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1 /* |
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2 * Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: This file is a source code file for a charconv plug-in. |
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15 |
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16 * This plug-in supports EUC-JP with direct mapped pictograph. |
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17 |
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18 * |
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19 */ |
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20 |
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21 |
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22 |
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23 |
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24 |
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25 |
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26 // INCLUDE FILES |
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27 |
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28 #include <e32std.h> |
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29 |
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30 #include <charconv.h> |
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31 |
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32 |
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33 |
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34 #ifndef EKA2 |
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35 |
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36 #include <CONVPLUG.H> |
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37 |
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38 #else |
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39 |
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40 #include <convgeneratedcpp.h> |
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41 |
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42 #include <ecom/implementationproxy.h> |
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43 |
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44 #include "charactersetconverter.h" |
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45 |
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46 #endif // !EKA2 |
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47 |
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48 |
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49 |
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50 #include <convutils.h> |
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51 |
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52 #include <jisx0201.h> |
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53 |
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54 #include <jisx0208.h> |
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55 |
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56 #include <jisx0212.h> |
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57 |
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58 #include <CnvShiftJisDirectmap.h> |
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59 |
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60 // LOCAL CONSTANTS AND MACROS |
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61 |
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62 const TUint KSingleShift2=0x8e; |
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63 |
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64 const TUint KSingleShift3=0x8f; |
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65 |
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66 const TUint KFirstByteRangeFirstBlockStart = 0xF5; |
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67 |
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68 const TUint KFirstByteRangeFirstBlockEnd = 0xFE; |
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69 |
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70 const TUint KSecondByteRangeSecondBlockStart = 0xA1; |
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71 |
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72 const TUint KSecondByteRangeSecondBlockEnd = 0xFE; |
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73 |
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74 const TUint KPictographStartFirstByte = 0xF0; |
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75 |
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76 const TUint KPictographStartSecondByte = 0x40; |
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77 |
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78 const TUint KEUCJPSecondBlockStart = 0xF5; |
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79 |
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80 const TUint KEUCJPBlockSize = 0x5D; |
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81 |
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82 const TUint KShiftJisTrailByteIllegal = 0x7F; |
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83 |
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84 |
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85 |
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86 // SecureID for Brower app |
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87 |
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88 const TUint32 KBrowserSecureId = 0x10008D39; |
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89 |
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90 // Define for converting from YenSign to BackSlash |
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91 |
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92 const TUint KCharacterCodeForYenSign = 0x00A5; |
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93 |
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94 const TUint KCharacterCodeForBackSlash = 0x005C; |
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95 |
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96 |
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97 |
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98 // fullwidth question mark |
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99 |
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100 _LIT8(KLit8EucJpPackedReplacementForUnconvertibleUnicodeCharacters, "\xa1\xa9"); |
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101 |
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102 #if defined(_DEBUG) |
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103 |
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104 _LIT(KLitPanicText, "EucJpDirectmap"); |
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105 |
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106 enum TPanic |
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107 |
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108 { |
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109 |
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110 EPanicNothingToConvert1=1, |
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111 |
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112 EPanicNothingToConvert2, |
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113 |
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114 EPanicNothingToConvert3, |
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115 |
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116 EPanicNothingToConvert4, |
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117 |
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118 EPanicNothingToConvert5, |
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119 |
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120 EPanicNothingToConvert6, |
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121 |
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122 EPanicOddNumberOfBytes1, |
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123 |
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124 EPanicOddNumberOfBytes2, |
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125 |
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126 EPanicOddNumberOfBytes3, |
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127 |
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128 EPanicOddNumberOfBytes4, |
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129 |
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130 EPanicOddNumberOfBytes5, |
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131 |
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132 EPanicOddNumberOfBytes6, |
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133 |
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134 EPanicBadHighBit1, |
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135 |
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136 EPanicBadHighBit2, |
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137 |
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138 EPanicBadHighBit3, |
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139 |
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140 EPanicBadHighBit4, |
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141 |
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142 EPanicBadHighBit5, |
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143 |
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144 EPanicBadHighBit6, |
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145 |
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146 EPanicBadHighBit7, |
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147 |
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148 EPanicBadPointers1, |
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149 |
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150 EPanicBadPointers2, |
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151 |
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152 EPanicBadPointers3, |
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153 |
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154 EPanicBadPointers4, |
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155 |
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156 EPanicBadPointers5, |
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157 |
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158 EPanicBadPointers6, |
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159 |
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160 EPanicBadPointers7, |
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161 |
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162 EPanicBadPointers8, |
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163 |
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164 EPanicBadPointers9, |
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165 |
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166 EPanicBadPointers10, |
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167 |
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168 EPanicBadPointers11, |
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169 |
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170 EPanicBadPointers12, |
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171 |
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172 EPanicBadPointers13, |
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173 |
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174 EPanicBadPointers14, |
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175 |
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176 EPanicBadPointers15, |
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177 |
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178 EPanicBadPointers16, |
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179 |
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180 EPanicBadPointers17, |
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181 |
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182 EPanicBadPointers18, |
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183 |
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184 EPanicBadPointers19, |
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185 |
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186 EPanicBadPointers20, |
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187 |
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188 EPanicBadPointers21, |
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189 |
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190 EPanicBadPointers22, |
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191 |
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192 EPanicBadPointers23, |
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193 |
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194 EPanicBadPointers24, |
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195 |
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196 EPanicBadPointers25, |
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197 |
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198 EPanicBadPointers26, |
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199 |
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200 EPanicBadPointers27, |
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201 |
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202 EPanicBadPointers28, |
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203 |
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204 EPanicBadPointers29, |
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205 |
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206 EPanicBadPointers30, |
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207 |
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208 EPanicBadPointers31, |
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209 |
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210 EPanicBadPointers32, |
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211 |
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212 EPanicBadPointers33, |
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213 |
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214 EPanicBadPointers34, |
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215 |
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216 EPanicBadPointers35, |
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217 |
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218 EPanicBadPointers36, |
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219 |
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220 EPanicBadCalculation1, |
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221 |
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222 EPanicBadCalculation2, |
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223 |
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224 EPanicNumberOfBytesIsNotMultipleOfThree1, |
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225 |
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226 EPanicNumberOfBytesIsNotMultipleOfThree2, |
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227 |
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228 EPanicSingleShift2Expected, |
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229 |
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230 EPanicSingleShift3Expected |
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231 |
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232 }; |
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233 |
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234 |
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235 |
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236 LOCAL_C void Panic(TPanic aPanic) |
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237 |
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238 { |
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239 |
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240 User::Panic(KLitPanicText, aPanic); |
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241 |
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242 } |
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243 |
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244 #endif |
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245 |
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246 |
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247 |
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248 // ----------------------------------------------------------------------------- |
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249 |
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250 // DummyConvertFromIntermediateBufferInPlace |
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251 |
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252 // |
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253 |
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254 // ----------------------------------------------------------------------------- |
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255 |
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256 // |
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257 |
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258 LOCAL_C void DummyConvertFromIntermediateBufferInPlace(TInt, TDes8&, |
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259 |
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260 TInt& aNumberOfCharactersThatDroppedOut) |
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261 |
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262 { |
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263 |
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264 aNumberOfCharactersThatDroppedOut = 0; |
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265 |
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266 } |
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267 |
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268 |
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269 |
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270 // ----------------------------------------------------------------------------- |
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271 |
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272 // ConvertFromJisX0208ToEucJpPackedInPlace |
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273 |
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274 // Converts from JIS code to EUC-JP |
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275 |
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276 // ----------------------------------------------------------------------------- |
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277 |
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278 // |
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279 |
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280 LOCAL_C void ConvertFromJisX0208ToEucJpPackedInPlace( |
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281 |
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282 TInt aStartPositionInDescriptor, TDes8& aDescriptor, |
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283 |
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284 TInt& aNumberOfCharactersThatDroppedOut) |
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285 |
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286 { |
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287 |
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288 aNumberOfCharactersThatDroppedOut = 0; |
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289 |
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290 const TInt descriptorLength = aDescriptor.Length(); |
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291 |
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292 __ASSERT_DEBUG(descriptorLength > aStartPositionInDescriptor, |
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293 |
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294 Panic(EPanicNothingToConvert1)); |
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295 |
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296 __ASSERT_DEBUG((descriptorLength - aStartPositionInDescriptor) % 2 == 0, |
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297 |
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298 Panic(EPanicOddNumberOfBytes1)); |
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299 |
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300 TUint8* pointerToCurrentByte = CONST_CAST(TUint8*, aDescriptor.Ptr()); |
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301 |
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302 const TUint8* const pointerToLastByte = |
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303 |
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304 pointerToCurrentByte + (descriptorLength - 1); |
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305 |
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306 pointerToCurrentByte += aStartPositionInDescriptor; |
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307 |
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308 FOREVER |
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309 |
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310 { |
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311 |
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312 const TUint currentByte = *pointerToCurrentByte; |
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313 |
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314 __ASSERT_DEBUG((currentByte & 0x80) == 0, Panic(EPanicBadHighBit1)); |
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315 |
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316 *pointerToCurrentByte = STATIC_CAST(TUint8, currentByte | 0x80); |
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317 |
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318 __ASSERT_DEBUG(pointerToCurrentByte <= pointerToLastByte, |
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319 |
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320 Panic(EPanicBadPointers1)); |
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321 |
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322 if (pointerToCurrentByte >= pointerToLastByte) |
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323 |
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324 { |
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325 |
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326 break; |
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327 |
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328 } |
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329 |
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330 ++pointerToCurrentByte; |
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331 |
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332 } |
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333 |
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334 } |
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335 |
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336 |
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337 |
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338 // ----------------------------------------------------------------------------- |
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339 |
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340 // ConvertFromHalfWidthKatakana8ToEucJpPackedInPlace |
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341 |
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342 // Converts from half width Katakana code to EUC-JP |
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343 |
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344 // ----------------------------------------------------------------------------- |
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345 |
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346 // |
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347 |
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348 LOCAL_C void ConvertFromHalfWidthKatakana8ToEucJpPackedInPlace( |
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349 |
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350 TInt aStartPositionInDescriptor, TDes8& aDescriptor, |
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351 |
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352 TInt& aNumberOfCharactersThatDroppedOut) |
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353 |
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354 { |
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355 |
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356 TInt descriptorLength = aDescriptor.Length(); |
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357 |
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358 __ASSERT_DEBUG(descriptorLength > aStartPositionInDescriptor, |
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359 |
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360 Panic(EPanicNothingToConvert2)); |
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361 |
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362 aNumberOfCharactersThatDroppedOut = Max(0, (descriptorLength - |
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363 |
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364 aStartPositionInDescriptor) - ((aDescriptor.MaxLength() - |
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365 |
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366 aStartPositionInDescriptor) / 2)); |
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367 |
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368 descriptorLength -= aNumberOfCharactersThatDroppedOut; |
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369 |
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370 __ASSERT_DEBUG(descriptorLength >= aStartPositionInDescriptor, |
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371 |
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372 Panic(EPanicBadCalculation1)); |
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373 |
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374 if (descriptorLength <= aStartPositionInDescriptor) |
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375 |
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376 { |
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377 |
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378 aDescriptor.SetLength(descriptorLength); |
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379 |
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380 } |
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381 |
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382 else |
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383 |
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384 { |
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385 |
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386 // pointerToTargetByte is initialized properly when descriptorLength |
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387 |
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388 // has been offset to the actual final length of aDescriptor |
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389 |
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390 TUint8* pointerToTargetByte = CONST_CAST(TUint8*, aDescriptor.Ptr()); |
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391 |
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392 const TUint8* const pointerToFirstByte = |
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393 |
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394 pointerToTargetByte + aStartPositionInDescriptor; |
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395 |
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396 const TUint8* pointerToSourceByte = |
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397 |
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398 pointerToTargetByte + (descriptorLength - 1); |
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399 |
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400 descriptorLength = |
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401 |
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402 ((descriptorLength - aStartPositionInDescriptor) * 2) + |
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403 |
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404 aStartPositionInDescriptor; |
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405 |
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406 __ASSERT_DEBUG((descriptorLength - aStartPositionInDescriptor) % 2 == 0, |
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407 |
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408 Panic(EPanicOddNumberOfBytes2)); |
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409 |
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410 aDescriptor.SetLength(descriptorLength); |
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411 |
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412 // pointerToTargetByte is is initialized properly here |
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413 |
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414 pointerToTargetByte += descriptorLength - 1; |
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415 |
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416 FOREVER |
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417 |
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418 { |
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419 |
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420 *pointerToTargetByte = *pointerToSourceByte; |
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421 |
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422 __ASSERT_DEBUG(pointerToTargetByte>pointerToFirstByte, |
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423 |
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424 Panic(EPanicBadPointers2)); |
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425 |
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426 --pointerToTargetByte; |
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427 |
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428 *pointerToTargetByte = KSingleShift2; |
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429 |
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430 __ASSERT_DEBUG(pointerToTargetByte >= pointerToFirstByte, |
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431 |
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432 Panic(EPanicBadPointers3)); |
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433 |
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434 if (pointerToTargetByte <= pointerToFirstByte) |
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435 |
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436 { |
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437 |
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438 break; |
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439 |
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440 } |
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441 |
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442 --pointerToTargetByte; |
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443 |
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444 __ASSERT_DEBUG(pointerToSourceByte > pointerToFirstByte, |
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445 |
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446 Panic(EPanicBadPointers4)); |
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447 |
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448 --pointerToSourceByte; |
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449 |
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450 } |
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451 |
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452 __ASSERT_DEBUG(pointerToTargetByte == pointerToFirstByte, |
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453 |
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454 Panic(EPanicBadPointers5)); |
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455 |
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456 __ASSERT_DEBUG(pointerToSourceByte == pointerToFirstByte, |
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457 |
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458 Panic(EPanicBadPointers6)); |
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459 |
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460 } |
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461 |
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462 } |
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463 |
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464 |
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465 |
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466 // ----------------------------------------------------------------------------- |
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467 |
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468 // ConvertFromJisX0212ToEucJpPackedInPlace |
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469 |
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470 // Converts from JIS code to EUC-JP |
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471 |
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472 // ----------------------------------------------------------------------------- |
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473 |
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474 // |
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475 |
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476 LOCAL_C void ConvertFromJisX0212ToEucJpPackedInPlace( |
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477 |
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478 TInt aStartPositionInDescriptor, TDes8& aDescriptor, |
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479 |
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480 TInt& aNumberOfCharactersThatDroppedOut) |
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481 |
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482 { |
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483 |
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484 TInt descriptorLength=aDescriptor.Length(); |
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485 |
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486 __ASSERT_DEBUG(descriptorLength > aStartPositionInDescriptor, |
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487 |
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488 Panic(EPanicNothingToConvert3)); |
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489 |
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490 __ASSERT_DEBUG((descriptorLength - aStartPositionInDescriptor) % 2 == 0, |
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491 |
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492 Panic(EPanicOddNumberOfBytes3)); |
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493 |
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494 aNumberOfCharactersThatDroppedOut = |
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495 |
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496 Max(0, ((descriptorLength - aStartPositionInDescriptor) / 2) - |
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497 |
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498 ((aDescriptor.MaxLength() - aStartPositionInDescriptor) / 3)); |
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499 |
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500 descriptorLength -= aNumberOfCharactersThatDroppedOut * 2; |
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501 |
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502 __ASSERT_DEBUG(descriptorLength >= aStartPositionInDescriptor, |
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503 |
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504 Panic(EPanicBadCalculation2)); |
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505 |
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506 if (descriptorLength <= aStartPositionInDescriptor) |
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507 |
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508 { |
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509 |
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510 aDescriptor.SetLength(descriptorLength); |
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511 |
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512 } |
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513 |
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514 else |
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515 |
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516 { |
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517 |
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518 __ASSERT_DEBUG((descriptorLength - aStartPositionInDescriptor) % 2 == 0, |
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519 |
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520 Panic(EPanicOddNumberOfBytes4)); |
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521 |
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522 // pointerToTargetByte is initialized properly when descriptorLength |
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523 |
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524 // has been offset to the actual final length of aDescriptor |
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525 |
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526 TUint8* pointerToTargetByte = CONST_CAST(TUint8*, aDescriptor.Ptr()); |
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527 |
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528 const TUint8* const pointerToFirstByte = |
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529 |
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530 pointerToTargetByte + aStartPositionInDescriptor; |
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531 |
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532 const TUint8* pointerToSourceByte = |
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533 |
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534 pointerToTargetByte + (descriptorLength - 1); |
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535 |
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536 descriptorLength = (((descriptorLength - aStartPositionInDescriptor) |
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537 |
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538 * 3) / 2) + aStartPositionInDescriptor; |
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539 |
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540 __ASSERT_DEBUG((descriptorLength - aStartPositionInDescriptor) % 3 ==0, |
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541 |
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542 Panic(EPanicNumberOfBytesIsNotMultipleOfThree1)); |
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543 |
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544 aDescriptor.SetLength(descriptorLength); |
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545 |
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546 // pointerToTargetByte is is initialized properly here |
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547 |
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548 pointerToTargetByte += descriptorLength - 1; |
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549 |
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550 FOREVER |
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551 |
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552 { |
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553 |
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554 __ASSERT_DEBUG((*pointerToSourceByte & 0x80) == 0, |
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555 |
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556 Panic(EPanicBadHighBit2)); |
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557 |
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558 *pointerToTargetByte = |
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559 |
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560 STATIC_CAST(TUint8, *pointerToSourceByte | 0x80); |
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561 |
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562 __ASSERT_DEBUG(pointerToTargetByte > pointerToFirstByte, |
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563 |
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564 Panic(EPanicBadPointers7)); |
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565 |
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566 --pointerToTargetByte; |
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567 |
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568 __ASSERT_DEBUG(pointerToSourceByte > pointerToFirstByte, |
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569 |
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570 Panic(EPanicBadPointers8)); |
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571 |
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572 --pointerToSourceByte; |
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573 |
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574 __ASSERT_DEBUG((*pointerToSourceByte & 0x80) == 0, |
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575 |
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576 Panic(EPanicBadHighBit3)); |
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577 |
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578 *pointerToTargetByte = |
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579 |
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580 STATIC_CAST(TUint8, *pointerToSourceByte | 0x80); |
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581 |
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582 __ASSERT_DEBUG(pointerToTargetByte > pointerToFirstByte, |
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583 |
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584 Panic(EPanicBadPointers9)); |
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585 |
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586 --pointerToTargetByte; |
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587 |
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588 *pointerToTargetByte = KSingleShift3; |
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589 |
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590 __ASSERT_DEBUG(pointerToTargetByte >= pointerToFirstByte, |
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591 |
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592 Panic(EPanicBadPointers10)); |
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593 |
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594 if (pointerToTargetByte <= pointerToFirstByte) |
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595 |
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596 { |
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597 |
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598 break; |
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599 |
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600 } |
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601 |
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602 --pointerToTargetByte; |
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603 |
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604 __ASSERT_DEBUG(pointerToSourceByte > pointerToFirstByte, |
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605 |
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606 Panic(EPanicBadPointers11)); |
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607 |
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608 --pointerToSourceByte; |
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609 |
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610 } |
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611 |
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612 __ASSERT_DEBUG(pointerToTargetByte == pointerToFirstByte, |
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613 |
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614 Panic(EPanicBadPointers12)); |
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615 |
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616 __ASSERT_DEBUG(pointerToSourceByte == pointerToFirstByte, |
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617 |
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618 Panic(EPanicBadPointers13)); |
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619 |
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620 } |
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621 |
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622 } |
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623 |
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624 |
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625 |
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626 // ----------------------------------------------------------------------------- |
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627 |
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628 // NumberOfBytesAbleToConvertToJisRoman |
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629 |
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630 // Counts the bytes of be able to convert to JIS |
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631 |
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632 // ----------------------------------------------------------------------------- |
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633 |
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634 // |
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635 |
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636 LOCAL_C TInt NumberOfBytesAbleToConvertToJisRoman(const TDesC8& aDescriptor) |
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637 |
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638 { |
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639 |
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640 const TUint8* pointerToPreviousByte = aDescriptor.Ptr() - 1; |
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641 |
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642 const TUint8* const pointerToLastByte = |
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643 |
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644 pointerToPreviousByte + aDescriptor.Length(); |
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645 |
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646 if (pointerToPreviousByte == pointerToLastByte) |
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647 |
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648 { |
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649 |
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650 return 0; |
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651 |
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652 } |
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653 |
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654 FOREVER |
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655 |
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656 { |
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657 |
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658 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
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659 |
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660 Panic(EPanicBadPointers14)); |
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661 |
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662 const TUint currentByte = *(pointerToPreviousByte + 1); |
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663 |
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664 if (currentByte & 0x80) |
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665 |
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666 { |
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667 |
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668 break; |
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669 |
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670 } |
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671 |
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672 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
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673 |
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674 Panic(EPanicBadPointers15)); |
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675 |
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676 ++pointerToPreviousByte; |
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677 |
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678 __ASSERT_DEBUG(pointerToPreviousByte <= pointerToLastByte, |
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679 |
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680 Panic(EPanicBadPointers16)); |
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681 |
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682 if (pointerToPreviousByte >= pointerToLastByte) |
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683 |
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684 { |
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685 |
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686 break; |
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687 |
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688 } |
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689 |
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690 } |
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691 |
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692 return (pointerToPreviousByte + 1) - aDescriptor.Ptr(); |
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693 |
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694 } |
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695 |
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696 |
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697 |
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698 // ----------------------------------------------------------------------------- |
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699 |
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700 // NumberOfBytesAbleToConvertToJisX0208 |
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701 |
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702 // Counts the bytes of be able to convert to JIS |
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703 |
|
704 // ----------------------------------------------------------------------------- |
|
705 |
|
706 // |
|
707 |
|
708 LOCAL_C TInt NumberOfBytesAbleToConvertToJisX0208(const TDesC8& aDescriptor) |
|
709 |
|
710 { |
|
711 |
|
712 const TUint8* pointerToPreviousByte = aDescriptor.Ptr() - 1; |
|
713 |
|
714 const TUint8* const pointerToLastByte = |
|
715 |
|
716 pointerToPreviousByte + aDescriptor.Length(); |
|
717 |
|
718 if (pointerToPreviousByte == pointerToLastByte) |
|
719 |
|
720 { |
|
721 |
|
722 return 0; |
|
723 |
|
724 } |
|
725 |
|
726 FOREVER |
|
727 |
|
728 { |
|
729 |
|
730 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
731 |
|
732 Panic(EPanicBadPointers17)); |
|
733 |
|
734 TUint currentByte = *(pointerToPreviousByte + 1); |
|
735 |
|
736 if (currentByte < 0xa0) |
|
737 |
|
738 { |
|
739 |
|
740 break; |
|
741 |
|
742 } |
|
743 |
|
744 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
745 |
|
746 Panic(EPanicBadPointers18)); |
|
747 |
|
748 if (pointerToLastByte - pointerToPreviousByte < 2) |
|
749 |
|
750 { |
|
751 |
|
752 break; |
|
753 |
|
754 } |
|
755 |
|
756 ++pointerToPreviousByte; |
|
757 |
|
758 currentByte = *(pointerToPreviousByte + 1); |
|
759 |
|
760 if (currentByte < 0xa0) |
|
761 |
|
762 { |
|
763 |
|
764 return CCnvCharacterSetConverter::EErrorIllFormedInput; |
|
765 |
|
766 } |
|
767 |
|
768 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
769 |
|
770 Panic(EPanicBadPointers19)); |
|
771 |
|
772 ++pointerToPreviousByte; |
|
773 |
|
774 __ASSERT_DEBUG(pointerToPreviousByte <= pointerToLastByte, |
|
775 |
|
776 Panic(EPanicBadPointers20)); |
|
777 |
|
778 if (pointerToPreviousByte >= pointerToLastByte) |
|
779 |
|
780 { |
|
781 |
|
782 break; |
|
783 |
|
784 } |
|
785 |
|
786 } |
|
787 |
|
788 return (pointerToPreviousByte + 1) - aDescriptor.Ptr(); |
|
789 |
|
790 } |
|
791 |
|
792 |
|
793 |
|
794 // ----------------------------------------------------------------------------- |
|
795 |
|
796 // NumberOfBytesAbleToConvertToHalfWidthKatakana8 |
|
797 |
|
798 // Counts the bytes of be able to convert to half width Katakana |
|
799 |
|
800 // ----------------------------------------------------------------------------- |
|
801 |
|
802 // |
|
803 |
|
804 LOCAL_C TInt NumberOfBytesAbleToConvertToHalfWidthKatakana8(const TDesC8& aDescriptor) |
|
805 |
|
806 { |
|
807 |
|
808 const TUint8* pointerToPreviousByte = aDescriptor.Ptr() - 1; |
|
809 |
|
810 const TUint8* const pointerToLastByte = |
|
811 |
|
812 pointerToPreviousByte + aDescriptor.Length(); |
|
813 |
|
814 if (pointerToPreviousByte == pointerToLastByte) |
|
815 |
|
816 { |
|
817 |
|
818 return 0; |
|
819 |
|
820 } |
|
821 |
|
822 FOREVER |
|
823 |
|
824 { |
|
825 |
|
826 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
827 |
|
828 Panic(EPanicBadPointers21)); |
|
829 |
|
830 TUint currentByte = *(pointerToPreviousByte + 1); |
|
831 |
|
832 if (currentByte != KSingleShift2) |
|
833 |
|
834 { |
|
835 |
|
836 break; |
|
837 |
|
838 } |
|
839 |
|
840 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
841 |
|
842 Panic(EPanicBadPointers22)); |
|
843 |
|
844 if (pointerToLastByte - pointerToPreviousByte < 2) |
|
845 |
|
846 { |
|
847 |
|
848 break; |
|
849 |
|
850 } |
|
851 |
|
852 ++pointerToPreviousByte; |
|
853 |
|
854 currentByte = *(pointerToPreviousByte + 1); |
|
855 |
|
856 if (currentByte < 0xa0) |
|
857 |
|
858 { |
|
859 |
|
860 return CCnvCharacterSetConverter::EErrorIllFormedInput; |
|
861 |
|
862 } |
|
863 |
|
864 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
865 |
|
866 Panic(EPanicBadPointers23)); |
|
867 |
|
868 ++pointerToPreviousByte; |
|
869 |
|
870 __ASSERT_DEBUG(pointerToPreviousByte <= pointerToLastByte, |
|
871 |
|
872 Panic(EPanicBadPointers24)); |
|
873 |
|
874 if (pointerToPreviousByte >= pointerToLastByte) |
|
875 |
|
876 { |
|
877 |
|
878 break; |
|
879 |
|
880 } |
|
881 |
|
882 } |
|
883 |
|
884 return (pointerToPreviousByte + 1) - aDescriptor.Ptr(); |
|
885 |
|
886 } |
|
887 |
|
888 |
|
889 |
|
890 // ----------------------------------------------------------------------------- |
|
891 |
|
892 // NumberOfBytesAbleToConvertToJisX0212 |
|
893 |
|
894 // Counts the bytes of be able to convert to JIS |
|
895 |
|
896 // ----------------------------------------------------------------------------- |
|
897 |
|
898 // |
|
899 |
|
900 LOCAL_C TInt NumberOfBytesAbleToConvertToJisX0212(const TDesC8& aDescriptor) |
|
901 |
|
902 { |
|
903 |
|
904 const TUint8* pointerToPreviousByte = aDescriptor.Ptr() - 1; |
|
905 |
|
906 const TUint8* const pointerToLastByte = |
|
907 |
|
908 pointerToPreviousByte + aDescriptor.Length(); |
|
909 |
|
910 if (pointerToPreviousByte == pointerToLastByte) |
|
911 |
|
912 { |
|
913 |
|
914 return 0; |
|
915 |
|
916 } |
|
917 |
|
918 FOREVER |
|
919 |
|
920 { |
|
921 |
|
922 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
923 |
|
924 Panic(EPanicBadPointers25)); |
|
925 |
|
926 TUint currentByte = *(pointerToPreviousByte + 1); |
|
927 |
|
928 if (currentByte != KSingleShift3) |
|
929 |
|
930 { |
|
931 |
|
932 break; |
|
933 |
|
934 } |
|
935 |
|
936 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
937 |
|
938 Panic(EPanicBadPointers26)); |
|
939 |
|
940 if (pointerToLastByte - pointerToPreviousByte < 3) |
|
941 |
|
942 { |
|
943 |
|
944 break; |
|
945 |
|
946 } |
|
947 |
|
948 ++pointerToPreviousByte; |
|
949 |
|
950 currentByte = *(pointerToPreviousByte + 1); |
|
951 |
|
952 if (currentByte < 0xa0) |
|
953 |
|
954 { |
|
955 |
|
956 return CCnvCharacterSetConverter::EErrorIllFormedInput; |
|
957 |
|
958 } |
|
959 |
|
960 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
961 |
|
962 Panic(EPanicBadPointers27)); |
|
963 |
|
964 ++pointerToPreviousByte; |
|
965 |
|
966 currentByte = *(pointerToPreviousByte + 1); |
|
967 |
|
968 if (currentByte < 0xa0) |
|
969 |
|
970 { |
|
971 |
|
972 return CCnvCharacterSetConverter::EErrorIllFormedInput; |
|
973 |
|
974 } |
|
975 |
|
976 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
977 |
|
978 Panic(EPanicBadPointers28)); |
|
979 |
|
980 ++pointerToPreviousByte; |
|
981 |
|
982 __ASSERT_DEBUG(pointerToPreviousByte <= pointerToLastByte, |
|
983 |
|
984 Panic(EPanicBadPointers29)); |
|
985 |
|
986 if (pointerToPreviousByte >= pointerToLastByte) |
|
987 |
|
988 { |
|
989 |
|
990 break; |
|
991 |
|
992 } |
|
993 |
|
994 } |
|
995 |
|
996 return (pointerToPreviousByte + 1) - aDescriptor.Ptr(); |
|
997 |
|
998 } |
|
999 |
|
1000 |
|
1001 |
|
1002 // ----------------------------------------------------------------------------- |
|
1003 |
|
1004 // DummyConvertToIntermediateBufferInPlace |
|
1005 |
|
1006 // |
|
1007 |
|
1008 // ----------------------------------------------------------------------------- |
|
1009 |
|
1010 // |
|
1011 |
|
1012 LOCAL_C void DummyConvertToIntermediateBufferInPlace(TDes8&) |
|
1013 |
|
1014 { |
|
1015 |
|
1016 } |
|
1017 |
|
1018 |
|
1019 |
|
1020 // ----------------------------------------------------------------------------- |
|
1021 |
|
1022 // ConvertToJisX0208FromEucJpPackedInPlace |
|
1023 |
|
1024 // Converts from EUC-JP to JIS code |
|
1025 |
|
1026 // ----------------------------------------------------------------------------- |
|
1027 |
|
1028 // |
|
1029 |
|
1030 LOCAL_C void ConvertToJisX0208FromEucJpPackedInPlace(TDes8& aDescriptor) |
|
1031 |
|
1032 { |
|
1033 |
|
1034 const TInt descriptorLength = aDescriptor.Length(); |
|
1035 |
|
1036 __ASSERT_DEBUG(descriptorLength > 0, Panic(EPanicNothingToConvert4)); |
|
1037 |
|
1038 __ASSERT_DEBUG(descriptorLength % 2 == 0, Panic(EPanicOddNumberOfBytes5)); |
|
1039 |
|
1040 TUint8* pointerToCurrentByte = CONST_CAST(TUint8*, aDescriptor.Ptr()); |
|
1041 |
|
1042 const TUint8* const pointerToLastByte = |
|
1043 |
|
1044 pointerToCurrentByte + (descriptorLength - 1); |
|
1045 |
|
1046 FOREVER |
|
1047 |
|
1048 { |
|
1049 |
|
1050 const TUint currentByte = *pointerToCurrentByte; |
|
1051 |
|
1052 __ASSERT_DEBUG(currentByte & 0x80, Panic(EPanicBadHighBit4)); |
|
1053 |
|
1054 *pointerToCurrentByte = STATIC_CAST(TUint8, currentByte & ~0x80); |
|
1055 |
|
1056 __ASSERT_DEBUG(pointerToCurrentByte <= pointerToLastByte, |
|
1057 |
|
1058 Panic(EPanicBadPointers30)); |
|
1059 |
|
1060 if (pointerToCurrentByte >= pointerToLastByte) |
|
1061 |
|
1062 { |
|
1063 |
|
1064 break; |
|
1065 |
|
1066 } |
|
1067 |
|
1068 ++pointerToCurrentByte; |
|
1069 |
|
1070 } |
|
1071 |
|
1072 } |
|
1073 |
|
1074 |
|
1075 |
|
1076 // ----------------------------------------------------------------------------- |
|
1077 |
|
1078 // ConvertToHalfWidthKatakana8FromEucJpPackedInPlace |
|
1079 |
|
1080 // Converts from EUC-JP to half width Katakana |
|
1081 |
|
1082 // ----------------------------------------------------------------------------- |
|
1083 |
|
1084 // |
|
1085 |
|
1086 LOCAL_C void ConvertToHalfWidthKatakana8FromEucJpPackedInPlace( |
|
1087 |
|
1088 TDes8& aDescriptor) |
|
1089 |
|
1090 { |
|
1091 |
|
1092 const TInt descriptorLength = aDescriptor.Length(); |
|
1093 |
|
1094 __ASSERT_DEBUG(descriptorLength > 0, Panic(EPanicNothingToConvert5)); |
|
1095 |
|
1096 __ASSERT_DEBUG(descriptorLength % 2 == 0, Panic(EPanicOddNumberOfBytes6)); |
|
1097 |
|
1098 TUint8* pointerToTargetByte = CONST_CAST(TUint8*, aDescriptor.Ptr()); |
|
1099 |
|
1100 const TUint8* pointerToSourceByte = pointerToTargetByte; |
|
1101 |
|
1102 const TUint8* const pointerToLastByte = pointerToSourceByte + |
|
1103 |
|
1104 (descriptorLength - 1); |
|
1105 |
|
1106 FOREVER |
|
1107 |
|
1108 { |
|
1109 |
|
1110 __ASSERT_DEBUG(*pointerToSourceByte == KSingleShift2, |
|
1111 |
|
1112 Panic(EPanicSingleShift2Expected)); |
|
1113 |
|
1114 __ASSERT_DEBUG(pointerToSourceByte < pointerToLastByte, |
|
1115 |
|
1116 Panic(EPanicBadPointers31)); |
|
1117 |
|
1118 ++pointerToSourceByte; |
|
1119 |
|
1120 const TUint sourceByte = *pointerToSourceByte; |
|
1121 |
|
1122 __ASSERT_DEBUG(sourceByte & 0x80, Panic(EPanicBadHighBit5)); |
|
1123 |
|
1124 *pointerToTargetByte = STATIC_CAST(TUint8, sourceByte); |
|
1125 |
|
1126 __ASSERT_DEBUG(pointerToSourceByte <= pointerToLastByte, |
|
1127 |
|
1128 Panic(EPanicBadPointers32)); |
|
1129 |
|
1130 if (pointerToSourceByte >= pointerToLastByte) |
|
1131 |
|
1132 { |
|
1133 |
|
1134 break; |
|
1135 |
|
1136 } |
|
1137 |
|
1138 ++pointerToSourceByte; |
|
1139 |
|
1140 ++pointerToTargetByte; |
|
1141 |
|
1142 } |
|
1143 |
|
1144 aDescriptor.SetLength(descriptorLength / 2); |
|
1145 |
|
1146 } |
|
1147 |
|
1148 |
|
1149 |
|
1150 // ----------------------------------------------------------------------------- |
|
1151 |
|
1152 // ConvertToJisX0212FromEucJpPackedInPlace |
|
1153 |
|
1154 // Converts from EUC-JP to JIS |
|
1155 |
|
1156 // ----------------------------------------------------------------------------- |
|
1157 |
|
1158 // |
|
1159 |
|
1160 LOCAL_C void ConvertToJisX0212FromEucJpPackedInPlace(TDes8& aDescriptor) |
|
1161 |
|
1162 { |
|
1163 |
|
1164 const TInt descriptorLength = aDescriptor.Length(); |
|
1165 |
|
1166 __ASSERT_DEBUG(descriptorLength > 0, Panic(EPanicNothingToConvert6)); |
|
1167 |
|
1168 __ASSERT_DEBUG(descriptorLength % 3 == 0, |
|
1169 |
|
1170 Panic(EPanicNumberOfBytesIsNotMultipleOfThree2)); |
|
1171 |
|
1172 TUint8* pointerToTargetByte = CONST_CAST(TUint8*, aDescriptor.Ptr()); |
|
1173 |
|
1174 const TUint8* pointerToSourceByte = pointerToTargetByte; |
|
1175 |
|
1176 const TUint8* const pointerToLastByte = |
|
1177 |
|
1178 pointerToSourceByte + (descriptorLength - 1); |
|
1179 |
|
1180 FOREVER |
|
1181 |
|
1182 { |
|
1183 |
|
1184 __ASSERT_DEBUG(*pointerToSourceByte == KSingleShift3, |
|
1185 |
|
1186 Panic(EPanicSingleShift3Expected)); |
|
1187 |
|
1188 __ASSERT_DEBUG(pointerToSourceByte < pointerToLastByte, |
|
1189 |
|
1190 Panic(EPanicBadPointers33)); |
|
1191 |
|
1192 ++pointerToSourceByte; |
|
1193 |
|
1194 TUint sourceByte = *pointerToSourceByte; |
|
1195 |
|
1196 __ASSERT_DEBUG(sourceByte & 0x80, Panic(EPanicBadHighBit6)); |
|
1197 |
|
1198 *pointerToTargetByte = STATIC_CAST(TUint8, sourceByte & ~0x80); |
|
1199 |
|
1200 __ASSERT_DEBUG(pointerToSourceByte<pointerToLastByte, |
|
1201 |
|
1202 Panic(EPanicBadPointers34)); |
|
1203 |
|
1204 ++pointerToSourceByte; |
|
1205 |
|
1206 sourceByte = *pointerToSourceByte; |
|
1207 |
|
1208 __ASSERT_DEBUG(sourceByte&0x80, Panic(EPanicBadHighBit7)); |
|
1209 |
|
1210 __ASSERT_DEBUG(pointerToTargetByte < pointerToLastByte, |
|
1211 |
|
1212 Panic(EPanicBadPointers35)); |
|
1213 |
|
1214 ++pointerToTargetByte; |
|
1215 |
|
1216 *pointerToTargetByte = STATIC_CAST(TUint8, sourceByte & ~0x80); |
|
1217 |
|
1218 __ASSERT_DEBUG(pointerToSourceByte <= pointerToLastByte, |
|
1219 |
|
1220 Panic(EPanicBadPointers36)); |
|
1221 |
|
1222 if (pointerToSourceByte >= pointerToLastByte) |
|
1223 |
|
1224 { |
|
1225 |
|
1226 break; |
|
1227 |
|
1228 } |
|
1229 |
|
1230 ++pointerToSourceByte; |
|
1231 |
|
1232 ++pointerToTargetByte; |
|
1233 |
|
1234 } |
|
1235 |
|
1236 aDescriptor.SetLength((descriptorLength / 3) * 2); |
|
1237 |
|
1238 } |
|
1239 |
|
1240 |
|
1241 |
|
1242 // ----------------------------------------------------------------------------- |
|
1243 |
|
1244 // NumberOfBytesAbleToConvertToPictograph |
|
1245 |
|
1246 // |
|
1247 |
|
1248 // ----------------------------------------------------------------------------- |
|
1249 |
|
1250 // |
|
1251 |
|
1252 LOCAL_C TInt NumberOfBytesAbleToConvertToPictograph1(const TDesC8& aDescriptor) |
|
1253 |
|
1254 { |
|
1255 |
|
1256 const TUint8* pointerToPreviousByte = aDescriptor.Ptr() - 1; |
|
1257 |
|
1258 const TUint8* const pointerToLastByte = |
|
1259 |
|
1260 pointerToPreviousByte + aDescriptor.Length(); |
|
1261 |
|
1262 if (pointerToPreviousByte == pointerToLastByte) |
|
1263 |
|
1264 { |
|
1265 |
|
1266 return 0; |
|
1267 |
|
1268 } |
|
1269 |
|
1270 for (;pointerToPreviousByte < pointerToLastByte;) |
|
1271 |
|
1272 { |
|
1273 |
|
1274 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
1275 |
|
1276 Panic(EPanicBadPointers14)); |
|
1277 |
|
1278 TUint currentByte = *(pointerToPreviousByte + 1); |
|
1279 |
|
1280 const TUint nextByte = *(pointerToPreviousByte + 2); |
|
1281 |
|
1282 if (((currentByte < KFirstByteRangeFirstBlockStart) || |
|
1283 |
|
1284 (currentByte > KFirstByteRangeFirstBlockEnd)) || |
|
1285 |
|
1286 ((nextByte < KSecondByteRangeSecondBlockStart) || |
|
1287 |
|
1288 (nextByte > KSecondByteRangeSecondBlockEnd))) |
|
1289 |
|
1290 { |
|
1291 |
|
1292 break; |
|
1293 |
|
1294 } |
|
1295 |
|
1296 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
1297 |
|
1298 Panic(EPanicBadPointers15)); |
|
1299 |
|
1300 pointerToPreviousByte += 2; |
|
1301 |
|
1302 } |
|
1303 |
|
1304 return (pointerToPreviousByte + 1) - aDescriptor.Ptr(); |
|
1305 |
|
1306 } |
|
1307 |
|
1308 |
|
1309 |
|
1310 // ----------------------------------------------------------------------------- |
|
1311 |
|
1312 // NumberOfBytesAbleToConvertToPictograph |
|
1313 |
|
1314 // |
|
1315 |
|
1316 // ----------------------------------------------------------------------------- |
|
1317 |
|
1318 // |
|
1319 |
|
1320 LOCAL_C TInt NumberOfBytesAbleToConvertToPictograph2(const TDesC8& aDescriptor) |
|
1321 |
|
1322 { |
|
1323 |
|
1324 const TUint8* pointerToPreviousByte = aDescriptor.Ptr() - 1; |
|
1325 |
|
1326 const TUint8* const pointerToLastByte = |
|
1327 |
|
1328 pointerToPreviousByte + aDescriptor.Length(); |
|
1329 |
|
1330 if (pointerToPreviousByte == pointerToLastByte) |
|
1331 |
|
1332 { |
|
1333 |
|
1334 return 0; |
|
1335 |
|
1336 } |
|
1337 |
|
1338 for (;pointerToPreviousByte < pointerToLastByte;) |
|
1339 |
|
1340 { |
|
1341 |
|
1342 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
1343 |
|
1344 Panic(EPanicBadPointers14)); |
|
1345 |
|
1346 TUint currentByte = *(pointerToPreviousByte + 1); |
|
1347 |
|
1348 if (currentByte == KSingleShift3) |
|
1349 |
|
1350 { |
|
1351 |
|
1352 pointerToPreviousByte++; |
|
1353 |
|
1354 currentByte = *(pointerToPreviousByte + 1); |
|
1355 |
|
1356 } |
|
1357 |
|
1358 else |
|
1359 |
|
1360 { |
|
1361 |
|
1362 break; |
|
1363 |
|
1364 } |
|
1365 |
|
1366 if (currentByte < 0xa0) |
|
1367 |
|
1368 { |
|
1369 |
|
1370 return CCnvCharacterSetConverter::EErrorIllFormedInput; |
|
1371 |
|
1372 } |
|
1373 |
|
1374 const TUint nextByte = *(pointerToPreviousByte + 2); |
|
1375 |
|
1376 if (nextByte < 0xa0) |
|
1377 |
|
1378 { |
|
1379 |
|
1380 return CCnvCharacterSetConverter::EErrorIllFormedInput; |
|
1381 |
|
1382 } |
|
1383 |
|
1384 if (((currentByte < KFirstByteRangeFirstBlockStart) || |
|
1385 |
|
1386 (currentByte > KFirstByteRangeFirstBlockEnd)) || |
|
1387 |
|
1388 ((nextByte < KSecondByteRangeSecondBlockStart) || |
|
1389 |
|
1390 (nextByte > KSecondByteRangeSecondBlockEnd))) |
|
1391 |
|
1392 { |
|
1393 |
|
1394 // return the previous byte to the beginning of loop. |
|
1395 |
|
1396 pointerToPreviousByte--; |
|
1397 |
|
1398 break; |
|
1399 |
|
1400 } |
|
1401 |
|
1402 __ASSERT_DEBUG(pointerToPreviousByte < pointerToLastByte, |
|
1403 |
|
1404 Panic(EPanicBadPointers15)); |
|
1405 |
|
1406 pointerToPreviousByte += 2; |
|
1407 |
|
1408 } |
|
1409 |
|
1410 return (pointerToPreviousByte + 1) - aDescriptor.Ptr(); |
|
1411 |
|
1412 } |
|
1413 |
|
1414 |
|
1415 |
|
1416 // ----------------------------------------------------------------------------- |
|
1417 |
|
1418 // ConvertFromPictogaphToEucJpDirectmapInPlace |
|
1419 |
|
1420 // Converts from EucJp packed Pictograph to Unicode |
|
1421 |
|
1422 // ----------------------------------------------------------------------------- |
|
1423 |
|
1424 // |
|
1425 |
|
1426 LOCAL_C void ConvertFromPictogaphToEucJpDirectmapInPlace( |
|
1427 |
|
1428 TInt aStartPositionInDescriptor, TDes8& aDescriptor, |
|
1429 |
|
1430 TInt& aNumberOfCharactersThatDroppedOut) |
|
1431 |
|
1432 { |
|
1433 |
|
1434 TInt descriptorLength=aDescriptor.Length(); |
|
1435 |
|
1436 __ASSERT_DEBUG(descriptorLength > aStartPositionInDescriptor, |
|
1437 |
|
1438 Panic(EPanicNothingToConvert3)); |
|
1439 |
|
1440 __ASSERT_DEBUG((descriptorLength - aStartPositionInDescriptor) % 2 == 0, |
|
1441 |
|
1442 Panic(EPanicOddNumberOfBytes3)); |
|
1443 |
|
1444 TInt bytesPerCharacter = 2; |
|
1445 |
|
1446 if (aDescriptor[0] >= KEUCJPSecondBlockStart) |
|
1447 |
|
1448 { |
|
1449 |
|
1450 bytesPerCharacter = 3; |
|
1451 |
|
1452 } |
|
1453 |
|
1454 |
|
1455 |
|
1456 aNumberOfCharactersThatDroppedOut = |
|
1457 |
|
1458 Max(0, ((descriptorLength - aStartPositionInDescriptor) / 2) - |
|
1459 |
|
1460 ((aDescriptor.MaxLength() - aStartPositionInDescriptor) / |
|
1461 |
|
1462 bytesPerCharacter)); |
|
1463 |
|
1464 descriptorLength -= aNumberOfCharactersThatDroppedOut * 2; |
|
1465 |
|
1466 __ASSERT_DEBUG(descriptorLength >= aStartPositionInDescriptor, |
|
1467 |
|
1468 Panic(EPanicBadCalculation2)); |
|
1469 |
|
1470 if (descriptorLength <= aStartPositionInDescriptor) |
|
1471 |
|
1472 { |
|
1473 |
|
1474 aDescriptor.SetLength(descriptorLength); |
|
1475 |
|
1476 } |
|
1477 |
|
1478 else |
|
1479 |
|
1480 { |
|
1481 |
|
1482 __ASSERT_DEBUG((descriptorLength - aStartPositionInDescriptor) % 2 == 0, |
|
1483 |
|
1484 Panic(EPanicOddNumberOfBytes4)); |
|
1485 |
|
1486 // pointerToTargetByte is initialized properly when descriptorLength |
|
1487 |
|
1488 // has been offset to the actual final length of aDescriptor |
|
1489 |
|
1490 TUint8* pointerToTargetByte = CONST_CAST(TUint8*, aDescriptor.Ptr()); |
|
1491 |
|
1492 const TUint8* const pointerToFirstByte = |
|
1493 |
|
1494 pointerToTargetByte + aStartPositionInDescriptor; |
|
1495 |
|
1496 const TUint8* pointerToSourceByte = |
|
1497 |
|
1498 pointerToTargetByte + (descriptorLength - 1); |
|
1499 |
|
1500 descriptorLength = (((descriptorLength - aStartPositionInDescriptor) |
|
1501 |
|
1502 * bytesPerCharacter) / 2) + aStartPositionInDescriptor; |
|
1503 |
|
1504 __ASSERT_DEBUG((descriptorLength - aStartPositionInDescriptor) % |
|
1505 |
|
1506 bytesPerCharacter == 0, Panic(EPanicNumberOfBytesIsNotMultipleOfThree1)); |
|
1507 |
|
1508 aDescriptor.SetLength(descriptorLength); |
|
1509 |
|
1510 // pointerToTargetByte is is initialized properly here |
|
1511 |
|
1512 pointerToTargetByte += descriptorLength - 1; |
|
1513 |
|
1514 for (;pointerToTargetByte > pointerToFirstByte; ) |
|
1515 |
|
1516 { |
|
1517 |
|
1518 TInt secondByte = *pointerToSourceByte; |
|
1519 |
|
1520 TInt firstByte = *(pointerToSourceByte - 1); |
|
1521 |
|
1522 |
|
1523 |
|
1524 if (bytesPerCharacter == 3) |
|
1525 |
|
1526 { |
|
1527 |
|
1528 firstByte = (firstByte - KEUCJPSecondBlockStart) * 2 + |
|
1529 |
|
1530 KFirstByteRangeFirstBlockStart; |
|
1531 |
|
1532 } |
|
1533 |
|
1534 else |
|
1535 |
|
1536 { |
|
1537 |
|
1538 firstByte = (firstByte - KPictographStartFirstByte) * 2 + |
|
1539 |
|
1540 KFirstByteRangeFirstBlockStart; |
|
1541 |
|
1542 } |
|
1543 |
|
1544 if (static_cast<TInt>(KEUCJPBlockSize + KPictographStartSecondByte + 1) |
|
1545 |
|
1546 < secondByte) |
|
1547 |
|
1548 { |
|
1549 |
|
1550 if (secondByte > KShiftJisTrailByteIllegal) |
|
1551 |
|
1552 secondByte -= 1; |
|
1553 |
|
1554 secondByte = secondByte -(KPictographStartSecondByte + |
|
1555 |
|
1556 KEUCJPBlockSize + 1) + KSecondByteRangeSecondBlockStart; |
|
1557 |
|
1558 firstByte++; |
|
1559 |
|
1560 } |
|
1561 |
|
1562 else |
|
1563 |
|
1564 { |
|
1565 |
|
1566 if (secondByte > KShiftJisTrailByteIllegal) |
|
1567 |
|
1568 secondByte -= 1; |
|
1569 |
|
1570 secondByte += KSecondByteRangeSecondBlockStart - KPictographStartSecondByte; |
|
1571 |
|
1572 } |
|
1573 |
|
1574 *pointerToTargetByte = static_cast<TUint8>(secondByte); |
|
1575 |
|
1576 --pointerToTargetByte; |
|
1577 |
|
1578 *pointerToTargetByte = static_cast<TUint8>(firstByte); |
|
1579 |
|
1580 if (bytesPerCharacter == 3) |
|
1581 |
|
1582 { |
|
1583 |
|
1584 --pointerToTargetByte; |
|
1585 |
|
1586 *pointerToTargetByte = KSingleShift3; |
|
1587 |
|
1588 } |
|
1589 |
|
1590 __ASSERT_DEBUG(pointerToTargetByte >= pointerToFirstByte, |
|
1591 |
|
1592 Panic(EPanicBadPointers10)); |
|
1593 |
|
1594 --pointerToTargetByte; |
|
1595 |
|
1596 pointerToSourceByte -= 2; |
|
1597 |
|
1598 } |
|
1599 |
|
1600 } |
|
1601 |
|
1602 } |
|
1603 |
|
1604 |
|
1605 |
|
1606 // ----------------------------------------------------------------------------- |
|
1607 |
|
1608 // ConvertToPictographFromEucJpPackedInPlace1 |
|
1609 |
|
1610 // Converts from EucJp packed Pictograph to Unicode |
|
1611 |
|
1612 // ----------------------------------------------------------------------------- |
|
1613 |
|
1614 // |
|
1615 |
|
1616 LOCAL_C void ConvertToPictographFromEucJpPackedInPlace(TDes8& aDescriptor) |
|
1617 |
|
1618 { |
|
1619 |
|
1620 const TInt descriptorLength = aDescriptor.Length(); |
|
1621 |
|
1622 __ASSERT_DEBUG(descriptorLength > 0, Panic(EPanicNothingToConvert6)); |
|
1623 |
|
1624 TUint8* pointerToTargetByte = CONST_CAST(TUint8*, aDescriptor.Ptr()); |
|
1625 |
|
1626 const TUint8* pointerToSourceByte = pointerToTargetByte; |
|
1627 |
|
1628 const TUint8* const pointerToLastByte = |
|
1629 |
|
1630 pointerToSourceByte + (descriptorLength - 1); |
|
1631 |
|
1632 TInt bytesPerCharacter = 2; |
|
1633 |
|
1634 TInt sjisStartbyte = KPictographStartFirstByte; |
|
1635 |
|
1636 if (*pointerToSourceByte == KSingleShift3) |
|
1637 |
|
1638 { |
|
1639 |
|
1640 ++pointerToSourceByte; |
|
1641 |
|
1642 bytesPerCharacter = 3; |
|
1643 |
|
1644 sjisStartbyte = KEUCJPSecondBlockStart; |
|
1645 |
|
1646 } |
|
1647 |
|
1648 for (;pointerToSourceByte < pointerToLastByte; ) |
|
1649 |
|
1650 { |
|
1651 |
|
1652 __ASSERT_DEBUG(pointerToSourceByte < pointerToLastByte, |
|
1653 |
|
1654 Panic(EPanicBadPointers33)); |
|
1655 |
|
1656 TUint firstByte = (*pointerToSourceByte |
|
1657 |
|
1658 - KFirstByteRangeFirstBlockStart) / 2 + sjisStartbyte; |
|
1659 |
|
1660 TUint secondByte = *(pointerToSourceByte + 1); |
|
1661 |
|
1662 if ((*pointerToSourceByte % 2) == 0) |
|
1663 |
|
1664 { |
|
1665 |
|
1666 secondByte += KPictographStartSecondByte - |
|
1667 |
|
1668 KSecondByteRangeSecondBlockStart + KEUCJPBlockSize + 1; |
|
1669 |
|
1670 if (secondByte >= KShiftJisTrailByteIllegal) |
|
1671 |
|
1672 secondByte++; |
|
1673 |
|
1674 } |
|
1675 |
|
1676 else |
|
1677 |
|
1678 { |
|
1679 |
|
1680 secondByte += KPictographStartSecondByte - KSecondByteRangeSecondBlockStart; |
|
1681 |
|
1682 if (secondByte >= KShiftJisTrailByteIllegal) |
|
1683 |
|
1684 secondByte++; |
|
1685 |
|
1686 } |
|
1687 |
|
1688 *pointerToTargetByte = static_cast<TUint8>(firstByte); |
|
1689 |
|
1690 |
|
1691 |
|
1692 __ASSERT_DEBUG(pointerToTargetByte < pointerToLastByte, |
|
1693 |
|
1694 Panic(EPanicBadPointers35)); |
|
1695 |
|
1696 ++pointerToTargetByte; |
|
1697 |
|
1698 *pointerToTargetByte = static_cast<TUint8>(secondByte); |
|
1699 |
|
1700 __ASSERT_DEBUG(pointerToSourceByte <= pointerToLastByte, |
|
1701 |
|
1702 Panic(EPanicBadPointers36)); |
|
1703 |
|
1704 pointerToSourceByte += 2; |
|
1705 |
|
1706 ++pointerToTargetByte; |
|
1707 |
|
1708 } |
|
1709 |
|
1710 aDescriptor.SetLength((descriptorLength / bytesPerCharacter) * 2); |
|
1711 |
|
1712 } |
|
1713 |
|
1714 |
|
1715 |
|
1716 // New Interface class |
|
1717 |
|
1718 class CEucJpDirectmapImplementation : public CCharacterSetConverterPluginInterface |
|
1719 |
|
1720 { |
|
1721 |
|
1722 public: |
|
1723 |
|
1724 virtual const TDesC8& ReplacementForUnconvertibleUnicodeCharacters(); |
|
1725 |
|
1726 |
|
1727 |
|
1728 virtual TInt ConvertFromUnicode( |
|
1729 |
|
1730 CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, |
|
1731 |
|
1732 const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, |
|
1733 |
|
1734 TDes8& aForeign, |
|
1735 |
|
1736 const TDesC16& aUnicode, |
|
1737 |
|
1738 CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters ); |
|
1739 |
|
1740 |
|
1741 |
|
1742 virtual TInt ConvertToUnicode( |
|
1743 |
|
1744 CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, |
|
1745 |
|
1746 TDes16& aUnicode, |
|
1747 |
|
1748 const TDesC8& aForeign, |
|
1749 |
|
1750 TInt&, |
|
1751 |
|
1752 TInt& aNumberOfUnconvertibleCharacters, |
|
1753 |
|
1754 TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter ); |
|
1755 |
|
1756 |
|
1757 |
|
1758 virtual TBool IsInThisCharacterSetL( |
|
1759 |
|
1760 TBool& aSetToTrue, |
|
1761 |
|
1762 TInt& aConfidenceLevel, |
|
1763 |
|
1764 const TDesC8& ); |
|
1765 |
|
1766 |
|
1767 |
|
1768 static CEucJpDirectmapImplementation* NewL(); |
|
1769 |
|
1770 |
|
1771 |
|
1772 virtual ~CEucJpDirectmapImplementation(); |
|
1773 |
|
1774 private: |
|
1775 |
|
1776 CEucJpDirectmapImplementation(); |
|
1777 |
|
1778 }; |
|
1779 |
|
1780 |
|
1781 |
|
1782 // ----------------------------------------------------------------------------- |
|
1783 |
|
1784 // ReplacementForUnconvertibleUnicodeCharacters |
|
1785 |
|
1786 // Retruns the character to replacement for unconvertible unicode character. |
|
1787 |
|
1788 // Returns: '?': |
|
1789 |
|
1790 // ----------------------------------------------------------------------------- |
|
1791 |
|
1792 // |
|
1793 |
|
1794 const TDesC8& CEucJpDirectmapImplementation::ReplacementForUnconvertibleUnicodeCharacters() |
|
1795 |
|
1796 { |
|
1797 |
|
1798 return KLit8EucJpPackedReplacementForUnconvertibleUnicodeCharacters; |
|
1799 |
|
1800 } |
|
1801 |
|
1802 |
|
1803 |
|
1804 // ----------------------------------------------------------------------------- |
|
1805 |
|
1806 // ConvertFromUnicode |
|
1807 |
|
1808 // Converts from Unicode to EUC-JP |
|
1809 |
|
1810 // Returns: The number of unconverted characters |
|
1811 |
|
1812 // ----------------------------------------------------------------------------- |
|
1813 |
|
1814 // |
|
1815 |
|
1816 TInt CEucJpDirectmapImplementation::ConvertFromUnicode( |
|
1817 |
|
1818 CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, |
|
1819 |
|
1820 const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, |
|
1821 |
|
1822 TDes8& aForeign, const TDesC16& aUnicode, |
|
1823 |
|
1824 CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters) |
|
1825 |
|
1826 { |
|
1827 |
|
1828 TFixedArray<CnvUtilities::SCharacterSet, 6> characterSets; |
|
1829 |
|
1830 characterSets[0].iConversionData = &CnvJisRoman::ConversionData(); |
|
1831 |
|
1832 characterSets[0].iConvertFromIntermediateBufferInPlace = |
|
1833 |
|
1834 DummyConvertFromIntermediateBufferInPlace; |
|
1835 |
|
1836 characterSets[0].iEscapeSequence = &KNullDesC8; |
|
1837 |
|
1838 characterSets[1].iConversionData = &CnvJisX0208::ConversionData(); |
|
1839 |
|
1840 characterSets[1].iConvertFromIntermediateBufferInPlace = |
|
1841 |
|
1842 ConvertFromJisX0208ToEucJpPackedInPlace; |
|
1843 |
|
1844 characterSets[1].iEscapeSequence = &KNullDesC8; |
|
1845 |
|
1846 characterSets[2].iConversionData = &CnvHalfWidthKatakana8::ConversionData(); |
|
1847 |
|
1848 characterSets[2].iConvertFromIntermediateBufferInPlace = |
|
1849 |
|
1850 ConvertFromHalfWidthKatakana8ToEucJpPackedInPlace; |
|
1851 |
|
1852 characterSets[2].iEscapeSequence = &KNullDesC8; |
|
1853 |
|
1854 characterSets[3].iConversionData = &CnvJisX0212::ConversionData(); |
|
1855 |
|
1856 characterSets[3].iConvertFromIntermediateBufferInPlace = |
|
1857 |
|
1858 ConvertFromJisX0212ToEucJpPackedInPlace; |
|
1859 |
|
1860 characterSets[3].iEscapeSequence = &KNullDesC8; |
|
1861 |
|
1862 characterSets[4].iConversionData = &CnvShiftJisDirectmap::ConversionData(); |
|
1863 |
|
1864 characterSets[4].iConvertFromIntermediateBufferInPlace = |
|
1865 |
|
1866 ConvertFromPictogaphToEucJpDirectmapInPlace; |
|
1867 |
|
1868 characterSets[4].iEscapeSequence = &KNullDesC8; |
|
1869 |
|
1870 characterSets[5].iConversionData = &CnvShiftJisDirectmap::ConversionData(); |
|
1871 |
|
1872 characterSets[5].iConvertFromIntermediateBufferInPlace = |
|
1873 |
|
1874 ConvertFromPictogaphToEucJpDirectmapInPlace; |
|
1875 |
|
1876 characterSets[5].iEscapeSequence = &KNullDesC8; |
|
1877 |
|
1878 |
|
1879 |
|
1880 TInt unconvert = CnvUtilities::ConvertFromUnicode( |
|
1881 |
|
1882 aDefaultEndiannessOfForeignCharacters, |
|
1883 |
|
1884 aReplacementForUnconvertibleUnicodeCharacters, |
|
1885 |
|
1886 aForeign, aUnicode, aIndicesOfUnconvertibleCharacters, |
|
1887 |
|
1888 characterSets.Array()); |
|
1889 |
|
1890 |
|
1891 |
|
1892 return unconvert; |
|
1893 |
|
1894 } |
|
1895 |
|
1896 |
|
1897 |
|
1898 // ----------------------------------------------------------------------------- |
|
1899 |
|
1900 // ConvertToUnicode |
|
1901 |
|
1902 // Converts from EUC-JP to Unicode. |
|
1903 |
|
1904 // Returns: The number of unconverted bytes |
|
1905 |
|
1906 // ----------------------------------------------------------------------------- |
|
1907 |
|
1908 // |
|
1909 |
|
1910 TInt CEucJpDirectmapImplementation::ConvertToUnicode( |
|
1911 |
|
1912 CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, |
|
1913 |
|
1914 TDes16& aUnicode, const TDesC8& aForeign, TInt&, |
|
1915 |
|
1916 TInt& aNumberOfUnconvertibleCharacters, |
|
1917 |
|
1918 TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter) |
|
1919 |
|
1920 { |
|
1921 |
|
1922 TFixedArray<CnvUtilities::SMethod, 6> methods; |
|
1923 |
|
1924 |
|
1925 |
|
1926 methods[0].iNumberOfBytesAbleToConvert = |
|
1927 |
|
1928 NumberOfBytesAbleToConvertToPictograph1; |
|
1929 |
|
1930 methods[0].iConvertToIntermediateBufferInPlace = |
|
1931 |
|
1932 ConvertToPictographFromEucJpPackedInPlace; |
|
1933 |
|
1934 methods[0].iConversionData = &CnvShiftJisDirectmap::ConversionData(); |
|
1935 |
|
1936 methods[0].iNumberOfBytesPerCharacter = 2; |
|
1937 |
|
1938 methods[0].iNumberOfCoreBytesPerCharacter = 2; |
|
1939 |
|
1940 methods[1].iNumberOfBytesAbleToConvert = |
|
1941 |
|
1942 NumberOfBytesAbleToConvertToPictograph2; |
|
1943 |
|
1944 methods[1].iConvertToIntermediateBufferInPlace = |
|
1945 |
|
1946 ConvertToPictographFromEucJpPackedInPlace; |
|
1947 |
|
1948 methods[1].iConversionData = &CnvShiftJisDirectmap::ConversionData(); |
|
1949 |
|
1950 methods[1].iNumberOfBytesPerCharacter = 3; |
|
1951 |
|
1952 methods[1].iNumberOfCoreBytesPerCharacter = 2; |
|
1953 |
|
1954 |
|
1955 |
|
1956 methods[2].iNumberOfBytesAbleToConvert = NumberOfBytesAbleToConvertToJisRoman; |
|
1957 |
|
1958 methods[2].iConvertToIntermediateBufferInPlace = |
|
1959 |
|
1960 DummyConvertToIntermediateBufferInPlace; |
|
1961 |
|
1962 methods[2].iConversionData = &CnvJisRoman::ConversionData(); |
|
1963 |
|
1964 methods[2].iNumberOfBytesPerCharacter = 1; |
|
1965 |
|
1966 methods[2].iNumberOfCoreBytesPerCharacter = 1; |
|
1967 |
|
1968 methods[3].iNumberOfBytesAbleToConvert = NumberOfBytesAbleToConvertToJisX0208; |
|
1969 |
|
1970 methods[3].iConvertToIntermediateBufferInPlace = |
|
1971 |
|
1972 ConvertToJisX0208FromEucJpPackedInPlace; |
|
1973 |
|
1974 methods[3].iConversionData = &CnvJisX0208::ConversionData(); |
|
1975 |
|
1976 methods[3].iNumberOfBytesPerCharacter = 2; |
|
1977 |
|
1978 methods[3].iNumberOfCoreBytesPerCharacter = 2; |
|
1979 |
|
1980 methods[4].iNumberOfBytesAbleToConvert = |
|
1981 |
|
1982 NumberOfBytesAbleToConvertToHalfWidthKatakana8; |
|
1983 |
|
1984 methods[4].iConvertToIntermediateBufferInPlace = |
|
1985 |
|
1986 ConvertToHalfWidthKatakana8FromEucJpPackedInPlace; |
|
1987 |
|
1988 methods[4].iConversionData = &CnvHalfWidthKatakana8::ConversionData(); |
|
1989 |
|
1990 methods[4].iNumberOfBytesPerCharacter = 2; |
|
1991 |
|
1992 methods[4].iNumberOfCoreBytesPerCharacter = 1; |
|
1993 |
|
1994 methods[5].iNumberOfBytesAbleToConvert = |
|
1995 |
|
1996 NumberOfBytesAbleToConvertToJisX0212; |
|
1997 |
|
1998 methods[5].iConvertToIntermediateBufferInPlace = |
|
1999 |
|
2000 ConvertToJisX0212FromEucJpPackedInPlace; |
|
2001 |
|
2002 methods[5].iConversionData = &CnvJisX0212::ConversionData(); |
|
2003 |
|
2004 methods[5].iNumberOfBytesPerCharacter = 3; |
|
2005 |
|
2006 methods[5].iNumberOfCoreBytesPerCharacter = 2; |
|
2007 |
|
2008 |
|
2009 |
|
2010 TInt unconvert = CnvUtilities::ConvertToUnicodeFromHeterogeneousForeign( |
|
2011 |
|
2012 aDefaultEndiannessOfForeignCharacters, aUnicode, aForeign, |
|
2013 |
|
2014 aNumberOfUnconvertibleCharacters, |
|
2015 |
|
2016 aIndexOfFirstByteOfFirstUnconvertibleCharacter, methods.Array()); |
|
2017 |
|
2018 |
|
2019 |
|
2020 // The following is specific impelementation for brower. |
|
2021 |
|
2022 // If brower app calls this API, the yen sign code(0xA5) |
|
2023 |
|
2024 // must be converted to backslash code(0x5C). |
|
2025 |
|
2026 // Becasue Javascript supports backslash code ony. |
|
2027 |
|
2028 TBool browserProcess = (RProcess().SecureId().iId == KBrowserSecureId); |
|
2029 |
|
2030 if (browserProcess && aUnicode.Length() > 0) |
|
2031 |
|
2032 { |
|
2033 |
|
2034 const TUint16* pB = aUnicode.Ptr(); |
|
2035 |
|
2036 const TUint16* pbase = pB; |
|
2037 |
|
2038 const TUint16* pE = pB + aUnicode.Length() -1; |
|
2039 |
|
2040 while (pE>=pbase) |
|
2041 |
|
2042 { |
|
2043 |
|
2044 if (*pbase == KCharacterCodeForYenSign) |
|
2045 |
|
2046 { |
|
2047 |
|
2048 aUnicode[pbase - pB] = KCharacterCodeForBackSlash; |
|
2049 |
|
2050 } |
|
2051 |
|
2052 pbase++; |
|
2053 |
|
2054 } |
|
2055 |
|
2056 } |
|
2057 |
|
2058 |
|
2059 |
|
2060 return unconvert; |
|
2061 |
|
2062 } |
|
2063 |
|
2064 |
|
2065 |
|
2066 // ----------------------------------------------------------------------------- |
|
2067 |
|
2068 // IsInThisCharacterSetL |
|
2069 |
|
2070 // Detects whether the text is the character code or not. |
|
2071 |
|
2072 // Returns: ETrue: |
|
2073 |
|
2074 // ----------------------------------------------------------------------------- |
|
2075 |
|
2076 // |
|
2077 |
|
2078 TBool CEucJpDirectmapImplementation::IsInThisCharacterSetL(TBool& /*aSetToTrue*/, TInt& /*aConfidenceLevel*/, |
|
2079 |
|
2080 const TDesC8& /*aSample*/) |
|
2081 |
|
2082 { |
|
2083 |
|
2084 return EFalse; |
|
2085 |
|
2086 } |
|
2087 |
|
2088 |
|
2089 |
|
2090 CEucJpDirectmapImplementation* CEucJpDirectmapImplementation::NewL() |
|
2091 |
|
2092 { |
|
2093 |
|
2094 CEucJpDirectmapImplementation* self = new(ELeave) CEucJpDirectmapImplementation; |
|
2095 |
|
2096 return self; |
|
2097 |
|
2098 } |
|
2099 |
|
2100 |
|
2101 |
|
2102 CEucJpDirectmapImplementation::CEucJpDirectmapImplementation() |
|
2103 |
|
2104 { |
|
2105 |
|
2106 //default constructor.. do nothing |
|
2107 |
|
2108 } |
|
2109 |
|
2110 |
|
2111 |
|
2112 CEucJpDirectmapImplementation::~CEucJpDirectmapImplementation() |
|
2113 |
|
2114 { |
|
2115 |
|
2116 //default destructor .. do nothing |
|
2117 |
|
2118 } |
|
2119 |
|
2120 |
|
2121 |
|
2122 // ECOM CREATION FUNCTION |
|
2123 |
|
2124 const TImplementationProxy ImplementationTable[] = |
|
2125 |
|
2126 { |
|
2127 |
|
2128 // Note: This is the same UID as defined in old mmp-file |
|
2129 |
|
2130 // Used also in 12221212.rss ( implementation_uid ) |
|
2131 |
|
2132 IMPLEMENTATION_PROXY_ENTRY( 0x101F86A6, CEucJpDirectmapImplementation::NewL ) |
|
2133 |
|
2134 }; |
|
2135 |
|
2136 |
|
2137 |
|
2138 EXPORT_C const TImplementationProxy* ImplementationGroupProxy( TInt& aTableCount ) |
|
2139 |
|
2140 { |
|
2141 |
|
2142 aTableCount = sizeof( ImplementationTable ) / sizeof(TImplementationProxy); |
|
2143 |
|
2144 return ImplementationTable; |
|
2145 |
|
2146 } |
|
2147 |
|
2148 |
|
2149 |
|
2150 // End of file |
|
2151 |