1 files changed, 137 insertions, 0 deletions
diff --git a/node_modules/fbjs/lib/UnicodeHangulKorean.js b/node_modules/fbjs/lib/UnicodeHangulKorean.js
new file mode 100644
index 000000000..67252699d
--- /dev/null
+++ b/node_modules/fbjs/lib/UnicodeHangulKorean.js
@@ -0,0 +1,137 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @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