result references. */ +var objectTag = '[object Object]'; + +/** + * Checks if `value` is a host object in IE < 9. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a host object, else `false`. + */ +function isHostObject$1(value) { + // Many host objects are `Object` objects that can coerce to strings + // despite having improperly defined `toString` methods. + var result = false; + if (value != null && typeof value.toString != 'function') { + try { + result = !!(value + ''); + } catch (e) {} + } + return result; +} + +/** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ +function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; +} + +/** Used for built-in method references. */ +var funcProto$1 = Function.prototype, + objectProto$2 = Object.prototype; + +/** Used to resolve the decompiled source of functions. */ +var funcToString$1 = funcProto$1.toString; + +/** Used to check objects for own properties. */ +var hasOwnProperty$1 = objectProto$2.hasOwnProperty; + +/** Used to infer the `Object` constructor. */ +var objectCtorString = funcToString$1.call(Object); + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString$2 = objectProto$2.toString; + +/** Built-in value references. */ +var getPrototype = overArg(Object.getPrototypeOf, Object); + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike$2(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ +function isPlainObject(value) { + if (!isObjectLike$2(value) || + objectToString$2.call(value) != objectTag || isHostObject$1(value)) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty$1.call(proto, 'constructor') && proto.constructor; + return (typeof Ctor == 'function' && + Ctor instanceof Ctor && funcToString$1.call(Ctor) == objectCtorString); +} + +var lodash_isplainobject = isPlainObject; + +/** + * lodash (Custom Build) <https://lodash.com/> + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors <https://jquery.org/> + * Released under MIT license <https://lodash.com/license> + * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE> + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** Used as references for various `Number` constants. */ +var INFINITY = 1 / 0; + +/** `Object#toString` result references. */ +var symbolTag = '[object Symbol]'; + +/** Used to match leading and trailing whitespace. */ +var reTrim = /^\s+|\s+$/g; + +/** Used to compose unicode character classes. */ +var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23', + rsComboSymbolsRange = '\\u20d0-\\u20f0', + rsVarRange = '\\ufe0e\\ufe0f'; + +/** Used to compose unicode capture groups. */ +var rsAstral = '[' + rsAstralRange + ']', + rsCombo = '[' + rsComboMarksRange + rsComboSymbolsRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsZWJ = '\\u200d'; + +/** Used to compose unicode regexes. */ +var reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + +/** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ +var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, '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 reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']'); + +/** Detect free variable `global` from Node.js. */ +var freeGlobal$1 = typeof commonjsGlobal == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal; + +/** Detect free variable `self`. */ +var freeSelf$1 = typeof self == 'object' && self && self.Object === Object && self; + +/** Used as a reference to the global object. */ +var root$1 = freeGlobal$1 || freeSelf$1 || Function('return this')(); + +/** + * 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(''); +} + +/** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @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. + * @returns {number} Returns the index of the matched value, else `-1`. + */ +function baseFindIndex$1(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; +} + +/** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @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`. + */ +function baseIndexOf$1(array, value, fromIndex) { + if (value !== value) { + return baseFindIndex$1(array, baseIsNaN$1, fromIndex); + } + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; +} + +/** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ +function baseIsNaN$1(value) { + return value !== value; +} + +/** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ +function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf$1(chrSymbols, strSymbols[index], 0) > -1) {} + return index; +} + +/** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ +function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf$1(chrSymbols, strSymbols[index], 0) > -1) {} + return index; +} + +/** + * 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); +} + +/** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ +function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); +} + +/** + * 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) || []; +} + +/** Used for built-in method references. */ +var objectProto$1 = Object.prototype; + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString$1 = objectProto$1.toString; + +/** Built-in value references. */ +var Symbol = root$1.Symbol; + +/** Used to convert symbols to primitives and strings. */ +var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + +/** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ +function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; +} + +/** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ +function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; +} + +/** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ +function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike$1(value) { + return !!value && typeof value == 'object'; +} + +/** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ +function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike$1(value) && objectToString$1.call(value) == symbolTag); +} + +/** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {string} Returns the string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ +function toString(value) { + return value == null ? '' : baseToString(value); +} + +/** + * Removes leading and trailing whitespace or specified characters from `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to trim. + * @param {string} [chars=whitespace] The characters to trim. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the trimmed string. + * @example + * + * _.trim(' abc '); + * // => 'abc' + * + * _.trim('-_-abc-_-', '_-'); + * // => 'abc' + * + * _.map([' foo ', ' bar '], _.trim); + * // => ['foo', 'bar'] + */ +function trim(string, chars, guard) { + string = toString(string); + if (string && (guard || chars === undefined)) { + return string.replace(reTrim, ''); + } + if (!string || !(chars = baseToString(chars))) { + return string; + } + var strSymbols = stringToArray(string), + chrSymbols = stringToArray(chars), + start = charsStartIndex(strSymbols, chrSymbols), + end = charsEndIndex(strSymbols, chrSymbols) + 1; + + return castSlice(strSymbols, start, end).join(''); +} + +var lodash_trim = trim; + +/** + * lodash (Custom Build) <https://lodash.com/> + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors <https://jquery.org/> + * Released under MIT license <https://lodash.com/license> + * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE> + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +/** Used as the size to enable large array optimizations. */ +var LARGE_ARRAY_SIZE = 200; + +/** Used to stand-in for `undefined` hash values. */ +var HASH_UNDEFINED = '__lodash_hash_undefined__'; + +/** Used as references for various `Number` constants. */ +var MAX_SAFE_INTEGER = 9007199254740991; + +/** `Object#toString` result references. */ +var funcTag = '[object Function]', + genTag = '[object GeneratorFunction]'; + +/** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ +var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; + +/** Used to detect host constructors (Safari). */ +var reIsHostCtor = /^\[object .+?Constructor\]$/; + +/** Detect free variable `global` from Node.js. */ +var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal; + +/** Detect free variable `self`. */ +var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + +/** Used as a reference to the global object. */ +var root = freeGlobal || freeSelf || Function('return this')(); + +/** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ +function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); +} + +/** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ +function arrayIncludes(array, value) { + var length = array ? array.length : 0; + return !!length && baseIndexOf(array, value, 0) > -1; +} + +/** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @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`. + */ +function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array ? array.length : 0; + + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; +} + +/** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ +function arrayMap(array, iteratee) { + var index = -1, + length = array ? array.length : 0, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; +} + +/** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @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. + * @returns {number} Returns the index of the matched value, else `-1`. + */ +function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; +} + +/** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @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`. + */ +function baseIndexOf(array, value, fromIndex) { + if (value !== value) { + return baseFindIndex(array, baseIsNaN, fromIndex); + } + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; +} + +/** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ +function baseIsNaN(value) { + return value !== value; +} + +/** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ +function baseUnary(func) { + return function(value) { + return func(value); + }; +} + +/** + * Checks if a cache value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ +function cacheHas(cache, key) { + return cache.has(key); +} + +/** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ +function getValue(object, key) { + return object == null ? undefined : object[key]; +} + +/** + * Checks if `value` is a host object in IE < 9. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a host object, else `false`. + */ +function isHostObject(value) { + // Many host objects are `Object` objects that can coerce to strings + // despite having improperly defined `toString` methods. + var result = false; + if (value != null && typeof value.toString != 'function') { + try { + result = !!(value + ''); + } catch (e) {} + } + return result; +} + +/** Used for built-in method references. */ +var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; + +/** Used to detect overreaching core-js shims. */ +var coreJsData = root['__core-js_shared__']; + +/** Used to detect methods masquerading as native. */ +var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; +}()); + +/** Used to resolve the decompiled source of functions. */ +var funcToString = funcProto.toString; + +/** Used to check objects for own properties. */ +var hasOwnProperty = objectProto.hasOwnProperty; + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** Used to detect if a method is native. */ +var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' +); + +/** Built-in value references. */ +var splice = arrayProto.splice; + +/* Built-in method references for those with the same name as other `lodash` methods. */ +var nativeMax = Math.max; + +/* Built-in method references that are verified to be native. */ +var Map = getNative(root, 'Map'), + nativeCreate = getNative(Object, 'create'); + +/** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ +function Hash(entries) { + var index = -1, + length = entries ? entries.length : 0; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } +} + +/** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ +function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; +} + +/** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ +function hashDelete(key) { + return this.has(key) && delete this.__data__[key]; +} + +/** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ +function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; +} + +/** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ +function hashHas(key) { + var data = this.__data__; + return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key); +} + +/** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ +function hashSet(key, value) { + var data = this.__data__; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; +} + +// Add methods to `Hash`. +Hash.prototype.clear = hashClear; +Hash.prototype['delete'] = hashDelete; +Hash.prototype.get = hashGet; +Hash.prototype.has = hashHas; +Hash.prototype.set = hashSet; + +/** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ +function ListCache(entries) { + var index = -1, + length = entries ? entries.length : 0; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } +} + +/** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ +function listCacheClear() { + this.__data__ = []; +} + +/** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ +function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + return false; + } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + return true; +} + +/** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ +function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; +} + +/** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ +function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; +} + +/** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ +function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; +} + +// Add methods to `ListCache`. +ListCache.prototype.clear = listCacheClear; +ListCache.prototype['delete'] = listCacheDelete; +ListCache.prototype.get = listCacheGet; +ListCache.prototype.has = listCacheHas; +ListCache.prototype.set = listCacheSet; + +/** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ +function MapCache(entries) { + var index = -1, + length = entries ? entries.length : 0; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } +} + +/** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ +function mapCacheClear() { + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; +} + +/** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ +function mapCacheDelete(key) { + return getMapData(this, key)['delete'](key); +} + +/** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ +function mapCacheGet(key) { + return getMapData(this, key).get(key); +} + +/** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ +function mapCacheHas(key) { + return getMapData(this, key).has(key); +} + +/** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ +function mapCacheSet(key, value) { + getMapData(this, key).set(key, value); + return this; +} + +// Add methods to `MapCache`. +MapCache.prototype.clear = mapCacheClear; +MapCache.prototype['delete'] = mapCacheDelete; +MapCache.prototype.get = mapCacheGet; +MapCache.prototype.has = mapCacheHas; +MapCache.prototype.set = mapCacheSet; + +/** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ +function SetCache(values) { + var index = -1, + length = values ? values.length : 0; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } +} + +/** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ +function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; +} + +/** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ +function setCacheHas(value) { + return this.__data__.has(value); +} + +// Add methods to `SetCache`. +SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; +SetCache.prototype.has = setCacheHas; + +/** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @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`. + */ +function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; +} + +/** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ +function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; +} + +/** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ +function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); +} + +/** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ +function baseRest(func, start) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = array; + return apply(func, this, otherArgs); + }; +} + +/** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ +function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; +} + +/** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ +function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; +} + +/** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ +function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); +} + +/** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ +function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); +} + +/** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to process. + * @returns {string} Returns the source code. + */ +function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; +} + +/** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ +var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; +}); + +/** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ +function eq(value, other) { + return value === other || (value !== value && other !== other); +} + +/** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ +function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); +} + +/** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ +function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); +} + +/** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ +function isFunction(value) { + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 8-9 which returns 'object' for typed array and other constructors. + var tag = isObject(value) ? objectToString.call(value) : ''; + return tag == funcTag || tag == genTag; +} + +/** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ +function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; +} + +/** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. 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+ +var numericUnicodeMap = {}; + +Object.defineProperty(numericUnicodeMap,"__esModule",{value:true});numericUnicodeMap.numericUnicodeMap={0:65533,128:8364,130:8218,131:402,132:8222,133:8230,134:8224,135:8225,136:710,137:8240,138:352,139:8249,140:338,142:381,145:8216,146:8217,147:8220,148:8221,149:8226,150:8211,151:8212,152:732,153:8482,154:353,155:8250,156:339,158:382,159:376}; + +var surrogatePairs = {}; + +Object.defineProperty(surrogatePairs,"__esModule",{value:true});surrogatePairs.fromCodePoint=String.fromCodePoint||function(astralCodePoint){return String.fromCharCode(Math.floor((astralCodePoint-65536)/1024)+55296,(astralCodePoint-65536)%1024+56320)};surrogatePairs.getCodePoint=String.prototype.codePointAt?function(input,position){return input.codePointAt(position)}:function(input,position){return (input.charCodeAt(position)-55296)*1024+input.charCodeAt(position+1)-56320+65536};surrogatePairs.highSurrogateFrom=55296;surrogatePairs.highSurrogateTo=56319; + +var __assign = (commonjsGlobal && commonjsGlobal.__assign) || function () { + __assign = Object.assign || function(t) { + for (var s, i = 1, n = arguments.length; i < n; i++) { + s = arguments[i]; + for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) + t[p] = s[p]; + } + return t; + }; + return __assign.apply(this, arguments); +}; +Object.defineProperty(lib, "__esModule", { value: true }); +var named_references_1 = namedReferences; +var numeric_unicode_map_1 = numericUnicodeMap; +var surrogate_pairs_1 = surrogatePairs; +var allNamedReferences = __assign(__assign({}, named_references_1.namedReferences), { all: named_references_1.namedReferences.html5 }); +var encodeRegExps = { + specialChars: /[<>'"&]/g, + nonAscii: /(?:[<>'"&\u0080-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])/g, + nonAsciiPrintable: /(?:[<>'"&\x01-\x08\x11-\x15\x17-\x1F\x7f-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])/g, + extensive: /(?:[\x01-\x0c\x0e-\x1f\x21-\x2c\x2e-\x2f\x3a-\x40\x5b-\x60\x7b-\x7d\x7f-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])/g +}; +var defaultEncodeOptions = { + mode: 'specialChars', + level: 'all', + numeric: 'decimal' +}; +/** Encodes all the necessary (specified by `level`) characters in the text */ +function encode(text, _a) { + var _b = _a === void 0 ? defaultEncodeOptions : _a, _c = _b.mode, mode = _c === void 0 ? 'specialChars' : _c, _d = _b.numeric, numeric = _d === void 0 ? 'decimal' : _d, _e = _b.level, level = _e === void 0 ? 'all' : _e; + if (!text) { + return ''; + } + var encodeRegExp = encodeRegExps[mode]; + var references = allNamedReferences[level].characters; + var isHex = numeric === 'hexadecimal'; + encodeRegExp.lastIndex = 0; + var _b = encodeRegExp.exec(text); + var _c; + if (_b) { + _c = ''; + var _d = 0; + do { + if (_d !== _b.index) { + _c += text.substring(_d, _b.index); + } + var _e = _b[0]; + var result_1 = references[_e]; + if (!result_1) { + var code_1 = _e.length > 1 ? surrogate_pairs_1.getCodePoint(_e, 0) : _e.charCodeAt(0); + result_1 = (isHex ? '&#x' + code_1.toString(16) : '&#' + code_1) + ';'; + } + _c += result_1; + _d = _b.index + _e.length; + } while ((_b = encodeRegExp.exec(text))); + if (_d !== text.length) { + _c += text.substring(_d); + } + } + else { + _c = + text; + } + return _c; +} +lib.encode = encode; +var defaultDecodeOptions = { + scope: 'body', + level: 'all' +}; +var strict = /&(?:#\d+|#[xX][\da-fA-F]+|[0-9a-zA-Z]+);/g; +var attribute = /&(?:#\d+|#[xX][\da-fA-F]+|[0-9a-zA-Z]+)[;=]?/g; +var baseDecodeRegExps = { + xml: { + strict: strict, + attribute: attribute, + body: named_references_1.bodyRegExps.xml + }, + html4: { + strict: strict, + attribute: attribute, + body: named_references_1.bodyRegExps.html4 + }, + html5: { + strict: strict, + attribute: attribute, + body: named_references_1.bodyRegExps.html5 + } +}; +var decodeRegExps = __assign(__assign({}, baseDecodeRegExps), { all: baseDecodeRegExps.html5 }); +var fromCharCode = String.fromCharCode; +var outOfBoundsChar = fromCharCode(65533); +var defaultDecodeEntityOptions = { + level: 'all' +}; +/** Decodes a single entity */ +function decodeEntity(entity, _a) { + var _b = (_a === void 0 ? defaultDecodeEntityOptions : _a).level, level = _b === void 0 ? 'all' : _b; + if (!entity) { + return ''; + } + var _b = entity; + entity[entity.length - 1]; + { + var decodeResultByReference_1 = allNamedReferences[level].entities[entity]; + if (decodeResultByReference_1) { + _b = decodeResultByReference_1; + } + else if (entity[0] === '&' && entity[1] === '#') { + var decodeSecondChar_1 = entity[2]; + var decodeCode_1 = decodeSecondChar_1 == 'x' || decodeSecondChar_1 == 'X' + ? parseInt(entity.substr(3), 16) + : parseInt(entity.substr(2)); + _b = + decodeCode_1 >= 0x10ffff + ? outOfBoundsChar + : decodeCode_1 > 65535 + ? surrogate_pairs_1.fromCodePoint(decodeCode_1) + : fromCharCode(numeric_unicode_map_1.numericUnicodeMap[decodeCode_1] || decodeCode_1); + } + } + return _b; +} +lib.decodeEntity = decodeEntity; +/** Decodes all entities in the text */ +function decode(text, _a) { + var decodeSecondChar_1 = _a === void 0 ? defaultDecodeOptions : _a, decodeCode_1 = decodeSecondChar_1.level, level = decodeCode_1 === void 0 ? 'all' : decodeCode_1, _b = decodeSecondChar_1.scope, scope = _b === void 0 ? level === 'xml' ? 'strict' : 'body' : _b; + if (!text) { + return ''; + } + var decodeRegExp = decodeRegExps[level][scope]; + var references = allNamedReferences[level].entities; + var isAttribute = scope === 'attribute'; + var isStrict = scope === 'strict'; + decodeRegExp.lastIndex = 0; + var replaceMatch_1 = decodeRegExp.exec(text); + var replaceResult_1; + if (replaceMatch_1) { + replaceResult_1 = ''; + var replaceLastIndex_1 = 0; + do { + if (replaceLastIndex_1 !== replaceMatch_1.index) { + replaceResult_1 += text.substring(replaceLastIndex_1, replaceMatch_1.index); + } + var replaceInput_1 = replaceMatch_1[0]; + var decodeResult_1 = replaceInput_1; + var decodeEntityLastChar_2 = replaceInput_1[replaceInput_1.length - 1]; + if (isAttribute + && decodeEntityLastChar_2 === '=') { + decodeResult_1 = replaceInput_1; + } + else if (isStrict + && decodeEntityLastChar_2 !== ';') { + decodeResult_1 = replaceInput_1; + } + else { + var decodeResultByReference_2 = references[replaceInput_1]; + if (decodeResultByReference_2) { + decodeResult_1 = decodeResultByReference_2; + } + else if (replaceInput_1[0] === '&' && replaceInput_1[1] === '#') { + var decodeSecondChar_2 = replaceInput_1[2]; + var decodeCode_2 = decodeSecondChar_2 == 'x' || decodeSecondChar_2 == 'X' + ? parseInt(replaceInput_1.substr(3), 16) + : parseInt(replaceInput_1.substr(2)); + decodeResult_1 = + decodeCode_2 >= 0x10ffff + ? outOfBoundsChar + : decodeCode_2 > 65535 + ? surrogate_pairs_1.fromCodePoint(decodeCode_2) + : fromCharCode(numeric_unicode_map_1.numericUnicodeMap[decodeCode_2] || decodeCode_2); + } + } + replaceResult_1 += decodeResult_1; + replaceLastIndex_1 = replaceMatch_1.index + replaceInput_1.length; + } while ((replaceMatch_1 = decodeRegExp.exec(text))); + if (replaceLastIndex_1 !== text.length) { + replaceResult_1 += text.substring(replaceLastIndex_1); + } + } + else { + replaceResult_1 = + text; + } + return replaceResult_1; +} +var decode_1 = lib.decode = decode; + +/** + * @name ranges-sort + * @fileoverview Sort string index ranges + * @version 4.1.0 + * @author Roy Revelt, Codsen Ltd + * @license MIT + * {@link https://codsen.com/os/ranges-sort/} + */ +const defaults$3 = { + strictlyTwoElementsInRangeArrays: false, + progressFn: null +}; +function rSort(arrOfRanges, originalOptions) { + if (!Array.isArray(arrOfRanges) || !arrOfRanges.length) { + return arrOfRanges; + } + const opts = { ...defaults$3, + ...originalOptions + }; + let culpritsIndex; + let culpritsLen; + if (opts.strictlyTwoElementsInRangeArrays && !arrOfRanges.filter(range => range).every((rangeArr, indx) => { + if (rangeArr.length !== 2) { + culpritsIndex = indx; + culpritsLen = rangeArr.length; + return false; + } + return true; + })) { + throw new TypeError(`ranges-sort: [THROW_ID_03] The first argument should be an array and must consist of arrays which are natural number indexes representing TWO string index ranges. However, ${culpritsIndex}th range (${JSON.stringify(arrOfRanges[culpritsIndex], null, 4)}) has not two but ${culpritsLen} elements!`); + } + if (!arrOfRanges.filter(range => range).every((rangeArr, indx) => { + if (!Number.isInteger(rangeArr[0]) || rangeArr[0] < 0 || !Number.isInteger(rangeArr[1]) || rangeArr[1] < 0) { + culpritsIndex = indx; + return false; + } + return true; + })) { + throw new TypeError(`ranges-sort: [THROW_ID_04] The first argument should be an array and must consist of arrays which are natural number indexes representing string index ranges. However, ${culpritsIndex}th range (${JSON.stringify(arrOfRanges[culpritsIndex], null, 4)}) does not consist of only natural numbers!`); + } + const maxPossibleIterations = arrOfRanges.filter(range => range).length ** 2; + let counter = 0; + return Array.from(arrOfRanges).filter(range => range).sort((range1, range2) => { + if (opts.progressFn) { + counter += 1; + opts.progressFn(Math.floor(counter * 100 / maxPossibleIterations)); + } + if (range1[0] === range2[0]) { + if (range1[1] < range2[1]) { + return -1; + } + if (range1[1] > range2[1]) { + return 1; + } + return 0; + } + if (range1[0] < range2[0]) { + return -1; + } + return 1; + }); +} + +/** + * @name ranges-merge + * @fileoverview Merge and sort string index ranges + * @version 7.1.0 + * @author Roy Revelt, Codsen Ltd + * @license MIT + * {@link https://codsen.com/os/ranges-merge/} + */ +const defaults$2 = { + mergeType: 1, + progressFn: null, + joinRangesThatTouchEdges: true +}; +function rMerge(arrOfRanges, originalOpts) { + function isObj(something) { + return something && typeof something === "object" && !Array.isArray(something); + } + if (!Array.isArray(arrOfRanges) || !arrOfRanges.length) { + return null; + } + let opts; + if (originalOpts) { + if (isObj(originalOpts)) { + opts = { ...defaults$2, + ...originalOpts + }; + if (opts.progressFn && isObj(opts.progressFn) && !Object.keys(opts.progressFn).length) { + opts.progressFn = null; + } else if (opts.progressFn && typeof opts.progressFn !== "function") { + throw new Error(`ranges-merge: [THROW_ID_01] opts.progressFn must be a function! It was given of a type: "${typeof opts.progressFn}", equal to ${JSON.stringify(opts.progressFn, null, 4)}`); + } + if (opts.mergeType && +opts.mergeType !== 1 && +opts.mergeType !== 2) { + throw new Error(`ranges-merge: [THROW_ID_02] opts.mergeType was customised to a wrong thing! It was given of a type: "${typeof opts.mergeType}", equal to ${JSON.stringify(opts.mergeType, null, 4)}`); + } + if (typeof opts.joinRangesThatTouchEdges !== "boolean") { + throw new Error(`ranges-merge: [THROW_ID_04] opts.joinRangesThatTouchEdges was customised to a wrong thing! It was given of a type: "${typeof opts.joinRangesThatTouchEdges}", equal to ${JSON.stringify(opts.joinRangesThatTouchEdges, null, 4)}`); + } + } else { + throw new Error(`emlint: [THROW_ID_03] the second input argument must be a plain object. It was given as:\n${JSON.stringify(originalOpts, null, 4)} (type ${typeof originalOpts})`); + } + } else { + opts = { ...defaults$2 + }; + } + const filtered = arrOfRanges + .filter(range => range).map(subarr => [...subarr]).filter( + rangeArr => rangeArr[2] !== undefined || rangeArr[0] !== rangeArr[1]); + let sortedRanges; + let lastPercentageDone; + let percentageDone; + if (opts.progressFn) { + sortedRanges = rSort(filtered, { + progressFn: percentage => { + percentageDone = Math.floor(percentage / 5); + if (percentageDone !== lastPercentageDone) { + lastPercentageDone = percentageDone; + opts.progressFn(percentageDone); + } + } + }); + } else { + sortedRanges = rSort(filtered); + } + if (!sortedRanges) { + return null; + } + const len = sortedRanges.length - 1; + for (let i = len; i > 0; i--) { + if (opts.progressFn) { + percentageDone = Math.floor((1 - i / len) * 78) + 21; + if (percentageDone !== lastPercentageDone && percentageDone > lastPercentageDone) { + lastPercentageDone = percentageDone; + opts.progressFn(percentageDone); + } + } + if (sortedRanges[i][0] <= sortedRanges[i - 1][0] || !opts.joinRangesThatTouchEdges && sortedRanges[i][0] < sortedRanges[i - 1][1] || opts.joinRangesThatTouchEdges && sortedRanges[i][0] <= sortedRanges[i - 1][1]) { + sortedRanges[i - 1][0] = Math.min(sortedRanges[i][0], sortedRanges[i - 1][0]); + sortedRanges[i - 1][1] = Math.max(sortedRanges[i][1], sortedRanges[i - 1][1]); + if (sortedRanges[i][2] !== undefined && (sortedRanges[i - 1][0] >= sortedRanges[i][0] || sortedRanges[i - 1][1] <= sortedRanges[i][1])) { + if (sortedRanges[i - 1][2] !== null) { + if (sortedRanges[i][2] === null && sortedRanges[i - 1][2] !== null) { + sortedRanges[i - 1][2] = null; + } else if (sortedRanges[i - 1][2] != null) { + if (+opts.mergeType === 2 && sortedRanges[i - 1][0] === sortedRanges[i][0]) { + sortedRanges[i - 1][2] = sortedRanges[i][2]; + } else { + sortedRanges[i - 1][2] += sortedRanges[i][2]; + } + } else { + sortedRanges[i - 1][2] = sortedRanges[i][2]; + } + } + } + sortedRanges.splice(i, 1); + i = sortedRanges.length; + } + } + return sortedRanges.length ? sortedRanges : null; +} + +/** + * @name ranges-apply + * @fileoverview Take an array of string index ranges, delete/replace the string according to them + * @version 5.1.0 + * @author Roy Revelt, Codsen Ltd + * @license MIT + * {@link https://codsen.com/os/ranges-apply/} + */ +function rApply(str, originalRangesArr, progressFn) { + let percentageDone = 0; + let lastPercentageDone = 0; + if (arguments.length === 0) { + throw new Error("ranges-apply: [THROW_ID_01] inputs missing!"); + } + if (typeof str !== "string") { + throw new TypeError(`ranges-apply: [THROW_ID_02] first input argument must be a string! Currently it's: ${typeof str}, equal to: ${JSON.stringify(str, null, 4)}`); + } + if (originalRangesArr && !Array.isArray(originalRangesArr)) { + throw new TypeError(`ranges-apply: [THROW_ID_03] second input argument must be an array (or null)! Currently it's: ${typeof originalRangesArr}, equal to: ${JSON.stringify(originalRangesArr, null, 4)}`); + } + if (progressFn && typeof progressFn !== "function") { + throw new TypeError(`ranges-apply: [THROW_ID_04] the third input argument must be a function (or falsey)! Currently it's: ${typeof progressFn}, equal to: ${JSON.stringify(progressFn, null, 4)}`); + } + if (!originalRangesArr || !originalRangesArr.filter(range => range).length) { + return str; + } + let rangesArr; + if (Array.isArray(originalRangesArr) && Number.isInteger(originalRangesArr[0]) && Number.isInteger(originalRangesArr[1])) { + rangesArr = [Array.from(originalRangesArr)]; + } else { + rangesArr = Array.from(originalRangesArr); + } + const len = rangesArr.length; + let counter = 0; + rangesArr.filter(range => range).forEach((el, i) => { + if (progressFn) { + percentageDone = Math.floor(counter / len * 10); + /* istanbul ignore else */ + if (percentageDone !== lastPercentageDone) { + lastPercentageDone = percentageDone; + progressFn(percentageDone); + } + } + if (!Array.isArray(el)) { + throw new TypeError(`ranges-apply: [THROW_ID_05] ranges array, second input arg., has ${i}th element not an array: ${JSON.stringify(el, null, 4)}, which is ${typeof el}`); + } + if (!Number.isInteger(el[0])) { + if (!Number.isInteger(+el[0]) || +el[0] < 0) { + throw new TypeError(`ranges-apply: [THROW_ID_06] ranges array, second input arg. has ${i}th element, array ${JSON.stringify(el, null, 0)}. Its first element is not an integer, string index, but ${typeof el[0]}, equal to: ${JSON.stringify(el[0], null, 4)}.`); + } else { + rangesArr[i][0] = +rangesArr[i][0]; + } + } + if (!Number.isInteger(el[1])) { + if (!Number.isInteger(+el[1]) || +el[1] < 0) { + throw new TypeError(`ranges-apply: [THROW_ID_07] ranges array, second input arg. has ${i}th element, array ${JSON.stringify(el, null, 0)}. Its second element is not an integer, string index, but ${typeof el[1]}, equal to: ${JSON.stringify(el[1], null, 4)}.`); + } else { + rangesArr[i][1] = +rangesArr[i][1]; + } + } + counter += 1; + }); + const workingRanges = rMerge(rangesArr, { + progressFn: perc => { + if (progressFn) { + percentageDone = 10 + Math.floor(perc / 10); + /* istanbul ignore else */ + if (percentageDone !== lastPercentageDone) { + lastPercentageDone = percentageDone; + progressFn(percentageDone); + } + } + } + }); + const len2 = Array.isArray(workingRanges) ? workingRanges.length : 0; + /* istanbul ignore else */ + if (len2 > 0) { + const tails = str.slice(workingRanges[len2 - 1][1]); + str = workingRanges.reduce((acc, _val, i, arr) => { + if (progressFn) { + percentageDone = 20 + Math.floor(i / len2 * 80); + /* istanbul ignore else */ + if (percentageDone !== lastPercentageDone) { + lastPercentageDone = percentageDone; + progressFn(percentageDone); + } + } + const beginning = i === 0 ? 0 : arr[i - 1][1]; + const ending = arr[i][0]; + return acc + str.slice(beginning, ending) + (arr[i][2] || ""); + }, ""); + str += tails; + } + return str; +} + +/** + * @name string-collapse-leading-whitespace + * @fileoverview Collapse the leading and trailing whitespace of a string + * @version 5.1.0 + * @author Roy Revelt, Codsen Ltd + * @license MIT + * {@link https://codsen.com/os/string-collapse-leading-whitespace/} + */ +function collWhitespace(str, originallineBreakLimit = 1) { + const rawNbsp = "\u00A0"; + function reverse(s) { + return Array.from(s).reverse().join(""); + } + function prep(whitespaceChunk, limit, trailing) { + const firstBreakChar = trailing ? "\n" : "\r"; + const secondBreakChar = trailing ? "\r" : "\n"; + if (!whitespaceChunk) { + return whitespaceChunk; + } + let crlfCount = 0; + let res = ""; + for (let i = 0, len = whitespaceChunk.length; i < len; i++) { + if (whitespaceChunk[i] === firstBreakChar || whitespaceChunk[i] === secondBreakChar && whitespaceChunk[i - 1] !== firstBreakChar) { + crlfCount++; + } + if (`\r\n`.includes(whitespaceChunk[i]) || whitespaceChunk[i] === rawNbsp) { + if (whitespaceChunk[i] === rawNbsp) { + res += whitespaceChunk[i]; + } else if (whitespaceChunk[i] === firstBreakChar) { + if (crlfCount <= limit) { + res += whitespaceChunk[i]; + if (whitespaceChunk[i + 1] === secondBreakChar) { + res += whitespaceChunk[i + 1]; + i++; + } + } + } else if (whitespaceChunk[i] === secondBreakChar && (!whitespaceChunk[i - 1] || whitespaceChunk[i - 1] !== firstBreakChar) && crlfCount <= limit) { + res += whitespaceChunk[i]; + } + } else { + if (!whitespaceChunk[i + 1] && !crlfCount) { + res += " "; + } + } + } + return res; + } + if (typeof str === "string" && str.length) { + let lineBreakLimit = 1; + if (typeof +originallineBreakLimit === "number" && Number.isInteger(+originallineBreakLimit) && +originallineBreakLimit >= 0) { + lineBreakLimit = +originallineBreakLimit; + } + let frontPart = ""; + let endPart = ""; + if (!str.trim()) { + frontPart = str; + } else if (!str[0].trim()) { + for (let i = 0, len = str.length; i < len; i++) { + if (str[i].trim()) { + frontPart = str.slice(0, i); + break; + } + } + } + if (str.trim() && (str.slice(-1).trim() === "" || str.slice(-1) === rawNbsp)) { + for (let i = str.length; i--;) { + if (str[i].trim()) { + endPart = str.slice(i + 1); + break; + } + } + } + return `${prep(frontPart, lineBreakLimit, false)}${str.trim()}${reverse(prep(reverse(endPart), lineBreakLimit, true))}`; + } + return str; +} + +/** + * @name ranges-push + * @fileoverview Gather string index ranges + * @version 5.1.0 + * @author Roy Revelt, Codsen Ltd + * @license MIT + * {@link https://codsen.com/os/ranges-push/} + */ +function existy(x) { + return x != null; +} +function isNum(something) { + return Number.isInteger(something) && something >= 0; +} +function isStr(something) { + return typeof something === "string"; +} +const defaults$1 = { + limitToBeAddedWhitespace: false, + limitLinebreaksCount: 1, + mergeType: 1 +}; +class Ranges { + constructor(originalOpts) { + const opts = { ...defaults$1, + ...originalOpts + }; + if (opts.mergeType && opts.mergeType !== 1 && opts.mergeType !== 2) { + if (isStr(opts.mergeType) && opts.mergeType.trim() === "1") { + opts.mergeType = 1; + } else if (isStr(opts.mergeType) && opts.mergeType.trim() === "2") { + opts.mergeType = 2; + } else { + throw new Error(`ranges-push: [THROW_ID_02] opts.mergeType was customised to a wrong thing! It was given of a type: "${typeof opts.mergeType}", equal to ${JSON.stringify(opts.mergeType, null, 4)}`); + } + } + this.opts = opts; + this.ranges = []; + } + add(originalFrom, originalTo, addVal) { + if (originalFrom == null && originalTo == null) { + return; + } + if (existy(originalFrom) && !existy(originalTo)) { + if (Array.isArray(originalFrom)) { + if (originalFrom.length) { + if (originalFrom.some(el => Array.isArray(el))) { + originalFrom.forEach(thing => { + if (Array.isArray(thing)) { + this.add(...thing); + } + }); + return; + } + if (originalFrom.length && isNum(+originalFrom[0]) && isNum(+originalFrom[1])) { + this.add(...originalFrom); + } + } + return; + } + throw new TypeError(`ranges-push/Ranges/add(): [THROW_ID_12] the first input argument, "from" is set (${JSON.stringify(originalFrom, null, 0)}) but second-one, "to" is not (${JSON.stringify(originalTo, null, 0)})`); + } else if (!existy(originalFrom) && existy(originalTo)) { + throw new TypeError(`ranges-push/Ranges/add(): [THROW_ID_13] the second input argument, "to" is set (${JSON.stringify(originalTo, null, 0)}) but first-one, "from" is not (${JSON.stringify(originalFrom, null, 0)})`); + } + const from = +originalFrom; + const to = +originalTo; + if (isNum(addVal)) { + addVal = String(addVal); + } + if (isNum(from) && isNum(to)) { + if (existy(addVal) && !isStr(addVal) && !isNum(addVal)) { + throw new TypeError(`ranges-push/Ranges/add(): [THROW_ID_08] The third argument, the value to add, was given not as string but ${typeof addVal}, equal to:\n${JSON.stringify(addVal, null, 4)}`); + } + if (existy(this.ranges) && Array.isArray(this.last()) && from === this.last()[1]) { + this.last()[1] = to; + if (this.last()[2] === null || addVal === null) ; + if (this.last()[2] !== null && existy(addVal)) { + let calculatedVal = this.last()[2] && this.last()[2].length > 0 && (!this.opts || !this.opts.mergeType || this.opts.mergeType === 1) ? this.last()[2] + addVal : addVal; + if (this.opts.limitToBeAddedWhitespace) { + calculatedVal = collWhitespace(calculatedVal, this.opts.limitLinebreaksCount); + } + if (!(isStr(calculatedVal) && !calculatedVal.length)) { + this.last()[2] = calculatedVal; + } + } + } else { + if (!this.ranges) { + this.ranges = []; + } + const whatToPush = addVal !== undefined && !(isStr(addVal) && !addVal.length) ? [from, to, addVal && this.opts.limitToBeAddedWhitespace ? collWhitespace(addVal, this.opts.limitLinebreaksCount) : addVal] : [from, to]; + this.ranges.push(whatToPush); + } + } else { + if (!(isNum(from) && from >= 0)) { + throw new TypeError(`ranges-push/Ranges/add(): [THROW_ID_09] "from" value, the first input argument, must be a natural number or zero! Currently it's of a type "${typeof from}" equal to: ${JSON.stringify(from, null, 4)}`); + } else { + throw new TypeError(`ranges-push/Ranges/add(): [THROW_ID_10] "to" value, the second input argument, must be a natural number or zero! Currently it's of a type "${typeof to}" equal to: ${JSON.stringify(to, null, 4)}`); + } + } + } + push(originalFrom, originalTo, addVal) { + this.add(originalFrom, originalTo, addVal); + } + current() { + if (Array.isArray(this.ranges) && this.ranges.length) { + this.ranges = rMerge(this.ranges, { + mergeType: this.opts.mergeType + }); + if (this.ranges && this.opts.limitToBeAddedWhitespace) { + return this.ranges.map(val => { + if (existy(val[2])) { + return [val[0], val[1], collWhitespace(val[2], this.opts.limitLinebreaksCount)]; + } + return val; + }); + } + return this.ranges; + } + return null; + } + wipe() { + this.ranges = []; + } + replace(givenRanges) { + if (Array.isArray(givenRanges) && givenRanges.length) { + if (!(Array.isArray(givenRanges[0]) && isNum(givenRanges[0][0]))) { + throw new Error(`ranges-push/Ranges/replace(): [THROW_ID_11] Single range was given but we expected array of arrays! The first element, ${JSON.stringify(givenRanges[0], null, 4)} should be an array and its first element should be an integer, a string index.`); + } else { + this.ranges = Array.from(givenRanges); + } + } else { + this.ranges = []; + } + } + last() { + if (Array.isArray(this.ranges) && this.ranges.length) { + return this.ranges[this.ranges.length - 1]; + } + return null; + } +} + +var lodash_clonedeep = {exports: {}}; + +/** + * lodash (Custom Build) <https://lodash.com/> + * Build: `lodash modularize exports="npm" -o ./` + * Copyright jQuery Foundation and other contributors <https://jquery.org/> + * Released under MIT license <https://lodash.com/license> + * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE> + * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors + */ + +(function (module, exports) { +/** Used as the size to enable large array optimizations. */ +var LARGE_ARRAY_SIZE = 200; + +/** Used to stand-in for `undefined` hash values. */ +var HASH_UNDEFINED = '__lodash_hash_undefined__'; + +/** Used as references for various `Number` constants. */ +var MAX_SAFE_INTEGER = 9007199254740991; + +/** `Object#toString` result references. */ +var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + weakMapTag = '[object WeakMap]'; + +var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + +/** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ +var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; + +/** Used to match `RegExp` flags from their coerced string values. */ +var reFlags = /\w*$/; + +/** Used to detect host constructors (Safari). */ +var reIsHostCtor = /^\[object .+?Constructor\]$/; + +/** Used to detect unsigned integer values. */ +var reIsUint = /^(?:0|[1-9]\d*)$/; + +/** Used to identify `toStringTag` values supported by `_.clone`. */ +var cloneableTags = {}; +cloneableTags[argsTag] = cloneableTags[arrayTag] = +cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = +cloneableTags[boolTag] = cloneableTags[dateTag] = +cloneableTags[float32Tag] = cloneableTags[float64Tag] = +cloneableTags[int8Tag] = cloneableTags[int16Tag] = +cloneableTags[int32Tag] = cloneableTags[mapTag] = +cloneableTags[numberTag] = cloneableTags[objectTag] = +cloneableTags[regexpTag] = cloneableTags[setTag] = +cloneableTags[stringTag] = cloneableTags[symbolTag] = +cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = +cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; +cloneableTags[errorTag] = cloneableTags[funcTag] = +cloneableTags[weakMapTag] = false; + +/** Detect free variable `global` from Node.js. */ +var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal; + +/** Detect free variable `self`. */ +var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + +/** Used as a reference to the global object. */ +var root = freeGlobal || freeSelf || Function('return this')(); + +/** Detect free variable `exports`. */ +var freeExports = exports && !exports.nodeType && exports; + +/** Detect free variable `module`. */ +var freeModule = freeExports && 'object' == 'object' && module && !module.nodeType && module; + +/** Detect the popular CommonJS extension `module.exports`. */ +var moduleExports = freeModule && freeModule.exports === freeExports; + +/** + * Adds the key-value `pair` to `map`. + * + * @private + * @param {Object} map The map to modify. + * @param {Array} pair The key-value pair to add. + * @returns {Object} Returns `map`. + */ +function addMapEntry(map, pair) { + // Don't return `map.set` because it's not chainable in IE 11. + map.set(pair[0], pair[1]); + return map; +} + +/** + * Adds `value` to `set`. + * + * @private + * @param {Object} set The set to modify. + * @param {*} value The value to add. + * @returns {Object} Returns `set`. + */ +function addSetEntry(set, value) { + // Don't return `set.add` because it's not chainable in IE 11. + set.add(value); + return set; +} + +/** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ +function arrayEach(array, iteratee) { + var index = -1, + length = array ? array.length : 0; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; +} + +/** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ +function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; +} + +/** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ +function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array ? array.length : 0; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; +} + +/** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ +function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; +} + +/** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ +function getValue(object, key) { + return object == null ? undefined : object[key]; +} + +/** + * Checks if `value` is a host object in IE < 9. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a host object, else `false`. + */ +function isHostObject(value) { + // Many host objects are `Object` objects that can coerce to strings + // despite having improperly defined `toString` methods. + var result = false; + if (value != null && typeof value.toString != 'function') { + try { + result = !!(value + ''); + } catch (e) {} + } + return result; +} + +/** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ +function mapToArray(map) { + var index = -1, + result = Array(map.size); + + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; +} + +/** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ +function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; +} + +/** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ +function setToArray(set) { + var index = -1, + result = Array(set.size); + + set.forEach(function(value) { + result[++index] = value; + }); + return result; +} + +/** Used for built-in method references. */ +var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; + +/** Used to detect overreaching core-js shims. */ +var coreJsData = root['__core-js_shared__']; + +/** Used to detect methods masquerading as native. */ +var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; +}()); + +/** Used to resolve the decompiled source of functions. */ +var funcToString = funcProto.toString; + +/** Used to check objects for own properties. */ +var hasOwnProperty = objectProto.hasOwnProperty; + +/** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ +var objectToString = objectProto.toString; + +/** Used to detect if a method is native. */ +var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' +); + +/** Built-in value references. */ +var Buffer = moduleExports ? root.Buffer : undefined, + Symbol = root.Symbol, + Uint8Array = root.Uint8Array, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice; + +/* Built-in method references for those with the same name as other `lodash` methods. */ +var nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeKeys = overArg(Object.keys, Object); + +/* Built-in method references that are verified to be native. */ +var DataView = getNative(root, 'DataView'), + Map = getNative(root, 'Map'), + Promise = getNative(root, 'Promise'), + Set = getNative(root, 'Set'), + WeakMap = getNative(root, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + +/** Used to detect maps, sets, and weakmaps. */ +var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + +/** Used to convert symbols to primitives and strings. */ +var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined; + +/** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ +function Hash(entries) { + var index = -1, + length = entries ? entries.length : 0; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } +} + +/** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ +function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; +} + +/** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ +function hashDelete(key) { + return this.has(key) && delete this.__data__[key]; +} + +/** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ +function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; +} + +/** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ +function hashHas(key) { + var data = this.__data__; + return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key); +} + +/** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ +function hashSet(key, value) { + var data = this.__data__; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; +} + +// Add methods to `Hash`. +Hash.prototype.clear = hashClear; +Hash.prototype['delete'] = hashDelete; +Hash.prototype.get = hashGet; +Hash.prototype.has = hashHas; +Hash.prototype.set = hashSet; + +/** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ +function ListCache(entries) { + var index = -1, + length = entries ? entries.length : 0; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } +} + +/** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ +function listCacheClear() { + this.__data__ = []; +} + +/** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ +function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + return false; + } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + return true; +} + +/** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ +function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; +} + +/** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ +function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; +} + +/** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ +function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; +} + +// Add methods to `ListCache`. +ListCache.prototype.clear = listCacheClear; +ListCache.prototype['delete'] = listCacheDelete; +ListCache.prototype.get = listCacheGet; +ListCache.prototype.has = listCacheHas; +ListCache.prototype.set = listCacheSet; + +/** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ +function MapCache(entries) { + var index = -1, + length = entries ? entries.length : 0; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } +} + +/** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ +function mapCacheClear() { + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; +} + +/** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ +function mapCacheDelete(key) { + return getMapData(this, key)['delete'](key); +} + +/** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ +function mapCacheGet(key) { + return getMapData(this, key).get(key); +} + +/** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ +function mapCacheHas(key) { + return getMapData(this, key).has(key); +} + +/** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ +function mapCacheSet(key, value) { + getMapData(this, key).set(key, value); + return this; +} + +// Add methods to `MapCache`. +MapCache.prototype.clear = mapCacheClear; +MapCache.prototype['delete'] = mapCacheDelete; +MapCache.prototype.get = mapCacheGet; +MapCache.prototype.has = mapCacheHas; +MapCache.prototype.set = mapCacheSet; + +/** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ +function Stack(entries) { + this.__data__ = new ListCache(entries); +} + +/** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ +function stackClear() { + this.__data__ = new ListCache; +} + +/** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ +function stackDelete(key) { + return this.__data__['delete'](key); +} + +/** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ +function stackGet(key) { + return this.__data__.get(key); +} + +/** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ +function stackHas(key) { + return this.__data__.has(key); +} + +/** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ +function stackSet(key, value) { + var cache = this.__data__; + if (cache instanceof ListCache) { + var pairs = cache.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + return this; + } + cache = this.__data__ = new MapCache(pairs); + } + cache.set(key, value); + return this; +} + +// Add methods to `Stack`. +Stack.prototype.clear = stackClear; +Stack.prototype['delete'] = stackDelete; +Stack.prototype.get = stackGet; +Stack.prototype.has = stackHas; +Stack.prototype.set = stackSet; + +/** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ +function arrayLikeKeys(value, inherited) { + // Safari 8.1 makes `arguments.callee` enumerable in strict mode. + // Safari 9 makes `arguments.length` enumerable in strict mode. + var result = (isArray(value) || isArguments(value)) + ? baseTimes(value.length, String) + : []; + + var length = result.length, + skipIndexes = !!length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && (key == 'length' || isIndex(key, length)))) { + result.push(key); + } + } + return result; +} + +/** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ +function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + object[key] = value; + } +} + +/** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @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`. + */ +function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; +} + +/** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ +function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); +} + +/** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @param {boolean} [isFull] Specify a clone including symbols. + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ +function baseClone(value, isDeep, isFull, customizer, key, object, stack) { + var result; + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + if (isHostObject(value)) { + return object ? value : {}; + } + result = initCloneObject(isFunc ? {} : value); + if (!isDeep) { + return copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, baseClone, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + if (!isArr) { + var props = isFull ? getAllKeys(value) : keys(value); + } + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack)); + }); + return result; +} + +/** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} prototype The object to inherit from. + * @returns {Object} Returns the new object. + */ +function baseCreate(proto) { + return isObject(proto) ? objectCreate(proto) : {}; +} + +/** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ +function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); +} + +/** + * The base implementation of `getTag`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ +function baseGetTag(value) { + return objectToString.call(value); +} + +/** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ +function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); +} + +/** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ +function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; +} + +/** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ +function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var result = new buffer.constructor(buffer.length); + buffer.copy(result); + return result; +} + +/** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ +function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; +} + +/** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ +function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); +} + +/** + * Creates a clone of `map`. + * + * @private + * @param {Object} map The map to clone. + * @param {Function} cloneFunc The function to clone values. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned map. + */ +function cloneMap(map, isDeep, cloneFunc) { + var array = isDeep ? cloneFunc(mapToArray(map), true) : mapToArray(map); + return arrayReduce(array, addMapEntry, new map.constructor); +} + +/** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ +function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; +} + +/** + * Creates a clone of `set`. + * + * @private + * @param {Object} set The set to clone. + * @param {Function} cloneFunc The function to clone values. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned set. + */ +function cloneSet(set, isDeep, cloneFunc) { + var array = isDeep ? cloneFunc(setToArray(set), true) : setToArray(set); + return arrayReduce(array, addSetEntry, new set.constructor); +} + +/** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ +function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; +} + +/** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ +function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); +} + +/** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ +function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; +} + +/** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ +function copyObject(source, props, object, customizer) { + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + assignValue(object, key, newValue === undefined ? source[key] : newValue); + } + return object; +} + +/** + * Copies own symbol properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ +function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); +} + +/** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ +function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); +} + +/** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ +function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; +} + +/** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ +function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; +} + +/** + * Creates an array of the own enumerable symbol properties of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ +var getSymbols = nativeGetSymbols ? overArg(nativeGetSymbols, Object) : stubArray; + +/** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ +var getTag = baseGetTag; + +// Fallback for data views, maps, sets, and weak maps in IE 11, +// for data views in Edge < 14, and promises in Node.js. +if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = objectToString.call(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : undefined; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; + }; +} + +/** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ +function initCloneArray(array) { + var length = array.length, + result = array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; +} + +/** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ +function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; +} + +/** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {Function} cloneFunc The function to clone values. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ +function initCloneByTag(object, tag, cloneFunc, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); + + case boolTag: + case dateTag: + return new Ctor(+object); + + case dataViewTag: + return cloneDataView(object, isDeep); + + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); + + case mapTag: + return cloneMap(object, isDeep, cloneFunc); + + case numberTag: + case stringTag: + return new Ctor(object); + + case regexpTag: + return cloneRegExp(object); + + case setTag: + return cloneSet(object, isDeep, cloneFunc); + + case symbolTag: + return cloneSymbol(object); + } +} + +/** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ +function isIndex(value, length) { + length = length == null ? MAX_SAFE_INTEGER : length; + return !!length && + (typeof value == 'number' || reIsUint.test(value)) && + (value > -1 && value % 1 == 0 && value < length); +} + +/** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ +function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); +} + +/** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ +function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); +} + +/** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ +function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; +} + +/** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to process. + * @returns {string} Returns the source code. + */ +function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; +} + +/** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ +function cloneDeep(value) { + return baseClone(value, true, true); +} + +/** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ +function eq(value, other) { + return value === other || (value !== value && other !== other); +} + +/** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ +function isArguments(value) { + // Safari 8.1 makes `arguments.callee` enumerable in strict mode. + return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') && + (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag); +} + +/** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ +var isArray = Array.isArray; + +/** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ +function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); +} + +/** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ +function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); +} + +/** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ +var isBuffer = nativeIsBuffer || stubFalse; + +/** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ +function isFunction(value) { + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 8-9 which returns 'object' for typed array and other constructors. + var tag = isObject(value) ? objectToString.call(value) : ''; + return tag == funcTag || tag == genTag; +} + +/** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ +function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; +} + +/** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ +function isObject(value) { + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); +} + +/** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ +function isObjectLike(value) { + return !!value && typeof value == 'object'; +} + +/** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ +function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); +} + +/** + * This method returns a new empty array. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {Array} Returns the new empty array. + * @example + * + * var arrays = _.times(2, _.stubArray); + * + * console.log(arrays); + * // => [[], []] + * + * console.log(arrays[0] === arrays[1]); + * // => false + */ +function stubArray() { + return []; +} + +/** + * This method returns `false`. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {boolean} Returns `false`. + * @example + * + * _.times(2, _.stubFalse); + * // => [false, false] + */ +function stubFalse() { + return false; +} + +module.exports = cloneDeep; +}(lodash_clonedeep, lodash_clonedeep.exports)); + +/** + * @name string-left-right + * @fileoverview Looks up the first non-whitespace character to the left/right of a given index + * @version 4.1.0 + * @author Roy Revelt, Codsen Ltd + * @license MIT + * {@link https://codsen.com/os/string-left-right/} + */ +const RAWNBSP = "\u00A0"; +function rightMain({ + str, + idx = 0, + stopAtNewlines = false, + stopAtRawNbsp = false +}) { + if (typeof str !== "string" || !str.length) { + return null; + } + if (!idx || typeof idx !== "number") { + idx = 0; + } + if (!str[idx + 1]) { + return null; + } + if ( + str[idx + 1] && ( + str[idx + 1].trim() || + stopAtNewlines && + "\n\r".includes(str[idx + 1]) || + stopAtRawNbsp && + str[idx + 1] === RAWNBSP)) { + return idx + 1; + } + if ( + str[idx + 2] && ( + str[idx + 2].trim() || + stopAtNewlines && + "\n\r".includes(str[idx + 2]) || + stopAtRawNbsp && + str[idx + 2] === RAWNBSP)) { + return idx + 2; + } + for (let i = idx + 1, len = str.length; i < len; i++) { + if ( + str[i].trim() || + stopAtNewlines && + "\n\r".includes(str[i]) || + stopAtRawNbsp && + str[i] === RAWNBSP) { + return i; + } + } + return null; +} +function right(str, idx = 0) { + return rightMain({ + str, + idx, + stopAtNewlines: false, + stopAtRawNbsp: false + }); +} + +/* eslint @typescript-eslint/explicit-module-boundary-types:0 */ +/* istanbul ignore next */ +function characterSuitableForNames(char) { + return /[-_A-Za-z0-9]/.test(char); +} +/* istanbul ignore next */ +function prepHopefullyAnArray(something, name) { + if (!something) { + return []; + } + if (Array.isArray(something)) { + return something.filter((val) => typeof val === "string" && val.trim()); + } + if (typeof something === "string") { + return something.trim() ? [something] : []; + } + throw new TypeError(`string-strip-html/stripHtml(): [THROW_ID_03] ${name} must be array containing zero or more strings or something falsey. Currently it's equal to: ${something}, that a type of ${typeof something}.`); +} +/* istanbul ignore next */ +function xBeforeYOnTheRight(str, startingIdx, x, y) { + for (let i = startingIdx, len = str.length; i < len; i++) { + if (str.startsWith(x, i)) { + return true; + } + if (str.startsWith(y, i)) { + return false; + } + } + return false; +} +// +// precaution against JSP comparison +// kl <c:when test="${!empty ab.cd && ab.cd > 0.00}"> mn +// ^ +// we're here, it's false ending +// +/* istanbul ignore next */ +function notWithinAttrQuotes(tag, str, i) { + return (!tag || + !tag.quotes || + !xBeforeYOnTheRight(str, i + 1, tag.quotes.value, ">")); +} + +var version$1 = "8.3.0"; + +const version = version$1; +const defaults = { + ignoreTags: [], + onlyStripTags: [], + stripTogetherWithTheirContents: ["script", "style", "xml"], + skipHtmlDecoding: false, + trimOnlySpaces: false, + dumpLinkHrefsNearby: { + enabled: false, + putOnNewLine: false, + wrapHeads: "", + wrapTails: "", + }, + cb: null, +}; +/** + * Strips HTML tags from strings. No parser, accepts mixed sources. + */ +function stripHtml(str, originalOpts) { + // const + // =========================================================================== + const start = Date.now(); + const definitelyTagNames = new Set([ + "!doctype", + "abbr", + "address", + "area", + "article", + "aside", + "audio", + "base", + "bdi", + "bdo", + "blockquote", + "body", + "br", + "button", + "canvas", + "caption", + "cite", + "code", + "col", + "colgroup", + "data", + "datalist", + "dd", + "del", + "details", + "dfn", + "dialog", + "div", + "dl", + "doctype", + "dt", + "em", + "embed", + "fieldset", + "figcaption", + "figure", + "footer", + "form", + "h1", + "h2", + "h3", + "h4", + "h5", + "h6", + "head", + "header", + "hgroup", + "hr", + "html", + "iframe", + "img", + "input", + "ins", + "kbd", + "keygen", + "label", + "legend", + "li", + "link", + "main", + "map", + "mark", + "math", + "menu", + "menuitem", + "meta", + "meter", + "nav", + "noscript", + "object", + "ol", + "optgroup", + "option", + "output", + "param", + "picture", + "pre", + "progress", + "rb", + "rp", + "rt", + "rtc", + "ruby", + "samp", + "script", + "section", + "select", + "slot", + "small", + "source", + "span", + "strong", + "style", + "sub", + "summary", + "sup", + "svg", + "table", + "tbody", + "td", + "template", + "textarea", + "tfoot", + "th", + "thead", + "time", + "title", + "tr", + "track", + "ul", + "var", + "video", + "wbr", + "xml", + ]); + const singleLetterTags = new Set(["a", "b", "i", "p", "q", "s", "u"]); + const punctuation = new Set([ + ".", + ",", + "?", + ";", + ")", + "\u2026", + '"', + "\u00BB", + ]); + // \u00BB is » - guillemet - right angled quote + // \u2026 is … - ellipsis + // we'll gather opening tags from ranged-pairs here: + const rangedOpeningTags = []; + // we'll put tag locations here + const allTagLocations = []; + let filteredTagLocations = []; + // variables + // =========================================================================== + // records the info about the suspected tag: + let tag = {}; + function resetTag() { + tag = { attributes: [] }; + } + resetTag(); + // records the beginning of the current whitespace chunk: + let chunkOfWhitespaceStartsAt = null; + // records the beginning of the current chunk of spaces (strictly spaces-only): + let chunkOfSpacesStartsAt = null; + // temporary variable to assemble the attribute pieces: + let attrObj = {}; + // marker to store captured href, used in opts.dumpLinkHrefsNearby.enabled + let hrefDump = { + tagName: "", + hrefValue: "", + openingTagEnds: undefined, + }; + // used to insert extra things when pushing into ranges array + let stringToInsertAfter = ""; + // state flag + let hrefInsertionActive = false; + // marker to keep a note where does the whitespace chunk that follows closing bracket end. + // It's necessary for opts.trimOnlySpaces when there's closing bracket, whitespace, non-space + // whitespace character ("\n", "\t" etc), whitspace, end-of-file. Trim will kick in and will + // try to trim up until the EOF, be we'll have to pull the end of trim back, back to the first + // character of aforementioned non-space whitespace character sequence. + // This variable will tell exactly where it is located. + let spacesChunkWhichFollowsTheClosingBracketEndsAt = null; + // functions + // =========================================================================== + function existy(x) { + return x != null; + } + function isStr(something) { + return typeof something === "string"; + } + function treatRangedTags(i, opts, rangesToDelete) { + if (Array.isArray(opts.stripTogetherWithTheirContents) && + (opts.stripTogetherWithTheirContents.includes(tag.name) || + opts.stripTogetherWithTheirContents.includes("*"))) { + // it depends, is it opening or closing range tag: + // We could try to distinguish opening from closing tags by presence of + // slash, but that would be a liability for dirty code cases where clash + // is missing. Better, instead, just see if an entry for that tag name + // already exists in the rangesToDelete[]. + if (Array.isArray(rangedOpeningTags) && + rangedOpeningTags.some((obj) => obj.name === tag.name && obj.lastClosingBracketAt < i)) { + // if (tag.slashPresent) { + // closing tag. + // filter and remove the found tag + for (let y = rangedOpeningTags.length; y--;) { + if (rangedOpeningTags[y].name === tag.name) { + // we'll remove from opening tag's opening bracket to closing tag's + // closing bracket because whitespace will be taken care of separately, + // when tags themselves will be removed. + // Basically, for each range tag there will be 3 removals: + // opening tag, closing tag and all from opening to closing tag. + // We keep removing opening and closing tags along whole range + // because of few reasons: 1. cases of broken/dirty code, 2. keeping + // the algorithm simpler, 3. opts that control whitespace removal + // around tags. + // 1. add range without caring about surrounding whitespace around + // the range + // also, tend filteredTagLocations in the output - tags which are to be + // deleted with contents should be reported as one large range in + // filteredTagLocations - from opening to closing - not two ranges + /* istanbul ignore else */ + if (opts.stripTogetherWithTheirContents.includes(tag.name) || + opts.stripTogetherWithTheirContents.includes("*")) { + filteredTagLocations = filteredTagLocations.filter(([from, upto]) => (from < rangedOpeningTags[y].lastOpeningBracketAt || + from >= i + 1) && + (upto <= rangedOpeningTags[y].lastOpeningBracketAt || + upto > i + 1)); + } + let endingIdx = i + 1; + if (tag.lastClosingBracketAt) { + endingIdx = tag.lastClosingBracketAt + 1; + } + filteredTagLocations.push([ + rangedOpeningTags[y].lastOpeningBracketAt, + endingIdx, + ]); + /* istanbul ignore else */ + if (punctuation.has(str[i]) && opts.cb) { + opts.cb({ + tag: tag, + deleteFrom: rangedOpeningTags[y].lastOpeningBracketAt, + deleteTo: i + 1, + insert: null, + rangesArr: rangesToDelete, + proposedReturn: [ + rangedOpeningTags[y].lastOpeningBracketAt, + i, + null, + ], + }); + // null will remove any spaces added so far. Opening and closing range tags might + // have received spaces as separate entities, but those might not be necessary for range: + // "text <script>deleteme</script>." + } + else if (opts.cb) { + opts.cb({ + tag: tag, + deleteFrom: rangedOpeningTags[y].lastOpeningBracketAt, + deleteTo: i, + insert: "", + rangesArr: rangesToDelete, + proposedReturn: [ + rangedOpeningTags[y].lastOpeningBracketAt, + i, + "", + ], + }); + } + // 2. delete the reference to this range from rangedOpeningTags[] + // because there might be more ranged tags of the same name or + // different, overlapping or encompassing ranged tags with same + // or different name. + rangedOpeningTags.splice(y, 1); + // 3. stop the loop + break; + } + } + } + else { + // opening tag. + rangedOpeningTags.push(tag); + } + } + } + function calculateWhitespaceToInsert(str2, // whole string + currCharIdx, // current index + fromIdx, // leftmost whitespace edge around tag + toIdx, // rightmost whitespace edge around tag + lastOpeningBracketAt, // tag actually starts here (<) + lastClosingBracketAt // tag actually ends here (>) + ) { + let strToEvaluateForLineBreaks = ""; + if (Number.isInteger(fromIdx) && + fromIdx < lastOpeningBracketAt) { + strToEvaluateForLineBreaks += str2.slice(fromIdx, lastOpeningBracketAt); + } + if (Number.isInteger(toIdx) && + toIdx > lastClosingBracketAt + 1) { + // limit whitespace that follows the tag, stop at linebreak. That's to make + // the algorithm composable - we include linebreaks in front but not after. + const temp = str2.slice(lastClosingBracketAt + 1, toIdx); + if (temp.includes("\n") && isOpeningAt(toIdx, str2)) { + strToEvaluateForLineBreaks += " "; + } + else { + strToEvaluateForLineBreaks += temp; + } + } + if (!punctuation.has(str2[currCharIdx]) && str2[currCharIdx] !== "!") { + const foundLineBreaks = strToEvaluateForLineBreaks.match(/\n/g); + if (Array.isArray(foundLineBreaks) && foundLineBreaks.length) { + if (foundLineBreaks.length === 1) { + return "\n"; + } + if (foundLineBreaks.length === 2) { + return "\n\n"; + } + // return three line breaks maximum + return "\n\n\n"; + } + // default spacer - a single space + return " "; + } + // default case: space + return ""; + } + function calculateHrefToBeInserted(opts) { + if (opts.dumpLinkHrefsNearby.enabled && + hrefDump.tagName && + hrefDump.tagName === tag.name && + tag.lastOpeningBracketAt && + ((hrefDump.openingTagEnds && + tag.lastOpeningBracketAt > hrefDump.openingTagEnds) || + !hrefDump.openingTagEnds)) { + hrefInsertionActive = true; + } + if (hrefInsertionActive) { + const lineBreaks = opts.dumpLinkHrefsNearby.putOnNewLine ? "\n\n" : ""; + stringToInsertAfter = `${lineBreaks}${hrefDump.hrefValue}${lineBreaks}`; + } + } + function isOpeningAt(i, customStr) { + if (customStr) { + return customStr[i] === "<" && customStr[i + 1] !== "%"; + } + return str[i] === "<" && str[i + 1] !== "%"; + } + function isClosingAt(i) { + return str[i] === ">" && str[i - 1] !== "%"; + } + // validation + // =========================================================================== + if (typeof str !== "string") { + throw new TypeError(`string-strip-html/stripHtml(): [THROW_ID_01] Input must be string! Currently it's: ${(typeof str).toLowerCase()}, equal to:\n${JSON.stringify(str, null, 4)}`); + } + if (originalOpts && !lodash_isplainobject(originalOpts)) { + throw new TypeError(`string-strip-html/stripHtml(): [THROW_ID_02] Optional Options Object must be a plain object! Currently it's: ${(typeof originalOpts).toLowerCase()}, equal to:\n${JSON.stringify(originalOpts, null, 4)}`); + } + // eslint-disable-next-line consistent-return + function resetHrefMarkers() { + // reset the hrefDump + if (hrefInsertionActive) { + hrefDump = { + tagName: "", + hrefValue: "", + openingTagEnds: undefined, + }; + hrefInsertionActive = false; + } + } + // prep opts + // =========================================================================== + const opts = { ...defaults, ...originalOpts }; + if (Object.prototype.hasOwnProperty.call(opts, "returnRangesOnly")) { + throw new TypeError(`string-strip-html/stripHtml(): [THROW_ID_03] opts.returnRangesOnly has been removed from the API since v.5 release.`); + } + // filter non-string or whitespace entries from the following arrays or turn + // them into arrays: + opts.ignoreTags = prepHopefullyAnArray(opts.ignoreTags, "opts.ignoreTags"); + opts.onlyStripTags = prepHopefullyAnArray(opts.onlyStripTags, "opts.onlyStripTags"); + // let's define the onlyStripTagsMode. Since opts.onlyStripTags can cancel + // out the entries in opts.onlyStripTags, it can be empty but this mode has + // to be switched on: + const onlyStripTagsMode = !!opts.onlyStripTags.length; + // if both opts.onlyStripTags and opts.ignoreTags are set, latter is respected, + // we simply exclude ignored tags from the opts.onlyStripTags. + if (opts.onlyStripTags.length && opts.ignoreTags.length) { + opts.onlyStripTags = lodash_without(opts.onlyStripTags, ...opts.ignoreTags); + } + if (!lodash_isplainobject(opts.dumpLinkHrefsNearby)) { + opts.dumpLinkHrefsNearby = { ...defaults.dumpLinkHrefsNearby }; + } + // Object.assign doesn't deep merge, so we take care of opts.dumpLinkHrefsNearby: + opts.dumpLinkHrefsNearby = defaults.dumpLinkHrefsNearby; + if (originalOpts && + Object.prototype.hasOwnProperty.call(originalOpts, "dumpLinkHrefsNearby") && + existy(originalOpts.dumpLinkHrefsNearby)) { + /* istanbul ignore else */ + if (lodash_isplainobject(originalOpts.dumpLinkHrefsNearby)) { + opts.dumpLinkHrefsNearby = { + ...defaults.dumpLinkHrefsNearby, + ...originalOpts.dumpLinkHrefsNearby, + }; + } + else if (originalOpts.dumpLinkHrefsNearby) { + // checking to omit value as number zero + throw new TypeError(`string-strip-html/stripHtml(): [THROW_ID_04] Optional Options Object's key dumpLinkHrefsNearby was set to ${typeof originalOpts.dumpLinkHrefsNearby}, equal to ${JSON.stringify(originalOpts.dumpLinkHrefsNearby, null, 4)}. The only allowed value is a plain object. See the API reference.`); + } + } + if (!opts.stripTogetherWithTheirContents) { + opts.stripTogetherWithTheirContents = []; + } + else if (typeof opts.stripTogetherWithTheirContents === "string" && + opts.stripTogetherWithTheirContents.length) { + opts.stripTogetherWithTheirContents = [opts.stripTogetherWithTheirContents]; + } + const somethingCaught = {}; + if (opts.stripTogetherWithTheirContents && + Array.isArray(opts.stripTogetherWithTheirContents) && + opts.stripTogetherWithTheirContents.length && + !opts.stripTogetherWithTheirContents.every((el, i) => { + if (!(typeof el === "string")) { + somethingCaught.el = el; + somethingCaught.i = i; + return false; + } + return true; + })) { + throw new TypeError(`string-strip-html/stripHtml(): [THROW_ID_05] Optional Options Object's key stripTogetherWithTheirContents was set to contain not just string elements! For example, element at index ${somethingCaught.i} has a value ${somethingCaught.el} which is not string but ${(typeof somethingCaught.el).toLowerCase()}.`); + } + // prep the opts.cb + if (!opts.cb) { + opts.cb = ({ rangesArr, proposedReturn }) => { + if (proposedReturn) { + rangesArr.push(...proposedReturn); + } + }; + } + // if the links have to be on a new line, we need to increase the allowance for line breaks + // in Ranges class, it's the ranges-push API setting opts.limitLinebreaksCount + // see https://www.npmjs.com/package/ranges-push#optional-options-object + const rangesToDelete = new Ranges({ + limitToBeAddedWhitespace: true, + limitLinebreaksCount: 2, + }); + // TODO: it's chummy - ranges will be unreliable if initial str has changed + // use ranges-ent-decode + if (!opts.skipHtmlDecoding) { + while (str !== decode_1(str, { scope: "strict" })) { + // eslint-disable-next-line no-param-reassign + str = decode_1(str, { scope: "strict" }); + } + } + // step 1. + // =========================================================================== + for (let i = 0, len = str.length; i < len; i++) { + // catch the first ending of the spaces chunk that follows the closing bracket. + // ------------------------------------------------------------------------- + // There can be no space after bracket, in that case, the result will be that character that + // follows the closing bracket. + // There can be bunch of spaces that end with EOF. In that case it's fine, this variable will + // be null. + if (Object.keys(tag).length > 1 && + tag.lastClosingBracketAt && + tag.lastClosingBracketAt < i && + str[i] !== " " && + spacesChunkWhichFollowsTheClosingBracketEndsAt === null) { + spacesChunkWhichFollowsTheClosingBracketEndsAt = i; + } + // skip known ESP token pairs + // ------------------------------------------------------------------------- + if (str[i] === "%" && str[i - 1] === "{" && str.includes("%}", i + 1)) { + i = str.indexOf("%}", i) - 1; + continue; + } + // catch the closing bracket of dirty tags with missing opening brackets + // ------------------------------------------------------------------------- + if (isClosingAt(i)) { + // tend cases where opening bracket of a tag is missing: + if ((!tag || Object.keys(tag).length < 2) && i > 1) { + // traverse backwards either until start of string or ">" is found + for (let y = i; y--;) { + if (str[y - 1] === undefined || isClosingAt(y)) { + const startingPoint = str[y - 1] === undefined ? y : y + 1; + const culprit = str.slice(startingPoint, i + 1); + // Check if the culprit starts with a tag that's more likely a tag + // name (like "body" or "article"). Single-letter tag names are excluded + // because they can be plausible, ie. in math texts and so on. + // Nobody uses puts comparison signs between words like: "article > ", + // but single letter names can be plausible: "a > b" in math. + if (str !== `<${lodash_trim(culprit.trim(), "/>")}>` && // recursion prevention + [...definitelyTagNames].some((val) => lodash_trim(culprit + .trim() + .split(/\s+/) + .filter((val2) => val2.trim()) + .filter((_val3, i3) => i3 === 0), "/>").toLowerCase() === val) && + stripHtml(`<${culprit.trim()}>`, opts).result === "") { + /* istanbul ignore else */ + if (!allTagLocations.length || + allTagLocations[allTagLocations.length - 1][0] !== + tag.lastOpeningBracketAt) { + allTagLocations.push([startingPoint, i + 1]); + } + /* istanbul ignore else */ + if (!filteredTagLocations.length || + filteredTagLocations[filteredTagLocations.length - 1][0] !== + tag.lastOpeningBracketAt) { + filteredTagLocations.push([startingPoint, i + 1]); + } + const whiteSpaceCompensation = calculateWhitespaceToInsert(str, i, startingPoint, i + 1, startingPoint, i + 1); + let deleteUpTo = i + 1; + if (str[deleteUpTo] && !str[deleteUpTo].trim()) { + for (let z = deleteUpTo; z < len; z++) { + if (str[z].trim()) { + deleteUpTo = z; + break; + } + } + } + opts.cb({ + tag: tag, + deleteFrom: startingPoint, + deleteTo: deleteUpTo, + insert: whiteSpaceCompensation, + rangesArr: rangesToDelete, + proposedReturn: [ + startingPoint, + deleteUpTo, + whiteSpaceCompensation, + ], + }); + } + break; + } + } + } + } + // catch slash + // ------------------------------------------------------------------------- + if (str[i] === "/" && + !(tag.quotes && tag.quotes.value) && + Number.isInteger(tag.lastOpeningBracketAt) && + !Number.isInteger(tag.lastClosingBracketAt)) { + tag.slashPresent = i; + } + // catch double or single quotes + // ------------------------------------------------------------------------- + if (str[i] === '"' || str[i] === "'") { + if (tag.nameStarts && + tag.quotes && + tag.quotes.value && + tag.quotes.value === str[i]) { + // 1. finish assembling the "attrObj{}" + attrObj.valueEnds = i; + attrObj.value = str.slice(attrObj.valueStarts, i); + tag.attributes.push(attrObj); + // reset: + attrObj = {}; + // 2. finally, delete the quotes marker, we don't need it any more + tag.quotes = undefined; + // 3. if opts.dumpLinkHrefsNearby.enabled is on, catch href + let hrefVal; + if (opts.dumpLinkHrefsNearby.enabled && + // eslint-disable-next-line + tag.attributes.some((obj) => { + if (obj.name && obj.name.toLowerCase() === "href") { + hrefVal = `${opts.dumpLinkHrefsNearby.wrapHeads || ""}${obj.value}${opts.dumpLinkHrefsNearby.wrapTails || ""}`; + return true; + } + })) { + hrefDump = { + tagName: tag.name, + hrefValue: hrefVal, + openingTagEnds: undefined, + }; + } + } + else if (!tag.quotes && tag.nameStarts) { + // 1. if it's opening marker, record the type and location of quotes + tag.quotes = {}; + tag.quotes.value = str[i]; + tag.quotes.start = i; + // 2. start assembling the attribute object which we'll dump into tag.attributes[] array: + if (attrObj.nameStarts && + attrObj.nameEnds && + attrObj.nameEnds < i && + attrObj.nameStarts < i && + !attrObj.valueStarts) { + attrObj.name = str.slice(attrObj.nameStarts, attrObj.nameEnds); + } + } + } + // catch the ending of the tag name: + // ------------------------------------------------------------------------- + if (tag.nameStarts !== undefined && + tag.nameEnds === undefined && + (!str[i].trim() || !characterSuitableForNames(str[i]))) { + // 1. mark the name ending + tag.nameEnds = i; + // 2. extract the full name string + tag.name = str.slice(tag.nameStarts, tag.nameEnds + + /* istanbul ignore next */ + (!isClosingAt(i) && str[i] !== "/" && str[i + 1] === undefined + ? 1 + : 0)); + if ( + // if we caught "----" from "<----" or "---->", bail: + (str[tag.nameStarts - 1] !== "!" && // protection against <!-- + !tag.name.replace(/-/g, "").length) || + // if tag name starts with a number character + /^\d+$/.test(tag.name[0])) { + tag = {}; + continue; + } + if (isOpeningAt(i)) { + // process it because we need to tackle this new tag + calculateHrefToBeInserted(opts); + // calculateWhitespaceToInsert() API: + // str, // whole string + // currCharIdx, // current index + // fromIdx, // leftmost whitespace edge around tag + // toIdx, // rightmost whitespace edge around tag + // lastOpeningBracketAt, // tag actually starts here (<) + // lastClosingBracketAt // tag actually ends here (>) + const whiteSpaceCompensation = calculateWhitespaceToInsert(str, i, tag.leftOuterWhitespace, i, tag.lastOpeningBracketAt, i); + // only on pair tags, exclude the opening counterpart and closing + // counterpart if whole pair is to be deleted + if (opts.stripTogetherWithTheirContents.includes(tag.name) || + opts.stripTogetherWithTheirContents.includes("*")) { + /* istanbul ignore next */ + filteredTagLocations = filteredTagLocations.filter(([from, upto]) => !(from === tag.leftOuterWhitespace && upto === i)); + } + // console.log( + // `1011 ${`\u001b[${32}m${`PUSH`}\u001b[${39}m`} [${ + // tag.leftOuterWhitespace + // }, ${i}] to filteredTagLocations` + // ); + // filteredTagLocations.push([tag.leftOuterWhitespace, i]); + opts.cb({ + tag: tag, + deleteFrom: tag.leftOuterWhitespace, + deleteTo: i, + insert: `${whiteSpaceCompensation}${stringToInsertAfter}${whiteSpaceCompensation}`, + rangesArr: rangesToDelete, + proposedReturn: [ + tag.leftOuterWhitespace, + i, + `${whiteSpaceCompensation}${stringToInsertAfter}${whiteSpaceCompensation}`, + ], + }); + resetHrefMarkers(); + // also, + treatRangedTags(i, opts, rangesToDelete); + } + } + // catch beginning of an attribute value + // ------------------------------------------------------------------------- + if (tag.quotes && + tag.quotes.start && + tag.quotes.start < i && + !tag.quotes.end && + attrObj.nameEnds && + attrObj.equalsAt && + !attrObj.valueStarts) { + attrObj.valueStarts = i; + } + // catch rare cases when attributes name has some space after it, before equals + // ------------------------------------------------------------------------- + if (!tag.quotes && + attrObj.nameEnds && + str[i] === "=" && + !attrObj.valueStarts && + !attrObj.equalsAt) { + attrObj.equalsAt = i; + } + // catch the ending of the whole attribute + // ------------------------------------------------------------------------- + // for example, <a b c> this "c" ends "b" because it's not "equals" sign. + // We even anticipate for cases where whitespace anywhere between attribute parts: + // < article class = " something " / > + if (!tag.quotes && + attrObj.nameStarts && + attrObj.nameEnds && + !attrObj.valueStarts && + str[i].trim() && + str[i] !== "=") { + // if (!tag.attributes) { + // tag.attributes = []; + // } + tag.attributes.push(attrObj); + attrObj = {}; + } + // catch the ending of an attribute's name + // ------------------------------------------------------------------------- + if (!tag.quotes && attrObj.nameStarts && !attrObj.nameEnds) { + if (!str[i].trim()) { + attrObj.nameEnds = i; + attrObj.name = str.slice(attrObj.nameStarts, attrObj.nameEnds); + } + else if (str[i] === "=") { + /* istanbul ignore else */ + if (!attrObj.equalsAt) { + attrObj.nameEnds = i; + attrObj.equalsAt = i; + attrObj.name = str.slice(attrObj.nameStarts, attrObj.nameEnds); + } + } + else if (str[i] === "/" || isClosingAt(i)) { + attrObj.nameEnds = i; + attrObj.name = str.slice(attrObj.nameStarts, attrObj.nameEnds); + // if (!tag.attributes) { + // tag.attributes = []; + // } + tag.attributes.push(attrObj); + attrObj = {}; + } + else if (isOpeningAt(i)) { + // TODO - address both cases of onlyPlausible + attrObj.nameEnds = i; + attrObj.name = str.slice(attrObj.nameStarts, attrObj.nameEnds); + // if (!tag.attributes) { + // tag.attributes = []; + // } + tag.attributes.push(attrObj); + attrObj = {}; + } + } + // catch the beginning of an attribute's name + // ------------------------------------------------------------------------- + if (!tag.quotes && + tag.nameEnds < i && + !str[i - 1].trim() && + str[i].trim() && + !`<>/!`.includes(str[i]) && + !attrObj.nameStarts && + !tag.lastClosingBracketAt) { + attrObj.nameStarts = i; + } + // catch "< /" - turn off "onlyPlausible" + // ------------------------------------------------------------------------- + if (tag.lastOpeningBracketAt !== null && + tag.lastOpeningBracketAt < i && + str[i] === "/" && + tag.onlyPlausible) { + tag.onlyPlausible = false; + } + // catch character that follows an opening bracket: + // ------------------------------------------------------------------------- + if (tag.lastOpeningBracketAt !== null && + tag.lastOpeningBracketAt < i && + str[i] !== "/" // there can be closing slashes in various places, legit and not + ) { + // 1. identify, is it definite or just plausible tag + if (tag.onlyPlausible === undefined) { + if ((!str[i].trim() || isOpeningAt(i)) && !tag.slashPresent) { + tag.onlyPlausible = true; + } + else { + tag.onlyPlausible = false; + } + } + // 2. catch the beginning of the tag name. Consider custom HTML tag names + // and also known (X)HTML tags: + if (str[i].trim() && + tag.nameStarts === undefined && + !isOpeningAt(i) && + str[i] !== "/" && + !isClosingAt(i) && + str[i] !== "!") { + tag.nameStarts = i; + tag.nameContainsLetters = false; + } + } + // Catch letters in the tag name. Necessary to filter out false positives like "<------" + if (tag.nameStarts && + !tag.quotes && + str[i].toLowerCase() !== str[i].toUpperCase()) { + tag.nameContainsLetters = true; + } + // catch closing bracket + // ------------------------------------------------------------------------- + if ( + // it's closing bracket + isClosingAt(i) && + // + // precaution against JSP comparison + // kl <c:when test="${!empty ab.cd && ab.cd > 0.00}"> mn + // ^ + // we're here, it's false ending + // + notWithinAttrQuotes(tag, str, i)) { + if (tag.lastOpeningBracketAt !== undefined) { + // 1. mark the index + tag.lastClosingBracketAt = i; + // 2. reset the spacesChunkWhichFollowsTheClosingBracketEndsAt + spacesChunkWhichFollowsTheClosingBracketEndsAt = null; + // 3. push attrObj into tag.attributes[] + if (Object.keys(attrObj).length) { + // if (!tag.attributes) { + // tag.attributes = []; + // } + tag.attributes.push(attrObj); + attrObj = {}; + } + // 4. if opts.dumpLinkHrefsNearby.enabled is on and we just recorded an href, + if (opts.dumpLinkHrefsNearby.enabled && + hrefDump.tagName && + !hrefDump.openingTagEnds) { + // finish assembling the hrefDump{} + hrefDump.openingTagEnds = i; // or tag.lastClosingBracketAt, same + } + } + } + // catch the ending of the tag + // ------------------------------------------------------------------------- + // the tag is "released" into "rApply": + if (tag.lastOpeningBracketAt !== undefined) { + if (tag.lastClosingBracketAt === undefined) { + if (tag.lastOpeningBracketAt < i && + !isOpeningAt(i) && // to prevent cases like "text <<<<<< text" + (str[i + 1] === undefined || isOpeningAt(i + 1)) && + tag.nameContainsLetters) { + // find out the tag name earlier than dedicated tag name ending catching section: + // if (str[i + 1] === undefined) { + tag.name = str + .slice(tag.nameStarts, tag.nameEnds ? tag.nameEnds : i + 1) + .toLowerCase(); + // submit tag to allTagLocations + /* istanbul ignore else */ + if (!allTagLocations.length || + allTagLocations[allTagLocations.length - 1][0] !== + tag.lastOpeningBracketAt) { + allTagLocations.push([tag.lastOpeningBracketAt, i + 1]); + } + if ( + // if it's an ignored tag + opts.ignoreTags.includes(tag.name) || + // or just plausible and unrecognised + (tag.onlyPlausible && !definitelyTagNames.has(tag.name))) { + tag = {}; + attrObj = {}; + continue; + } + // if the tag is only plausible (there's space after opening bracket) and it's not among + // recognised tags, leave it as it is: + if (((definitelyTagNames.has(tag.name) || + singleLetterTags.has(tag.name)) && + (tag.onlyPlausible === false || + (tag.onlyPlausible === true && tag.attributes.length))) || + str[i + 1] === undefined) { + calculateHrefToBeInserted(opts); + const whiteSpaceCompensation = calculateWhitespaceToInsert(str, i, tag.leftOuterWhitespace, i + 1, tag.lastOpeningBracketAt, tag.lastClosingBracketAt); + opts.cb({ + tag: tag, + deleteFrom: tag.leftOuterWhitespace, + deleteTo: i + 1, + insert: `${whiteSpaceCompensation}${stringToInsertAfter}${whiteSpaceCompensation}`, + rangesArr: rangesToDelete, + proposedReturn: [ + tag.leftOuterWhitespace, + i + 1, + `${whiteSpaceCompensation}${stringToInsertAfter}${whiteSpaceCompensation}`, + ], + }); + resetHrefMarkers(); + // also, + treatRangedTags(i, opts, rangesToDelete); + } + /* istanbul ignore else */ + if (!filteredTagLocations.length || + (filteredTagLocations[filteredTagLocations.length - 1][0] !== + tag.lastOpeningBracketAt && + filteredTagLocations[filteredTagLocations.length - 1][1] !== + i + 1)) { + // filter out opening/closing tag pair because whole chunk + // from opening's opening to closing's closing will be pushed + if (opts.stripTogetherWithTheirContents.includes(tag.name) || + opts.stripTogetherWithTheirContents.includes("*")) { + // get the last opening counterpart of the pair + // iterate rangedOpeningTags from the, pick the first + // ranged opening tag whose name is same like current, closing's + let lastRangedOpeningTag; + for (let z = rangedOpeningTags.length; z--;) { + /* istanbul ignore else */ + if (rangedOpeningTags[z].name === tag.name) { + lastRangedOpeningTag = rangedOpeningTags[z]; + } + } + /* istanbul ignore else */ + if (lastRangedOpeningTag) { + filteredTagLocations = filteredTagLocations.filter(([from]) => from !== lastRangedOpeningTag.lastOpeningBracketAt); + filteredTagLocations.push([ + lastRangedOpeningTag.lastOpeningBracketAt, + i + 1, + ]); + } + else { + /* istanbul ignore next */ + filteredTagLocations.push([tag.lastOpeningBracketAt, i + 1]); + } + } + else { + // if it's not ranged tag, just push it as it is to filteredTagLocations + filteredTagLocations.push([tag.lastOpeningBracketAt, i + 1]); + } + } + } + } + else if ((i > tag.lastClosingBracketAt && str[i].trim()) || + str[i + 1] === undefined) { + // case 2. closing bracket HAS BEEN met + // we'll look for a non-whitespace character and delete up to it + // BUT, we'll wipe the tag object only if that non-whitespace character + // is not a ">". This way we'll catch and delete sequences of closing brackets. + // part 1. + let endingRangeIndex = tag.lastClosingBracketAt === i ? i + 1 : i; + if (opts.trimOnlySpaces && + endingRangeIndex === len - 1 && + spacesChunkWhichFollowsTheClosingBracketEndsAt !== null && + spacesChunkWhichFollowsTheClosingBracketEndsAt < i) { + endingRangeIndex = spacesChunkWhichFollowsTheClosingBracketEndsAt; + } + // if it's a dodgy suspicious tag where space follows opening bracket, there's an extra requirement + // for this tag to be considered a tag - there has to be at least one attribute with equals if + // the tag name is not recognised. + // submit tag to allTagLocations + /* istanbul ignore else */ + if (!allTagLocations.length || + allTagLocations[allTagLocations.length - 1][0] !== + tag.lastOpeningBracketAt) { + allTagLocations.push([ + tag.lastOpeningBracketAt, + tag.lastClosingBracketAt + 1, + ]); + } + if ((!onlyStripTagsMode && opts.ignoreTags.includes(tag.name)) || + (onlyStripTagsMode && !opts.onlyStripTags.includes(tag.name))) { + // ping the callback with nulls: + opts.cb({ + tag: tag, + deleteFrom: null, + deleteTo: null, + insert: null, + rangesArr: rangesToDelete, + proposedReturn: null, + }); + // don't submit the tag onto "filteredTagLocations" + // then reset: + tag = {}; + attrObj = {}; + // continue; + } + else if (!tag.onlyPlausible || + // tag name is recognised and there are no attributes: + (tag.attributes.length === 0 && + tag.name && + (definitelyTagNames.has(tag.name.toLowerCase()) || + singleLetterTags.has(tag.name.toLowerCase()))) || + // OR there is at least one equals that follow the attribute's name: + (tag.attributes && + tag.attributes.some((attrObj2) => attrObj2.equalsAt))) { + // submit tag to filteredTagLocations + /* istanbul ignore else */ + if (!filteredTagLocations.length || + filteredTagLocations[filteredTagLocations.length - 1][0] !== + tag.lastOpeningBracketAt) { + filteredTagLocations.push([ + tag.lastOpeningBracketAt, + tag.lastClosingBracketAt + 1, + ]); + } + // if this was an ignored tag name, algorithm would have bailed earlier, + // in stage "catch the ending of the tag name". + const whiteSpaceCompensation = calculateWhitespaceToInsert(str, i, tag.leftOuterWhitespace, endingRangeIndex, tag.lastOpeningBracketAt, tag.lastClosingBracketAt); + // calculate optional opts.dumpLinkHrefsNearby.enabled HREF to insert + stringToInsertAfter = ""; + hrefInsertionActive = false; + calculateHrefToBeInserted(opts); + let insert; + if (isStr(stringToInsertAfter) && stringToInsertAfter.length) { + insert = `${whiteSpaceCompensation}${stringToInsertAfter}${ + /* istanbul ignore next */ + whiteSpaceCompensation === "\n\n" ? "\n" : whiteSpaceCompensation}`; + } + else { + insert = whiteSpaceCompensation; + } + if (tag.leftOuterWhitespace === 0 || + !right(str, endingRangeIndex - 1)) { + insert = ""; + } + // pass the range onto the callback function, be it default or user's + opts.cb({ + tag: tag, + deleteFrom: tag.leftOuterWhitespace, + deleteTo: endingRangeIndex, + insert, + rangesArr: rangesToDelete, + proposedReturn: [tag.leftOuterWhitespace, endingRangeIndex, insert], + }); + resetHrefMarkers(); + // also, + treatRangedTags(i, opts, rangesToDelete); + } + else { + tag = {}; + } + // part 2. + if (!isClosingAt(i)) { + tag = {}; + } + } + } + // catch an opening bracket + // ------------------------------------------------------------------------- + if (isOpeningAt(i) && + !isOpeningAt(i - 1) && + !`'"`.includes(str[i + 1]) && + (!`'"`.includes(str[i + 2]) || /\w/.test(str[i + 1])) && + // + // precaution JSP, + // against <c: + !(str[i + 1] === "c" && str[i + 2] === ":") && + // against <fmt: + !(str[i + 1] === "f" && + str[i + 2] === "m" && + str[i + 3] === "t" && + str[i + 4] === ":") && + // against <sql: + !(str[i + 1] === "s" && + str[i + 2] === "q" && + str[i + 3] === "l" && + str[i + 4] === ":") && + // against <x: + !(str[i + 1] === "x" && str[i + 2] === ":") && + // against <fn: + !(str[i + 1] === "f" && str[i + 2] === "n" && str[i + 3] === ":") && + // + // kl <c:when test="${!empty ab.cd && ab.cd < 0.00}"> mn + // ^ + // we're here, it's false alarm + notWithinAttrQuotes(tag, str, i)) { + // cater sequences of opening brackets "<<<<div>>>" + if (isClosingAt(right(str, i))) { + // cater cases like: "<><><>" + continue; + } + else { + // 1. Before (re)setting flags, check, do we have a case of a tag with a + // missing closing bracket, and this is a new tag following it. + if (tag.nameEnds && tag.nameEnds < i && !tag.lastClosingBracketAt) { + if ((tag.onlyPlausible === true && + tag.attributes && + tag.attributes.length) || + tag.onlyPlausible === false) { + // tag.onlyPlausible can be undefined too + const whiteSpaceCompensation = calculateWhitespaceToInsert(str, i, tag.leftOuterWhitespace, i, tag.lastOpeningBracketAt, i); + opts.cb({ + tag: tag, + deleteFrom: tag.leftOuterWhitespace, + deleteTo: i, + insert: whiteSpaceCompensation, + rangesArr: rangesToDelete, + proposedReturn: [ + tag.leftOuterWhitespace, + i, + whiteSpaceCompensation, + ], + }); + // also, + treatRangedTags(i, opts, rangesToDelete); + // then, for continuity, mark everything up accordingly if it's a new bracket: + tag = {}; + attrObj = {}; + } + } + // 2. if new tag starts, reset: + if (tag.lastOpeningBracketAt !== undefined && + tag.onlyPlausible && + tag.name && + !tag.quotes) { + // reset: + tag.lastOpeningBracketAt = undefined; + tag.name = undefined; + tag.onlyPlausible = false; + } + if ((tag.lastOpeningBracketAt === undefined || !tag.onlyPlausible) && + !tag.quotes) { + tag.lastOpeningBracketAt = i; + tag.slashPresent = false; + tag.attributes = []; + // since 2.1.0 we started to care about not trimming outer whitespace which is not spaces. + // For example, " \t <a> \n ". Tag's whitespace boundaries should not extend to string + // edges but until "\t" on the left and "\n" on the right IF opts.trimOnlySpaces is on. + if (chunkOfWhitespaceStartsAt === null) { + tag.leftOuterWhitespace = i; + } + else if (opts.trimOnlySpaces && chunkOfWhitespaceStartsAt === 0) { + // if whitespace extends to the beginning of a string, there's a risk it might include + // not only spaces. To fix that, switch to space-only range marker: + /* istanbul ignore next */ + tag.leftOuterWhitespace = chunkOfSpacesStartsAt || i; + } + else { + tag.leftOuterWhitespace = chunkOfWhitespaceStartsAt; + } + // tag.leftOuterWhitespace = + // chunkOfWhitespaceStartsAt === null ? i : chunkOfWhitespaceStartsAt; + // tend the HTML comments: <!-- --> or CDATA: <![CDATA[ ... ]]> + // if opening comment tag is detected, traverse forward aggressively + // until EOL or "-->" is reached and offset outer index "i". + if (`${str[i + 1]}${str[i + 2]}${str[i + 3]}` === "!--" || + `${str[i + 1]}${str[i + 2]}${str[i + 3]}${str[i + 4]}${str[i + 5]}${str[i + 6]}${str[i + 7]}${str[i + 8]}` === "![CDATA[") { + // make a note which one it is: + let cdata = true; + if (str[i + 2] === "-") { + cdata = false; + } + let closingFoundAt; + for (let y = i; y < len; y++) { + if ((!closingFoundAt && + cdata && + `${str[y - 2]}${str[y - 1]}${str[y]}` === "]]>") || + (!cdata && `${str[y - 2]}${str[y - 1]}${str[y]}` === "-->")) { + closingFoundAt = y; + } + if (closingFoundAt && + ((closingFoundAt < y && str[y].trim()) || + str[y + 1] === undefined)) { + let rangeEnd = y; + if ((str[y + 1] === undefined && !str[y].trim()) || + str[y] === ">") { + rangeEnd += 1; + } + // submit the tag + /* istanbul ignore else */ + if (!allTagLocations.length || + allTagLocations[allTagLocations.length - 1][0] !== + tag.lastOpeningBracketAt) { + allTagLocations.push([ + tag.lastOpeningBracketAt, + closingFoundAt + 1, + ]); + } + /* istanbul ignore else */ + if (!filteredTagLocations.length || + filteredTagLocations[filteredTagLocations.length - 1][0] !== + tag.lastOpeningBracketAt) { + filteredTagLocations.push([ + tag.lastOpeningBracketAt, + closingFoundAt + 1, + ]); + } + const whiteSpaceCompensation = calculateWhitespaceToInsert(str, y, tag.leftOuterWhitespace, rangeEnd, tag.lastOpeningBracketAt, closingFoundAt); + opts.cb({ + tag: tag, + deleteFrom: tag.leftOuterWhitespace, + deleteTo: rangeEnd, + insert: whiteSpaceCompensation, + rangesArr: rangesToDelete, + proposedReturn: [ + tag.leftOuterWhitespace, + rangeEnd, + whiteSpaceCompensation, + ], + }); + // offset: + i = y - 1; + if (str[y] === ">") { + i = y; + } + // resets: + tag = {}; + attrObj = {}; + // finally, + break; + } + } + } + } + } + } + // catch whitespace + // ------------------------------------------------------------------------- + if (!str[i].trim()) { + // 1. catch chunk boundaries: + if (chunkOfWhitespaceStartsAt === null) { + chunkOfWhitespaceStartsAt = i; + if (tag.lastOpeningBracketAt !== undefined && + tag.lastOpeningBracketAt < i && + tag.nameStarts && + tag.nameStarts < tag.lastOpeningBracketAt && + i === tag.lastOpeningBracketAt + 1 && + // insurance against tail part of ranged tag being deleted: + !rangedOpeningTags.some( + // eslint-disable-next-line no-loop-func + (rangedTagObj) => rangedTagObj.name === tag.name)) { + tag.onlyPlausible = true; + tag.name = undefined; + tag.nameStarts = undefined; + } + } + } + else if (chunkOfWhitespaceStartsAt !== null) { + // 1. piggyback the catching of the attributes with equal and no value + if (!tag.quotes && + attrObj.equalsAt > chunkOfWhitespaceStartsAt - 1 && + attrObj.nameEnds && + attrObj.equalsAt > attrObj.nameEnds && + str[i] !== '"' && + str[i] !== "'") { + /* istanbul ignore else */ + if (lodash_isplainobject(attrObj)) { + tag.attributes.push(attrObj); + } + // reset: + attrObj = {}; + tag.equalsSpottedAt = undefined; + } + // 2. reset whitespace marker + chunkOfWhitespaceStartsAt = null; + } + // catch spaces-only chunks (needed for outer trim option opts.trimOnlySpaces) + // ------------------------------------------------------------------------- + if (str[i] === " ") { + // 1. catch spaces boundaries: + if (chunkOfSpacesStartsAt === null) { + chunkOfSpacesStartsAt = i; + } + } + else if (chunkOfSpacesStartsAt !== null) { + // 2. reset the marker + chunkOfSpacesStartsAt = null; + } + // log all + // ------------------------------------------------------------------------- + // console.log( + // `${`\u001b[${33}m${`chunkOfSpacesStartsAt`}\u001b[${39}m`} = ${JSON.stringify( + // chunkOfSpacesStartsAt, + // null, + // 4 + // )}` + // ); + // console.log( + // `${`\u001b[${33}m${`chunkOfWhitespaceStartsAt`}\u001b[${39}m`} = ${JSON.stringify( + // chunkOfWhitespaceStartsAt, + // null, + // 4 + // )}` + // ); + } + // trim but in ranges + // first tackle the beginning on the string + if (str && + // if only spaces were meant to be trimmed, + ((opts.trimOnlySpaces && + // and first character is a space + str[0] === " ") || + // if normal trim is requested + (!opts.trimOnlySpaces && + // and the first character is whitespace character + !str[0].trim()))) { + for (let i = 0, len = str.length; i < len; i++) { + if ((opts.trimOnlySpaces && str[i] !== " ") || + (!opts.trimOnlySpaces && str[i].trim())) { + rangesToDelete.push([0, i]); + break; + } + else if (!str[i + 1]) { + // if end has been reached and whole string has been trimmable + rangesToDelete.push([0, i + 1]); + } + } + } + if (str && + // if only spaces were meant to be trimmed, + ((opts.trimOnlySpaces && + // and last character is a space + str[str.length - 1] === " ") || + // if normal trim is requested + (!opts.trimOnlySpaces && + // and the last character is whitespace character + !str[str.length - 1].trim()))) { + for (let i = str.length; i--;) { + if ((opts.trimOnlySpaces && str[i] !== " ") || + (!opts.trimOnlySpaces && str[i].trim())) { + rangesToDelete.push([i + 1, str.length]); + break; + } + // don't tackle end-to-end because it would have been already caught on the + // start-to-end direction loop above. + } + } + // last correction, imagine we've got text-whitespace-tag. + // That last part "tag" was removed but "whitespace" in between is on the left. + // We need to trim() that too if applicable. + // By now we'll be able to tell, is starting/ending range array touching + // the start (index 0) or end (str.length - 1) character indexes, and if so, + // their inner sides will need to be trimmed accordingly, considering the + // "opts.trimOnlySpaces" of course. + const curr = rangesToDelete.current(); + if ((!originalOpts || !originalOpts.cb) && curr) { + // check front - the first range of gathered ranges, does it touch start (0) + if (curr[0] && !curr[0][0]) { + curr[0][1]; + // check the character at str[startingIdx] + // manually edit Ranges class: + rangesToDelete.ranges[0] = [ + rangesToDelete.ranges[0][0], + rangesToDelete.ranges[0][1], + ]; + } + // check end - the last range of gathered ranges, does it touch the end (str.length) + // PS. remember ending is not inclusive, so ranges covering the whole ending + // would go up to str.length, not up to str.length - 1! + if (curr[curr.length - 1] && curr[curr.length - 1][1] === str.length) { + curr[curr.length - 1][0]; + // check character at str[startingIdx - 1] + // remove third element from the last range "what to add" - because + // ranges will crop aggressively, covering all whitespace, but they + // then restore missing spaces (in which case it's not missing). + // We already have tight crop, we just need to remove that "what to add" + // third element. + // hard edit: + /* istanbul ignore else */ + if (rangesToDelete.ranges) { + let startingIdx2 = rangesToDelete.ranges[rangesToDelete.ranges.length - 1][0]; + if (str[startingIdx2 - 1] && + ((opts.trimOnlySpaces && str[startingIdx2 - 1] === " ") || + (!opts.trimOnlySpaces && !str[startingIdx2 - 1].trim()))) { + startingIdx2 -= 1; + } + const backupWhatToAdd = rangesToDelete.ranges[rangesToDelete.ranges.length - 1][2]; + rangesToDelete.ranges[rangesToDelete.ranges.length - 1] = [ + startingIdx2, + rangesToDelete.ranges[rangesToDelete.ranges.length - 1][1], + ]; + // for cases of opts.dumpLinkHrefsNearby + if (backupWhatToAdd && backupWhatToAdd.trim()) { + rangesToDelete.ranges[rangesToDelete.ranges.length - 1].push(backupWhatToAdd.trimEnd()); + } + } + } + } + const res = { + log: { + timeTakenInMilliseconds: Date.now() - start, + }, + result: rApply(str, rangesToDelete.current()), + ranges: rangesToDelete.current(), + allTagLocations, + filteredTagLocations, + }; + return res; +} + +exports.defaults = defaults; +exports.stripHtml = stripHtml; +exports.version = version; + +Object.defineProperty(exports, '__esModule', { value: true }); + +}))); 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