1 /* |
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2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package sun.io; |
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27 |
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28 import sun.nio.cs.ext.JIS_X_0208_Solaris_Decoder; |
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29 import sun.nio.cs.ext.JIS_X_0212_Solaris_Decoder; |
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30 /** |
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31 * |
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32 * @author Limin Shi |
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33 * @author Ian Little |
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34 * |
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35 * EUC_JP variant converter for Solaris with vendor defined chars |
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36 * added (4765370) |
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37 */ |
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38 |
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39 |
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40 public class ByteToCharEUC_JP_Solaris extends ByteToCharEUC_JP { |
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41 private byte savedSecond = 0; |
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42 |
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43 ByteToCharJIS0201 bcJIS0201 = new ByteToCharJIS0201(); |
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44 ByteToCharJIS0212_Solaris bcJIS0212 = new ByteToCharJIS0212_Solaris(); |
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45 |
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46 short[] j0208Index1 = JIS_X_0208_Solaris_Decoder.getIndex1(); |
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47 String[] j0208Index2 = JIS_X_0208_Solaris_Decoder.getIndex2(); |
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48 ByteToCharJIS0212_Solaris j0212Decoder = new ByteToCharJIS0212_Solaris(); |
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49 |
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50 public ByteToCharEUC_JP_Solaris() { |
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51 super(); |
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52 start = 0xA1; |
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53 end = 0xFE; |
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54 savedSecond = 0; |
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55 } |
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56 |
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57 public int flush(char[] output, int outStart, int outEnd) |
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58 throws MalformedInputException |
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59 { |
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60 if (savedSecond != 0) { |
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61 reset(); |
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62 throw new MalformedInputException(); |
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63 } |
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64 reset(); |
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65 return 0; |
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66 } |
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67 |
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68 /** |
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69 * Resets the converter. |
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70 * Call this method to reset the converter to its initial state |
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71 */ |
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72 public void reset() { |
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73 super.reset(); |
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74 savedSecond = 0; |
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75 } |
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76 |
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77 public String getCharacterEncoding() { |
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78 return "eucJP-open"; |
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79 } |
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80 |
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81 protected char convSingleByte(int b) { |
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82 if (b < 0 || b > 0x7F) |
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83 return REPLACE_CHAR; |
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84 return bcJIS0201.getUnicode(b); |
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85 } |
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86 |
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87 protected char getUnicode(int byte1, int byte2) { |
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88 if (byte1 == 0x8E) { |
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89 return bcJIS0201.getUnicode(byte2 - 256); |
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90 } |
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91 // Fix for bug 4121358 - similar fix for bug 4117820 put |
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92 // into ByteToCharDoubleByte.getUnicode() |
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93 if (((byte1 < 0) || (byte1 > j0208Index1.length)) |
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94 || ((byte2 < start) || (byte2 > end))) |
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95 return REPLACE_CHAR; |
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96 |
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97 char result = super.getUnicode(byte1, byte2); |
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98 if (result != '\uFFFD') { |
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99 return result; |
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100 } else { |
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101 int n = (j0208Index1[byte1 - 0x80] & 0xf) * (end - start + 1) |
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102 + (byte2 - start); |
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103 return j0208Index2[j0208Index1[byte1 - 0x80] >> 4].charAt(n); |
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104 } |
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105 } |
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106 |
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107 protected char decode0212(int byte1, int byte2) { |
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108 return j0212Decoder.getUnicode(byte1, byte2); |
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109 } |
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110 |
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111 /** |
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112 * Converts sequences of bytes to characters. |
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113 * Conversions that result in Exceptions can be restarted by calling |
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114 * convert again, with appropriately modified parameters. |
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115 * @return the characters written to output. |
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116 * @param input byte array containing text in Double/single Byte |
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117 * @param inStart offset in input array |
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118 * @param inEnd offset of last byte to be converted |
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119 * @param output character array to receive conversion result |
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120 * @param outStart starting offset |
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121 * @param outEnd offset of last byte to be written to |
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122 * @throw UnsupportedCharacterException for any bytes |
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123 * that cannot be converted to the external character set. |
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124 */ |
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125 public int convert(byte[] input, int inOff, int inEnd, |
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126 char[] output, int outOff, int outEnd) |
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127 throws UnknownCharacterException, |
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128 ConversionBufferFullException |
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129 { |
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130 char outputChar = REPLACE_CHAR; |
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131 int inputSize = 0; // Size of input |
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132 |
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133 // Record beginning offsets |
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134 charOff = outOff; |
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135 byteOff = inOff; |
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136 |
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137 // Loop until we hit the end of the input |
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138 while (byteOff < inEnd) { |
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139 int byte1, byte2; |
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140 |
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141 if (savedByte == 0) { |
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142 byte1 = input[byteOff]; |
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143 inputSize = 1; |
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144 } else { |
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145 byte1 = savedByte; |
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146 savedByte = 0; |
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147 inputSize = 0; |
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148 } |
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149 |
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150 outputChar = convSingleByte(byte1); |
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151 |
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152 if (outputChar == REPLACE_CHAR) { // Multibyte char |
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153 if ((byte1 & 0xff) == 0x8F) { // JIS0212 |
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154 if (byteOff + inputSize + 1 >= inEnd) { |
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155 // split in the middle of a character |
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156 // save the first 2 bytes for next time around |
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157 savedByte = (byte) byte1; |
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158 byteOff += inputSize; |
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159 if (byteOff < inEnd) { |
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160 savedSecond = input[byteOff]; |
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161 byteOff++; |
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162 } |
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163 break; |
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164 } |
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165 if (savedSecond != 0) { |
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166 byte1 = savedSecond & 0xff; |
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167 savedSecond = 0; |
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168 } else { |
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169 byte1 = input[byteOff + inputSize] & 0xff; |
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170 inputSize++; |
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171 } |
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172 byte2 = input[byteOff + inputSize] & 0xff; |
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173 inputSize++; |
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174 outputChar = bcJIS0212.getUnicode(byte1-0x80, byte2-0x80); |
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175 } else { // JIS0208 |
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176 if (byteOff + inputSize >= inEnd) { |
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177 // split in the middle of a character |
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178 // save the first byte for next time around |
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179 savedByte = (byte) byte1; |
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180 byteOff += inputSize; |
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181 break; |
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182 } |
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183 byte1 &= 0xff; |
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184 byte2 = input[byteOff + inputSize] & 0xff; |
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185 inputSize++; |
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186 outputChar = getUnicode(byte1, byte2); |
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187 } |
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188 } |
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189 |
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190 if (outputChar == REPLACE_CHAR) { |
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191 if (subMode) |
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192 outputChar = subChars[0]; |
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193 else { |
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194 badInputLength = inputSize; |
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195 throw new UnknownCharacterException(); |
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196 } |
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197 } |
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198 |
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199 if (charOff >= outEnd) |
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200 throw new ConversionBufferFullException(); |
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201 |
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202 output[charOff++] = outputChar; |
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203 byteOff += inputSize; |
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204 } |
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205 |
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206 return charOff - outOff; |
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207 } |
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208 |
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209 } |
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