author | sherman |
Tue, 19 May 2009 15:25:29 -0700 | |
changeset 2913 | 39a9cc073b84 |
parent 2 | 90ce3da70b43 |
child 3623 | 4e71b4e83158 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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* Copyright 2002-2006 Sun Microsystems, Inc. All Rights Reserved. |
|
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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||
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/* |
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*/ |
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29 |
package sun.nio.cs.ext; |
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30 |
||
31 |
import java.nio.ByteBuffer; |
|
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import java.nio.CharBuffer; |
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33 |
import java.nio.charset.Charset; |
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34 |
import java.nio.charset.CharsetDecoder; |
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35 |
import java.nio.charset.CharsetEncoder; |
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36 |
import java.nio.charset.CoderResult; |
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37 |
import sun.nio.cs.Surrogate; |
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38 |
||
39 |
abstract class ISO2022 |
|
40 |
extends Charset |
|
41 |
{ |
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42 |
||
43 |
private static final byte ISO_ESC = 0x1b; |
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44 |
private static final byte ISO_SI = 0x0f; |
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45 |
private static final byte ISO_SO = 0x0e; |
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46 |
private static final byte ISO_SS2_7 = 0x4e; |
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47 |
private static final byte ISO_SS3_7 = 0x4f; |
|
48 |
private static final byte MSB = (byte)0x80; |
|
49 |
private static final char REPLACE_CHAR = '\uFFFD'; |
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50 |
private static final byte minDesignatorLength = 3; |
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51 |
||
52 |
public ISO2022(String csname, String[] aliases) { |
|
53 |
super(csname, aliases); |
|
54 |
} |
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55 |
||
56 |
public CharsetDecoder newDecoder() { |
|
57 |
return new Decoder(this); |
|
58 |
} |
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59 |
||
60 |
public CharsetEncoder newEncoder() { |
|
61 |
return new Encoder(this); |
|
62 |
} |
|
63 |
||
64 |
protected static class Decoder extends CharsetDecoder { |
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65 |
||
66 |
// Value to be filled by subclass |
|
67 |
protected byte SODesig[][]; |
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68 |
protected byte SS2Desig[][] = null; |
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69 |
protected byte SS3Desig[][] = null; |
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70 |
||
71 |
protected CharsetDecoder SODecoder[]; |
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protected CharsetDecoder SS2Decoder[] = null; |
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protected CharsetDecoder SS3Decoder[] = null; |
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74 |
||
75 |
private static final byte SOFlag = 0; |
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private static final byte SS2Flag = 1; |
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private static final byte SS3Flag = 2; |
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78 |
||
79 |
private int curSODes, curSS2Des, curSS3Des; |
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private boolean shiftout; |
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private CharsetDecoder tmpDecoder[]; |
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82 |
||
83 |
protected Decoder(Charset cs) { |
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super(cs, 1.0f, 1.0f); |
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85 |
} |
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86 |
||
87 |
protected void implReset() { |
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curSODes = 0; |
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curSS2Des = 0; |
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90 |
curSS3Des = 0; |
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shiftout = false; |
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92 |
} |
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93 |
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94 |
private char decode(byte byte1, byte byte2, byte shiftFlag) |
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95 |
{ |
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byte1 |= MSB; |
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byte2 |= MSB; |
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98 |
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99 |
byte[] tmpByte = { byte1,byte2 }; |
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char[] tmpChar = new char[1]; |
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int i = 0, |
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tmpIndex = 0; |
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103 |
||
104 |
switch(shiftFlag) { |
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105 |
case SOFlag: |
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tmpIndex = curSODes; |
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tmpDecoder = (CharsetDecoder [])SODecoder; |
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108 |
break; |
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case SS2Flag: |
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tmpIndex = curSS2Des; |
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tmpDecoder = (CharsetDecoder [])SS2Decoder; |
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break; |
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113 |
case SS3Flag: |
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tmpIndex = curSS3Des; |
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tmpDecoder = (CharsetDecoder [])SS3Decoder; |
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116 |
break; |
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117 |
} |
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118 |
||
119 |
if (tmpDecoder != null) { |
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120 |
for(i = 0; i < tmpDecoder.length; i++) { |
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if(tmpIndex == i) { |
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122 |
try { |
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123 |
ByteBuffer bb = ByteBuffer.wrap(tmpByte,0,2); |
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124 |
CharBuffer cc = CharBuffer.wrap(tmpChar,0,1); |
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125 |
tmpDecoder[i].decode(bb, cc, true); |
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126 |
cc.flip(); |
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127 |
return cc.get(); |
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128 |
} catch (Exception e) {} |
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129 |
} |
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130 |
} |
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131 |
} |
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132 |
return REPLACE_CHAR; |
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133 |
} |
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134 |
||
135 |
private int findDesig(byte[] in, int sp, int sl, byte[][] desigs) { |
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136 |
if (desigs == null) return -1; |
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137 |
int i = 0; |
|
138 |
while (i < desigs.length) { |
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139 |
if (desigs[i] != null && sl - sp >= desigs[i].length) { |
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140 |
int j = 0; |
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141 |
while (j < desigs[i].length && in[sp+j] == desigs[i][j]) { j++; } |
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142 |
if (j == desigs[i].length) |
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143 |
return i; |
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144 |
} |
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145 |
i++; |
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146 |
} |
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147 |
return -1; |
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148 |
} |
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149 |
||
150 |
private int findDesigBuf(ByteBuffer in, byte[][] desigs) { |
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151 |
if (desigs == null) return -1; |
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152 |
int i = 0; |
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153 |
while (i < desigs.length) { |
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154 |
if (desigs[i] != null && in.remaining() >= desigs[i].length) { |
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155 |
int j = 0; |
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156 |
in.mark(); |
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157 |
while (j < desigs[i].length && in.get() == desigs[i][j]) { j++; } |
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158 |
if (j == desigs[i].length) |
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159 |
return i; |
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160 |
in.reset(); |
|
161 |
} |
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162 |
i++; |
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163 |
} |
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164 |
return -1; |
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165 |
} |
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166 |
||
167 |
private CoderResult decodeArrayLoop(ByteBuffer src, |
|
168 |
CharBuffer dst) |
|
169 |
{ |
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170 |
byte[] sa = src.array(); |
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171 |
int sp = src.arrayOffset() + src.position(); |
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172 |
int sl = src.arrayOffset() + src.limit(); |
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173 |
assert (sp <= sl); |
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sp = (sp <= sl ? sp : sl); |
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175 |
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char[] da = dst.array(); |
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177 |
int dp = dst.arrayOffset() + dst.position(); |
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178 |
int dl = dst.arrayOffset() + dst.limit(); |
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assert (dp <= dl); |
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180 |
dp = (dp <= dl ? dp : dl); |
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181 |
||
182 |
int b1 = 0, b2 = 0, b3 = 0; |
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183 |
||
184 |
try { |
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185 |
while (sp < sl) { |
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b1 = sa[sp] & 0xff; |
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int inputSize = 1; |
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188 |
switch (b1) { |
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189 |
case ISO_SO: |
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190 |
shiftout = true; |
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191 |
inputSize = 1; |
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192 |
break; |
|
193 |
case ISO_SI: |
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194 |
shiftout = false; |
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inputSize = 1; |
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196 |
break; |
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197 |
case ISO_ESC: |
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198 |
if (sl - sp - 1 < minDesignatorLength) |
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199 |
return CoderResult.UNDERFLOW; |
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200 |
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201 |
int desig = findDesig(sa, sp + 1, sl, SODesig); |
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202 |
if (desig != -1) { |
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203 |
curSODes = desig; |
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204 |
inputSize = SODesig[desig].length + 1; |
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break; |
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206 |
} |
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207 |
desig = findDesig(sa, sp + 1, sl, SS2Desig); |
|
208 |
if (desig != -1) { |
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209 |
curSS2Des = desig; |
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210 |
inputSize = SS2Desig[desig].length + 1; |
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211 |
break; |
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212 |
} |
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213 |
desig = findDesig(sa, sp + 1, sl, SS3Desig); |
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214 |
if (desig != -1) { |
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215 |
curSS3Des = desig; |
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216 |
inputSize = SS3Desig[desig].length + 1; |
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217 |
break; |
|
218 |
} |
|
219 |
if (sl - sp < 2) |
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return CoderResult.UNDERFLOW; |
|
221 |
b1 = sa[sp + 1]; |
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222 |
switch(b1) { |
|
223 |
case ISO_SS2_7: |
|
224 |
if (sl - sp < 4) |
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225 |
return CoderResult.UNDERFLOW; |
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226 |
b2 = sa[sp +2]; |
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227 |
b3 = sa[sp +3]; |
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228 |
if (dl - dp <1) |
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229 |
return CoderResult.OVERFLOW; |
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230 |
da[dp] = decode((byte)b2, |
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231 |
(byte)b3, |
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SS2Flag); |
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233 |
dp++; |
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234 |
inputSize = 4; |
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235 |
break; |
|
236 |
case ISO_SS3_7: |
|
237 |
if (sl - sp < 4) |
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238 |
return CoderResult.UNDERFLOW; |
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239 |
b2 = sa[sp + 2]; |
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b3 = sa[sp + 3]; |
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241 |
if (dl - dp <1) |
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return CoderResult.OVERFLOW; |
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243 |
da[dp] = decode((byte)b2, |
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(byte)b3, |
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SS3Flag); |
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dp++; |
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247 |
inputSize = 4; |
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248 |
break; |
|
249 |
default: |
|
250 |
return CoderResult.malformedForLength(2); |
|
251 |
} |
|
252 |
break; |
|
253 |
default: |
|
254 |
if (dl - dp < 1) |
|
255 |
return CoderResult.OVERFLOW; |
|
256 |
if (!shiftout) { |
|
257 |
da[dp++]=(char)(sa[sp] & 0xff); |
|
258 |
} else { |
|
259 |
if (dl - dp < 1) |
|
260 |
return CoderResult.OVERFLOW; |
|
261 |
if (sl - sp < 2) |
|
262 |
return CoderResult.UNDERFLOW; |
|
263 |
b2 = sa[sp+1] & 0xff; |
|
264 |
da[dp++] = decode((byte)b1, |
|
265 |
(byte)b2, |
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SOFlag); |
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267 |
inputSize = 2; |
|
268 |
} |
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269 |
break; |
|
270 |
} |
|
271 |
sp += inputSize; |
|
272 |
} |
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273 |
return CoderResult.UNDERFLOW; |
|
274 |
} finally { |
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275 |
src.position(sp - src.arrayOffset()); |
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276 |
dst.position(dp - dst.arrayOffset()); |
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277 |
} |
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278 |
} |
|
279 |
||
280 |
private CoderResult decodeBufferLoop(ByteBuffer src, |
|
281 |
CharBuffer dst) |
|
282 |
{ |
|
283 |
int mark = src.position(); |
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284 |
int b1 = 0, b2 = 0, b3 = 0; |
|
285 |
||
286 |
try { |
|
287 |
while (src.hasRemaining()) { |
|
288 |
b1 = src.get(); |
|
289 |
int inputSize = 1; |
|
290 |
switch (b1) { |
|
291 |
case ISO_SO: |
|
292 |
shiftout = true; |
|
293 |
break; |
|
294 |
case ISO_SI: |
|
295 |
shiftout = false; |
|
296 |
break; |
|
297 |
case ISO_ESC: |
|
298 |
if (src.remaining() < minDesignatorLength) |
|
299 |
return CoderResult.UNDERFLOW; |
|
300 |
||
301 |
int desig = findDesigBuf(src, SODesig); |
|
302 |
if (desig != -1) { |
|
303 |
curSODes = desig; |
|
304 |
inputSize = SODesig[desig].length + 1; |
|
305 |
break; |
|
306 |
} |
|
307 |
desig = findDesigBuf(src, SS2Desig); |
|
308 |
if (desig != -1) { |
|
309 |
curSS2Des = desig; |
|
310 |
inputSize = SS2Desig[desig].length + 1; |
|
311 |
break; |
|
312 |
} |
|
313 |
desig = findDesigBuf(src, SS3Desig); |
|
314 |
if (desig != -1) { |
|
315 |
curSS3Des = desig; |
|
316 |
inputSize = SS3Desig[desig].length + 1; |
|
317 |
break; |
|
318 |
} |
|
319 |
||
320 |
if (src.remaining() < 1) |
|
321 |
return CoderResult.UNDERFLOW; |
|
322 |
b1 = src.get(); |
|
323 |
switch(b1) { |
|
324 |
case ISO_SS2_7: |
|
325 |
if (src.remaining() < 2) |
|
326 |
return CoderResult.UNDERFLOW; |
|
327 |
b2 = src.get(); |
|
328 |
b3 = src.get(); |
|
329 |
if (dst.remaining() < 1) |
|
330 |
return CoderResult.OVERFLOW; |
|
331 |
dst.put(decode((byte)b2, |
|
332 |
(byte)b3, |
|
333 |
SS2Flag)); |
|
334 |
inputSize = 4; |
|
335 |
break; |
|
336 |
case ISO_SS3_7: |
|
337 |
if (src.remaining() < 2) |
|
338 |
return CoderResult.UNDERFLOW; |
|
339 |
b2 = src.get(); |
|
340 |
b3 = src.get(); |
|
341 |
if (dst.remaining() < 1) |
|
342 |
return CoderResult.OVERFLOW; |
|
343 |
dst.put(decode((byte)b2, |
|
344 |
(byte)b3, |
|
345 |
SS3Flag)); |
|
346 |
inputSize = 4; |
|
347 |
break; |
|
348 |
default: |
|
349 |
return CoderResult.malformedForLength(2); |
|
350 |
} |
|
351 |
break; |
|
352 |
default: |
|
353 |
if (dst.remaining() < 1) |
|
354 |
return CoderResult.OVERFLOW; |
|
355 |
if (!shiftout) { |
|
356 |
dst.put((char)(b1 & 0xff)); |
|
357 |
} else { |
|
358 |
if (dst.remaining() < 1) |
|
359 |
return CoderResult.OVERFLOW; |
|
360 |
if (src.remaining() < 1) |
|
361 |
return CoderResult.UNDERFLOW; |
|
362 |
b2 = src.get() & 0xff; |
|
363 |
dst.put(decode((byte)b1, |
|
364 |
(byte)b2, |
|
365 |
SOFlag)); |
|
366 |
inputSize = 2; |
|
367 |
} |
|
368 |
break; |
|
369 |
} |
|
370 |
mark += inputSize; |
|
371 |
} |
|
372 |
return CoderResult.UNDERFLOW; |
|
373 |
} catch (Exception e) { e.printStackTrace(); return CoderResult.OVERFLOW; } |
|
374 |
finally { |
|
375 |
src.position(mark); |
|
376 |
} |
|
377 |
} |
|
378 |
||
379 |
protected CoderResult decodeLoop(ByteBuffer src, |
|
380 |
CharBuffer dst) |
|
381 |
{ |
|
382 |
if (src.hasArray() && dst.hasArray()) |
|
383 |
return decodeArrayLoop(src, dst); |
|
384 |
else |
|
385 |
return decodeBufferLoop(src, dst); |
|
386 |
} |
|
387 |
} |
|
388 |
||
389 |
protected static class Encoder extends CharsetEncoder { |
|
390 |
private final Surrogate.Parser sgp = new Surrogate.Parser(); |
|
391 |
private final byte SS2 = (byte)0x8e; |
|
2913
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
392 |
private final byte PLANE2 = (byte)0xA2; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
393 |
private final byte PLANE3 = (byte)0xA3; |
2 | 394 |
private final byte MSB = (byte)0x80; |
395 |
||
396 |
protected final byte maximumDesignatorLength = 4; |
|
397 |
||
398 |
protected String SODesig, |
|
399 |
SS2Desig = null, |
|
400 |
SS3Desig = null; |
|
401 |
||
402 |
protected CharsetEncoder ISOEncoder; |
|
403 |
||
404 |
private boolean shiftout = false; |
|
405 |
private boolean SODesDefined = false; |
|
406 |
private boolean SS2DesDefined = false; |
|
407 |
private boolean SS3DesDefined = false; |
|
408 |
||
409 |
private boolean newshiftout = false; |
|
410 |
private boolean newSODesDefined = false; |
|
411 |
private boolean newSS2DesDefined = false; |
|
412 |
private boolean newSS3DesDefined = false; |
|
413 |
||
414 |
protected Encoder(Charset cs) { |
|
415 |
super(cs, 4.0f, 8.0f); |
|
416 |
} |
|
417 |
||
418 |
public boolean canEncode(char c) { |
|
419 |
return (ISOEncoder.canEncode(c)); |
|
420 |
} |
|
421 |
||
422 |
protected void implReset() { |
|
423 |
shiftout = false; |
|
424 |
SODesDefined = false; |
|
425 |
SS2DesDefined = false; |
|
426 |
SS3DesDefined = false; |
|
427 |
} |
|
428 |
||
429 |
private int unicodeToNative(char unicode, byte ebyte[]) |
|
430 |
{ |
|
431 |
int index = 0; |
|
432 |
byte tmpByte[]; |
|
433 |
char convChar[] = {unicode}; |
|
434 |
byte convByte[] = new byte[4]; |
|
435 |
int converted; |
|
436 |
||
437 |
try{ |
|
438 |
CharBuffer cc = CharBuffer.wrap(convChar); |
|
439 |
ByteBuffer bb = ByteBuffer.allocate(4); |
|
440 |
ISOEncoder.encode(cc, bb, true); |
|
441 |
bb.flip(); |
|
442 |
converted = bb.remaining(); |
|
443 |
bb.get(convByte,0,converted); |
|
444 |
} catch(Exception e) { |
|
445 |
return -1; |
|
446 |
} |
|
447 |
||
448 |
if (converted == 2) { |
|
449 |
if (!SODesDefined) { |
|
450 |
newSODesDefined = true; |
|
451 |
ebyte[0] = ISO_ESC; |
|
452 |
tmpByte = SODesig.getBytes(); |
|
453 |
System.arraycopy(tmpByte,0,ebyte,1,tmpByte.length); |
|
454 |
index = tmpByte.length+1; |
|
455 |
} |
|
456 |
if (!shiftout) { |
|
457 |
newshiftout = true; |
|
458 |
ebyte[index++] = ISO_SO; |
|
459 |
} |
|
460 |
ebyte[index++] = (byte)(convByte[0] & 0x7f); |
|
461 |
ebyte[index++] = (byte)(convByte[1] & 0x7f); |
|
462 |
} else { |
|
2913
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
463 |
if(convByte[0] == SS2) { |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
464 |
if (convByte[1] == PLANE2) { |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
465 |
if (!SS2DesDefined) { |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
466 |
newSS2DesDefined = true; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
467 |
ebyte[0] = ISO_ESC; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
468 |
tmpByte = SS2Desig.getBytes(); |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
469 |
System.arraycopy(tmpByte, 0, ebyte, 1, tmpByte.length); |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
470 |
index = tmpByte.length+1; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
471 |
} |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
472 |
ebyte[index++] = ISO_ESC; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
473 |
ebyte[index++] = ISO_SS2_7; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
474 |
ebyte[index++] = (byte)(convByte[2] & 0x7f); |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
475 |
ebyte[index++] = (byte)(convByte[3] & 0x7f); |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
476 |
} else if (convByte[1] == PLANE3) { |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
477 |
if(!SS3DesDefined){ |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
478 |
newSS3DesDefined = true; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
479 |
ebyte[0] = ISO_ESC; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
480 |
tmpByte = SS3Desig.getBytes(); |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
481 |
System.arraycopy(tmpByte, 0, ebyte, 1, tmpByte.length); |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
482 |
index = tmpByte.length+1; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
483 |
} |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
484 |
ebyte[index++] = ISO_ESC; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
485 |
ebyte[index++] = ISO_SS3_7; |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
486 |
ebyte[index++] = (byte)(convByte[2] & 0x7f); |
39a9cc073b84
6831794: charset EUC_TW is 12.6% of the total size of charsets.jar
sherman
parents:
2
diff
changeset
|
487 |
ebyte[index++] = (byte)(convByte[3] & 0x7f); |
2 | 488 |
} |
489 |
} |
|
490 |
} |
|
491 |
return index; |
|
492 |
} |
|
493 |
||
494 |
private CoderResult encodeArrayLoop(CharBuffer src, |
|
495 |
ByteBuffer dst) |
|
496 |
{ |
|
497 |
char[] sa = src.array(); |
|
498 |
int sp = src.arrayOffset() + src.position(); |
|
499 |
int sl = src.arrayOffset() + src.limit(); |
|
500 |
assert (sp <= sl); |
|
501 |
sp = (sp <= sl ? sp : sl); |
|
502 |
byte[] da = dst.array(); |
|
503 |
int dp = dst.arrayOffset() + dst.position(); |
|
504 |
int dl = dst.arrayOffset() + dst.limit(); |
|
505 |
assert (dp <= dl); |
|
506 |
dp = (dp <= dl ? dp : dl); |
|
507 |
||
508 |
int outputSize = 0; |
|
509 |
byte[] outputByte = new byte[8]; |
|
510 |
newshiftout = shiftout; |
|
511 |
newSODesDefined = SODesDefined; |
|
512 |
newSS2DesDefined = SS2DesDefined; |
|
513 |
newSS3DesDefined = SS3DesDefined; |
|
514 |
||
515 |
try { |
|
516 |
while (sp < sl) { |
|
517 |
char c = sa[sp]; |
|
518 |
if (Surrogate.is(c)) { |
|
519 |
if (sgp.parse(c, sa, sp, sl) < 0) |
|
520 |
return sgp.error(); |
|
521 |
return sgp.unmappableResult(); |
|
522 |
} |
|
523 |
||
524 |
if (c < 0x80) { // ASCII |
|
525 |
if (shiftout){ |
|
526 |
newshiftout = false; |
|
527 |
outputSize = 2; |
|
528 |
outputByte[0] = ISO_SI; |
|
529 |
outputByte[1] = (byte)(c & 0x7f); |
|
530 |
} else { |
|
531 |
outputSize = 1; |
|
532 |
outputByte[0] = (byte)(c & 0x7f); |
|
533 |
} |
|
534 |
if(sa[sp] == '\n'){ |
|
535 |
newSODesDefined = false; |
|
536 |
newSS2DesDefined = false; |
|
537 |
newSS3DesDefined = false; |
|
538 |
} |
|
539 |
} else { |
|
540 |
outputSize = unicodeToNative(c, outputByte); |
|
541 |
if (outputSize == 0) { |
|
542 |
return CoderResult.unmappableForLength(1); |
|
543 |
} |
|
544 |
} |
|
545 |
if (dl - dp < outputSize) |
|
546 |
return CoderResult.OVERFLOW; |
|
547 |
||
548 |
for (int i = 0; i < outputSize; i++) |
|
549 |
da[dp++] = outputByte[i]; |
|
550 |
sp++; |
|
551 |
shiftout = newshiftout; |
|
552 |
SODesDefined = newSODesDefined; |
|
553 |
SS2DesDefined = newSS2DesDefined; |
|
554 |
SS3DesDefined = newSS3DesDefined; |
|
555 |
} |
|
556 |
return CoderResult.UNDERFLOW; |
|
557 |
} finally { |
|
558 |
src.position(sp - src.arrayOffset()); |
|
559 |
dst.position(dp - dst.arrayOffset()); |
|
560 |
} |
|
561 |
} |
|
562 |
||
563 |
||
564 |
private CoderResult encodeBufferLoop(CharBuffer src, |
|
565 |
ByteBuffer dst) |
|
566 |
{ |
|
567 |
int outputSize = 0; |
|
568 |
byte[] outputByte = new byte[8]; |
|
569 |
int inputSize = 0; // Size of input |
|
570 |
newshiftout = shiftout; |
|
571 |
newSODesDefined = SODesDefined; |
|
572 |
newSS2DesDefined = SS2DesDefined; |
|
573 |
newSS3DesDefined = SS3DesDefined; |
|
574 |
int mark = src.position(); |
|
575 |
||
576 |
try { |
|
577 |
while (src.hasRemaining()) { |
|
578 |
char inputChar = src.get(); |
|
579 |
if (Surrogate.is(inputChar)) { |
|
580 |
if (sgp.parse(inputChar, src) < 0) |
|
581 |
return sgp.error(); |
|
582 |
return sgp.unmappableResult(); |
|
583 |
} |
|
584 |
if (inputChar < 0x80) { // ASCII |
|
585 |
if (shiftout){ |
|
586 |
newshiftout = false; |
|
587 |
outputSize = 2; |
|
588 |
outputByte[0] = ISO_SI; |
|
589 |
outputByte[1] = (byte)(inputChar & 0x7f); |
|
590 |
} else { |
|
591 |
outputSize = 1; |
|
592 |
outputByte[0] = (byte)(inputChar & 0x7f); |
|
593 |
} |
|
594 |
if(inputChar == '\n'){ |
|
595 |
newSODesDefined = false; |
|
596 |
newSS2DesDefined = false; |
|
597 |
newSS3DesDefined = false; |
|
598 |
} |
|
599 |
} else { |
|
600 |
outputSize = unicodeToNative(inputChar, outputByte); |
|
601 |
if (outputSize == 0) { |
|
602 |
return CoderResult.unmappableForLength(1); |
|
603 |
} |
|
604 |
} |
|
605 |
||
606 |
if (dst.remaining() < outputSize) |
|
607 |
return CoderResult.OVERFLOW; |
|
608 |
for (int i = 0; i < outputSize; i++) |
|
609 |
dst.put(outputByte[i]); |
|
610 |
mark++; |
|
611 |
shiftout = newshiftout; |
|
612 |
SODesDefined = newSODesDefined; |
|
613 |
SS2DesDefined = newSS2DesDefined; |
|
614 |
SS3DesDefined = newSS3DesDefined; |
|
615 |
} |
|
616 |
return CoderResult.UNDERFLOW; |
|
617 |
} finally { |
|
618 |
src.position(mark); |
|
619 |
} |
|
620 |
} |
|
621 |
||
622 |
protected CoderResult encodeLoop(CharBuffer src, |
|
623 |
ByteBuffer dst) |
|
624 |
{ |
|
625 |
if (src.hasArray() && dst.hasArray()) |
|
626 |
return encodeArrayLoop(src, dst); |
|
627 |
else |
|
628 |
return encodeBufferLoop(src, dst); |
|
629 |
} |
|
630 |
} |
|
631 |
} |