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unicode.js
/** * unicode.js - east asian width and surrogate pairs * Copyright (c) 2013-2015, Christopher Jeffrey and contributors (MIT License). * https://github.com/chjj/blessed * Borrowed from vangie/east-asian-width, komagata/eastasianwidth, * and mathiasbynens/String.prototype.codePointAt. Licenses below. */ // east-asian-width // // Copyright (c) 2015 Vangie Du // https://github.com/vangie/east-asian-width // // Permission is hereby granted, free of charge, to any person // obtaining a copy of this software and associated documentation // files (the "Software"), to deal in the Software without // restriction, including without limitation the rights to use, // copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following // conditions: // // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES // OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR // OTHER DEALINGS IN THE SOFTWARE. // eastasianwidth // // Copyright (c) 2013, Masaki Komagata // https://github.com/komagata/eastasianwidth // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. // String.prototype.codePointAt // // Copyright Mathias Bynens <https://mathiasbynens.be/> // https://github.com/mathiasbynens/String.prototype.codePointAt // // Permission is hereby granted, free of charge, to any person obtaining // a copy of this software and associated documentation files (the // "Software"), to deal in the Software without restriction, including // without limitation the rights to use, copy, modify, merge, publish, // distribute, sublicense, and/or sell copies of the Software, and to // permit persons to whom the Software is furnished to do so, subject to // the following conditions: // // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // String.fromCodePoint // // Copyright Mathias Bynens <https://mathiasbynens.be/> // https://github.com/mathiasbynens/String.fromCodePoint // // Permission is hereby granted, free of charge, to any person obtaining // a copy of this software and associated documentation files (the // "Software"), to deal in the Software without restriction, including // without limitation the rights to use, copy, modify, merge, publish, // distribute, sublicense, and/or sell copies of the Software, and to // permit persons to whom the Software is furnished to do so, subject to // the following conditions: // // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. var stringFromCharCode = String.fromCharCode; var floor = Math.floor; /** * Wide, Surrogates, and Combining */ exports.charWidth = function(str, i) { var point = typeof str !== 'number' ? exports.codePointAt(str, i || 0) : str; // nul if (point === 0) return 0; // tab if (point === 0x09) { if (!exports.blessed) { exports.blessed = require('../'); } return exports.blessed.screen.global ? exports.blessed.screen.global.tabc.length : 8; } // 8-bit control characters (2-width according to unicode??) if (point < 32 || (point >= 0x7f && point < 0xa0)) { return 0; } // search table of non-spacing characters // is ucs combining or C0/C1 control character if (exports.combining[point]) { return 0; } // check for double-wide // if (point >= 0x1100 // && (point <= 0x115f // Hangul Jamo init. consonants // || point === 0x2329 || point === 0x232a // || (point >= 0x2e80 && point <= 0xa4cf // && point !== 0x303f) // CJK ... Yi // || (point >= 0xac00 && point <= 0xd7a3) // Hangul Syllables // || (point >= 0xf900 && point <= 0xfaff) // CJK Compatibility Ideographs // || (point >= 0xfe10 && point <= 0xfe19) // Vertical forms // || (point >= 0xfe30 && point <= 0xfe6f) // CJK Compatibility Forms // || (point >= 0xff00 && point <= 0xff60) // Fullwidth Forms // || (point >= 0xffe0 && point <= 0xffe6) // || (point >= 0x20000 && point <= 0x2fffd) // || (point >= 0x30000 && point <= 0x3fffd))) { // return 2; // } // check for double-wide if ((0x3000 === point) || (0xFF01 <= point && point <= 0xFF60) || (0xFFE0 <= point && point <= 0xFFE6)) { return 2; } if ((0x1100 <= point && point <= 0x115F) || (0x11A3 <= point && point <= 0x11A7) || (0x11FA <= point && point <= 0x11FF) || (0x2329 <= point && point <= 0x232A) || (0x2E80 <= point && point <= 0x2E99) || (0x2E9B <= point && point <= 0x2EF3) || (0x2F00 <= point && point <= 0x2FD5) || (0x2FF0 <= point && point <= 0x2FFB) || (0x3001 <= point && point <= 0x303E) || (0x3041 <= point && point <= 0x3096) || (0x3099 <= point && point <= 0x30FF) || (0x3105 <= point && point <= 0x312D) || (0x3131 <= point && point <= 0x318E) || (0x3190 <= point && point <= 0x31BA) || (0x31C0 <= point && point <= 0x31E3) || (0x31F0 <= point && point <= 0x321E) || (0x3220 <= point && point <= 0x3247) || (0x3250 <= point && point <= 0x32FE) || (0x3300 <= point && point <= 0x4DBF) || (0x4E00 <= point && point <= 0xA48C) || (0xA490 <= point && point <= 0xA4C6) || (0xA960 <= point && point <= 0xA97C) || (0xAC00 <= point && point <= 0xD7A3) || (0xD7B0 <= point && point <= 0xD7C6) || (0xD7CB <= point && point <= 0xD7FB) || (0xF900 <= point && point <= 0xFAFF) || (0xFE10 <= point && point <= 0xFE19) || (0xFE30 <= point && point <= 0xFE52) || (0xFE54 <= point && point <= 0xFE66) || (0xFE68 <= point && point <= 0xFE6B) || (0x1B000 <= point && point <= 0x1B001) || (0x1F200 <= point && point <= 0x1F202) || (0x1F210 <= point && point <= 0x1F23A) || (0x1F240 <= point && point <= 0x1F248) || (0x1F250 <= point && point <= 0x1F251) || (0x20000 <= point && point <= 0x2F73F) || (0x2B740 <= point && point <= 0x2FFFD) || (0x30000 <= point && point <= 0x3FFFD)) { return 2; } // CJK Ambiguous // http://www.unicode.org/reports/tr11/ // http://www.unicode.org/reports/tr11/#Ambiguous if (process.env.NCURSES_CJK_WIDTH) { if ((0x00A1 === point) || (0x00A4 === point) || (0x00A7 <= point && point <= 0x00A8) || (0x00AA === point) || (0x00AD <= point && point <= 0x00AE) || (0x00B0 <= point && point <= 0x00B4) || (0x00B6 <= point && point <= 0x00BA) || (0x00BC <= point && point <= 0x00BF) || (0x00C6 === point) || (0x00D0 === point) || (0x00D7 <= point && point <= 0x00D8) || (0x00DE <= point && point <= 0x00E1) || (0x00E6 === point) || (0x00E8 <= point && point <= 0x00EA) || (0x00EC <= point && point <= 0x00ED) || (0x00F0 === point) || (0x00F2 <= point && point <= 0x00F3) || (0x00F7 <= point && point <= 0x00FA) || (0x00FC === point) || (0x00FE === point) || (0x0101 === point) || (0x0111 === point) || (0x0113 === point) || (0x011B === point) || (0x0126 <= point && point <= 0x0127) || (0x012B === point) || (0x0131 <= point && point <= 0x0133) || (0x0138 === point) || (0x013F <= point && point <= 0x0142) || (0x0144 === point) || (0x0148 <= point && point <= 0x014B) || (0x014D === point) || (0x0152 <= point && point <= 0x0153) || (0x0166 <= point && point <= 0x0167) || (0x016B === point) || (0x01CE === point) || (0x01D0 === point) || (0x01D2 === point) || (0x01D4 === point) || (0x01D6 === point) || (0x01D8 === point) || (0x01DA === point) || (0x01DC === point) || (0x0251 === point) || (0x0261 === point) || (0x02C4 === point) || (0x02C7 === point) || (0x02C9 <= point && point <= 0x02CB) || (0x02CD === point) || (0x02D0 === point) || (0x02D8 <= point && point <= 0x02DB) || (0x02DD === point) || (0x02DF === point) || (0x0300 <= point && point <= 0x036F) || (0x0391 <= point && point <= 0x03A1) || (0x03A3 <= point && point <= 0x03A9) || (0x03B1 <= point && point <= 0x03C1) || (0x03C3 <= point && point <= 0x03C9) || (0x0401 === point) || (0x0410 <= point && point <= 0x044F) || (0x0451 === point) || (0x2010 === point) || (0x2013 <= point && point <= 0x2016) || (0x2018 <= point && point <= 0x2019) || (0x201C <= point && point <= 0x201D) || (0x2020 <= point && point <= 0x2022) || (0x2024 <= point && point <= 0x2027) || (0x2030 === point) || (0x2032 <= point && point <= 0x2033) || (0x2035 === point) || (0x203B === point) || (0x203E === point) || (0x2074 === point) || (0x207F === point) || (0x2081 <= point && point <= 0x2084) || (0x20AC === point) || (0x2103 === point) || (0x2105 === point) || (0x2109 === point) || (0x2113 === point) || (0x2116 === point) || (0x2121 <= point && point <= 0x2122) || (0x2126 === point) || (0x212B === point) || (0x2153 <= point && point <= 0x2154) || (0x215B <= point && point <= 0x215E) || (0x2160 <= point && point <= 0x216B) || (0x2170 <= point && point <= 0x2179) || (0x2189 === point) || (0x2190 <= point && point <= 0x2199) || (0x21B8 <= point && point <= 0x21B9) || (0x21D2 === point) || (0x21D4 === point) || (0x21E7 === point) || (0x2200 === point) || (0x2202 <= point && point <= 0x2203) || (0x2207 <= point && point <= 0x2208) || (0x220B === point) || (0x220F === point) || (0x2211 === point) || (0x2215 === point) || (0x221A === point) || (0x221D <= point && point <= 0x2220) || (0x2223 === point) || (0x2225 === point) || (0x2227 <= point && point <= 0x222C) || (0x222E === point) || (0x2234 <= point && point <= 0x2237) || (0x223C <= point && point <= 0x223D) || (0x2248 === point) || (0x224C === point) || (0x2252 === point) || (0x2260 <= point && point <= 0x2261) || (0x2264 <= point && point <= 0x2267) || (0x226A <= point && point <= 0x226B) || (0x226E <= point && point <= 0x226F) || (0x2282 <= point && point <= 0x2283) || (0x2286 <= point && point <= 0x2287) || (0x2295 === point) || (0x2299 === point) || (0x22A5 === point) || (0x22BF === point) || (0x2312 === point) || (0x2460 <= point && point <= 0x24E9) || (0x24EB <= point && point <= 0x254B) || (0x2550 <= point && point <= 0x2573) || (0x2580 <= point && point <= 0x258F) || (0x2592 <= point && point <= 0x2595) || (0x25A0 <= point && point <= 0x25A1) || (0x25A3 <= point && point <= 0x25A9) || (0x25B2 <= point && point <= 0x25B3) || (0x25B6 <= point && point <= 0x25B7) || (0x25BC <= point && point <= 0x25BD) || (0x25C0 <= point && point <= 0x25C1) || (0x25C6 <= point && point <= 0x25C8) || (0x25CB === point) || (0x25CE <= point && point <= 0x25D1) || (0x25E2 <= point && point <= 0x25E5) || (0x25EF === point) || (0x2605 <= point && point <= 0x2606) || (0x2609 === point) || (0x260E <= point && point <= 0x260F) || (0x2614 <= point && point <= 0x2615) || (0x261C === point) || (0x261E === point) || (0x2640 === point) || (0x2642 === point) || (0x2660 <= point && point <= 0x2661) || (0x2663 <= point && point <= 0x2665) || (0x2667 <= point && point <= 0x266A) || (0x266C <= point && point <= 0x266D) || (0x266F === point) || (0x269E <= point && point <= 0x269F) || (0x26BE <= point && point <= 0x26BF) || (0x26C4 <= point && point <= 0x26CD) || (0x26CF <= point && point <= 0x26E1) || (0x26E3 === point) || (0x26E8 <= point && point <= 0x26FF) || (0x273D === point) || (0x2757 === point) || (0x2776 <= point && point <= 0x277F) || (0x2B55 <= point && point <= 0x2B59) || (0x3248 <= point && point <= 0x324F) || (0xE000 <= point && point <= 0xF8FF) || (0xFE00 <= point && point <= 0xFE0F) || (0xFFFD === point) || (0x1F100 <= point && point <= 0x1F10A) || (0x1F110 <= point && point <= 0x1F12D) || (0x1F130 <= point && point <= 0x1F169) || (0x1F170 <= point && point <= 0x1F19A) || (0xE0100 <= point && point <= 0xE01EF) || (0xF0000 <= point && point <= 0xFFFFD) || (0x100000 <= point && point <= 0x10FFFD)) { return +process.env.NCURSES_CJK_WIDTH || 1; } } return 1; }; exports.strWidth = function(str) { var width = 0; for (var i = 0; i < str.length; i++) { width += exports.charWidth(str, i); if (exports.isSurrogate(str, i)) i++; } return width; }; exports.isSurrogate = function(str, i) { var point = typeof str !== 'number' ? exports.codePointAt(str, i || 0) : str; return point > 0x00ffff; }; exports.combiningTable = [ [0x0300, 0x036F], [0x0483, 0x0486], [0x0488, 0x0489], [0x0591, 0x05BD], [0x05BF, 0x05BF], [0x05C1, 0x05C2], [0x05C4, 0x05C5], [0x05C7, 0x05C7], [0x0600, 0x0603], [0x0610, 0x0615], [0x064B, 0x065E], [0x0670, 0x0670], [0x06D6, 0x06E4], [0x06E7, 0x06E8], [0x06EA, 0x06ED], [0x070F, 0x070F], [0x0711, 0x0711], [0x0730, 0x074A], [0x07A6, 0x07B0], [0x07EB, 0x07F3], [0x0901, 0x0902], [0x093C, 0x093C], [0x0941, 0x0948], [0x094D, 0x094D], [0x0951, 0x0954], [0x0962, 0x0963], [0x0981, 0x0981], [0x09BC, 0x09BC], [0x09C1, 0x09C4], [0x09CD, 0x09CD], [0x09E2, 0x09E3], [0x0A01, 0x0A02], [0x0A3C, 0x0A3C], [0x0A41, 0x0A42], [0x0A47, 0x0A48], [0x0A4B, 0x0A4D], [0x0A70, 0x0A71], [0x0A81, 0x0A82], [0x0ABC, 0x0ABC], [0x0AC1, 0x0AC5], [0x0AC7, 0x0AC8], [0x0ACD, 0x0ACD], [0x0AE2, 0x0AE3], [0x0B01, 0x0B01], [0x0B3C, 0x0B3C], [0x0B3F, 0x0B3F], [0x0B41, 0x0B43], [0x0B4D, 0x0B4D], [0x0B56, 0x0B56], [0x0B82, 0x0B82], [0x0BC0, 0x0BC0], [0x0BCD, 0x0BCD], [0x0C3E, 0x0C40], [0x0C46, 0x0C48], [0x0C4A, 0x0C4D], [0x0C55, 0x0C56], [0x0CBC, 0x0CBC], [0x0CBF, 0x0CBF], [0x0CC6, 0x0CC6], [0x0CCC, 0x0CCD], [0x0CE2, 0x0CE3], [0x0D41, 0x0D43], [0x0D4D, 0x0D4D], [0x0DCA, 0x0DCA], [0x0DD2, 0x0DD4], [0x0DD6, 0x0DD6], [0x0E31, 0x0E31], [0x0E34, 0x0E3A], [0x0E47, 0x0E4E], [0x0EB1, 0x0EB1], [0x0EB4, 0x0EB9], [0x0EBB, 0x0EBC], [0x0EC8, 0x0ECD], [0x0F18, 0x0F19], [0x0F35, 0x0F35], [0x0F37, 0x0F37], [0x0F39, 0x0F39], [0x0F71, 0x0F7E], [0x0F80, 0x0F84], [0x0F86, 0x0F87], [0x0F90, 0x0F97], [0x0F99, 0x0FBC], [0x0FC6, 0x0FC6], [0x102D, 0x1030], [0x1032, 0x1032], [0x1036, 0x1037], [0x1039, 0x1039], [0x1058, 0x1059], [0x1160, 0x11FF], [0x135F, 0x135F], [0x1712, 0x1714], [0x1732, 0x1734], [0x1752, 0x1753], [0x1772, 0x1773], [0x17B4, 0x17B5], [0x17B7, 0x17BD], [0x17C6, 0x17C6], [0x17C9, 0x17D3], [0x17DD, 0x17DD], [0x180B, 0x180D], [0x18A9, 0x18A9], [0x1920, 0x1922], [0x1927, 0x1928], [0x1932, 0x1932], [0x1939, 0x193B], [0x1A17, 0x1A18], [0x1B00, 0x1B03], [0x1B34, 0x1B34], [0x1B36, 0x1B3A], [0x1B3C, 0x1B3C], [0x1B42, 0x1B42], [0x1B6B, 0x1B73], [0x1DC0, 0x1DCA], [0x1DFE, 0x1DFF], [0x200B, 0x200F], [0x202A, 0x202E], [0x2060, 0x2063], [0x206A, 0x206F], [0x20D0, 0x20EF], [0x302A, 0x302F], [0x3099, 0x309A], [0xA806, 0xA806], [0xA80B, 0xA80B], [0xA825, 0xA826], [0xFB1E, 0xFB1E], [0xFE00, 0xFE0F], [0xFE20, 0xFE23], [0xFEFF, 0xFEFF], [0xFFF9, 0xFFFB], [0x10A01, 0x10A03], [0x10A05, 0x10A06], [0x10A0C, 0x10A0F], [0x10A38, 0x10A3A], [0x10A3F, 0x10A3F], [0x1D167, 0x1D169], [0x1D173, 0x1D182], [0x1D185, 0x1D18B], [0x1D1AA, 0x1D1AD], [0x1D242, 0x1D244], [0xE0001, 0xE0001], [0xE0020, 0xE007F], [0xE0100, 0xE01EF] ]; exports.combining = exports.combiningTable.reduce(function(out, row) { for (var i = row[0]; i <= row[1]; i++) { out[i] = true; } return out; }, {}); exports.isCombining = function(str, i) { var point = typeof str !== 'number' ? exports.codePointAt(str, i || 0) : str; return exports.combining[point] === true; }; /** * Code Point Helpers */ exports.codePointAt = function(str, position) { if (str == null) { throw TypeError(); } var string = String(str); if (string.codePointAt) { return string.codePointAt(position); } var size = string.length; // `ToInteger` var index = position ? Number(position) : 0; if (index !== index) { // better `isNaN` index = 0; } // Account for out-of-bounds indices: if (index < 0 || index >= size) { return undefined; } // Get the first code unit var first = string.charCodeAt(index); var second; if ( // check if it’s the start of a surrogate pair first >= 0xD800 && first <= 0xDBFF && // high surrogate size > index + 1 // there is a next code unit ) { second = string.charCodeAt(index + 1); if (second >= 0xDC00 && second <= 0xDFFF) { // low surrogate // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae return (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000; } } return first; }; // exports.codePointAt = function(str, position) { // position = +position || 0; // var x = str.charCodeAt(position); // var y = str.length > 1 ? str.charCodeAt(position + 1) : 0; // var point = x; // if ((0xD800 <= x && x <= 0xDBFF) && (0xDC00 <= y && y <= 0xDFFF)) { // x &= 0x3FF; // y &= 0x3FF; // point = (x << 10) | y; // point += 0x10000; // } // return point; // }; exports.fromCodePoint = function() { if (String.fromCodePoint) { return String.fromCodePoint.apply(String, arguments); } var MAX_SIZE = 0x4000; var codeUnits = []; var highSurrogate; var lowSurrogate; var index = -1; var length = arguments.length; if (!length) { return ''; } var result = ''; while (++index < length) { var codePoint = Number(arguments[index]); if ( !isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity` codePoint < 0 || // not a valid Unicode code point codePoint > 0x10FFFF || // not a valid Unicode code point floor(codePoint) !== codePoint // not an integer ) { throw RangeError('Invalid code point: ' + codePoint); } if (codePoint <= 0xFFFF) { // BMP code point codeUnits.push(codePoint); } else { // Astral code point; split in surrogate halves // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae codePoint -= 0x10000; highSurrogate = (codePoint >> 10) + 0xD800; lowSurrogate = (codePoint % 0x400) + 0xDC00; codeUnits.push(highSurrogate, lowSurrogate); } if (index + 1 === length || codeUnits.length > MAX_SIZE) { result += stringFromCharCode.apply(null, codeUnits); codeUnits.length = 0; } } return result; }; /** * Regexes */ exports.chars = {}; // Double width characters that are _not_ surrogate pairs. // NOTE: 0x20000 - 0x2fffd and 0x30000 - 0x3fffd are not necessary for this // regex anyway. This regex is used to put a blank char after wide chars to // be eaten, however, if this is a surrogate pair, parseContent already adds // the extra one char because its length equals 2 instead of 1. exports.chars.wide = new RegExp('([' + '\\u1100-\\u115f' // Hangul Jamo init. consonants + '\\u2329\\u232a' + '\\u2e80-\\u303e\\u3040-\\ua4cf' // CJK ... Yi + '\\uac00-\\ud7a3' // Hangul Syllables + '\\uf900-\\ufaff' // CJK Compatibility Ideographs + '\\ufe10-\\ufe19' // Vertical forms + '\\ufe30-\\ufe6f' // CJK Compatibility Forms + '\\uff00-\\uff60' // Fullwidth Forms + '\\uffe0-\\uffe6' + '])', 'g'); // All surrogate pair wide chars. exports.chars.swide = new RegExp('(' // 0x20000 - 0x2fffd: + '[\\ud840-\\ud87f][\\udc00-\\udffd]' + '|' // 0x30000 - 0x3fffd: + '[\\ud880-\\ud8bf][\\udc00-\\udffd]' + ')', 'g'); // All wide chars including surrogate pairs. exports.chars.all = new RegExp('(' + exports.chars.swide.source.slice(1, -1) + '|' + exports.chars.wide.source.slice(1, -1) + ')', 'g'); // Regex to detect a surrogate pair. exports.chars.surrogate = /[\ud800-\udbff][\udc00-\udfff]/g; // Regex to find combining characters. exports.chars.combining = exports.combiningTable.reduce(function(out, row) { var low, high, range; if (row[0] > 0x00ffff) { low = exports.fromCodePoint(row[0]); low = [ hexify(low.charCodeAt(0)), hexify(low.charCodeAt(1)) ]; high = exports.fromCodePoint(row[1]); high = [ hexify(high.charCodeAt(0)), hexify(high.charCodeAt(1)) ]; range = '[\\u' + low[0] + '-' + '\\u' + high[0] + ']' + '[\\u' + low[1] + '-' + '\\u' + high[1] + ']'; if (!~out.indexOf('|')) out += ']'; out += '|' + range; } else { low = hexify(row[0]); high = hexify(row[1]); low = '\\u' + low; high = '\\u' + high; out += low + '-' + high; } return out; }, '['); exports.chars.combining = new RegExp(exports.chars.combining, 'g'); function hexify(n) { n = n.toString(16); while (n.length < 4) n = '0' + n; return n; } /* exports.chars.combining = new RegExp( '[' + '\\u0300-\\u036f' + '\\u0483-\\u0486' + '\\u0488-\\u0489' + '\\u0591-\\u05bd' + '\\u05bf-\\u05bf' + '\\u05c1-\\u05c2' + '\\u05c4-\\u05c5' + '\\u05c7-\\u05c7' + '\\u0600-\\u0603' + '\\u0610-\\u0615' + '\\u064b-\\u065e' + '\\u0670-\\u0670' + '\\u06d6-\\u06e4' + '\\u06e7-\\u06e8' + '\\u06ea-\\u06ed' + '\\u070f-\\u070f' + '\\u0711-\\u0711' + '\\u0730-\\u074a' + '\\u07a6-\\u07b0' + '\\u07eb-\\u07f3' + '\\u0901-\\u0902' + '\\u093c-\\u093c' + '\\u0941-\\u0948' + '\\u094d-\\u094d' + '\\u0951-\\u0954' + '\\u0962-\\u0963' + '\\u0981-\\u0981' + '\\u09bc-\\u09bc' + '\\u09c1-\\u09c4' + '\\u09cd-\\u09cd' + '\\u09e2-\\u09e3' + '\\u0a01-\\u0a02' + '\\u0a3c-\\u0a3c' + '\\u0a41-\\u0a42' + '\\u0a47-\\u0a48' + '\\u0a4b-\\u0a4d' + '\\u0a70-\\u0a71' + '\\u0a81-\\u0a82' + '\\u0abc-\\u0abc' + '\\u0ac1-\\u0ac5' + '\\u0ac7-\\u0ac8' + '\\u0acd-\\u0acd' + '\\u0ae2-\\u0ae3' + '\\u0b01-\\u0b01' + '\\u0b3c-\\u0b3c' + '\\u0b3f-\\u0b3f' + '\\u0b41-\\u0b43' + '\\u0b4d-\\u0b4d' + '\\u0b56-\\u0b56' + '\\u0b82-\\u0b82' + '\\u0bc0-\\u0bc0' + '\\u0bcd-\\u0bcd' + '\\u0c3e-\\u0c40' + '\\u0c46-\\u0c48' + '\\u0c4a-\\u0c4d' + '\\u0c55-\\u0c56' + '\\u0cbc-\\u0cbc' + '\\u0cbf-\\u0cbf' + '\\u0cc6-\\u0cc6' + '\\u0ccc-\\u0ccd' + '\\u0ce2-\\u0ce3' + '\\u0d41-\\u0d43' + '\\u0d4d-\\u0d4d' + '\\u0dca-\\u0dca' + '\\u0dd2-\\u0dd4' + '\\u0dd6-\\u0dd6' + '\\u0e31-\\u0e31' + '\\u0e34-\\u0e3a' + '\\u0e47-\\u0e4e' + '\\u0eb1-\\u0eb1' + '\\u0eb4-\\u0eb9' + '\\u0ebb-\\u0ebc' + '\\u0ec8-\\u0ecd' + '\\u0f18-\\u0f19' + '\\u0f35-\\u0f35' + '\\u0f37-\\u0f37' + '\\u0f39-\\u0f39' + '\\u0f71-\\u0f7e' + '\\u0f80-\\u0f84' + '\\u0f86-\\u0f87' + '\\u0f90-\\u0f97' + '\\u0f99-\\u0fbc' + '\\u0fc6-\\u0fc6' + '\\u102d-\\u1030' + '\\u1032-\\u1032' + '\\u1036-\\u1037' + '\\u1039-\\u1039' + '\\u1058-\\u1059' + '\\u1160-\\u11ff' + '\\u135f-\\u135f' + '\\u1712-\\u1714' + '\\u1732-\\u1734' + '\\u1752-\\u1753' + '\\u1772-\\u1773' + '\\u17b4-\\u17b5' + '\\u17b7-\\u17bd' + '\\u17c6-\\u17c6' + '\\u17c9-\\u17d3' + '\\u17dd-\\u17dd' + '\\u180b-\\u180d' + '\\u18a9-\\u18a9' + '\\u1920-\\u1922' + '\\u1927-\\u1928' + '\\u1932-\\u1932' + '\\u1939-\\u193b' + '\\u1a17-\\u1a18' + '\\u1b00-\\u1b03' + '\\u1b34-\\u1b34' + '\\u1b36-\\u1b3a' + '\\u1b3c-\\u1b3c' + '\\u1b42-\\u1b42' + '\\u1b6b-\\u1b73' + '\\u1dc0-\\u1dca' + '\\u1dfe-\\u1dff' + '\\u200b-\\u200f' + '\\u202a-\\u202e' + '\\u2060-\\u2063' + '\\u206a-\\u206f' + '\\u20d0-\\u20ef' + '\\u302a-\\u302f' + '\\u3099-\\u309a' + '\\ua806-\\ua806' + '\\ua80b-\\ua80b' + '\\ua825-\\ua826' + '\\ufb1e-\\ufb1e' + '\\ufe00-\\ufe0f' + '\\ufe20-\\ufe23' + '\\ufeff-\\ufeff' + '\\ufff9-\\ufffb' + ']' + '|[\\ud802-\\ud802][\\ude01-\\ude03]' + '|[\\ud802-\\ud802][\\ude05-\\ude06]' + '|[\\ud802-\\ud802][\\ude0c-\\ude0f]' + '|[\\ud802-\\ud802][\\ude38-\\ude3a]' + '|[\\ud802-\\ud802][\\ude3f-\\ude3f]' + '|[\\ud834-\\ud834][\\udd67-\\udd69]' + '|[\\ud834-\\ud834][\\udd73-\\udd82]' + '|[\\ud834-\\ud834][\\udd85-\\udd8b]' + '|[\\ud834-\\ud834][\\uddaa-\\uddad]' + '|[\\ud834-\\ud834][\\ude42-\\ude44]' + '|[\\udb40-\\udb40][\\udc01-\\udc01]' + '|[\\udb40-\\udb40][\\udc20-\\udc7f]' + '|[\\udb40-\\udb40][\\udd00-\\uddef]' , 'g'); */
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