< prev index next >

src/jdk.charsets/share/classes/sun/nio/cs/ext/IBM29626C.java.template

Print this page


   1 /*
   2  * Copyright (c) 2002, 2012, 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 $PACKAGE$;
  27 
  28 import java.nio.ByteBuffer;
  29 import java.nio.CharBuffer;
  30 import java.nio.charset.Charset;
  31 import java.nio.charset.CharsetDecoder;
  32 import java.nio.charset.CharsetEncoder;
  33 import java.nio.charset.CoderResult;
  34 import sun.nio.cs.HistoricallyNamedCharset;
  35 import sun.nio.cs.DelegatableDecoder;
  36 import sun.nio.cs.DoubleByte;
  37 import sun.nio.cs.Surrogate;
  38 import sun.nio.cs.SingleByte;
  39 import sun.nio.cs.*;
  40 import static sun.nio.cs.CharsetMapping.*;
  41 
  42 public class EUC_JP
  43     extends Charset
  44     implements HistoricallyNamedCharset
  45 {
  46     public EUC_JP() {
  47         super("EUC-JP",  $ALIASES$);
  48     }
  49 
  50     public String historicalName() {
  51         return "EUC_JP";
  52     }
  53 
  54     public boolean contains(Charset cs) {
  55         return ((cs.name().equals("US-ASCII"))
  56                 || (cs instanceof JIS_X_0201)
  57                 || (cs instanceof JIS_X_0208)
  58                 || (cs instanceof JIS_X_0212)
  59                 || (cs instanceof EUC_JP));
  60     }
  61 
  62     public CharsetDecoder newDecoder() {
  63         return new Decoder(this);
  64     }
  65 
  66     public CharsetEncoder newEncoder() {
  67         return new Encoder(this);
  68     }
  69 
  70     static class Decoder extends CharsetDecoder
  71         implements DelegatableDecoder {
  72 
  73         final static SingleByte.Decoder DEC0201 =
  74             (SingleByte.Decoder)new JIS_X_0201().newDecoder();
  75 
  76         final static DoubleByte.Decoder DEC0208 =
  77             (DoubleByte.Decoder)new JIS_X_0208().newDecoder();
  78 
  79         final static DoubleByte.Decoder DEC0212 =
  80             (DoubleByte.Decoder)new JIS_X_0212().newDecoder();
  81 



  82         private final SingleByte.Decoder dec0201;
  83         private final DoubleByte.Decoder dec0208;
  84         private final DoubleByte.Decoder dec0212;
  85 
















































  86         protected Decoder(Charset cs) {
  87             this(cs, 0.5f, 1.0f, DEC0201, DEC0208, DEC0212);
  88         }
  89 
  90         protected Decoder(Charset cs, float avgCpb, float maxCpb,
  91                           SingleByte.Decoder dec0201,
  92                           DoubleByte.Decoder dec0208,
  93                           DoubleByte.Decoder dec0212) {
  94             super(cs, avgCpb, maxCpb);
  95             this.dec0201 = dec0201;
  96             this.dec0208 = dec0208;
  97             this.dec0212 = dec0212;
  98         }
  99 
 100 




















 101         protected char decodeDouble(int byte1, int byte2) {
 102             if (byte1 == 0x8e) {
 103                 if (byte2 < 0x80)
 104                     return UNMAPPABLE_DECODING;
 105                 return dec0201.decode((byte)byte2);
 106             }
 107             return dec0208.decodeDouble(byte1 - 0x80, byte2 - 0x80);































 108         }
 109 
 110         private CoderResult decodeArrayLoop(ByteBuffer src,
 111                                             CharBuffer dst)
 112         {
 113             byte[] sa = src.array();
 114             int sp = src.arrayOffset() + src.position();
 115             int sl = src.arrayOffset() + src.limit();
 116             assert (sp <= sl);
 117             sp = (sp <= sl ? sp : sl);
 118 
 119             char[] da = dst.array();
 120             int dp = dst.arrayOffset() + dst.position();
 121             int dl = dst.arrayOffset() + dst.limit();
 122             assert (dp <= dl);
 123             dp = (dp <= dl ? dp : dl);
 124 
 125             int b1 = 0, b2 = 0;
 126             int inputSize = 0;
 127             char outputChar = UNMAPPABLE_DECODING;
 128             try {
 129                 while (sp < sl) {
 130                     b1 = sa[sp] & 0xff;
 131                     inputSize = 1;
 132 
 133                     if ((b1 & 0x80) == 0) {
 134                         outputChar = (char)b1;
 135                     } else {                        // Multibyte char
 136                         if (b1 == 0x8f) {           // JIS0212
 137                             if (sp + 3 > sl)
 138                                return CoderResult.UNDERFLOW;
 139                             b1 = sa[sp + 1] & 0xff;
 140                             b2 = sa[sp + 2] & 0xff;
 141                             inputSize += 2;
 142                             if (dec0212 == null)    // JIS02012 not supported
 143                                 return CoderResult.unmappableForLength(inputSize);
 144                             outputChar = dec0212.decodeDouble(b1-0x80, b2-0x80);
 145                         } else {                     // JIS0201, JIS0208
 146                             if (sp + 2 > sl)
 147                                return CoderResult.UNDERFLOW;
 148                             b2 = sa[sp + 1] & 0xff;
 149                             inputSize++;
 150                             outputChar = decodeDouble(b1, b2);
 151                         }
 152                     }
 153                     if (outputChar == UNMAPPABLE_DECODING) { // can't be decoded
 154                         return CoderResult.unmappableForLength(inputSize);
 155                     }
 156                     if (dp + 1 > dl)
 157                         return CoderResult.OVERFLOW;
 158                     da[dp++] = outputChar;
 159                     sp += inputSize;
 160                 }
 161                 return CoderResult.UNDERFLOW;
 162             } finally {
 163                 src.position(sp - src.arrayOffset());
 164                 dst.position(dp - dst.arrayOffset());
 165             }
 166         }
 167 
 168         private CoderResult decodeBufferLoop(ByteBuffer src,
 169                                              CharBuffer dst)
 170         {
 171             int mark = src.position();
 172             int b1 = 0, b2 = 0;
 173             int inputSize = 0;
 174             char outputChar = UNMAPPABLE_DECODING;
 175 
 176             try {
 177                 while (src.hasRemaining()) {
 178                     b1 = src.get() & 0xff;
 179                     inputSize = 1;
 180                     if ((b1 & 0x80) == 0) {
 181                         outputChar = (char)b1;
 182                     } else {                         // Multibyte char
 183                         if (b1 == 0x8f) {   // JIS0212
 184                             if (src.remaining() < 2)
 185                                return CoderResult.UNDERFLOW;
 186                             b1 = src.get() & 0xff;
 187                             b2 = src.get() & 0xff;
 188                             inputSize += 2;
 189                             if (dec0212 == null)    // JIS02012 not supported
 190                                 return CoderResult.unmappableForLength(inputSize);
 191                             outputChar = dec0212.decodeDouble(b1-0x80, b2-0x80);
 192                         } else {                     // JIS0201 JIS0208
 193                             if (src.remaining() < 1)
 194                                return CoderResult.UNDERFLOW;
 195                             b2 = src.get() & 0xff;
 196                             inputSize++;
 197                             outputChar = decodeDouble(b1, b2);
 198                         }
 199                     }
 200                     if (outputChar == UNMAPPABLE_DECODING) {
 201                         return CoderResult.unmappableForLength(inputSize);
 202                     }
 203                 if (dst.remaining() < 1)
 204                     return CoderResult.OVERFLOW;
 205                 dst.put(outputChar);
 206                 mark += inputSize;
 207                 }
 208                 return CoderResult.UNDERFLOW;
 209             } finally {
 210                 src.position(mark);
 211             }


 221         public void implReset() {
 222             super.implReset();
 223         }
 224         public CoderResult implFlush(CharBuffer out) {
 225             return super.implFlush(out);
 226         }
 227     }
 228 
 229 
 230     static class Encoder extends CharsetEncoder {
 231 
 232         final static SingleByte.Encoder ENC0201 =
 233             (SingleByte.Encoder)new JIS_X_0201().newEncoder();
 234 
 235         final static DoubleByte.Encoder ENC0208 =
 236             (DoubleByte.Encoder)new JIS_X_0208().newEncoder();
 237 
 238         final static DoubleByte.Encoder ENC0212 =
 239             (DoubleByte.Encoder)new JIS_X_0212().newEncoder();
 240 
 241         private final Surrogate.Parser sgp = new Surrogate.Parser();

 242 

 243 
 244         private final SingleByte.Encoder enc0201;
 245         private final DoubleByte.Encoder enc0208;
 246         private final DoubleByte.Encoder enc0212;
 247 




















































 248         protected Encoder(Charset cs) {
 249             this(cs, 3.0f, 3.0f, ENC0201, ENC0208, ENC0212);
 250         }
 251 
 252         protected Encoder(Charset cs, float avgBpc, float maxBpc,
 253                           SingleByte.Encoder enc0201,
 254                           DoubleByte.Encoder enc0208,
 255                           DoubleByte.Encoder enc0212) {
 256             super(cs, avgBpc, maxBpc);
 257             this.enc0201 = enc0201;
 258             this.enc0208 = enc0208;
 259             this.enc0212 = enc0212;
 260         }
 261 
 262         public boolean canEncode(char c) {
 263             byte[]  encodedBytes = new byte[3];
 264             return encodeSingle(c, encodedBytes) != 0 ||
 265                    encodeDouble(c) != UNMAPPABLE_ENCODING;
 266         }
 267 


 268         protected int encodeSingle(char inputChar, byte[] outputByte) {








 269             int b = enc0201.encode(inputChar);





 270             if (b == UNMAPPABLE_ENCODING)
 271                 return 0;
 272             if (b >= 0 && b < 128) {
 273                 outputByte[0] = (byte)b;
 274                 return 1;
 275             }
 276             outputByte[0] = (byte)0x8e;
 277             outputByte[1] = (byte)b;
 278             return 2;
 279         }
 280 















 281         protected int encodeDouble(char ch) {






 282             int b = enc0208.encodeChar(ch);
 283             if (b != UNMAPPABLE_ENCODING)
 284                 return b + 0x8080;
 285             if (enc0212 != null) {
 286                 b = enc0212.encodeChar(ch);
 287                 if (b != UNMAPPABLE_ENCODING)




 288                     b += 0x8F8080;


 289             }
 290             return b;
 291         }
 292 
 293         private CoderResult encodeArrayLoop(CharBuffer src,
 294                                             ByteBuffer dst)
 295         {
 296             char[] sa = src.array();
 297             int sp = src.arrayOffset() + src.position();
 298             int sl = src.arrayOffset() + src.limit();
 299             assert (sp <= sl);
 300             sp = (sp <= sl ? sp : sl);
 301             byte[] da = dst.array();
 302             int dp = dst.arrayOffset() + dst.position();
 303             int dl = dst.arrayOffset() + dst.limit();
 304             assert (dp <= dl);
 305             dp = (dp <= dl ? dp : dl);
 306 
 307             int outputSize = 0;
 308             byte[]  outputByte;


   1 /*
   2  * Copyright (c) 2002, 2018, 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 $PACKAGE$;
  27 
  28 import java.nio.ByteBuffer;
  29 import java.nio.CharBuffer;
  30 import java.nio.charset.Charset;
  31 import java.nio.charset.CharsetDecoder;
  32 import java.nio.charset.CharsetEncoder;
  33 import java.nio.charset.CoderResult;
  34 import sun.nio.cs.HistoricallyNamedCharset;
  35 import sun.nio.cs.DelegatableDecoder;
  36 import sun.nio.cs.DoubleByte;
  37 import sun.nio.cs.Surrogate;
  38 import sun.nio.cs.SingleByte;
  39 import sun.nio.cs.*;
  40 import static sun.nio.cs.CharsetMapping.*;
  41 
  42 public class IBM29626C
  43     extends Charset
  44     implements HistoricallyNamedCharset
  45 {
  46     public IBM29626C() {
  47         super("x-IBM29626C",  $ALIASES$);
  48     }
  49 
  50     public String historicalName() {
  51         return "Cp29626C";
  52     }
  53 
  54     public boolean contains(Charset cs) {
  55         return ((cs.name().equals("US-ASCII"))
  56                 || (cs instanceof IBM29626C));



  57     }
  58 
  59     public CharsetDecoder newDecoder() {
  60         return new Decoder(this);
  61     }
  62 
  63     public CharsetEncoder newEncoder() {
  64         return new Encoder(this);
  65     }
  66 
  67     static class Decoder extends CharsetDecoder
  68         implements DelegatableDecoder {
  69 
  70         final static SingleByte.Decoder DEC0201 =
  71             (SingleByte.Decoder)new JIS_X_0201().newDecoder();
  72 
  73         final static DoubleByte.Decoder DEC0208 =
  74             (DoubleByte.Decoder)new JIS_X_0208().newDecoder();
  75 
  76         final static DoubleByte.Decoder DEC0212 =
  77             (DoubleByte.Decoder)new JIS_X_0212().newDecoder();
  78 
  79         final static DoubleByte.Encoder ibm943 =
  80             (DoubleByte.Encoder)new IBM943().newEncoder();
  81 
  82         private final SingleByte.Decoder dec0201;
  83         private final DoubleByte.Decoder dec0208;
  84         private final DoubleByte.Decoder dec0212;
  85 
  86         private final String G2_b =
  87             "\uA1F1\uA1F2\uA2CC\uADA1\uADA2\uADA3\uADA4\uADA5\uADA6\uADA7"+
  88             "\uADA8\uADA9\uADAA\uADAB\uADAC\uADAD\uADAE\uADAF\uADB0\uADB1"+
  89             "\uADB2\uADB3\uADB4\uADB5\uADB6\uADB7\uADB8\uADB9\uADBA\uADBB"+
  90             "\uADBC\uADBD\uADBE\uADC0\uADC1\uADC2\uADC3\uADC4\uADC5\uADC6"+
  91             "\uADC7\uADC8\uADC9\uADCA\uADCB\uADCC\uADCD\uADCE\uADCF\uADD0"+
  92             "\uADD1\uADD2\uADD3\uADD4\uADD5\uADD6\uADDF\uADE0\uADE1\uADE2"+
  93             "\uADE3\uADE4\uADE5\uADE6\uADE7\uADE8\uADE9\uADEA\uADEB\uADEC"+
  94             "\uADED\uADEE\uADEF\uADF0\uADF1\uADF2\uADF3\uADF4\uADF5\uADF6"+
  95             "\uADF7\uADF8\uADF9\uADFA\uADFB\uADFC";
  96 
  97         private final String G2_c =
  98             "\uFFE0\uFFE1\uFFE2\u2460\u2461\u2462\u2463\u2464\u2465\u2466"+
  99             "\u2467\u2468\u2469\u246A\u246B\u246C\u246D\u246E\u246F\u2470"+
 100             "\u2471\u2472\u2473\u2160\u2161\u2162\u2163\u2164\u2165\u2166"+
 101             "\u2167\u2168\u2169\u3349\u3314\u3322\u334D\u3318\u3327\u3303"+
 102             "\u3336\u3351\u3357\u330D\u3326\u3323\u332B\u334A\u333B\u339C"+
 103             "\u339D\u339E\u338E\u338F\u33C4\u33A1\u337B\u301D\u301F\u2116"+
 104             "\u33CD\u2121\u32A4\u32A5\u32A6\u32A7\u32A8\u3231\u3232\u3239"+
 105             "\u337E\u337D\u337C\u2252\u2261\u222B\u222E\u2211\u221A\u22A5"+
 106             "\u2220\u221F\u22BF\u2235\u2229\u222A";
 107 
 108         private final String G3_b =
 109             "\uF3B8\uF3B9\uF3AB\uF3AC\uF3AD\uF3AE\uF3AF\uF3B0\uF3B1\uF3B2"+
 110             "\uF3B3\uF3B4\uF3A1\uF3A2\uF3A3\uF3A4\uF3A5\uF3A6\uF3A7\uF3A8"+
 111             "\uF3A9\uF3AA\uF3B7\uF3B8\uF4A2\uF4A3\uF4A4\uF4A5\uF4A6\uF4A8"+
 112             "\uF4A9\uF4AC\uF4AE\uF4AF\uF4B0\uF4B2\uF4B3\uF4B4\uF4B5\uF4B6"+
 113             "\uF4B7\uF4BA\uF4BD\uF4BE\uF4C0\uF4BF\uF4C2\uF4A1\uF4C6\uF4C7"+
 114             "\uF4C8\uF4CB\uF4D0\uF4D4\uF4D5\uF4D7\uF4D9\uF4DC\uF4DF\uF4E0"+
 115             "\uF4E1\uF4E5\uF4E7\uF4EA\uF4ED\uF4EE\uF4EF\uF4F4\uF4F5\uF4F6"+
 116             "\uF4F8\uF3B8\uF4B9\uF4EB\uF4A7\uF4AA\uF4AB\uF4B1\uF4B8\uF4BB"+
 117             "\uF4BC\uF4C4\uF4C5\uF4C9\uF4CC\uF4CD\uF4CE\uF4CF\uF4D1\uF4D3"+
 118             "\uF4D6\uF4D8\uF4DA\uF4DB\uF4DE\uF4E2\uF4E3\uF4E4\uF4E6\uF4E8"+
 119             "\uF4E9\uF4EC\uF4F1\uF4F2\uF4F3\uF4F7\uF3B6\uF3B5";
 120 
 121         private final String G3_c =
 122             "\u2116\u2121\u2160\u2161\u2162\u2163\u2164\u2165\u2166\u2167"+
 123             "\u2168\u2169\u2170\u2171\u2172\u2173\u2174\u2175\u2176\u2177"+
 124             "\u2178\u2179\u3231\u00A6\u4EFC\u50F4\u51EC\u5307\u5324\u548A"+
 125             "\u5759\u589E\u5BEC\u5CF5\u5D53\u5FB7\u6085\u6120\u654E\u663B"+
 126             "\u6665\u6801\u6A6B\u6AE2\u6DF2\u6DF8\u7028\u70BB\u7501\u7682"+
 127             "\u769E\u7930\u7AE7\u7DA0\u7DD6\u8362\u85B0\u8807\u8B7F\u8CF4"+
 128             "\u8D76\u90DE\u9115\u9592\u973B\u974D\u9751\u999E\u9AD9\u9B72"+
 129             "\u9ED1\uF86F\uF929\uF9DC\uFA0E\uFA0F\uFA10\uFA11\uFA12\uFA13"+
 130             "\uFA14\uFA15\uFA16\uFA17\uFA18\uFA19\uFA1A\uFA1B\uFA1C\uFA1D"+
 131             "\uFA1E\uFA1F\uFA20\uFA21\uFA22\uFA23\uFA24\uFA25\uFA26\uFA27"+
 132             "\uFA28\uFA29\uFA2A\uFA2B\uFA2C\uFA2D\uFF02\uFF07";
 133 
 134         protected Decoder(Charset cs) {
 135             this(cs, 0.5f, 1.0f, DEC0201, DEC0208, DEC0212);
 136         }
 137 
 138         protected Decoder(Charset cs, float avgCpb, float maxCpb,
 139                           SingleByte.Decoder dec0201,
 140                           DoubleByte.Decoder dec0208,
 141                           DoubleByte.Decoder dec0212) {
 142             super(cs, avgCpb, maxCpb);
 143             this.dec0201 = dec0201;
 144             this.dec0208 = dec0208;
 145             this.dec0212 = dec0212;
 146         }
 147 
 148 
 149         protected char decodeSingle(int b) {
 150             if (b < 0x8e)
 151                 return (char) b;
 152             if (b < 0x90)
 153                 return UNMAPPABLE_DECODING;
 154             if (b < 0xa0)
 155                 return (char) b;
 156             return UNMAPPABLE_DECODING;
 157         }
 158 
 159         protected char decodeUDC(int byte1, int byte2, int offset) {
 160             if ((byte1 >= 0xf5 && byte1 <= 0xfe)
 161                 && (byte2 >= 0xa1 && byte2 <= 0xfe)) {
 162                 return (char)((byte1 - 0xf5) * 94 + (byte2 - 0xa1) + offset);
 163             }
 164             return UNMAPPABLE_DECODING;
 165         }
 166 
 167         final static String g1_c = "\u00a2\u00a3\u00ac\\\u007e";
 168 
 169         protected char decodeDouble(int byte1, int byte2) {
 170             if (byte1 == 0x8e) {
 171                 if (byte2 < 0x80)
 172                     return UNMAPPABLE_DECODING;
 173                 char c = dec0201.decode((byte)byte2);
 174                 if (byte2 >= 0xe0 && byte2 <= 0xe4)
 175                     c = g1_c.charAt(byte2 - 0xe0);
 176                 return c;
 177             }
 178             if ((byte1 >= 0xa1 && byte1 <= 0xfe)
 179                 && (byte2 >= 0xa1 && byte2 <= 0xfe)) {
 180                 char c = (char)((byte1 << 8) + byte2);
 181                 int idx = G2_b.indexOf(c);
 182                 if (idx > -1)
 183                     return G2_c.charAt(idx);
 184             }
 185             char ch = dec0208.decodeDouble(byte1 - 0x80, byte2 - 0x80);
 186             if (ch == UNMAPPABLE_DECODING)
 187                 ch = decodeUDC(byte1, byte2, 0xe000);
 188             return ch;
 189         }
 190 
 191         protected char decodeDoubleG3(int byte1, int byte2) {
 192             if ((byte1 >= 0xa1 && byte1 <= 0xfe)
 193                 && (byte2 >= 0xa1 && byte2 <= 0xfe)) {
 194                 char c = (char)((byte1 << 8) + byte2);
 195                 int idx = G3_b.indexOf(c);
 196                 if (idx > -1)
 197                     return G3_c.charAt(idx);
 198             }
 199             char ch = dec0212.decodeDouble(byte1 - 0x80, byte2 - 0x80);
 200             if (ch == '\u2116')
 201                 ch = UNMAPPABLE_DECODING;
 202             if (ch != UNMAPPABLE_DECODING)
 203                 ch =  ibm943.canEncode(ch) ? ch : UNMAPPABLE_DECODING;
 204             if (ch == UNMAPPABLE_DECODING)
 205                 ch = decodeUDC(byte1, byte2, 0xe3ac);
 206             return ch;
 207         }
 208 
 209         private CoderResult decodeArrayLoop(ByteBuffer src,
 210                                             CharBuffer dst)
 211         {
 212             byte[] sa = src.array();
 213             int sp = src.arrayOffset() + src.position();
 214             int sl = src.arrayOffset() + src.limit();
 215             assert (sp <= sl);
 216             sp = (sp <= sl ? sp : sl);
 217 
 218             char[] da = dst.array();
 219             int dp = dst.arrayOffset() + dst.position();
 220             int dl = dst.arrayOffset() + dst.limit();
 221             assert (dp <= dl);
 222             dp = (dp <= dl ? dp : dl);
 223 
 224             int b1 = 0, b2 = 0;
 225             int inputSize = 0;
 226             char outputChar = UNMAPPABLE_DECODING;
 227             try {
 228                 while (sp < sl) {
 229                     b1 = sa[sp] & 0xff;
 230                     inputSize = 1;
 231 
 232                     outputChar = decodeSingle(b1);
 233                     if (outputChar == UNMAPPABLE_DECODING) { // Multibyte char

 234                         if (b1 == 0x8f) {           // JIS0212
 235                             if (sp + 3 > sl)
 236                                return CoderResult.UNDERFLOW;
 237                             b1 = sa[sp + 1] & 0xff;
 238                             b2 = sa[sp + 2] & 0xff;
 239                             inputSize += 2;
 240                             outputChar = decodeDoubleG3(b1, b2);


 241                         } else {                     // JIS0201, JIS0208
 242                             if (sp + 2 > sl)
 243                                return CoderResult.UNDERFLOW;
 244                             b2 = sa[sp + 1] & 0xff;
 245                             inputSize++;
 246                             outputChar = decodeDouble(b1, b2);
 247                         }
 248                     }
 249                     if (outputChar == UNMAPPABLE_DECODING) { // can't be decoded
 250                         return CoderResult.unmappableForLength(inputSize);
 251                     }
 252                     if (dp + 1 > dl)
 253                         return CoderResult.OVERFLOW;
 254                     da[dp++] = outputChar;
 255                     sp += inputSize;
 256                 }
 257                 return CoderResult.UNDERFLOW;
 258             } finally {
 259                 src.position(sp - src.arrayOffset());
 260                 dst.position(dp - dst.arrayOffset());
 261             }
 262         }
 263 
 264         private CoderResult decodeBufferLoop(ByteBuffer src,
 265                                              CharBuffer dst)
 266         {
 267             int mark = src.position();
 268             int b1 = 0, b2 = 0;
 269             int inputSize = 0;
 270             char outputChar = UNMAPPABLE_DECODING;
 271 
 272             try {
 273                 while (src.hasRemaining()) {
 274                     b1 = src.get() & 0xff;
 275                     inputSize = 1;
 276                     outputChar = decodeSingle(b1);
 277                     if (outputChar == UNMAPPABLE_DECODING) { // Multibyte char

 278                         if (b1 == 0x8f) {   // JIS0212
 279                             if (src.remaining() < 2)
 280                                return CoderResult.UNDERFLOW;
 281                             b1 = src.get() & 0xff;
 282                             b2 = src.get() & 0xff;
 283                             inputSize += 2;
 284                             outputChar = decodeDoubleG3(b1, b2);


 285                         } else {                     // JIS0201 JIS0208
 286                             if (src.remaining() < 1)
 287                                return CoderResult.UNDERFLOW;
 288                             b2 = src.get() & 0xff;
 289                             inputSize++;
 290                             outputChar = decodeDouble(b1, b2);
 291                         }
 292                     }
 293                     if (outputChar == UNMAPPABLE_DECODING) {
 294                         return CoderResult.unmappableForLength(inputSize);
 295                     }
 296                 if (dst.remaining() < 1)
 297                     return CoderResult.OVERFLOW;
 298                 dst.put(outputChar);
 299                 mark += inputSize;
 300                 }
 301                 return CoderResult.UNDERFLOW;
 302             } finally {
 303                 src.position(mark);
 304             }


 314         public void implReset() {
 315             super.implReset();
 316         }
 317         public CoderResult implFlush(CharBuffer out) {
 318             return super.implFlush(out);
 319         }
 320     }
 321 
 322 
 323     static class Encoder extends CharsetEncoder {
 324 
 325         final static SingleByte.Encoder ENC0201 =
 326             (SingleByte.Encoder)new JIS_X_0201().newEncoder();
 327 
 328         final static DoubleByte.Encoder ENC0208 =
 329             (DoubleByte.Encoder)new JIS_X_0208().newEncoder();
 330 
 331         final static DoubleByte.Encoder ENC0212 =
 332             (DoubleByte.Encoder)new JIS_X_0212().newEncoder();
 333 
 334         final static DoubleByte.Encoder ibm943 =
 335             (DoubleByte.Encoder)new IBM943().newEncoder();
 336 
 337         private final Surrogate.Parser sgp = new Surrogate.Parser();
 338 
 339         private final SingleByte.Encoder enc0201;
 340         private final DoubleByte.Encoder enc0208;
 341         private final DoubleByte.Encoder enc0212;
 342 
 343         private final String G2_c =
 344             "\u2015\u2211\u221F\u2225\u222E\u22BF\u2460\u2461\u2462\u2463"+
 345             "\u2464\u2465\u2466\u2467\u2468\u2469\u246A\u246B\u246C\u246D"+
 346             "\u246E\u246F\u2470\u2471\u2472\u2473\u301D\u301F\u3232\u3239"+
 347             "\u32A4\u32A5\u32A6\u32A7\u32A8\u3303\u330D\u3314\u3318\u3322"+
 348             "\u3323\u3326\u3327\u332B\u3336\u333B\u3349\u334A\u334D\u3351"+
 349             "\u3357\u337B\u337C\u337D\u337E\u338E\u338F\u339C\u339D\u339E"+
 350             "\u33A1\u33C4\u33CD\u4FE0\u525D\u555E\u5699\u56CA\u5861\u5C5B"+
 351             "\u5C62\u6414\u6451\u6522\u6805\u688E\u6F51\u7006\u7130\u7626"+
 352             "\u79B1\u7C1E\u7E48\u7E61\u7E6B\u8141\u8346\u840A\u8523\u87EC"+
 353             "\u881F\u8EC0\u91AC\u91B1\u9830\u9839\u985A\u9A52\u9DD7\u9E7C"+
 354             "\u9EB4\u9EB5\uFF0D\uFF5E\uFFE0\uFFE1\uFFE2";
 355 
 356         private final String G2_b =
 357             "\uA1BD\uADF4\uADF8\uA1C2\uADF3\uADF9\uADA1\uADA2\uADA3\uADA4"+
 358             "\uADA5\uADA6\uADA7\uADA8\uADA9\uADAA\uADAB\uADAC\uADAD\uADAE"+
 359             "\uADAF\uADB0\uADB1\uADB2\uADB3\uADB4\uADE0\uADE1\uADEB\uADEC"+
 360             "\uADE5\uADE6\uADE7\uADE8\uADE9\uADC6\uADCA\uADC1\uADC4\uADC2"+
 361             "\uADCC\uADCB\uADC5\uADCD\uADC7\uADCF\uADC0\uADCE\uADC3\uADC8"+
 362             "\uADC9\uADDF\uADEF\uADEE\uADED\uADD3\uADD4\uADD0\uADD1\uADD2"+
 363             "\uADD6\uADD5\uADE3\uB6A2\uC7ED\uB0A2\uB3FA\uC7B9\uC5B6\uD6A2"+
 364             "\uBCC8\uC1DF\uC4CF\uDAB9\uBAF4\uDBF4\uC8AE\uC6C2\uB1EB\uC1E9"+
 365             "\uC5F8\uC3BD\uE5DA\uBDAB\uB7D2\uE7A6\uB7D5\uCDE9\uBED5\uC0E6"+
 366             "\uCFB9\uB6ED\uBEDF\uC8B0\uCBCB\uF0F8\uC5BF\uC2CD\uB2AA\uB8B4"+
 367             "\uB9ED\uCCCD\uA1DD\uA1C1\uA1F1\uA1F2\uA2CC";
 368 
 369         private final String G3_c =
 370             "\u2116\u2121\u2160\u2161\u2162\u2163\u2164\u2165\u2166\u2167"+
 371             "\u2168\u2169\u2170\u2171\u2172\u2173\u2174\u2175\u2176\u2177"+
 372             "\u2178\u2179\u3231\u4EFC\u50F4\u51EC\u5307\u5324\u548A\u5759"+
 373             "\u589E\u5BEC\u5CF5\u5D53\u5FB7\u6085\u6120\u654E\u663B\u6665"+
 374             "\u6801\u6A6B\u6AE2\u6DF2\u6DF8\u7028\u70BB\u7501\u7682\u769E"+
 375             "\u7930\u7AE7\u7DA0\u7DD6\u8362\u85B0\u8807\u8B7F\u8CF4\u8D76"+
 376             "\u90DE\u9115\u9592\u973B\u974D\u9751\u999E\u9AD9\u9B72\u9ED1"+
 377             "\uF86F\uF929\uF9DC\uFA0E\uFA0F\uFA10\uFA11\uFA12\uFA13\uFA14"+
 378             "\uFA15\uFA16\uFA17\uFA18\uFA19\uFA1A\uFA1B\uFA1C\uFA1D\uFA1E"+
 379             "\uFA1F\uFA20\uFA21\uFA22\uFA23\uFA24\uFA25\uFA26\uFA27\uFA28"+
 380             "\uFA29\uFA2A\uFA2B\uFA2C\uFA2D\uFF02\uFF07\uFFE4";
 381 
 382         private final String G3_b =
 383             "\uF3B8\uF3B9\uF3AB\uF3AC\uF3AD\uF3AE\uF3AF\uF3B0\uF3B1\uF3B2"+
 384             "\uF3B3\uF3B4\uF3A1\uF3A2\uF3A3\uF3A4\uF3A5\uF3A6\uF3A7\uF3A8"+
 385             "\uF3A9\uF3AA\uF3B7\uF4A2\uF4A3\uF4A4\uF4A5\uF4A6\uF4A8\uF4A9"+
 386             "\uF4AC\uF4AE\uF4AF\uF4B0\uF4B2\uF4B3\uF4B4\uF4B5\uF4B6\uF4B7"+
 387             "\uF4BA\uF4BD\uF4BE\uF4C0\uF4BF\uF4C2\uF4A1\uF4C6\uF4C7\uF4C8"+
 388             "\uF4CB\uF4D0\uF4D4\uF4D5\uF4D7\uF4D9\uF4DC\uF4DF\uF4E0\uF4E1"+
 389             "\uF4E5\uF4E7\uF4EA\uF4ED\uF4EE\uF4EF\uF4F4\uF4F5\uF4F6\uF4F8"+
 390             "\uF3B8\uF4B9\uF4EB\uF4A7\uF4AA\uF4AB\uF4B1\uF4B8\uF4BB\uF4BC"+
 391             "\uF4C4\uF4C5\uF4C9\uF4CC\uF4CD\uF4CE\uF4CF\uF4D1\uF4D3\uF4D6"+
 392             "\uF4D8\uF4DA\uF4DB\uF4DE\uF4E2\uF4E3\uF4E4\uF4E6\uF4E8\uF4E9"+
 393             "\uF4EC\uF4F1\uF4F2\uF4F3\uF4F7\uF3B6\uF3B5\uA2C3";
 394 
 395         protected Encoder(Charset cs) {
 396             this(cs, 3.0f, 3.0f, ENC0201, ENC0208, ENC0212);
 397         }
 398 
 399         protected Encoder(Charset cs, float avgBpc, float maxBpc,
 400                           SingleByte.Encoder enc0201,
 401                           DoubleByte.Encoder enc0208,
 402                           DoubleByte.Encoder enc0212) {
 403             super(cs, avgBpc, maxBpc);
 404             this.enc0201 = enc0201;
 405             this.enc0208 = enc0208;
 406             this.enc0212 = enc0212;
 407         }
 408 
 409         public boolean canEncode(char c) {
 410             byte[]  encodedBytes = new byte[3];
 411             return encodeSingle(c, encodedBytes) != 0 ||
 412                    encodeDouble(c) != UNMAPPABLE_ENCODING;
 413         }
 414 
 415         private final static String G1_c = "\u00A2\u00A3\u00AC";
 416 
 417         protected int encodeSingle(char inputChar, byte[] outputByte) {
 418             if (inputChar >= 0x80 && inputChar < 0x8e) {
 419                 outputByte[0] = (byte)inputChar;
 420                 return 1;
 421             }
 422             if (inputChar >= 0x90 && inputChar < 0xa0) {
 423                 outputByte[0] = (byte)inputChar;
 424                 return 1;
 425             }
 426             int b = enc0201.encode(inputChar);
 427             if (b == UNMAPPABLE_ENCODING) {
 428                 int idx = G1_c.indexOf(inputChar);
 429                 if (idx > -1)
 430                     b = 0xe0 + idx;
 431             }
 432             if (b == UNMAPPABLE_ENCODING)
 433                 return 0;
 434             if (b >= 0 && b < 128) {
 435                 outputByte[0] = (byte)b;
 436                 return 1;
 437             }
 438             outputByte[0] = (byte)0x8e;
 439             outputByte[1] = (byte)b;
 440             return 2;
 441         }
 442 
 443         protected int encodeUDC(char ch) {
 444             if (ch >= '\ue000' && ch <= '\ue757') {
 445                 if (ch < '\ue3ac') {
 446                    int offset = (int)ch - 0xe000;
 447                    int b = ((offset / 94) << 8) + (offset % 94);
 448                    return b + 0xf5a1;
 449                 } else {
 450                    int offset = (int)ch - 0xe3ac;
 451                    int b = ((offset / 94) << 8) + (offset % 94);
 452                    return b + 0x8ff5a1;
 453                 }
 454             }
 455             return UNMAPPABLE_ENCODING;
 456         }
 457 
 458         protected int encodeDouble(char ch) {
 459             int idx = G2_c.indexOf(ch);
 460             if (idx > -1)
 461                 return (int)G2_b.charAt(idx);
 462             idx = G3_c.indexOf(ch);
 463             if (idx > -1)
 464                 return (int)G3_b.charAt(idx) + 0x8f0000;
 465             int b = enc0208.encodeChar(ch);
 466             if (b != UNMAPPABLE_ENCODING)
 467                 return b + 0x8080;
 468             b = encodeUDC(ch);

 469             if (b != UNMAPPABLE_ENCODING)
 470                 return b;
 471             if (ibm943.canEncode(ch)) {
 472                 b = enc0212.encodeChar(ch);
 473                 if (b != UNMAPPABLE_ENCODING) {
 474                     b += 0x8F8080;
 475                     return b;
 476                 }
 477             }
 478             return b;
 479         }
 480 
 481         private CoderResult encodeArrayLoop(CharBuffer src,
 482                                             ByteBuffer dst)
 483         {
 484             char[] sa = src.array();
 485             int sp = src.arrayOffset() + src.position();
 486             int sl = src.arrayOffset() + src.limit();
 487             assert (sp <= sl);
 488             sp = (sp <= sl ? sp : sl);
 489             byte[] da = dst.array();
 490             int dp = dst.arrayOffset() + dst.position();
 491             int dl = dst.arrayOffset() + dst.limit();
 492             assert (dp <= dl);
 493             dp = (dp <= dl ? dp : dl);
 494 
 495             int outputSize = 0;
 496             byte[]  outputByte;


< prev index next >