1 // 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html#License 3 /* 4 ******************************************************************************* 5 * Copyright (C) 1998-2010, International Business Machines Corporation and * 6 * others. All Rights Reserved. * 7 ******************************************************************************* 8 * 9 * Created on Dec 09, 2003 10 * 11 ******************************************************************************* 12 */ 13 package com.ibm.icu.dev.tool.layout; 14 15 import java.io.PrintStream; 16 17 import com.ibm.icu.impl.Utility; 18 19 public class ThaiCharacterClasses 20 { 21 public static final int NON = 0; 22 public static final int CON = 1; 23 public static final int COA = 2; 24 public static final int COD = 3; 25 public static final int LVO = 4; 26 public static final int FV1 = 5; 27 public static final int FV2 = 6; 28 public static final int FV3 = 7; 29 public static final int BV1 = 8; 30 public static final int BV2 = 9; 31 public static final int BDI = 10; 32 public static final int TON = 11; 33 public static final int AD1 = 12; 34 public static final int AD2 = 13; 35 public static final int AD3 = 14; 36 public static final int NIK = 15; 37 public static final int AV1 = 16; 38 public static final int AV2 = 17; 39 public static final int AV3 = 18; 40 public static final int cCount = 19; 41 42 // Indexed by unicode - '\u0E00' 43 // FIXME: MS Fonts - Should 0E2E has no ascender (it does in WT font) 44 // FIXME: MS Fonts - 0E47 (MAITAIKHU) and 0E4D (NIKHAHIT) only have vowel forms 45 // FIXME: MS Fonts - 0E4E (YAMAKKAN) only has one form 46 private static final int classTable[] = { 47 // 0 1 2 3 4 5 6 7 8 9 A B C D E F 48 // ------------------------------------------------------------------------------- 49 /*0E00*/ NON, CON, CON, CON, CON, CON, CON, CON, CON, CON, CON, CON, CON, COD, COD, COD, 50 /*0E10*/ COD, CON, CON, CON, CON, CON, CON, CON, CON, CON, CON, COA, CON, COA, CON, COA, 51 /*0E20*/ CON, CON, CON, CON, FV3, CON, FV3, CON, CON, CON, CON, CON, CON, CON, CON, NON, 52 /*0E30*/ FV1, AV2, FV1, FV1, AV1, AV3, AV2, AV3, BV1, BV2, BDI, NON, NON, NON, NON, NON, 53 /*0E40*/ LVO, LVO, LVO, LVO, LVO, FV2, NON, AD2, TON, TON, TON, TON, AD1, NIK, AD3, NON, 54 /*0E50*/ NON, NON, NON, NON, NON, NON, NON, NON, NON, NON, NON, NON 55 }; 56 57 private static String[] classNames = 58 { 59 "NON", 60 "CON", 61 "COA", 62 "COD", 63 "LVO", 64 "FV1", 65 "FV2", 66 "FV3", 67 "BV1", 68 "BV2", 69 "BDI", 70 "TON", 71 "AD1", 72 "AD2", 73 "AD3", 74 "NIK", 75 "AV1", 76 "AV2", 77 "AV3" 78 }; 79 80 private static final char pairTable[][] = { 81 //------------------------------------------------------------------------------------------------ 82 // N C C C L F F F B B B T A A A N A A A 83 // O O O O V V V V V V D O D D D I V V V 84 // N N A D O 1 2 3 1 2 I N 1 2 3 K 1 2 3 85 //------------------------------------------------------------------------------------------------ 86 /*NON*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 87 /*CON*/ {'A', 'A', 'A', 'A', 'A', 'A', 'S', 'A', 'C', 'C', 'C', 'E', 'E', 'E', 'C', 'E', 'C', 'C', 'C'}, 88 /*COA*/ {'A', 'A', 'A', 'A', 'A', 'A', 'S', 'A', 'C', 'C', 'C', 'F', 'F', 'F', 'D', 'F', 'D', 'D', 'D'}, 89 /*COD*/ {'A', 'A', 'A', 'A', 'A', 'A', 'S', 'A', 'H', 'H', 'H', 'E', 'E', 'E', 'C', 'E', 'C', 'C', 'C'}, 90 /*LVO*/ {'S', 'A', 'A', 'A', 'S', 'S', 'S', 'S', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 91 /*FV1*/ {'S', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 92 /*FV2*/ {'A', 'A', 'A', 'A', 'A', 'A', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 93 /*FV3*/ {'A', 'A', 'A', 'A', 'A', 'S', 'A', 'S', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 94 /*BV1*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'E', 'E', 'R', 'R', 'E', 'R', 'R', 'R'}, 95 /*BV2*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'E', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 96 /*BDI*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 97 /*TON*/ {'A', 'A', 'A', 'A', 'A', 'I', 'A', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 98 /*AD1*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 99 /*AD2*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 100 /*AD3*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 101 /*NIK*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'G', 'G', 'R', 'R', 'R', 'R', 'R', 'R'}, 102 /*AV1*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'G', 'G', 'R', 'R', 'G', 'R', 'R', 'R'}, 103 /*AV2*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'G', 'R', 'R', 'R', 'R', 'R', 'R', 'R'}, 104 /*AV3*/ {'A', 'A', 'A', 'A', 'A', 'S', 'S', 'A', 'R', 'R', 'R', 'G', 'R', 'G', 'R', 'R', 'R', 'R', 'R'} 105 }; 106 107 public static int getCharClass(char ch) 108 { 109 int charClass = NON; 110 111 if (ch >= '\u0E00' && ch <= '\u0E5B') { 112 charClass = classTable[ch - '\u0E00']; 113 } 114 115 return charClass; 116 } 117 118 public static String getClassName(int classID) 119 { 120 if (classID < 0 || classID >= cCount) { 121 return "***"; 122 } 123 124 return classNames[classID]; 125 } 126 127 public static char getPairAction(int prevClass, int currClass) 128 { 129 if (prevClass < 0 || prevClass >= cCount | 130 currClass < 0 || currClass >= cCount) { 131 return 'A'; 132 } 133 134 return pairTable[prevClass][currClass]; 135 } 136 137 private static String classTableHeader = 138 "const le_uint8 ThaiShaping::classTable[] = {\n" + 139 " // 0 1 2 3 4 5 6 7 8 9 A B C D E F\n" + 140 " // -------------------------------------------------------------------------------"; 141 142 public static void writeClassTable(PrintStream output) 143 { 144 System.out.print("Writing class table..."); 145 146 output.print(classTableHeader); 147 148 for (char ch = '\u0E00'; ch <= '\u0E5B'; ch += 1) { 149 int charClass = getCharClass(ch); 150 151 if ((ch & 0x000F) == 0) { 152 output.print("\n /*" + Utility.hex(ch, 4) + "*/ "); 153 } 154 155 output.print(getClassName(charClass)); 156 157 if (ch < '\u0E5B') { 158 output.print(", "); 159 } else { 160 output.print("\n};\n\n"); 161 } 162 } 163 164 System.out.println(" done."); 165 } 166 167 } 168
