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1 /* |
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2 * Copyright (c) 2009 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 the License "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: |
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15 * @internalComponent * @released |
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16 * |
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17 */ |
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18 |
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19 #include "utf16string.h" |
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20 #ifdef __LINUX__ |
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21 #include <iconv.h> |
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22 #elif defined(WIN32) |
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23 #ifdef _STLP_INTERNAL_WINDOWS_H |
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24 #define __INTERLOCKED_DECLARED |
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25 #endif |
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26 #include <windows.h> |
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27 #endif |
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28 UTF16String::UTF16String() :iData(0), iLength(0){ |
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29 } |
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30 UTF16String::UTF16String(const UTF16String& aRight){ |
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31 iLength = aRight.iLength ; |
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32 iData = new TUint16[iLength + 1]; |
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33 memcpy(iData,aRight.iData, iLength << 1); |
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34 iData[iLength] = 0; |
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35 } |
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36 UTF16String::UTF16String(const string& aUtf8Str){ |
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37 iData = 0 ; |
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38 iLength = 0 ; |
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39 Assign(aUtf8Str.c_str(),aUtf8Str.length()); |
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40 } |
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41 UTF16String::UTF16String(const TUint16* aUtf16Str,TInt aLength /* = -1*/){ |
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42 |
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43 if(aLength < 0){ |
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44 const TUint16* p = aUtf16Str ; |
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45 while(*p){ |
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46 p++ ; |
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47 aLength ++ ; |
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48 } |
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49 } |
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50 if(aLength > 0){ |
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51 iLength = aLength ; |
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52 aLength <<= 1 ; |
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53 iData = new TUint16[iLength + 1] ; |
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54 memcpy(iData,aUtf16Str,aLength); |
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55 iData[iLength] = 0; |
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56 }else{ |
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57 iData = 0 ; |
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58 iLength = 0 ; |
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59 } |
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60 |
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61 } |
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62 UTF16String::UTF16String(const char* aUtf8Str,TInt aLength /*= -1 */){ |
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63 iData = 0 ; |
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64 iLength = 0 ; |
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65 Assign(aUtf8Str,aLength); |
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66 } |
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67 UTF16String::~UTF16String(){ |
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68 if(iData) |
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69 delete []iData ; |
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70 } |
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71 |
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72 UTF16String& UTF16String::operator = (const UTF16String& aRight){ |
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73 if(&aRight != this){ |
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74 if(iData) |
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75 delete []iData ; |
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76 iLength = aRight.iLength ; |
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77 iData = new TUint16[iLength + 1]; |
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78 memcpy(iData,aRight.iData, iLength << 1); |
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79 iData[iLength] = 0; |
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80 } |
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81 return *this; |
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82 } |
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83 bool UTF16String::FromFile(const char* aFileName){ |
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84 if(!aFileName || !(*aFileName)) |
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85 return false ; |
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86 ifstream ifs(aFileName,ios_base::in + ios_base::binary); |
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87 if(!ifs.is_open()) |
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88 return false ; |
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89 |
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90 ifs.seekg(0,ios_base::end); |
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91 size_t length = ifs.tellg(); |
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92 if((length % 2) == 1 ){ |
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93 ifs.close() ; |
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94 return false ; |
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95 } |
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96 ifs.seekg(0,ios_base::beg); |
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97 TUint16 hdr ; |
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98 size_t readLen = length - sizeof(hdr) ; |
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99 length >>= 1 ; |
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100 TUint16 *newData = new TUint16[length + 1]; |
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101 ifs.read(reinterpret_cast<char*>(&hdr),sizeof(hdr)); |
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102 if(hdr == 0xFEFF){ |
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103 ifs.read(reinterpret_cast<char*>(newData),readLen); |
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104 length -- ; |
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105 } |
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106 else{ |
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107 *newData = hdr ; |
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108 ifs.read(reinterpret_cast<char*>(&newData[1]),readLen); |
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109 } |
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110 ifs.close(); |
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111 iLength = length ; |
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112 if(iData) |
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113 delete []iData ; |
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114 iData = newData ; |
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115 iData[iLength] = 0; |
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116 return true ; |
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117 } |
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118 /** |
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119 * aResult will not changed on error |
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120 */ |
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121 bool UTF16String::ToUTF8(string& aResult) const { |
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122 if(IsEmpty()){ |
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123 aResult = ""; |
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124 return true; |
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125 } |
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126 size_t bufLen = (iLength + 1) << 2 ; |
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127 char* buffer = new char[bufLen] ; |
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128 #ifdef WIN32 |
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129 int r = WideCharToMultiByte(CP_UTF8,0,reinterpret_cast<WCHAR*>(iData),iLength,buffer,bufLen,NULL,NULL); |
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130 if(r < 0){ |
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131 delete []buffer ; |
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132 return false ; |
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133 } |
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134 buffer[r] = 0; |
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135 aResult.assign(buffer,r); |
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136 #else |
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137 iconv_t it = iconv_open("UTF-8","UTF-16"); |
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138 if((iconv_t)(-1) == it){ |
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139 return false; |
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140 } |
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141 char* bufferEnd = buffer ; |
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142 char* in_ptr = reinterpret_cast<char*>(iData); |
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143 size_t in_len = iLength << 1 ; |
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144 iconv(it,&in_ptr,&in_len ,&bufferEnd,&bufLen); |
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145 iconv_close(it); |
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146 *bufferEnd = 0 ; |
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147 size_t length = bufferEnd - buffer ; |
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148 aResult.assign(buffer,length); |
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149 #endif |
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150 delete []buffer ; |
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151 return true ; |
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152 } |
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153 bool UTF16String::Assign(const char* aUtf8Str,TInt aLength /* = -1*/) { |
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154 if(0 == aUtf8Str) return false ; |
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155 if(aLength < 0) aLength = strlen(aUtf8Str); |
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156 |
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157 #ifdef WIN32 |
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158 size_t newLength = aLength + 1; |
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159 TUint16* newData = new TUint16[newLength]; |
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160 int r = MultiByteToWideChar(CP_UTF8,0,aUtf8Str,aLength,reinterpret_cast<WCHAR*>(newData),newLength); |
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161 if(r < 0){ |
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162 delete []newData ; |
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163 return false ; |
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164 } |
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165 iLength = r ; |
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166 #else |
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167 char* forFree = 0 ; |
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168 if(aUtf8Str[aLength - 1] != 0){ |
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169 forFree = new char[aLength + 1]; |
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170 memcpy(forFree,aUtf8Str,aLength ); |
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171 forFree[aLength] = 0; |
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172 aUtf8Str = forFree ; |
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173 } |
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174 iconv_t it = iconv_open("UTF-16","UTF-8"); |
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175 if((iconv_t)(-1) == it){ |
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176 |
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177 return false; |
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178 } |
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179 size_t newLength = aLength + 2; |
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180 TUint16* newData = new TUint16[newLength]; |
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181 newLength <<= 1; |
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182 char* out_ptr = reinterpret_cast<char*>(newData); |
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183 size_t in_len = aLength ; |
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184 char* in_ptr = const_cast<char*>(aUtf8Str); |
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185 iconv(it,&in_ptr,&in_len ,&out_ptr ,&newLength); |
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186 newLength = out_ptr - reinterpret_cast<char*>(newData); |
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187 iconv_close(it); |
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188 if(newLength % 2 == 1){ //should not be possible |
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189 delete []newData; |
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190 return false ; |
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191 } |
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192 iLength = (newLength >> 1) ; |
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193 if(forFree) |
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194 delete []forFree; |
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195 #endif |
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196 newData[iLength] = 0 ; |
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197 if(iData){ |
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198 delete []iData ; |
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199 } |
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200 iData = newData ; |
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201 if(*iData == 0xFEFF) |
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202 iLength -- ; |
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203 |
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204 return true ; |
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205 } |
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206 static const TUint16 NullUInt16Str[1] = {0}; |
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207 const TUint16* UTF16String::c_str() const { |
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208 if(0 == iData) |
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209 return NullUInt16Str; |
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210 else if(0xFEFF != *iData) |
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211 return iData ; |
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212 else |
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213 return iData + 1; |
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214 } |
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215 /// |
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216 /// aUtf16Str must end with '\0' |
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217 /// |
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218 int UTF16String::Compare(const TUint16* aUtf16Str) const { |
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219 if(!aUtf16Str || !(*aUtf16Str)) |
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220 return (iLength > 0) ? 1 : 0; |
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221 size_t i ; |
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222 for(i = 0 ; aUtf16Str[i] != 0 ; i++) { |
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223 if( iData[i] > aUtf16Str[i]) |
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224 return 1; |
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225 else if(iData[i] < aUtf16Str[i]) |
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226 return -1 ; |
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227 } |
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228 return (i < iLength) ? 1 : 0 ; |
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229 } |
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230 /// |
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231 /// aUtf16Str must end with '\0' |
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232 /// |
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233 int UTF16String::CompareNoCase(const TUint16* aUtf16Str) const { |
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234 if(!aUtf16Str || !(*aUtf16Str)) |
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235 return (iLength > 0) ? 1 : 0; |
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236 size_t i ; |
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237 TUint16 a, b; |
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238 for(i = 0 ; aUtf16Str[i] != 0 ; i++) { |
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239 a = iData[i]; |
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240 b = aUtf16Str[i] ; |
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241 if( a >= 'A' && a <= 'Z') a |= 0x20 ; |
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242 if( b >= 'A' && b <= 'Z') b |= 0x20 ; |
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243 |
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244 if( a > b ) |
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245 return 1; |
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246 else if( a < b ) |
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247 return -1 ; |
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248 } |
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249 return (i < iLength) ? 1 : 0 ; |
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250 } |
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251 TUint16* UTF16String::Alloc(size_t aNewLen) { |
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252 TUint16* newData = new TUint16[aNewLen + 1] ; |
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253 if(!newData) return 0; |
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254 if(iData) delete []iData ; |
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255 |
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256 iLength = aNewLen ; |
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257 iData = newData ; |
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258 *iData = 0 ; |
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259 iData[aNewLen] = 0; |
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260 return iData; |
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261 } |