1 /* 2 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.nio.cs.ext; 27 28 import java.nio.charset.Charset; 29 import java.nio.charset.CharsetDecoder; 30 import java.nio.charset.CharsetEncoder; 31 import sun.nio.cs.HistoricallyNamedCharset; 32 import java.util.Arrays; 33 import static sun.nio.cs.CharsetMapping.*; 34 35 public class Big5_Solaris extends Charset implements HistoricallyNamedCharset 36 { 37 public Big5_Solaris() { 38 super("x-Big5-Solaris", ExtendedCharsets.aliasesFor("x-Big5-Solaris")); 39 } 40 41 public String historicalName() { 42 return "Big5_Solaris"; 43 } 44 45 public boolean contains(Charset cs) { 46 return ((cs.name().equals("US-ASCII")) 47 || (cs instanceof Big5) 48 || (cs instanceof Big5_Solaris)); 49 } 50 51 public CharsetDecoder newDecoder() { 52 initb2c(); 53 return new DoubleByte.Decoder(this, b2c, b2cSB, 0x40, 0xfe); 54 } 55 56 public CharsetEncoder newEncoder() { 57 initc2b(); 58 return new DoubleByte.Encoder(this, c2b, c2bIndex); 59 } 60 61 static char[][] b2c; 62 static char[] b2cSB; 63 private static volatile boolean b2cInitialized = false; 64 65 static void initb2c() { 66 if (b2cInitialized) 67 return; 68 synchronized (Big5_Solaris.class) { 69 if (b2cInitialized) 70 return; 71 Big5.initb2c(); 72 b2c = Big5.b2c.clone(); 73 // Big5 Solaris implementation has 7 additional mappings 74 int[] sol = new int[] { 75 0xF9D6, 0x7881, 76 0xF9D7, 0x92B9, 77 0xF9D8, 0x88CF, 78 0xF9D9, 0x58BB, 79 0xF9DA, 0x6052, 80 0xF9DB, 0x7CA7, 81 0xF9DC, 0x5AFA }; 82 if (b2c[0xf9] == DoubleByte.B2C_UNMAPPABLE) { 83 b2c[0xf9] = new char[0xfe - 0x40 + 1]; 84 Arrays.fill(b2c[0xf9], UNMAPPABLE_DECODING); 85 } 86 87 for (int i = 0; i < sol.length;) { 88 b2c[0xf9][sol[i++] & 0xff - 0x40] = (char)sol[i++]; 89 } 90 b2cSB = Big5.b2cSB; 91 b2cInitialized = true; 92 } 93 } 94 95 static char[] c2b; 96 static char[] c2bIndex; 97 private static volatile boolean c2bInitialized = false; 98 99 static void initc2b() { 100 if (c2bInitialized) 101 return; 102 synchronized (Big5_Solaris.class) { 103 if (c2bInitialized) 104 return; 105 Big5.initc2b(); 106 c2b = Big5.c2b.clone(); 107 c2bIndex = Big5.c2bIndex.clone(); 108 int[] sol = new int[] { 109 0x7881, 0xF9D6, 110 0x92B9, 0xF9D7, 111 0x88CF, 0xF9D8, 112 0x58BB, 0xF9D9, 113 0x6052, 0xF9DA, 114 0x7CA7, 0xF9DB, 115 0x5AFA, 0xF9DC }; 116 117 for (int i = 0; i < sol.length;) { 118 int c = sol[i++]; 119 // no need to check c2bIndex[c >>8], we know it points 120 // to the appropriate place. 121 c2b[c2bIndex[c >> 8] + (c & 0xff)] = (char)sol[i++]; 122 } 123 c2bInitialized = true; 124 } 125 } 126 }