| /* |
| * Copyright (c) 2002, 2012, 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 $PACKAGE$; |
| |
| 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 sun.nio.cs.HistoricallyNamedCharset; |
| import sun.nio.cs.DelegatableDecoder; |
| import sun.nio.cs.DoubleByte; |
| import sun.nio.cs.Surrogate; |
| import sun.nio.cs.SingleByte; |
| import sun.nio.cs.*; |
| import static sun.nio.cs.CharsetMapping.*; |
| |
| public class EUC_JP |
| extends Charset |
| implements HistoricallyNamedCharset |
| { |
| public EUC_JP() { |
| super("EUC-JP", $ALIASES$); |
| } |
| |
| public String historicalName() { |
| return "EUC_JP"; |
| } |
| |
| public boolean contains(Charset cs) { |
| return ((cs.name().equals("US-ASCII")) |
| || (cs instanceof JIS_X_0201) |
| || (cs instanceof JIS_X_0208) |
| || (cs instanceof JIS_X_0212) |
| || (cs instanceof EUC_JP)); |
| } |
| |
| public CharsetDecoder newDecoder() { |
| return new Decoder(this); |
| } |
| |
| public CharsetEncoder newEncoder() { |
| return new Encoder(this); |
| } |
| |
| static class Decoder extends CharsetDecoder |
| implements DelegatableDecoder { |
| |
| final static SingleByte.Decoder DEC0201 = |
| (SingleByte.Decoder)new JIS_X_0201().newDecoder(); |
| |
| final static DoubleByte.Decoder DEC0208 = |
| (DoubleByte.Decoder)new JIS_X_0208().newDecoder(); |
| |
| final static DoubleByte.Decoder DEC0212 = |
| (DoubleByte.Decoder)new JIS_X_0212().newDecoder(); |
| |
| private final SingleByte.Decoder dec0201; |
| private final DoubleByte.Decoder dec0208; |
| private final DoubleByte.Decoder dec0212; |
| |
| protected Decoder(Charset cs) { |
| this(cs, 0.5f, 1.0f, DEC0201, DEC0208, DEC0212); |
| } |
| |
| protected Decoder(Charset cs, float avgCpb, float maxCpb, |
| SingleByte.Decoder dec0201, |
| DoubleByte.Decoder dec0208, |
| DoubleByte.Decoder dec0212) { |
| super(cs, avgCpb, maxCpb); |
| this.dec0201 = dec0201; |
| this.dec0208 = dec0208; |
| this.dec0212 = dec0212; |
| } |
| |
| |
| protected char decodeDouble(int byte1, int byte2) { |
| if (byte1 == 0x8e) { |
| if (byte2 < 0x80) |
| return UNMAPPABLE_DECODING; |
| return dec0201.decode((byte)byte2); |
| } |
| return dec0208.decodeDouble(byte1 - 0x80, byte2 - 0x80); |
| } |
| |
| private CoderResult decodeArrayLoop(ByteBuffer src, |
| CharBuffer dst) |
| { |
| 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); |
| |
| int b1 = 0, b2 = 0; |
| int inputSize = 0; |
| char outputChar = UNMAPPABLE_DECODING; |
| try { |
| while (sp < sl) { |
| b1 = sa[sp] & 0xff; |
| inputSize = 1; |
| |
| if ((b1 & 0x80) == 0) { |
| outputChar = (char)b1; |
| } else { // Multibyte char |
| if (b1 == 0x8f) { // JIS0212 |
| if (sp + 3 > sl) |
| return CoderResult.UNDERFLOW; |
| b1 = sa[sp + 1] & 0xff; |
| b2 = sa[sp + 2] & 0xff; |
| inputSize += 2; |
| if (dec0212 == null) // JIS02012 not supported |
| return CoderResult.unmappableForLength(inputSize); |
| outputChar = dec0212.decodeDouble(b1-0x80, b2-0x80); |
| } else { // JIS0201, JIS0208 |
| if (sp + 2 > sl) |
| return CoderResult.UNDERFLOW; |
| b2 = sa[sp + 1] & 0xff; |
| inputSize++; |
| outputChar = decodeDouble(b1, b2); |
| } |
| } |
| if (outputChar == UNMAPPABLE_DECODING) { // can't be decoded |
| return CoderResult.unmappableForLength(inputSize); |
| } |
| if (dp + 1 > dl) |
| return CoderResult.OVERFLOW; |
| da[dp++] = outputChar; |
| 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; |
| int inputSize = 0; |
| char outputChar = UNMAPPABLE_DECODING; |
| |
| try { |
| while (src.hasRemaining()) { |
| b1 = src.get() & 0xff; |
| inputSize = 1; |
| if ((b1 & 0x80) == 0) { |
| outputChar = (char)b1; |
| } else { // Multibyte char |
| if (b1 == 0x8f) { // JIS0212 |
| if (src.remaining() < 2) |
| return CoderResult.UNDERFLOW; |
| b1 = src.get() & 0xff; |
| b2 = src.get() & 0xff; |
| inputSize += 2; |
| if (dec0212 == null) // JIS02012 not supported |
| return CoderResult.unmappableForLength(inputSize); |
| outputChar = dec0212.decodeDouble(b1-0x80, b2-0x80); |
| } else { // JIS0201 JIS0208 |
| if (src.remaining() < 1) |
| return CoderResult.UNDERFLOW; |
| b2 = src.get() & 0xff; |
| inputSize++; |
| outputChar = decodeDouble(b1, b2); |
| } |
| } |
| if (outputChar == UNMAPPABLE_DECODING) { |
| return CoderResult.unmappableForLength(inputSize); |
| } |
| if (dst.remaining() < 1) |
| return CoderResult.OVERFLOW; |
| dst.put(outputChar); |
| 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 void implReset() { |
| super.implReset(); |
| } |
| public CoderResult implFlush(CharBuffer out) { |
| return super.implFlush(out); |
| } |
| } |
| |
| |
| static class Encoder extends CharsetEncoder { |
| |
| final static SingleByte.Encoder ENC0201 = |
| (SingleByte.Encoder)new JIS_X_0201().newEncoder(); |
| |
| final static DoubleByte.Encoder ENC0208 = |
| (DoubleByte.Encoder)new JIS_X_0208().newEncoder(); |
| |
| final static DoubleByte.Encoder ENC0212 = |
| (DoubleByte.Encoder)new JIS_X_0212().newEncoder(); |
| |
| private final Surrogate.Parser sgp = new Surrogate.Parser(); |
| |
| |
| private final SingleByte.Encoder enc0201; |
| private final DoubleByte.Encoder enc0208; |
| private final DoubleByte.Encoder enc0212; |
| |
| protected Encoder(Charset cs) { |
| this(cs, 3.0f, 3.0f, ENC0201, ENC0208, ENC0212); |
| } |
| |
| protected Encoder(Charset cs, float avgBpc, float maxBpc, |
| SingleByte.Encoder enc0201, |
| DoubleByte.Encoder enc0208, |
| DoubleByte.Encoder enc0212) { |
| super(cs, avgBpc, maxBpc); |
| this.enc0201 = enc0201; |
| this.enc0208 = enc0208; |
| this.enc0212 = enc0212; |
| } |
| |
| public boolean canEncode(char c) { |
| byte[] encodedBytes = new byte[3]; |
| return encodeSingle(c, encodedBytes) != 0 || |
| encodeDouble(c) != UNMAPPABLE_ENCODING; |
| } |
| |
| protected int encodeSingle(char inputChar, byte[] outputByte) { |
| int b = enc0201.encode(inputChar); |
| if (b == UNMAPPABLE_ENCODING) |
| return 0; |
| if (b >= 0 && b < 128) { |
| outputByte[0] = (byte)b; |
| return 1; |
| } |
| outputByte[0] = (byte)0x8e; |
| outputByte[1] = (byte)b; |
| return 2; |
| } |
| |
| protected int encodeDouble(char ch) { |
| int b = enc0208.encodeChar(ch); |
| if (b != UNMAPPABLE_ENCODING) |
| return b + 0x8080; |
| if (enc0212 != null) { |
| b = enc0212.encodeChar(ch); |
| if (b != UNMAPPABLE_ENCODING) |
| b += 0x8F8080; |
| } |
| return b; |
| } |
| |
| 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); |
| |
| int outputSize = 0; |
| byte[] outputByte; |
| int inputSize = 0; // Size of input |
| byte[] tmpBuf = new byte[3]; |
| |
| try { |
| while (sp < sl) { |
| outputByte = tmpBuf; |
| char c = sa[sp]; |
| if (Character.isSurrogate(c)) { |
| if (sgp.parse(c, sa, sp, sl) < 0) |
| return sgp.error(); |
| return sgp.unmappableResult(); |
| } |
| outputSize = encodeSingle(c, outputByte); |
| if (outputSize == 0) { // DoubleByte |
| int ncode = encodeDouble(c); |
| if (ncode != UNMAPPABLE_ENCODING) { |
| if ((ncode & 0xFF0000) == 0) { |
| outputByte[0] = (byte) ((ncode & 0xff00) >> 8); |
| outputByte[1] = (byte) (ncode & 0xff); |
| outputSize = 2; |
| } else { |
| outputByte[0] = (byte) 0x8f; |
| outputByte[1] = (byte) ((ncode & 0xff00) >> 8); |
| outputByte[2] = (byte) (ncode & 0xff); |
| outputSize = 3; |
| } |
| } else { |
| return CoderResult.unmappableForLength(1); |
| } |
| } |
| if (dl - dp < outputSize) |
| return CoderResult.OVERFLOW; |
| // Put the byte in the output buffer |
| for (int i = 0; i < outputSize; i++) { |
| da[dp++] = outputByte[i]; |
| } |
| sp++; |
| } |
| return CoderResult.UNDERFLOW; |
| } finally { |
| src.position(sp - src.arrayOffset()); |
| dst.position(dp - dst.arrayOffset()); |
| } |
| } |
| |
| private CoderResult encodeBufferLoop(CharBuffer src, |
| ByteBuffer dst) |
| { |
| int outputSize = 0; |
| byte[] outputByte; |
| int inputSize = 0; // Size of input |
| byte[] tmpBuf = new byte[3]; |
| |
| int mark = src.position(); |
| |
| try { |
| while (src.hasRemaining()) { |
| outputByte = tmpBuf; |
| char c = src.get(); |
| if (Character.isSurrogate(c)) { |
| if (sgp.parse(c, src) < 0) |
| return sgp.error(); |
| return sgp.unmappableResult(); |
| } |
| outputSize = encodeSingle(c, outputByte); |
| if (outputSize == 0) { // DoubleByte |
| int ncode = encodeDouble(c); |
| if (ncode != UNMAPPABLE_ENCODING) { |
| if ((ncode & 0xFF0000) == 0) { |
| outputByte[0] = (byte) ((ncode & 0xff00) >> 8); |
| outputByte[1] = (byte) (ncode & 0xff); |
| outputSize = 2; |
| } else { |
| outputByte[0] = (byte) 0x8f; |
| outputByte[1] = (byte) ((ncode & 0xff00) >> 8); |
| outputByte[2] = (byte) (ncode & 0xff); |
| outputSize = 3; |
| } |
| } else { |
| return CoderResult.unmappableForLength(1); |
| } |
| } |
| if (dst.remaining() < outputSize) |
| return CoderResult.OVERFLOW; |
| // Put the byte in the output buffer |
| for (int i = 0; i < outputSize; i++) { |
| dst.put(outputByte[i]); |
| } |
| 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); |
| } |
| } |
| } |
