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Diffstat (limited to 'node_modules/fbjs/lib/UnicodeHangulKorean.js')
-rw-r--r-- | node_modules/fbjs/lib/UnicodeHangulKorean.js | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/node_modules/fbjs/lib/UnicodeHangulKorean.js b/node_modules/fbjs/lib/UnicodeHangulKorean.js deleted file mode 100644 index f67bd3cee..000000000 --- a/node_modules/fbjs/lib/UnicodeHangulKorean.js +++ /dev/null @@ -1,135 +0,0 @@ -/** - * Copyright (c) 2013-present, Facebook, Inc. - * - * This source code is licensed under the MIT license found in the - * LICENSE file in the root directory of this source tree. - * - * @typechecks - */ - -/** - * Unicode algorithms for Hangul script, the Korean writing system - * - * Hangul script has three encoded models in Unicode: - * - * A) Conjoining Jamo (covers modern and historic elements) - * * U+1100..U+11FF ; Hangul Jamo - * * U+A960..U+A97F ; Hangul Jamo Extended-A - * * U+D7B0..U+D7FF ; Hangul Jamo Extended-B - * - * B) Conjoined Syllables (only covers modern Korean language) - * * U+AC00..U+D7AF ; Hangul Syllables - * - * C) Compatibility Jamo (one code-point for each "shape") - * * U+3130..U+318F ; Hangul Compatibility Jamo - * - * This modules helps you convert characters from one model to another. - * Primary functionalities are: - * - * 1) Convert from any encodings to Conjoining Jamo characters (A), - * e.g. for prefix matching - * - * 2) Convert from any encodings to Syllable characters, when possible (B), - * e.g. to reach the normal Unicode form (NFC) - */ - -'use strict'; - -var HANGUL_COMPATIBILITY_OR_SYLLABLE_REGEX = /[\u3130-\u318F\uAC00-\uD7AF]/; - -/** - * Returns true if the input includes any Hangul Compatibility Jamo or - * Hangul Conjoined Syllable. - * - * @param {string} str - */ -function hasCompatibilityOrSyllable(str) { - return HANGUL_COMPATIBILITY_OR_SYLLABLE_REGEX.test(str); -} - -/* Compatibility Jamo -> Conjoining Jamo - * - * Maps a compatibility character to the Conjoining Jamo character, - * positioned at (compatibilityCodePoint - 0x3131). - * - * Generated by: - * $ grep '^31[3-8].;' UnicodeData.txt |\ - * awk -F';' '{print $6}' | awk '{print " 0x"$2","}' - */ -var CMAP = [0x1100, 0x1101, 0x11AA, 0x1102, 0x11AC, 0x11AD, 0x1103, 0x1104, 0x1105, 0x11B0, 0x11B1, 0x11B2, 0x11B3, 0x11B4, 0x11B5, 0x111A, 0x1106, 0x1107, 0x1108, 0x1121, 0x1109, 0x110A, 0x110B, 0x110C, 0x110D, 0x110E, 0x110F, 0x1110, 0x1111, 0x1112, 0x1161, 0x1162, 0x1163, 0x1164, 0x1165, 0x1166, 0x1167, 0x1168, 0x1169, 0x116A, 0x116B, 0x116C, 0x116D, 0x116E, 0x116F, 0x1170, 0x1171, 0x1172, 0x1173, 0x1174, 0x1175, 0x1160, 0x1114, 0x1115, 0x11C7, 0x11C8, 0x11CC, 0x11CE, 0x11D3, 0x11D7, 0x11D9, 0x111C, 0x11DD, 0x11DF, 0x111D, 0x111E, 0x1120, 0x1122, 0x1123, 0x1127, 0x1129, 0x112B, 0x112C, 0x112D, 0x112E, 0x112F, 0x1132, 0x1136, 0x1140, 0x1147, 0x114C, 0x11F1, 0x11F2, 0x1157, 0x1158, 0x1159, 0x1184, 0x1185, 0x1188, 0x1191, 0x1192, 0x1194, 0x119E, 0x11A1]; - -var CBASE = 0x3131; -var CCOUNT = CMAP.length; -var CTOP = CBASE + CCOUNT; - -/** - * Maps one Hangul Compatibility Jamo code-point to the equivalent Hangul - * Conjoining Jamo characters, as defined in UnicodeData.txt. - * - * @param {number} codePoint One Unicode code-point - * @output {string} - */ -function fromCompatibility(codePoint) { - return String.fromCharCode(CMAP[codePoint - CBASE]); -} - -/** - * Conjoined Syllable -> Conjoining Jamo - * - * Based on the "Hangul Syllable Decomposition" algorithm provided in - * 3.12 Conjoining Jamo Behavior, The Unicode Standard, Version 6.3.0. - * <http://www.unicode.org/versions/Unicode6.2.0/ch03.pdf> - */ - -var LBASE = 0x1100; -var VBASE = 0x1161; -var TBASE = 0x11A7; -var SBASE = 0xAC00; -var LCOUNT = 19; -var VCOUNT = 21; -var TCOUNT = 28; -var NCOUNT = VCOUNT * TCOUNT; -var SCOUNT = LCOUNT * NCOUNT; -var STOP = SBASE + SCOUNT; - -/** - * Maps one Hangul Syllable code-point to the equivalent Hangul - * Conjoining Jamo characters, as defined in UnicodeData.txt. - * - * @param {number} codePoint One Unicode character - * @output {string} - */ -function decomposeSyllable(codePoint) { - var sylSIndex = codePoint - SBASE; - var sylTIndex = sylSIndex % TCOUNT; - return String.fromCharCode(LBASE + sylSIndex / NCOUNT) + String.fromCharCode(VBASE + sylSIndex % NCOUNT / TCOUNT) + (sylTIndex > 0 ? String.fromCharCode(TBASE + sylTIndex) : ''); -} - -/* To Conjoining Jamo */ - -/** - * Return Unicode characters as they are, except for Hangul characters, which - * will be converted to the Conjoining Jamo form. - * - * @param {string} string - * @output {string} - */ -function toConjoiningJamo(string) { - if (!hasCompatibilityOrSyllable(string)) { - return string; - } - - var result = []; - for (var i = 0; i < string.length; i++) { - var charStr = string.charAt(i); - var codeUnit = charStr.charCodeAt(0); - result.push(CBASE <= codeUnit && codeUnit < CTOP ? fromCompatibility(codeUnit) : SBASE <= codeUnit && codeUnit < STOP ? decomposeSyllable(codeUnit) : charStr); - } - return result.join(''); -} - -var UnicodeHangulKorean = { - toConjoiningJamo: toConjoiningJamo -}; - -module.exports = UnicodeHangulKorean;
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