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-rw-r--r--node_modules/regenerate/regenerate.js1209
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diff --git a/node_modules/regenerate/regenerate.js b/node_modules/regenerate/regenerate.js
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-/*! https://mths.be/regenerate v1.4.2 by @mathias | MIT license */
-;(function(root) {
-
- // Detect free variables `exports`.
- var freeExports = typeof exports == 'object' && exports;
-
- // Detect free variable `module`.
- var freeModule = typeof module == 'object' && module &&
- module.exports == freeExports && module;
-
- // Detect free variable `global`, from Node.js/io.js or Browserified code,
- // and use it as `root`.
- var freeGlobal = typeof global == 'object' && global;
- if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
- root = freeGlobal;
- }
-
- /*--------------------------------------------------------------------------*/
-
- var ERRORS = {
- 'rangeOrder': 'A range\u2019s `stop` value must be greater than or equal ' +
- 'to the `start` value.',
- 'codePointRange': 'Invalid code point value. Code points range from ' +
- 'U+000000 to U+10FFFF.'
- };
-
- // https://mathiasbynens.be/notes/javascript-encoding#surrogate-pairs
- var HIGH_SURROGATE_MIN = 0xD800;
- var HIGH_SURROGATE_MAX = 0xDBFF;
- var LOW_SURROGATE_MIN = 0xDC00;
- var LOW_SURROGATE_MAX = 0xDFFF;
-
- // In Regenerate output, `\0` is never preceded by `\` because we sort by
- // code point value, so let’s keep this regular expression simple.
- var regexNull = /\\x00([^0123456789]|$)/g;
-
- var object = {};
- var hasOwnProperty = object.hasOwnProperty;
- var extend = function(destination, source) {
- var key;
- for (key in source) {
- if (hasOwnProperty.call(source, key)) {
- destination[key] = source[key];
- }
- }
- return destination;
- };
-
- var forEach = function(array, callback) {
- var index = -1;
- var length = array.length;
- while (++index < length) {
- callback(array[index], index);
- }
- };
-
- var toString = object.toString;
- var isArray = function(value) {
- return toString.call(value) == '[object Array]';
- };
- var isNumber = function(value) {
- return typeof value == 'number' ||
- toString.call(value) == '[object Number]';
- };
-
- // This assumes that `number` is a positive integer that `toString()`s nicely
- // (which is the case for all code point values).
- var zeroes = '0000';
- var pad = function(number, totalCharacters) {
- var string = String(number);
- return string.length < totalCharacters
- ? (zeroes + string).slice(-totalCharacters)
- : string;
- };
-
- var hex = function(number) {
- return Number(number).toString(16).toUpperCase();
- };
-
- var slice = [].slice;
-
- /*--------------------------------------------------------------------------*/
-
- var dataFromCodePoints = function(codePoints) {
- var index = -1;
- var length = codePoints.length;
- var max = length - 1;
- var result = [];
- var isStart = true;
- var tmp;
- var previous = 0;
- while (++index < length) {
- tmp = codePoints[index];
- if (isStart) {
- result.push(tmp);
- previous = tmp;
- isStart = false;
- } else {
- if (tmp == previous + 1) {
- if (index != max) {
- previous = tmp;
- continue;
- } else {
- isStart = true;
- result.push(tmp + 1);
- }
- } else {
- // End the previous range and start a new one.
- result.push(previous + 1, tmp);
- previous = tmp;
- }
- }
- }
- if (!isStart) {
- result.push(tmp + 1);
- }
- return result;
- };
-
- var dataRemove = function(data, codePoint) {
- // Iterate over the data per `(start, end)` pair.
- var index = 0;
- var start;
- var end;
- var length = data.length;
- while (index < length) {
- start = data[index];
- end = data[index + 1];
- if (codePoint >= start && codePoint < end) {
- // Modify this pair.
- if (codePoint == start) {
- if (end == start + 1) {
- // Just remove `start` and `end`.
- data.splice(index, 2);
- return data;
- } else {
- // Just replace `start` with a new value.
- data[index] = codePoint + 1;
- return data;
- }
- } else if (codePoint == end - 1) {
- // Just replace `end` with a new value.
- data[index + 1] = codePoint;
- return data;
- } else {
- // Replace `[start, end]` with `[startA, endA, startB, endB]`.
- data.splice(index, 2, start, codePoint, codePoint + 1, end);
- return data;
- }
- }
- index += 2;
- }
- return data;
- };
-
- var dataRemoveRange = function(data, rangeStart, rangeEnd) {
- if (rangeEnd < rangeStart) {
- throw Error(ERRORS.rangeOrder);
- }
- // Iterate over the data per `(start, end)` pair.
- var index = 0;
- var start;
- var end;
- while (index < data.length) {
- start = data[index];
- end = data[index + 1] - 1; // Note: the `- 1` makes `end` inclusive.
-
- // Exit as soon as no more matching pairs can be found.
- if (start > rangeEnd) {
- return data;
- }
-
- // Check if this range pair is equal to, or forms a subset of, the range
- // to be removed.
- // E.g. we have `[0, 11, 40, 51]` and want to remove 0-10 → `[40, 51]`.
- // E.g. we have `[40, 51]` and want to remove 0-100 → `[]`.
- if (rangeStart <= start && rangeEnd >= end) {
- // Remove this pair.
- data.splice(index, 2);
- continue;
- }
-
- // Check if both `rangeStart` and `rangeEnd` are within the bounds of
- // this pair.
- // E.g. we have `[0, 11]` and want to remove 4-6 → `[0, 4, 7, 11]`.
- if (rangeStart >= start && rangeEnd < end) {
- if (rangeStart == start) {
- // Replace `[start, end]` with `[startB, endB]`.
- data[index] = rangeEnd + 1;
- data[index + 1] = end + 1;
- return data;
- }
- // Replace `[start, end]` with `[startA, endA, startB, endB]`.
- data.splice(index, 2, start, rangeStart, rangeEnd + 1, end + 1);
- return data;
- }
-
- // Check if only `rangeStart` is within the bounds of this pair.
- // E.g. we have `[0, 11]` and want to remove 4-20 → `[0, 4]`.
- if (rangeStart >= start && rangeStart <= end) {
- // Replace `end` with `rangeStart`.
- data[index + 1] = rangeStart;
- // Note: we cannot `return` just yet, in case any following pairs still
- // contain matching code points.
- // E.g. we have `[0, 11, 14, 31]` and want to remove 4-20
- // → `[0, 4, 21, 31]`.
- }
-
- // Check if only `rangeEnd` is within the bounds of this pair.
- // E.g. we have `[14, 31]` and want to remove 4-20 → `[21, 31]`.
- else if (rangeEnd >= start && rangeEnd <= end) {
- // Just replace `start`.
- data[index] = rangeEnd + 1;
- return data;
- }
-
- index += 2;
- }
- return data;
- };
-
- var dataAdd = function(data, codePoint) {
- // Iterate over the data per `(start, end)` pair.
- var index = 0;
- var start;
- var end;
- var lastIndex = null;
- var length = data.length;
- if (codePoint < 0x0 || codePoint > 0x10FFFF) {
- throw RangeError(ERRORS.codePointRange);
- }
- while (index < length) {
- start = data[index];
- end = data[index + 1];
-
- // Check if the code point is already in the set.
- if (codePoint >= start && codePoint < end) {
- return data;
- }
-
- if (codePoint == start - 1) {
- // Just replace `start` with a new value.
- data[index] = codePoint;
- return data;
- }
-
- // At this point, if `start` is `greater` than `codePoint`, insert a new
- // `[start, end]` pair before the current pair, or after the current pair
- // if there is a known `lastIndex`.
- if (start > codePoint) {
- data.splice(
- lastIndex != null ? lastIndex + 2 : 0,
- 0,
- codePoint,
- codePoint + 1
- );
- return data;
- }
-
- if (codePoint == end) {
- // Check if adding this code point causes two separate ranges to become
- // a single range, e.g. `dataAdd([0, 4, 5, 10], 4)` → `[0, 10]`.
- if (codePoint + 1 == data[index + 2]) {
- data.splice(index, 4, start, data[index + 3]);
- return data;
- }
- // Else, just replace `end` with a new value.
- data[index + 1] = codePoint + 1;
- return data;
- }
- lastIndex = index;
- index += 2;
- }
- // The loop has finished; add the new pair to the end of the data set.
- data.push(codePoint, codePoint + 1);
- return data;
- };
-
- var dataAddData = function(dataA, dataB) {
- // Iterate over the data per `(start, end)` pair.
- var index = 0;
- var start;
- var end;
- var data = dataA.slice();
- var length = dataB.length;
- while (index < length) {
- start = dataB[index];
- end = dataB[index + 1] - 1;
- if (start == end) {
- data = dataAdd(data, start);
- } else {
- data = dataAddRange(data, start, end);
- }
- index += 2;
- }
- return data;
- };
-
- var dataRemoveData = function(dataA, dataB) {
- // Iterate over the data per `(start, end)` pair.
- var index = 0;
- var start;
- var end;
- var data = dataA.slice();
- var length = dataB.length;
- while (index < length) {
- start = dataB[index];
- end = dataB[index + 1] - 1;
- if (start == end) {
- data = dataRemove(data, start);
- } else {
- data = dataRemoveRange(data, start, end);
- }
- index += 2;
- }
- return data;
- };
-
- var dataAddRange = function(data, rangeStart, rangeEnd) {
- if (rangeEnd < rangeStart) {
- throw Error(ERRORS.rangeOrder);
- }
- if (
- rangeStart < 0x0 || rangeStart > 0x10FFFF ||
- rangeEnd < 0x0 || rangeEnd > 0x10FFFF
- ) {
- throw RangeError(ERRORS.codePointRange);
- }
- // Iterate over the data per `(start, end)` pair.
- var index = 0;
- var start;
- var end;
- var added = false;
- var length = data.length;
- while (index < length) {
- start = data[index];
- end = data[index + 1];
-
- if (added) {
- // The range has already been added to the set; at this point, we just
- // need to get rid of the following ranges in case they overlap.
-
- // Check if this range can be combined with the previous range.
- if (start == rangeEnd + 1) {
- data.splice(index - 1, 2);
- return data;
- }
-
- // Exit as soon as no more possibly overlapping pairs can be found.
- if (start > rangeEnd) {
- return data;
- }
-
- // E.g. `[0, 11, 12, 16]` and we’ve added 5-15, so we now have
- // `[0, 16, 12, 16]`. Remove the `12,16` part, as it lies within the
- // `0,16` range that was previously added.
- if (start >= rangeStart && start <= rangeEnd) {
- // `start` lies within the range that was previously added.
-
- if (end > rangeStart && end - 1 <= rangeEnd) {
- // `end` lies within the range that was previously added as well,
- // so remove this pair.
- data.splice(index, 2);
- index -= 2;
- // Note: we cannot `return` just yet, as there may still be other
- // overlapping pairs.
- } else {
- // `start` lies within the range that was previously added, but
- // `end` doesn’t. E.g. `[0, 11, 12, 31]` and we’ve added 5-15, so
- // now we have `[0, 16, 12, 31]`. This must be written as `[0, 31]`.
- // Remove the previously added `end` and the current `start`.
- data.splice(index - 1, 2);
- index -= 2;
- }
-
- // Note: we cannot return yet.
- }
-
- }
-
- else if (start == rangeEnd + 1 || start == rangeEnd) {
- data[index] = rangeStart;
- return data;
- }
-
- // Check if a new pair must be inserted *before* the current one.
- else if (start > rangeEnd) {
- data.splice(index, 0, rangeStart, rangeEnd + 1);
- return data;
- }
-
- else if (rangeStart >= start && rangeStart < end && rangeEnd + 1 <= end) {
- // The new range lies entirely within an existing range pair. No action
- // needed.
- return data;
- }
-
- else if (
- // E.g. `[0, 11]` and you add 5-15 → `[0, 16]`.
- (rangeStart >= start && rangeStart < end) ||
- // E.g. `[0, 3]` and you add 3-6 → `[0, 7]`.
- end == rangeStart
- ) {
- // Replace `end` with the new value.
- data[index + 1] = rangeEnd + 1;
- // Make sure the next range pair doesn’t overlap, e.g. `[0, 11, 12, 14]`
- // and you add 5-15 → `[0, 16]`, i.e. remove the `12,14` part.
- added = true;
- // Note: we cannot `return` just yet.
- }
-
- else if (rangeStart <= start && rangeEnd + 1 >= end) {
- // The new range is a superset of the old range.
- data[index] = rangeStart;
- data[index + 1] = rangeEnd + 1;
- added = true;
- }
-
- index += 2;
- }
- // The loop has finished without doing anything; add the new pair to the end
- // of the data set.
- if (!added) {
- data.push(rangeStart, rangeEnd + 1);
- }
- return data;
- };
-
- var dataContains = function(data, codePoint) {
- var index = 0;
- var length = data.length;
- // Exit early if `codePoint` is not within `data`’s overall range.
- var start = data[index];
- var end = data[length - 1];
- if (length >= 2) {
- if (codePoint < start || codePoint > end) {
- return false;
- }
- }
- // Iterate over the data per `(start, end)` pair.
- while (index < length) {
- start = data[index];
- end = data[index + 1];
- if (codePoint >= start && codePoint < end) {
- return true;
- }
- index += 2;
- }
- return false;
- };
-
- var dataIntersection = function(data, codePoints) {
- var index = 0;
- var length = codePoints.length;
- var codePoint;
- var result = [];
- while (index < length) {
- codePoint = codePoints[index];
- if (dataContains(data, codePoint)) {
- result.push(codePoint);
- }
- ++index;
- }
- return dataFromCodePoints(result);
- };
-
- var dataIsEmpty = function(data) {
- return !data.length;
- };
-
- var dataIsSingleton = function(data) {
- // Check if the set only represents a single code point.
- return data.length == 2 && data[0] + 1 == data[1];
- };
-
- var dataToArray = function(data) {
- // Iterate over the data per `(start, end)` pair.
- var index = 0;
- var start;
- var end;
- var result = [];
- var length = data.length;
- while (index < length) {
- start = data[index];
- end = data[index + 1];
- while (start < end) {
- result.push(start);
- ++start;
- }
- index += 2;
- }
- return result;
- };
-
- /*--------------------------------------------------------------------------*/
-
- // https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
- var floor = Math.floor;
- var highSurrogate = function(codePoint) {
- return parseInt(
- floor((codePoint - 0x10000) / 0x400) + HIGH_SURROGATE_MIN,
- 10
- );
- };
-
- var lowSurrogate = function(codePoint) {
- return parseInt(
- (codePoint - 0x10000) % 0x400 + LOW_SURROGATE_MIN,
- 10
- );
- };
-
- var stringFromCharCode = String.fromCharCode;
- var codePointToString = function(codePoint) {
- var string;
- // https://mathiasbynens.be/notes/javascript-escapes#single
- // Note: the `\b` escape sequence for U+0008 BACKSPACE in strings has a
- // different meaning in regular expressions (word boundary), so it cannot
- // be used here.
- if (codePoint == 0x09) {
- string = '\\t';
- }
- // Note: IE < 9 treats `'\v'` as `'v'`, so avoid using it.
- // else if (codePoint == 0x0B) {
- // string = '\\v';
- // }
- else if (codePoint == 0x0A) {
- string = '\\n';
- }
- else if (codePoint == 0x0C) {
- string = '\\f';
- }
- else if (codePoint == 0x0D) {
- string = '\\r';
- }
- else if (codePoint == 0x2D) {
- // https://mathiasbynens.be/notes/javascript-escapes#hexadecimal
- // Note: `-` (U+002D HYPHEN-MINUS) is escaped in this way rather
- // than by backslash-escaping, in case the output is used outside
- // of a character class in a `u` RegExp. /\-/u throws, but
- // /\x2D/u is fine.
- string = '\\x2D';
- }
- else if (codePoint == 0x5C) {
- string = '\\\\';
- }
- else if (
- codePoint == 0x24 ||
- (codePoint >= 0x28 && codePoint <= 0x2B) ||
- codePoint == 0x2E || codePoint == 0x2F ||
- codePoint == 0x3F ||
- (codePoint >= 0x5B && codePoint <= 0x5E) ||
- (codePoint >= 0x7B && codePoint <= 0x7D)
- ) {
- // The code point maps to an unsafe printable ASCII character;
- // backslash-escape it. Here’s the list of those symbols:
- //
- // $()*+./?[\]^{|}
- //
- // This matches SyntaxCharacters as well as `/` (U+002F SOLIDUS).
- // https://tc39.github.io/ecma262/#prod-SyntaxCharacter
- string = '\\' + stringFromCharCode(codePoint);
- }
- else if (codePoint >= 0x20 && codePoint <= 0x7E) {
- // The code point maps to one of these printable ASCII symbols
- // (including the space character):
- //
- // !"#%&',/0123456789:;<=>@ABCDEFGHIJKLMNO
- // PQRSTUVWXYZ_`abcdefghijklmnopqrstuvwxyz~
- //
- // These can safely be used directly.
- string = stringFromCharCode(codePoint);
- }
- else if (codePoint <= 0xFF) {
- string = '\\x' + pad(hex(codePoint), 2);
- }
- else { // `codePoint <= 0xFFFF` holds true.
- // https://mathiasbynens.be/notes/javascript-escapes#unicode
- string = '\\u' + pad(hex(codePoint), 4);
- }
-
- // There’s no need to account for astral symbols / surrogate pairs here,
- // since `codePointToString` is private and only used for BMP code points.
- // But if that’s what you need, just add an `else` block with this code:
- //
- // string = '\\u' + pad(hex(highSurrogate(codePoint)), 4)
- // + '\\u' + pad(hex(lowSurrogate(codePoint)), 4);
-
- return string;
- };
-
- var codePointToStringUnicode = function(codePoint) {
- if (codePoint <= 0xFFFF) {
- return codePointToString(codePoint);
- }
- return '\\u{' + codePoint.toString(16).toUpperCase() + '}';
- };
-
- var symbolToCodePoint = function(symbol) {
- var length = symbol.length;
- var first = symbol.charCodeAt(0);
- var second;
- if (
- first >= HIGH_SURROGATE_MIN && first <= HIGH_SURROGATE_MAX &&
- length > 1 // There is a next code unit.
- ) {
- // `first` is a high surrogate, and there is a next character. Assume
- // it’s a low surrogate (else it’s invalid usage of Regenerate anyway).
- second = symbol.charCodeAt(1);
- // https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
- return (first - HIGH_SURROGATE_MIN) * 0x400 +
- second - LOW_SURROGATE_MIN + 0x10000;
- }
- return first;
- };
-
- var createBMPCharacterClasses = function(data) {
- // Iterate over the data per `(start, end)` pair.
- var result = '';
- var index = 0;
- var start;
- var end;
- var length = data.length;
- if (dataIsSingleton(data)) {
- return codePointToString(data[0]);
- }
- while (index < length) {
- start = data[index];
- end = data[index + 1] - 1; // Note: the `- 1` makes `end` inclusive.
- if (start == end) {
- result += codePointToString(start);
- } else if (start + 1 == end) {
- result += codePointToString(start) + codePointToString(end);
- } else {
- result += codePointToString(start) + '-' + codePointToString(end);
- }
- index += 2;
- }
- return '[' + result + ']';
- };
-
- var createUnicodeCharacterClasses = function(data) {
- // Iterate over the data per `(start, end)` pair.
- var result = '';
- var index = 0;
- var start;
- var end;
- var length = data.length;
- if (dataIsSingleton(data)) {
- return codePointToStringUnicode(data[0]);
- }
- while (index < length) {
- start = data[index];
- end = data[index + 1] - 1; // Note: the `- 1` makes `end` inclusive.
- if (start == end) {
- result += codePointToStringUnicode(start);
- } else if (start + 1 == end) {
- result += codePointToStringUnicode(start) + codePointToStringUnicode(end);
- } else {
- result += codePointToStringUnicode(start) + '-' + codePointToStringUnicode(end);
- }
- index += 2;
- }
- return '[' + result + ']';
- };
-
- var splitAtBMP = function(data) {
- // Iterate over the data per `(start, end)` pair.
- var loneHighSurrogates = [];
- var loneLowSurrogates = [];
- var bmp = [];
- var astral = [];
- var index = 0;
- var start;
- var end;
- var length = data.length;
- while (index < length) {
- start = data[index];
- end = data[index + 1] - 1; // Note: the `- 1` makes `end` inclusive.
-
- if (start < HIGH_SURROGATE_MIN) {
-
- // The range starts and ends before the high surrogate range.
- // E.g. (0, 0x10).
- if (end < HIGH_SURROGATE_MIN) {
- bmp.push(start, end + 1);
- }
-
- // The range starts before the high surrogate range and ends within it.
- // E.g. (0, 0xD855).
- if (end >= HIGH_SURROGATE_MIN && end <= HIGH_SURROGATE_MAX) {
- bmp.push(start, HIGH_SURROGATE_MIN);
- loneHighSurrogates.push(HIGH_SURROGATE_MIN, end + 1);
- }
-
- // The range starts before the high surrogate range and ends in the low
- // surrogate range. E.g. (0, 0xDCFF).
- if (end >= LOW_SURROGATE_MIN && end <= LOW_SURROGATE_MAX) {
- bmp.push(start, HIGH_SURROGATE_MIN);
- loneHighSurrogates.push(HIGH_SURROGATE_MIN, HIGH_SURROGATE_MAX + 1);
- loneLowSurrogates.push(LOW_SURROGATE_MIN, end + 1);
- }
-
- // The range starts before the high surrogate range and ends after the
- // low surrogate range. E.g. (0, 0x10FFFF).
- if (end > LOW_SURROGATE_MAX) {
- bmp.push(start, HIGH_SURROGATE_MIN);
- loneHighSurrogates.push(HIGH_SURROGATE_MIN, HIGH_SURROGATE_MAX + 1);
- loneLowSurrogates.push(LOW_SURROGATE_MIN, LOW_SURROGATE_MAX + 1);
- if (end <= 0xFFFF) {
- bmp.push(LOW_SURROGATE_MAX + 1, end + 1);
- } else {
- bmp.push(LOW_SURROGATE_MAX + 1, 0xFFFF + 1);
- astral.push(0xFFFF + 1, end + 1);
- }
- }
-
- } else if (start >= HIGH_SURROGATE_MIN && start <= HIGH_SURROGATE_MAX) {
-
- // The range starts and ends in the high surrogate range.
- // E.g. (0xD855, 0xD866).
- if (end >= HIGH_SURROGATE_MIN && end <= HIGH_SURROGATE_MAX) {
- loneHighSurrogates.push(start, end + 1);
- }
-
- // The range starts in the high surrogate range and ends in the low
- // surrogate range. E.g. (0xD855, 0xDCFF).
- if (end >= LOW_SURROGATE_MIN && end <= LOW_SURROGATE_MAX) {
- loneHighSurrogates.push(start, HIGH_SURROGATE_MAX + 1);
- loneLowSurrogates.push(LOW_SURROGATE_MIN, end + 1);
- }
-
- // The range starts in the high surrogate range and ends after the low
- // surrogate range. E.g. (0xD855, 0x10FFFF).
- if (end > LOW_SURROGATE_MAX) {
- loneHighSurrogates.push(start, HIGH_SURROGATE_MAX + 1);
- loneLowSurrogates.push(LOW_SURROGATE_MIN, LOW_SURROGATE_MAX + 1);
- if (end <= 0xFFFF) {
- bmp.push(LOW_SURROGATE_MAX + 1, end + 1);
- } else {
- bmp.push(LOW_SURROGATE_MAX + 1, 0xFFFF + 1);
- astral.push(0xFFFF + 1, end + 1);
- }
- }
-
- } else if (start >= LOW_SURROGATE_MIN && start <= LOW_SURROGATE_MAX) {
-
- // The range starts and ends in the low surrogate range.
- // E.g. (0xDCFF, 0xDDFF).
- if (end >= LOW_SURROGATE_MIN && end <= LOW_SURROGATE_MAX) {
- loneLowSurrogates.push(start, end + 1);
- }
-
- // The range starts in the low surrogate range and ends after the low
- // surrogate range. E.g. (0xDCFF, 0x10FFFF).
- if (end > LOW_SURROGATE_MAX) {
- loneLowSurrogates.push(start, LOW_SURROGATE_MAX + 1);
- if (end <= 0xFFFF) {
- bmp.push(LOW_SURROGATE_MAX + 1, end + 1);
- } else {
- bmp.push(LOW_SURROGATE_MAX + 1, 0xFFFF + 1);
- astral.push(0xFFFF + 1, end + 1);
- }
- }
-
- } else if (start > LOW_SURROGATE_MAX && start <= 0xFFFF) {
-
- // The range starts and ends after the low surrogate range.
- // E.g. (0xFFAA, 0x10FFFF).
- if (end <= 0xFFFF) {
- bmp.push(start, end + 1);
- } else {
- bmp.push(start, 0xFFFF + 1);
- astral.push(0xFFFF + 1, end + 1);
- }
-
- } else {
-
- // The range starts and ends in the astral range.
- astral.push(start, end + 1);
-
- }
-
- index += 2;
- }
- return {
- 'loneHighSurrogates': loneHighSurrogates,
- 'loneLowSurrogates': loneLowSurrogates,
- 'bmp': bmp,
- 'astral': astral
- };
- };
-
- var optimizeSurrogateMappings = function(surrogateMappings) {
- var result = [];
- var tmpLow = [];
- var addLow = false;
- var mapping;
- var nextMapping;
- var highSurrogates;
- var lowSurrogates;
- var nextHighSurrogates;
- var nextLowSurrogates;
- var index = -1;
- var length = surrogateMappings.length;
- while (++index < length) {
- mapping = surrogateMappings[index];
- nextMapping = surrogateMappings[index + 1];
- if (!nextMapping) {
- result.push(mapping);
- continue;
- }
- highSurrogates = mapping[0];
- lowSurrogates = mapping[1];
- nextHighSurrogates = nextMapping[0];
- nextLowSurrogates = nextMapping[1];
-
- // Check for identical high surrogate ranges.
- tmpLow = lowSurrogates;
- while (
- nextHighSurrogates &&
- highSurrogates[0] == nextHighSurrogates[0] &&
- highSurrogates[1] == nextHighSurrogates[1]
- ) {
- // Merge with the next item.
- if (dataIsSingleton(nextLowSurrogates)) {
- tmpLow = dataAdd(tmpLow, nextLowSurrogates[0]);
- } else {
- tmpLow = dataAddRange(
- tmpLow,
- nextLowSurrogates[0],
- nextLowSurrogates[1] - 1
- );
- }
- ++index;
- mapping = surrogateMappings[index];
- highSurrogates = mapping[0];
- lowSurrogates = mapping[1];
- nextMapping = surrogateMappings[index + 1];
- nextHighSurrogates = nextMapping && nextMapping[0];
- nextLowSurrogates = nextMapping && nextMapping[1];
- addLow = true;
- }
- result.push([
- highSurrogates,
- addLow ? tmpLow : lowSurrogates
- ]);
- addLow = false;
- }
- return optimizeByLowSurrogates(result);
- };
-
- var optimizeByLowSurrogates = function(surrogateMappings) {
- if (surrogateMappings.length == 1) {
- return surrogateMappings;
- }
- var index = -1;
- var innerIndex = -1;
- while (++index < surrogateMappings.length) {
- var mapping = surrogateMappings[index];
- var lowSurrogates = mapping[1];
- var lowSurrogateStart = lowSurrogates[0];
- var lowSurrogateEnd = lowSurrogates[1];
- innerIndex = index; // Note: the loop starts at the next index.
- while (++innerIndex < surrogateMappings.length) {
- var otherMapping = surrogateMappings[innerIndex];
- var otherLowSurrogates = otherMapping[1];
- var otherLowSurrogateStart = otherLowSurrogates[0];
- var otherLowSurrogateEnd = otherLowSurrogates[1];
- if (
- lowSurrogateStart == otherLowSurrogateStart &&
- lowSurrogateEnd == otherLowSurrogateEnd &&
- otherLowSurrogates.length === 2
- ) {
- // Add the code points in the other item to this one.
- if (dataIsSingleton(otherMapping[0])) {
- mapping[0] = dataAdd(mapping[0], otherMapping[0][0]);
- } else {
- mapping[0] = dataAddRange(
- mapping[0],
- otherMapping[0][0],
- otherMapping[0][1] - 1
- );
- }
- // Remove the other, now redundant, item.
- surrogateMappings.splice(innerIndex, 1);
- --innerIndex;
- }
- }
- }
- return surrogateMappings;
- };
-
- var surrogateSet = function(data) {
- // Exit early if `data` is an empty set.
- if (!data.length) {
- return [];
- }
-
- // Iterate over the data per `(start, end)` pair.
- var index = 0;
- var start;
- var end;
- var startHigh;
- var startLow;
- var endHigh;
- var endLow;
- var surrogateMappings = [];
- var length = data.length;
- while (index < length) {
- start = data[index];
- end = data[index + 1] - 1;
-
- startHigh = highSurrogate(start);
- startLow = lowSurrogate(start);
- endHigh = highSurrogate(end);
- endLow = lowSurrogate(end);
-
- var startsWithLowestLowSurrogate = startLow == LOW_SURROGATE_MIN;
- var endsWithHighestLowSurrogate = endLow == LOW_SURROGATE_MAX;
- var complete = false;
-
- // Append the previous high-surrogate-to-low-surrogate mappings.
- // Step 1: `(startHigh, startLow)` to `(startHigh, LOW_SURROGATE_MAX)`.
- if (
- startHigh == endHigh ||
- startsWithLowestLowSurrogate && endsWithHighestLowSurrogate
- ) {
- surrogateMappings.push([
- [startHigh, endHigh + 1],
- [startLow, endLow + 1]
- ]);
- complete = true;
- } else {
- surrogateMappings.push([
- [startHigh, startHigh + 1],
- [startLow, LOW_SURROGATE_MAX + 1]
- ]);
- }
-
- // Step 2: `(startHigh + 1, LOW_SURROGATE_MIN)` to
- // `(endHigh - 1, LOW_SURROGATE_MAX)`.
- if (!complete && startHigh + 1 < endHigh) {
- if (endsWithHighestLowSurrogate) {
- // Combine step 2 and step 3.
- surrogateMappings.push([
- [startHigh + 1, endHigh + 1],
- [LOW_SURROGATE_MIN, endLow + 1]
- ]);
- complete = true;
- } else {
- surrogateMappings.push([
- [startHigh + 1, endHigh],
- [LOW_SURROGATE_MIN, LOW_SURROGATE_MAX + 1]
- ]);
- }
- }
-
- // Step 3. `(endHigh, LOW_SURROGATE_MIN)` to `(endHigh, endLow)`.
- if (!complete) {
- surrogateMappings.push([
- [endHigh, endHigh + 1],
- [LOW_SURROGATE_MIN, endLow + 1]
- ]);
- }
-
- index += 2;
- }
-
- // The format of `surrogateMappings` is as follows:
- //
- // [ surrogateMapping1, surrogateMapping2 ]
- //
- // i.e.:
- //
- // [
- // [ highSurrogates1, lowSurrogates1 ],
- // [ highSurrogates2, lowSurrogates2 ]
- // ]
- return optimizeSurrogateMappings(surrogateMappings);
- };
-
- var createSurrogateCharacterClasses = function(surrogateMappings) {
- var result = [];
- forEach(surrogateMappings, function(surrogateMapping) {
- var highSurrogates = surrogateMapping[0];
- var lowSurrogates = surrogateMapping[1];
- result.push(
- createBMPCharacterClasses(highSurrogates) +
- createBMPCharacterClasses(lowSurrogates)
- );
- });
- return result.join('|');
- };
-
- var createCharacterClassesFromData = function(data, bmpOnly, hasUnicodeFlag) {
- if (hasUnicodeFlag) {
- return createUnicodeCharacterClasses(data);
- }
- var result = [];
-
- var parts = splitAtBMP(data);
- var loneHighSurrogates = parts.loneHighSurrogates;
- var loneLowSurrogates = parts.loneLowSurrogates;
- var bmp = parts.bmp;
- var astral = parts.astral;
- var hasLoneHighSurrogates = !dataIsEmpty(loneHighSurrogates);
- var hasLoneLowSurrogates = !dataIsEmpty(loneLowSurrogates);
-
- var surrogateMappings = surrogateSet(astral);
-
- if (bmpOnly) {
- bmp = dataAddData(bmp, loneHighSurrogates);
- hasLoneHighSurrogates = false;
- bmp = dataAddData(bmp, loneLowSurrogates);
- hasLoneLowSurrogates = false;
- }
-
- if (!dataIsEmpty(bmp)) {
- // The data set contains BMP code points that are not high surrogates
- // needed for astral code points in the set.
- result.push(createBMPCharacterClasses(bmp));
- }
- if (surrogateMappings.length) {
- // The data set contains astral code points; append character classes
- // based on their surrogate pairs.
- result.push(createSurrogateCharacterClasses(surrogateMappings));
- }
- // https://gist.github.com/mathiasbynens/bbe7f870208abcfec860
- if (hasLoneHighSurrogates) {
- result.push(
- createBMPCharacterClasses(loneHighSurrogates) +
- // Make sure the high surrogates aren’t part of a surrogate pair.
- '(?![\\uDC00-\\uDFFF])'
- );
- }
- if (hasLoneLowSurrogates) {
- result.push(
- // It is not possible to accurately assert the low surrogates aren’t
- // part of a surrogate pair, since JavaScript regular expressions do
- // not support lookbehind.
- '(?:[^\\uD800-\\uDBFF]|^)' +
- createBMPCharacterClasses(loneLowSurrogates)
- );
- }
- return result.join('|');
- };
-
- /*--------------------------------------------------------------------------*/
-
- // `regenerate` can be used as a constructor (and new methods can be added to
- // its prototype) but also as a regular function, the latter of which is the
- // documented and most common usage. For that reason, it’s not capitalized.
- var regenerate = function(value) {
- if (arguments.length > 1) {
- value = slice.call(arguments);
- }
- if (this instanceof regenerate) {
- this.data = [];
- return value ? this.add(value) : this;
- }
- return (new regenerate).add(value);
- };
-
- regenerate.version = '1.4.2';
-
- var proto = regenerate.prototype;
- extend(proto, {
- 'add': function(value) {
- var $this = this;
- if (value == null) {
- return $this;
- }
- if (value instanceof regenerate) {
- // Allow passing other Regenerate instances.
- $this.data = dataAddData($this.data, value.data);
- return $this;
- }
- if (arguments.length > 1) {
- value = slice.call(arguments);
- }
- if (isArray(value)) {
- forEach(value, function(item) {
- $this.add(item);
- });
- return $this;
- }
- $this.data = dataAdd(
- $this.data,
- isNumber(value) ? value : symbolToCodePoint(value)
- );
- return $this;
- },
- 'remove': function(value) {
- var $this = this;
- if (value == null) {
- return $this;
- }
- if (value instanceof regenerate) {
- // Allow passing other Regenerate instances.
- $this.data = dataRemoveData($this.data, value.data);
- return $this;
- }
- if (arguments.length > 1) {
- value = slice.call(arguments);
- }
- if (isArray(value)) {
- forEach(value, function(item) {
- $this.remove(item);
- });
- return $this;
- }
- $this.data = dataRemove(
- $this.data,
- isNumber(value) ? value : symbolToCodePoint(value)
- );
- return $this;
- },
- 'addRange': function(start, end) {
- var $this = this;
- $this.data = dataAddRange($this.data,
- isNumber(start) ? start : symbolToCodePoint(start),
- isNumber(end) ? end : symbolToCodePoint(end)
- );
- return $this;
- },
- 'removeRange': function(start, end) {
- var $this = this;
- var startCodePoint = isNumber(start) ? start : symbolToCodePoint(start);
- var endCodePoint = isNumber(end) ? end : symbolToCodePoint(end);
- $this.data = dataRemoveRange(
- $this.data,
- startCodePoint,
- endCodePoint
- );
- return $this;
- },
- 'intersection': function(argument) {
- var $this = this;
- // Allow passing other Regenerate instances.
- // TODO: Optimize this by writing and using `dataIntersectionData()`.
- var array = argument instanceof regenerate ?
- dataToArray(argument.data) :
- argument;
- $this.data = dataIntersection($this.data, array);
- return $this;
- },
- 'contains': function(codePoint) {
- return dataContains(
- this.data,
- isNumber(codePoint) ? codePoint : symbolToCodePoint(codePoint)
- );
- },
- 'clone': function() {
- var set = new regenerate;
- set.data = this.data.slice(0);
- return set;
- },
- 'toString': function(options) {
- var result = createCharacterClassesFromData(
- this.data,
- options ? options.bmpOnly : false,
- options ? options.hasUnicodeFlag : false
- );
- if (!result) {
- // For an empty set, return something that can be inserted `/here/` to
- // form a valid regular expression. Avoid `(?:)` since that matches the
- // empty string.
- return '[]';
- }
- // Use `\0` instead of `\x00` where possible.
- return result.replace(regexNull, '\\0$1');
- },
- 'toRegExp': function(flags) {
- var pattern = this.toString(
- flags && flags.indexOf('u') != -1 ?
- { 'hasUnicodeFlag': true } :
- null
- );
- return RegExp(pattern, flags || '');
- },
- 'valueOf': function() { // Note: `valueOf` is aliased as `toArray`.
- return dataToArray(this.data);
- }
- });
-
- proto.toArray = proto.valueOf;
-
- // Some AMD build optimizers, like r.js, check for specific condition patterns
- // like the following:
- if (
- typeof define == 'function' &&
- typeof define.amd == 'object' &&
- define.amd
- ) {
- define(function() {
- return regenerate;
- });
- } else if (freeExports && !freeExports.nodeType) {
- if (freeModule) { // in Node.js, io.js, or RingoJS v0.8.0+
- freeModule.exports = regenerate;
- } else { // in Narwhal or RingoJS v0.7.0-
- freeExports.regenerate = regenerate;
- }
- } else { // in Rhino or a web browser
- root.regenerate = regenerate;
- }
-
-}(this));
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-23 20:21:55 +0000