| /* |
| * Copyright (c) 2002, 2007, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.nio.cs.ext; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.CharBuffer; |
| import java.nio.charset.Charset; |
| import java.nio.charset.CharsetDecoder; |
| import java.nio.charset.CharsetEncoder; |
| import java.nio.charset.CoderResult; |
| import java.nio.charset.CodingErrorAction; |
| import sun.nio.cs.HistoricallyNamedCharset; |
| import sun.nio.cs.Surrogate; |
| import sun.nio.cs.US_ASCII; |
| |
| /* |
| * Implementation notes: |
| * |
| * (1)"Standard based" (ASCII, JIS_X_0201 and JIS_X_0208) ISO2022-JP charset |
| * is provided by the base implementation of this class. |
| * |
| * Three Microsoft ISO2022-JP variants, MS50220, MS50221 and MSISO2022JP |
| * are provided via subclasses. |
| * |
| * (2)MS50220 and MS50221 are assumed to work the same way as Microsoft |
| * CP50220 and CP50221's 7-bit implementation works by using CP5022X |
| * specific JIS0208 and JIS0212 mapping tables (generated via Microsoft's |
| * MultiByteToWideChar/WideCharToMultiByte APIs). The only difference |
| * between these 2 classes is that MS50220 does not support singlebyte |
| * halfwidth kana (Uff61-Uff9f) shiftin mechanism when "encoding", instead |
| * these halfwidth kana characters are converted to their fullwidth JIS0208 |
| * counterparts. |
| * |
| * The difference between the standard JIS_X_0208 and JIS_X_0212 mappings |
| * and the CP50220/50221 specific are |
| * |
| * 0208 mapping: |
| * 1)0x213d <-> U2015 (compared to U2014) |
| * 2)One way mappings for 5 characters below |
| * u2225 (ms) -> 0x2142 <-> u2016 (jis) |
| * uff0d (ms) -> 0x215d <-> u2212 (jis) |
| * uffe0 (ms) -> 0x2171 <-> u00a2 (jis) |
| * uffe1 (ms) -> 0x2172 <-> u00a3 (jis) |
| * uffe2 (ms) -> 0x224c <-> u00ac (jis) |
| * //should consider 0xff5e -> 0x2141 <-> U301c? |
| * 3)NEC Row13 0x2d21-0x2d79 |
| * 4)85-94 ku <-> UE000,UE3AB (includes NEC selected |
| * IBM kanji in 89-92ku) |
| * 5)UFF61-UFF9f -> Fullwidth 0208 KANA |
| * |
| * 0212 mapping: |
| * 1)0x2237 <-> UFF5E (Fullwidth Tilde) |
| * 2)0x2271 <-> U2116 (Numero Sign) |
| * 3)85-94 ku <-> UE3AC - UE757 |
| * |
| * (3)MSISO2022JP uses a JIS0208 mapping generated from MS932DB.b2c |
| * and MS932DB.c2b by converting the SJIS codepoints back to their |
| * JIS0208 counterparts. With the exception of |
| * |
| * (a)Codepoints with a resulting JIS0208 codepoints beyond 0x7e00 are |
| * dropped (this includs the IBM Extended Kanji/Non-kanji from 0x9321 |
| * to 0x972c) |
| * (b)The Unicode codepoints that the IBM Extended Kanji/Non-kanji are |
| * mapped to (in MS932) are mapped back to NEC selected IBM Kanji/ |
| * Non-kanji area at 0x7921-0x7c7e. |
| * |
| * Compared to JIS_X_0208 mapping, this MS932 based mapping has |
| |
| * (a)different mappings for 7 JIS codepoints |
| * 0x213d <-> U2015 |
| * 0x2141 <-> UFF5E |
| * 0x2142 <-> U2225 |
| * 0x215d <-> Uff0d |
| * 0x2171 <-> Uffe0 |
| * 0x2172 <-> Uffe1 |
| * 0x224c <-> Uffe2 |
| * (b)added one-way c2b mappings for |
| * U00b8 -> 0x2124 |
| * U00b7 -> 0x2126 |
| * U00af -> 0x2131 |
| * U00ab -> 0x2263 |
| * U00bb -> 0x2264 |
| * U3094 -> 0x2574 |
| * U00b5 -> 0x264c |
| * (c)NEC Row 13 |
| * (d)NEC selected IBM extended Kanji/Non-kanji |
| * These codepoints are mapped to the same Unicode codepoints as |
| * the MS932 does, while MS50220/50221 maps them to the Unicode |
| * private area. |
| * |
| * # There is also an interesting difference when compared to MS5022X |
| * 0208 mapping for JIS codepoint "0x2D60", MS932 maps it to U301d |
| * but MS5022X maps it to U301e, obvious MS5022X is wrong, but... |
| */ |
| |
| public class ISO2022_JP |
| extends Charset |
| implements HistoricallyNamedCharset |
| { |
| private static final int ASCII = 0; // ESC ( B |
| private static final int JISX0201_1976 = 1; // ESC ( J |
| private static final int JISX0208_1978 = 2; // ESC $ @ |
| private static final int JISX0208_1983 = 3; // ESC $ B |
| private static final int JISX0212_1990 = 4; // ESC $ ( D |
| private static final int JISX0201_1976_KANA = 5; // ESC ( I |
| private static final int SHIFTOUT = 6; |
| |
| private static final int ESC = 0x1b; |
| private static final int SO = 0x0e; |
| private static final int SI = 0x0f; |
| |
| public ISO2022_JP() { |
| super("ISO-2022-JP", |
| ExtendedCharsets.aliasesFor("ISO-2022-JP")); |
| } |
| |
| protected ISO2022_JP(String canonicalName, |
| String[] aliases) { |
| super(canonicalName, aliases); |
| } |
| |
| public String historicalName() { |
| return "ISO2022JP"; |
| } |
| |
| public boolean contains(Charset cs) { |
| return ((cs instanceof JIS_X_0201) |
| || (cs instanceof US_ASCII) |
| || (cs instanceof JIS_X_0208) |
| || (cs instanceof ISO2022_JP)); |
| } |
| |
| public CharsetDecoder newDecoder() { |
| return new Decoder(this, |
| getDecIndex1(), |
| getDecIndex2(), |
| get0212Decoder()); |
| } |
| |
| public CharsetEncoder newEncoder() { |
| return new Encoder(this, |
| getEncIndex1(), |
| getEncIndex2(), |
| get0212Encoder(), |
| doSBKANA()); |
| } |
| |
| protected short[] getDecIndex1() { |
| return JIS_X_0208_Decoder.getIndex1(); |
| } |
| |
| protected String[] getDecIndex2() { |
| return JIS_X_0208_Decoder.getIndex2(); |
| } |
| |
| protected DoubleByteDecoder get0212Decoder() { |
| return null; |
| } |
| |
| protected short[] getEncIndex1() { |
| return JIS_X_0208_Encoder.getIndex1(); |
| } |
| |
| protected String[] getEncIndex2() { |
| return JIS_X_0208_Encoder.getIndex2(); |
| } |
| |
| protected DoubleByteEncoder get0212Encoder() { |
| return null; |
| } |
| |
| protected boolean doSBKANA() { |
| return true; |
| } |
| |
| private static class Decoder extends DoubleByteDecoder |
| implements DelegatableDecoder { |
| |
| private int currentState; |
| private int previousState; |
| private DoubleByteDecoder decoder0212; |
| |
| protected Decoder(Charset cs, |
| short[] index1, |
| String[] index2, |
| DoubleByteDecoder decoder0212) { |
| super(cs, |
| index1, |
| index2, |
| 0x21, |
| 0x7e); |
| this.decoder0212 = decoder0212; |
| currentState = ASCII; |
| previousState = ASCII; |
| } |
| |
| protected char convSingleByte(int b) { |
| return REPLACE_CHAR; |
| } |
| |
| public void implReset() { |
| currentState = ASCII; |
| previousState = ASCII; |
| } |
| |
| private CoderResult decodeArrayLoop(ByteBuffer src, |
| CharBuffer dst) |
| { |
| int inputSize = 0; |
| int b1 = 0, b2 = 0, b3 = 0, b4 = 0; |
| char c = REPLACE_CHAR; |
| byte[] sa = src.array(); |
| int sp = src.arrayOffset() + src.position(); |
| int sl = src.arrayOffset() + src.limit(); |
| assert (sp <= sl); |
| sp = (sp <= sl ? sp : sl); |
| |
| char[] da = dst.array(); |
| int dp = dst.arrayOffset() + dst.position(); |
| int dl = dst.arrayOffset() + dst.limit(); |
| assert (dp <= dl); |
| dp = (dp <= dl ? dp : dl); |
| |
| try { |
| while (sp < sl) { |
| b1 = sa[sp] & 0xff; |
| inputSize = 1; |
| if ((b1 & 0x80) != 0) { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| if (b1 == ESC || b1 == SO || b1 == SI) { |
| if (b1 == ESC) { |
| if (sp + inputSize + 2 > sl) |
| return CoderResult.UNDERFLOW; |
| b2 = sa[sp + inputSize++] & 0xff; |
| if (b2 == '(') { |
| b3 = sa[sp + inputSize++] & 0xff; |
| if (b3 == 'B'){ |
| currentState = ASCII; |
| } else if (b3 == 'J'){ |
| currentState = JISX0201_1976; |
| } else if (b3 == 'I'){ |
| currentState = JISX0201_1976_KANA; |
| } else { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| } else if (b2 == '$'){ |
| b3 = sa[sp + inputSize++] & 0xff; |
| if (b3 == '@'){ |
| currentState = JISX0208_1978; |
| } else if (b3 == 'B'){ |
| currentState = JISX0208_1983; |
| } else if (b3 == '(' && decoder0212 != null) { |
| if (sp + inputSize + 1 > sl) |
| return CoderResult.UNDERFLOW; |
| b4 = sa[sp + inputSize++] & 0xff; |
| if (b4 == 'D') { |
| currentState = JISX0212_1990; |
| } else { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| } else { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| } else { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| } else if (b1 == SO) { |
| previousState = currentState; |
| currentState = SHIFTOUT; |
| } else if (b1 == SI) { |
| currentState = previousState; |
| } |
| sp += inputSize; |
| continue; |
| } |
| if (dp + 1 > dl) |
| return CoderResult.OVERFLOW; |
| |
| switch (currentState){ |
| case ASCII: |
| da[dp++] = (char)(b1 & 0xff); |
| break; |
| case JISX0201_1976: |
| switch (b1) { |
| case 0x5c: // Yen/tilde substitution |
| da[dp++] = '\u00a5'; |
| break; |
| case 0x7e: |
| da[dp++] = '\u203e'; |
| break; |
| default: |
| da[dp++] = (char)b1; |
| break; |
| } |
| break; |
| case JISX0208_1978: |
| case JISX0208_1983: |
| if (sp + inputSize + 1 > sl) |
| return CoderResult.UNDERFLOW; |
| b2 = sa[sp + inputSize++] & 0xff; |
| c = decodeDouble(b1,b2); |
| if (c == REPLACE_CHAR) |
| return CoderResult.unmappableForLength(inputSize); |
| da[dp++] = c; |
| break; |
| case JISX0212_1990: |
| if (sp + inputSize + 1 > sl) |
| return CoderResult.UNDERFLOW; |
| b2 = sa[sp + inputSize++] & 0xff; |
| c = decoder0212.decodeDouble(b1,b2); |
| if (c == REPLACE_CHAR) |
| return CoderResult.unmappableForLength(inputSize); |
| da[dp++] = c; |
| break; |
| case JISX0201_1976_KANA: |
| case SHIFTOUT: |
| if (b1 > 0x60) { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| da[dp++] = (char)(b1 + 0xff40); |
| break; |
| } |
| sp += inputSize; |
| } |
| return CoderResult.UNDERFLOW; |
| } finally { |
| src.position(sp - src.arrayOffset()); |
| dst.position(dp - dst.arrayOffset()); |
| } |
| } |
| |
| private CoderResult decodeBufferLoop(ByteBuffer src, |
| CharBuffer dst) |
| { |
| int mark = src.position(); |
| int b1 = 0, b2 = 0, b3 = 0, b4=0; |
| char c = REPLACE_CHAR; |
| int inputSize = 0; |
| try { |
| while (src.hasRemaining()) { |
| b1 = src.get() & 0xff; |
| inputSize = 1; |
| if ((b1 & 0x80) != 0) |
| return CoderResult.malformedForLength(inputSize); |
| if (b1 == ESC || b1 == SO || b1 == SI) { |
| if (b1 == ESC) { // ESC |
| if (src.remaining() < 2) |
| return CoderResult.UNDERFLOW; |
| b2 = src.get() & 0xff; |
| inputSize++; |
| if (b2 == '(') { |
| b3 = src.get() & 0xff; |
| inputSize++; |
| if (b3 == 'B'){ |
| currentState = ASCII; |
| } else if (b3 == 'J'){ |
| currentState = JISX0201_1976; |
| } else if (b3 == 'I'){ |
| currentState = JISX0201_1976_KANA; |
| } else { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| } else if (b2 == '$'){ |
| b3 = src.get() & 0xff; |
| inputSize++; |
| if (b3 == '@'){ |
| currentState = JISX0208_1978; |
| } else if (b3 == 'B'){ |
| currentState = JISX0208_1983; |
| } else if (b3 == '(' && decoder0212 != null) { |
| if (!src.hasRemaining()) |
| return CoderResult.UNDERFLOW; |
| b4 = src.get() & 0xff; |
| inputSize++; |
| if (b4 == 'D') { |
| currentState = JISX0212_1990; |
| } else { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| } else { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| } else { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| } else if (b1 == SO) { |
| previousState = currentState; |
| currentState = SHIFTOUT; |
| } else if (b1 == SI) { // shift back in |
| currentState = previousState; |
| } |
| mark += inputSize; |
| continue; |
| } |
| if (!dst.hasRemaining()) |
| return CoderResult.OVERFLOW; |
| |
| switch (currentState){ |
| case ASCII: |
| dst.put((char)(b1 & 0xff)); |
| break; |
| case JISX0201_1976: |
| switch (b1) { |
| case 0x5c: // Yen/tilde substitution |
| dst.put('\u00a5'); |
| break; |
| case 0x7e: |
| dst.put('\u203e'); |
| break; |
| default: |
| dst.put((char)b1); |
| break; |
| } |
| break; |
| case JISX0208_1978: |
| case JISX0208_1983: |
| if (!src.hasRemaining()) |
| return CoderResult.UNDERFLOW; |
| b2 = src.get() & 0xff; |
| inputSize++; |
| c = decodeDouble(b1,b2); |
| if (c == REPLACE_CHAR) |
| return CoderResult.unmappableForLength(inputSize); |
| dst.put(c); |
| break; |
| case JISX0212_1990: |
| if (!src.hasRemaining()) |
| return CoderResult.UNDERFLOW; |
| b2 = src.get() & 0xff; |
| inputSize++; |
| c = decoder0212.decodeDouble(b1,b2); |
| if (c == REPLACE_CHAR) |
| return CoderResult.unmappableForLength(inputSize); |
| dst.put(c); |
| break; |
| case JISX0201_1976_KANA: |
| case SHIFTOUT: |
| if (b1 > 0x60) { |
| return CoderResult.malformedForLength(inputSize); |
| } |
| dst.put((char)(b1 + 0xff40)); |
| break; |
| } |
| mark += inputSize; |
| } |
| return CoderResult.UNDERFLOW; |
| } finally { |
| src.position(mark); |
| } |
| } |
| |
| // Make some protected methods public for use by JISAutoDetect |
| public CoderResult decodeLoop(ByteBuffer src, CharBuffer dst) { |
| if (src.hasArray() && dst.hasArray()) |
| return decodeArrayLoop(src, dst); |
| else |
| return decodeBufferLoop(src, dst); |
| } |
| |
| public CoderResult implFlush(CharBuffer out) { |
| return super.implFlush(out); |
| } |
| } |
| |
| private static class Encoder extends DoubleByteEncoder { |
| private static byte[] repl = { (byte)0x21, (byte)0x29 }; |
| private int currentMode = ASCII; |
| private int replaceMode = JISX0208_1983; |
| private DoubleByteEncoder encoder0212 = null; |
| private boolean doSBKANA; |
| |
| private Encoder(Charset cs, |
| short[] index1, |
| String[] index2, |
| DoubleByteEncoder encoder0212, |
| boolean doSBKANA) { |
| super(cs, |
| index1, |
| index2, |
| repl, |
| 4.0f, |
| (encoder0212 != null)? 9.0f : 8.0f); |
| this.encoder0212 = encoder0212; |
| this.doSBKANA = doSBKANA; |
| } |
| |
| protected int encodeSingle(char inputChar) { |
| return -1; |
| } |
| |
| protected void implReset() { |
| currentMode = ASCII; |
| } |
| |
| protected void implReplaceWith(byte[] newReplacement) { |
| /* It's almost impossible to decide which charset they belong |
| to. The best thing we can do here is to "guess" based on |
| the length of newReplacement. |
| */ |
| if (newReplacement.length == 1) { |
| replaceMode = ASCII; |
| } else if (newReplacement.length == 2) { |
| replaceMode = JISX0208_1983; |
| } |
| } |
| |
| protected CoderResult implFlush(ByteBuffer out) { |
| if (currentMode != ASCII) { |
| if (out.remaining() < 3) |
| return CoderResult.OVERFLOW; |
| out.put((byte)0x1b); |
| out.put((byte)0x28); |
| out.put((byte)0x42); |
| currentMode = ASCII; |
| } |
| return CoderResult.UNDERFLOW; |
| } |
| |
| public boolean canEncode(char c) { |
| return ((c <= '\u007F') || |
| (c >= 0xFF61 && c <= 0xFF9F) || |
| (c == '\u00A5') || |
| (c == '\u203E') || |
| super.canEncode(c) || |
| (encoder0212!=null && encoder0212.canEncode(c))); |
| } |
| |
| private final Surrogate.Parser sgp = new Surrogate.Parser(); |
| |
| private CoderResult encodeArrayLoop(CharBuffer src, |
| ByteBuffer dst) |
| { |
| char[] sa = src.array(); |
| int sp = src.arrayOffset() + src.position(); |
| int sl = src.arrayOffset() + src.limit(); |
| assert (sp <= sl); |
| sp = (sp <= sl ? sp : sl); |
| byte[] da = dst.array(); |
| int dp = dst.arrayOffset() + dst.position(); |
| int dl = dst.arrayOffset() + dst.limit(); |
| assert (dp <= dl); |
| dp = (dp <= dl ? dp : dl); |
| |
| try { |
| while (sp < sl) { |
| char c = sa[sp]; |
| if (c <= '\u007F') { |
| if (currentMode != ASCII) { |
| if (dl - dp < 3) |
| return CoderResult.OVERFLOW; |
| da[dp++] = (byte)0x1b; |
| da[dp++] = (byte)0x28; |
| da[dp++] = (byte)0x42; |
| currentMode = ASCII; |
| } |
| if (dl - dp < 1) |
| return CoderResult.OVERFLOW; |
| da[dp++] = (byte)c; |
| } else if (c >= 0xff61 && c <= 0xff9f && doSBKANA) { |
| //a single byte kana |
| if (currentMode != JISX0201_1976_KANA) { |
| if (dl - dp < 3) |
| return CoderResult.OVERFLOW; |
| da[dp++] = (byte)0x1b; |
| da[dp++] = (byte)0x28; |
| da[dp++] = (byte)0x49; |
| currentMode = JISX0201_1976_KANA; |
| } |
| if (dl - dp < 1) |
| return CoderResult.OVERFLOW; |
| da[dp++] = (byte)(c - 0xff40); |
| } else if (c == '\u00A5' || c == '\u203E') { |
| //backslash or tilde |
| if (currentMode != JISX0201_1976) { |
| if (dl - dp < 3) |
| return CoderResult.OVERFLOW; |
| da[dp++] = (byte)0x1b; |
| da[dp++] = (byte)0x28; |
| da[dp++] = (byte)0x4a; |
| currentMode = JISX0201_1976; |
| } |
| if (dl - dp < 1) |
| return CoderResult.OVERFLOW; |
| da[dp++] = (c == '\u00A5')?(byte)0x5C:(byte)0x7e; |
| } else { |
| int index = encodeDouble(c); |
| if (index != 0) { |
| if (currentMode != JISX0208_1983) { |
| if (dl - dp < 3) |
| return CoderResult.OVERFLOW; |
| da[dp++] = (byte)0x1b; |
| da[dp++] = (byte)0x24; |
| da[dp++] = (byte)0x42; |
| currentMode = JISX0208_1983; |
| } |
| if (dl - dp < 2) |
| return CoderResult.OVERFLOW; |
| da[dp++] = (byte)(index >> 8); |
| da[dp++] = (byte)(index & 0xff); |
| } else if (encoder0212 != null && |
| (index = encoder0212.encodeDouble(c)) != 0) { |
| if (currentMode != JISX0212_1990) { |
| if (dl - dp < 4) |
| return CoderResult.OVERFLOW; |
| da[dp++] = (byte)0x1b; |
| da[dp++] = (byte)0x24; |
| da[dp++] = (byte)0x28; |
| da[dp++] = (byte)0x44; |
| currentMode = JISX0212_1990; |
| } |
| if (dl - dp < 2) |
| return CoderResult.OVERFLOW; |
| da[dp++] = (byte)(index >> 8); |
| da[dp++] = (byte)(index & 0xff); |
| } else { |
| if (Character.isSurrogate(c) && sgp.parse(c, sa, sp, sl) < 0) |
| return sgp.error(); |
| if (unmappableCharacterAction() |
| == CodingErrorAction.REPLACE |
| && currentMode != replaceMode) { |
| if (dl - dp < 3) |
| return CoderResult.OVERFLOW; |
| if (replaceMode == ASCII) { |
| da[dp++] = (byte)0x1b; |
| da[dp++] = (byte)0x28; |
| da[dp++] = (byte)0x42; |
| } else { |
| da[dp++] = (byte)0x1b; |
| da[dp++] = (byte)0x24; |
| da[dp++] = (byte)0x42; |
| } |
| currentMode = replaceMode; |
| } |
| if (Character.isSurrogate(c)) |
| return sgp.unmappableResult(); |
| return CoderResult.unmappableForLength(1); |
| } |
| } |
| sp++; |
| } |
| return CoderResult.UNDERFLOW; |
| } finally { |
| src.position(sp - src.arrayOffset()); |
| dst.position(dp - dst.arrayOffset()); |
| } |
| } |
| |
| private CoderResult encodeBufferLoop(CharBuffer src, |
| ByteBuffer dst) |
| { |
| int mark = src.position(); |
| try { |
| while (src.hasRemaining()) { |
| char c = src.get(); |
| |
| if (c <= '\u007F') { |
| if (currentMode != ASCII) { |
| if (dst.remaining() < 3) |
| return CoderResult.OVERFLOW; |
| dst.put((byte)0x1b); |
| dst.put((byte)0x28); |
| dst.put((byte)0x42); |
| currentMode = ASCII; |
| } |
| if (dst.remaining() < 1) |
| return CoderResult.OVERFLOW; |
| dst.put((byte)c); |
| } else if (c >= 0xff61 && c <= 0xff9f && doSBKANA) { |
| //Is it a single byte kana? |
| if (currentMode != JISX0201_1976_KANA) { |
| if (dst.remaining() < 3) |
| return CoderResult.OVERFLOW; |
| dst.put((byte)0x1b); |
| dst.put((byte)0x28); |
| dst.put((byte)0x49); |
| currentMode = JISX0201_1976_KANA; |
| } |
| if (dst.remaining() < 1) |
| return CoderResult.OVERFLOW; |
| dst.put((byte)(c - 0xff40)); |
| } else if (c == '\u00a5' || c == '\u203E') { |
| if (currentMode != JISX0201_1976) { |
| if (dst.remaining() < 3) |
| return CoderResult.OVERFLOW; |
| dst.put((byte)0x1b); |
| dst.put((byte)0x28); |
| dst.put((byte)0x4a); |
| currentMode = JISX0201_1976; |
| } |
| if (dst.remaining() < 1) |
| return CoderResult.OVERFLOW; |
| dst.put((c == '\u00A5')?(byte)0x5C:(byte)0x7e); |
| } else { |
| int index = encodeDouble(c); |
| if (index != 0) { |
| if (currentMode != JISX0208_1983) { |
| if (dst.remaining() < 3) |
| return CoderResult.OVERFLOW; |
| dst.put((byte)0x1b); |
| dst.put((byte)0x24); |
| dst.put((byte)0x42); |
| currentMode = JISX0208_1983; |
| } |
| if (dst.remaining() < 2) |
| return CoderResult.OVERFLOW; |
| dst.put((byte)(index >> 8)); |
| dst.put((byte)(index & 0xff)); |
| } else if (encoder0212 != null && |
| (index = encoder0212.encodeDouble(c)) != 0) { |
| if (currentMode != JISX0212_1990) { |
| if (dst.remaining() < 4) |
| return CoderResult.OVERFLOW; |
| dst.put((byte)0x1b); |
| dst.put((byte)0x24); |
| dst.put((byte)0x28); |
| dst.put((byte)0x44); |
| currentMode = JISX0212_1990; |
| } |
| if (dst.remaining() < 2) |
| return CoderResult.OVERFLOW; |
| dst.put((byte)(index >> 8)); |
| dst.put((byte)(index & 0xff)); |
| } else { |
| if (Character.isSurrogate(c) && sgp.parse(c, src) < 0) |
| return sgp.error(); |
| if (unmappableCharacterAction() == CodingErrorAction.REPLACE |
| && currentMode != replaceMode) { |
| if (dst.remaining() < 3) |
| return CoderResult.OVERFLOW; |
| if (replaceMode == ASCII) { |
| dst.put((byte)0x1b); |
| dst.put((byte)0x28); |
| dst.put((byte)0x42); |
| } else { |
| dst.put((byte)0x1b); |
| dst.put((byte)0x24); |
| dst.put((byte)0x42); |
| } |
| currentMode = replaceMode; |
| } |
| if (Character.isSurrogate(c)) |
| return sgp.unmappableResult(); |
| return CoderResult.unmappableForLength(1); |
| } |
| } |
| mark++; |
| } |
| return CoderResult.UNDERFLOW; |
| } finally { |
| src.position(mark); |
| } |
| } |
| |
| protected CoderResult encodeLoop(CharBuffer src, |
| ByteBuffer dst) |
| { |
| if (src.hasArray() && dst.hasArray()) |
| return encodeArrayLoop(src, dst); |
| else |
| return encodeBufferLoop(src, dst); |
| } |
| } |
| } |
