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-/**
- * 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; \ No newline at end of file