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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 "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 module contains implementation of CStifParser |
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15 * class member functions. |
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16 * |
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17 */ |
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18 |
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19 // INCLUDE FILES |
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20 #include <e32std.h> |
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21 #include "StifParser.h" |
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22 #include "ParserTracing.h" |
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23 #include "StifFileParser.h" |
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24 |
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25 // EXTERNAL DATA STRUCTURES |
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26 // None |
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27 |
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28 // EXTERNAL FUNCTION PROTOTYPES |
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29 // None |
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30 |
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31 // CONSTANTS |
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32 // None |
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33 |
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34 // MACROS |
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35 // None |
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36 |
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37 // LOCAL CONSTANTS AND MACROS |
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38 // None |
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39 |
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40 // MODULE DATA STRUCTURES |
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41 // None |
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42 |
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43 // LOCAL FUNCTION PROTOTYPES |
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44 // None |
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45 |
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46 // FORWARD DECLARATIONS |
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47 // None |
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48 |
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49 // ==================== LOCAL FUNCTIONS ======================================= |
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50 // None |
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51 |
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52 // ================= MEMBER FUNCTIONS ========================================= |
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53 |
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54 /* |
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55 ------------------------------------------------------------------------------- |
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56 |
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57 Class: CStifParser |
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58 |
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59 Method: CStifParser |
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60 |
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61 Description: Default constructor |
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62 |
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63 C++ default constructor can NOT contain any code, that |
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64 might leave. |
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65 |
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66 Parameters: TCommentType aCommentType: in: Comment type's indication |
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67 |
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68 Return Values: None |
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69 |
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70 Errors/Exceptions: None |
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71 |
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72 Status: Approved |
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73 |
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74 ------------------------------------------------------------------------------- |
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75 */ |
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76 CStifParser::CStifParser( TCommentType aCommentType ) : |
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77 iBuffer( 0, 0 ) |
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78 { |
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79 iCommentType = aCommentType; |
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80 |
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81 iParsingMode = EFileParsing; |
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82 |
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83 iIsUnicode = EFalse; |
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84 |
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85 iFileParser = NULL; |
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86 } |
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87 |
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88 /* |
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89 ------------------------------------------------------------------------------- |
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90 |
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91 Class: CStifParser |
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92 |
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93 Method: ConstructL |
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94 |
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95 Description: Symbian OS second phase constructor |
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96 |
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97 Symbian OS default constructor can leave. |
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98 |
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99 Connecting and opening configuration file if path and file information is |
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100 given. If path and file information is not given and information is given |
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101 in buffer then create parser according to the buffer. |
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102 |
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103 Parameters: const TDesC& aPath: in: Source path definition |
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104 const TDesC& aConfig: in: Configuration filename |
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105 const TDesC& aBuffer: in: Buffer of the parsed information |
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106 |
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107 Return Values: None |
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108 |
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109 Errors/Exceptions: Leaves if called Connect method fails |
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110 Leaves if called SetSessionPath method fails |
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111 Leaves if called Open method fails |
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112 Leaves if HBufC::NewL operation leaves |
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113 |
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114 Status: Proposal |
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115 |
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116 ------------------------------------------------------------------------------- |
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117 */ |
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118 void CStifParser::ConstructL( const TDesC& aPath, |
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119 const TDesC& aConfig, |
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120 const TDesC& aBuffer) |
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121 { |
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122 if( aPath == KNullDesC && aConfig == KNullDesC && aBuffer != KNullDesC ) |
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123 { |
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124 // Set mode |
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125 iParsingMode = EBufferParsing; |
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126 |
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127 // Construct modifiable heap-based descriptor. |
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128 iBufferTmp = HBufC::NewL( aBuffer.Length() ); |
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129 //iBuffer = iBufferTmp->Des(); |
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130 iBuffer.Set( iBufferTmp->Des() ); |
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131 // Copy content |
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132 iBuffer.Copy( aBuffer ); |
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133 } |
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134 |
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135 else |
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136 { |
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137 User::LeaveIfError( iFileServer.Connect() ); |
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138 |
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139 __TRACE( KInfo, ( _L( "STIFPARSER: Open configfile '%S%S'" ), |
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140 &aPath, &aConfig ) ); |
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141 |
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142 User::LeaveIfError( iFileServer.SetSessionPath( aPath ) ); |
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143 User::LeaveIfError( iFile.Open( |
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144 iFileServer, aConfig, EFileRead | EFileShareAny ) ); |
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145 |
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146 //Check whether the file is unicoded |
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147 __TRACE(KInfo, (_L("STIFPARSER: Check if the file is unicode"))); |
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148 _LIT(KUnicode, "#UNICODE"); |
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149 const TInt KUnicodeLength(8 * 2 + 2); //times two, because we want to read unicode string using 8bit descriptor |
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150 //two characters more because on some systems FEFF is always added on the beginning of unicode file |
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151 TInt size(0); |
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152 |
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153 User::LeaveIfError(iFile.Size(size)); |
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154 |
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155 if(size >= KUnicodeLength) |
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156 { |
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157 TBuf8<KUnicodeLength> buf; |
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158 |
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159 User::LeaveIfError(iFile.Read(0, buf)); |
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160 TPtrC16 bufuni((TUint16 *)(buf.Ptr()), buf.Length() / 2); |
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161 if(bufuni.Find(KUnicode) != KErrNotFound) |
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162 { |
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163 iIsUnicode = ETrue; |
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164 __TRACE(KInfo, (_L("STIFPARSER: File is unicode"))); |
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165 } |
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166 } |
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167 |
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168 //Create file parser object |
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169 iFileParser = CStifFileParser::NewL(iFileServer, iFile, iIsUnicode, iCommentType); |
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170 } |
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171 |
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172 iOffset = 0; |
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173 |
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174 } |
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175 |
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176 /* |
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177 ------------------------------------------------------------------------------- |
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178 |
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179 Class: CStifParser |
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180 |
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181 Method: NewL |
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182 |
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183 Description: Two-phased constructor. |
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184 |
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185 Starting creating parser with path and file information. |
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186 |
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187 Parameters: const TDesC& aPath: in: Source path definition |
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188 const TDesC& aConfig: in: Configuration filename |
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189 TCommentType aCommentType: in: Comment type's indication |
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190 |
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191 Return Values: CStifParser* : pointer to CStifParser object |
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192 |
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193 Errors/Exceptions: Leaves if ConstructL leaves |
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194 |
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195 Status: Proposal |
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196 |
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197 ------------------------------------------------------------------------------- |
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198 */ |
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199 EXPORT_C CStifParser* CStifParser::NewL( const TDesC& aPath, |
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200 const TDesC& aConfig, |
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201 TCommentType aCommentType ) |
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202 { |
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203 __TRACE( KInfo, ( _L( "STIFPARSER: Debug information is used" ) ) ); |
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204 |
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205 // Create CStifParser object |
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206 CStifParser* parser = new (ELeave) CStifParser( aCommentType ); |
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207 |
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208 CleanupStack::PushL( parser ); |
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209 parser->ConstructL( aPath, aConfig ); |
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210 CleanupStack::Pop( parser ); |
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211 |
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212 return parser; |
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213 |
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214 } |
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215 |
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216 /* |
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217 ------------------------------------------------------------------------------- |
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218 |
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219 Class: CStifParser |
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220 |
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221 Method: NewL |
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222 |
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223 Description: Two-phased constructor. |
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224 |
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225 Starting creating parser with buffer information. |
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226 |
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227 Parameters: const TDesC& aBuffer: in: Buffer of the parsed informations |
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228 TCommentType aCommentType: in: Comment type's indication |
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229 |
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230 Return Values: CStifParser* : pointer to CStifParser object |
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231 |
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232 Errors/Exceptions: Leaves if ConstructL leaves |
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233 |
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234 Status: Proposal |
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235 |
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236 ------------------------------------------------------------------------------- |
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237 */ |
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238 EXPORT_C CStifParser* CStifParser::NewL( const TDesC& aBuffer, |
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239 TCommentType aCommentType ) |
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240 { |
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241 __TRACE( KInfo, ( _L( "STIFPARSER: Debug information is used" ) ) ); |
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242 |
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243 // Create CStifParser object |
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244 CStifParser* parser = new (ELeave) CStifParser( aCommentType ); |
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245 |
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246 CleanupStack::PushL( parser ); |
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247 // No path and file name informations. Buffer is given |
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248 parser->ConstructL( KNullDesC, KNullDesC, aBuffer ); |
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249 CleanupStack::Pop( parser ); |
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250 |
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251 return parser; |
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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 Class: CStifParser |
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259 |
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260 Method: ~CStifParser |
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261 |
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262 Description: Destructor |
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263 |
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264 Close file and the fileserver handles. |
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265 |
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266 Parameters: None |
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267 |
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268 Return Values: None |
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269 |
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270 Errors/Exceptions: None |
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271 |
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272 Status: Proposal |
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273 |
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274 ------------------------------------------------------------------------------- |
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275 */ |
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276 EXPORT_C CStifParser::~CStifParser() |
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277 { |
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278 |
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279 if( iParsingMode == EBufferParsing ) |
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280 { |
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281 delete iBufferTmp; |
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282 } |
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283 else |
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284 { |
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285 delete iFileParser; |
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286 iFile.Close(); |
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287 iFileServer.Close(); |
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288 } |
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289 |
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290 } |
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291 |
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292 /* |
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293 ------------------------------------------------------------------------------- |
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294 |
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295 Class: CStifParser |
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296 |
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297 Method: SectionL |
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298 |
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299 Description: Parses sections from configuration files. |
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300 |
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301 Open and read configuration source and parses a required section. |
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302 If start tag is empty the parsing starts beginning of the configuration |
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303 file. If end tag is empty the parsing goes end of configuration file. |
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304 This method starts always from beginning of configuration file and parses |
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305 first section if aSeeked parameters is not given. |
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306 If configuration file includes several sections with both start and end |
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307 tags so aSeeked parameter seeks the required section. The aSeeked |
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308 parameters indicates section that will be parsed. |
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309 |
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310 Parameters: const TDesC& aStartTag: in: Indicates a start tag for parsing |
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311 const TDesC& aEndTag: in: Indicates an end tag for parsing |
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312 TInt aSeeked: in: a seeked section which will be parsed |
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313 |
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314 Return Values: See NextSectionL() method |
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315 |
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316 Errors/Exceptions: See NextSectionL() method |
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317 |
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318 Status: Approved |
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319 |
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320 ------------------------------------------------------------------------------- |
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321 */ |
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322 EXPORT_C CStifSectionParser* CStifParser::SectionL( const TDesC& aStartTag, |
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323 const TDesC& aEndTag, |
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324 TInt aSeeked ) |
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325 { |
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326 iOffset = 0; |
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327 return NextSectionL( aStartTag, aEndTag, aSeeked ); |
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328 |
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329 } |
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330 |
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331 /* |
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332 ------------------------------------------------------------------------------- |
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333 |
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334 Class: CStifParser |
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335 |
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336 Method: NextSectionL |
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337 |
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338 Description: Parses sections from configuration files. |
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339 |
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340 Open and read configuration source and parses a required section. |
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341 If start tag is empty the parsing starts beginning of the configuration |
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342 file. If end tag is empty the parsing goes end of configuration file. |
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343 This method will parse next section after the earlier section if aSeeked |
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344 parameter is not given. |
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345 If configuration file includes several sections with both start and end |
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346 tags so aSeeked parameter seeks the required section. The aSeeked |
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347 parameters indicates section that will be parsed. |
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348 |
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349 Parameters: const TDesC& aStartTag: in: Indicates a start tag for parsing |
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350 const TDesC& aEndTag: in: Indicates an end tag for parsing |
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351 TInt aSeeked: in: a seeked section which will be parsed |
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352 |
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353 Return Values: CStifSectionParser* : pointer to CStifSectionParser object |
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354 NULL will return if NextSectionFileL (or NextSectionMemoryL) returns NULL |
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355 |
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356 Errors/Exceptions: Leaves if NextSectionFileL leaves |
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357 Leaves if NextSectionMemoryL leaves |
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358 |
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359 Status: Proposal |
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360 |
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361 ------------------------------------------------------------------------------- |
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362 */ |
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363 EXPORT_C CStifSectionParser* CStifParser::NextSectionL( const TDesC& aStartTag, |
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364 const TDesC& aEndTag, |
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365 TInt aSeeked ) |
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366 { |
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367 //If parsing mode is set to file, we parse directly in the file |
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368 if(iParsingMode == EFileParsing) |
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369 { |
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370 return NextSectionFileL(aStartTag, aEndTag, aSeeked); |
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371 } |
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372 |
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373 //If parsing mode is set to buffer, process in old way |
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374 return NextSectionMemoryL(aStartTag, aEndTag, aSeeked); |
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375 } |
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376 |
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377 /* |
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378 ------------------------------------------------------------------------------- |
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379 |
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380 Class: CStifParser |
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381 |
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382 Method: NextSectionMemoryL |
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383 |
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384 Description: Parses sections from configuration files. |
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385 |
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386 Open and read configuration source and parses a required section. |
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387 If start tag is empty the parsing starts beginning of the configuration |
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388 file. If end tag is empty the parsing goes end of configuration file. |
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389 This method will parse next section after the earlier section if aSeeked |
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390 parameter is not given. |
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391 If configuration file includes several sections with both start and end |
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392 tags so aSeeked parameter seeks the required section. The aSeeked |
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393 parameters indicates section that will be parsed. |
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394 |
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395 Parameters: const TDesC& aStartTag: in: Indicates a start tag for parsing |
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396 const TDesC& aEndTag: in: Indicates an end tag for parsing |
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397 TInt aSeeked: in: a seeked section which will be parsed |
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398 |
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399 Return Values: CStifSectionParser* : pointer to CStifSectionParser object |
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400 NULL will return if file size or aSeeked is not positive |
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401 NULL will return if start tag is not found |
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402 NULL will return if end tag is not found |
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403 NULL will return if parsed section length is not positive |
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404 |
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405 Errors/Exceptions: Leaves if called Size method fails |
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406 Leaves if HBufC::NewLC method leaves |
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407 Leaves if called Read method fails |
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408 Leaves if CStifSectionParser::NewL methods leaves |
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409 |
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410 Status: Proposal |
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411 |
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412 ------------------------------------------------------------------------------- |
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413 */ |
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414 CStifSectionParser* CStifParser::NextSectionMemoryL( const TDesC& aStartTag, |
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415 const TDesC& aEndTag, |
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416 TInt aSeeked ) |
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417 { |
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418 TInt size( 0 ); |
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419 // Parser is created straight with data |
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420 if( iParsingMode == EBufferParsing ) |
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421 { |
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422 size = iBuffer.Length(); |
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423 } |
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424 // Parser is created with path and file informations |
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425 else |
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426 { |
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427 User::LeaveIfError( iFile.Size( size ) ); |
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428 } |
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429 |
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430 // size or aSeeked cannot be 0 or negetive |
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431 if( size <= 0 || aSeeked <= 0) |
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432 { |
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433 __TRACE( |
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434 KInfo, ( _L( "STIFPARSER: NextSectionL method returns a NULL" ) ) ); |
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435 return NULL; |
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436 } |
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437 |
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438 const TInt tmpSize = 128;//--UNICODE-- KMaxName; // 128 - set to even value, because KMaxName may change in the future |
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439 TInt offset( 0 ); // Offset value to parts reading |
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440 |
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441 // Construct modifiable heap-based descriptor. tmp to CleanupStack |
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442 HBufC* tmp = HBufC::NewLC( size ); |
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443 TPtr wholeSection = tmp->Des(); |
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444 |
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445 // Construct modifiable heap-based descriptor. tmp2 to CleanupStack |
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446 HBufC8* tmp2 = HBufC8::NewLC( tmpSize ); // 128 |
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447 TPtr8 buf = tmp2->Des(); |
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448 |
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449 // Construct modifiable heap-based descriptor. tmp3 to CleanupStack |
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450 HBufC* tmp3 = HBufC::NewLC( tmpSize ); // 128 |
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451 TPtr currentSection = tmp3->Des(); |
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452 |
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453 // Parser is created straight with data |
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454 if( iParsingMode == EBufferParsing ) |
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455 { |
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456 // If 8 bit copy changes to 16 |
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457 wholeSection.Copy( iBuffer ); |
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458 } |
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459 // Parser is created with path and file informations |
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460 else |
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461 { |
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462 TPtrC16 currentSectionUnicode; |
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463 do // Read data in parts(Maximum part size is KMaxName) |
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464 { |
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465 // Read data |
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466 User::LeaveIfError( iFile.Read( offset, buf, tmpSize ) ); |
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467 |
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468 // If file is unicode convert differently |
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469 if(iIsUnicode) |
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470 { |
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471 // 8 bit to 16 with unicode conversion - simply point to byte array as to double-byte array |
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472 currentSectionUnicode.Set((TUint16 *)(buf.Ptr()), buf.Length() / 2); |
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473 // Appends current section to whole section |
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474 wholeSection.Append( currentSectionUnicode ); |
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475 } |
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476 else |
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477 { |
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478 // 8 bit to 16 |
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479 currentSection.Copy( buf ); |
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480 // Appends current section to whole section |
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481 wholeSection.Append( currentSection ); |
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482 } |
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483 |
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484 offset += tmpSize; |
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485 |
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486 } while( offset < size ); |
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487 } |
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488 |
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489 CleanupStack::PopAndDestroy( tmp3 ); |
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490 CleanupStack::PopAndDestroy( tmp2 ); |
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491 |
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492 // User wants section without c-style comments |
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493 if( iCommentType == ECStyleComments ) |
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494 { |
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495 ParseCommentsOff( wholeSection ); |
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496 } |
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497 |
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498 TLex lex( wholeSection ); |
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499 lex.SkipAndMark( iOffset ); |
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500 |
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501 // For the required section length and positions |
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502 TInt length( 0 ); |
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503 TInt lengthStartPos( 0 ); |
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504 TInt lengthEndPos( 0 ); |
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505 TBool eos( EFalse ); |
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506 TInt tagCount( 1 ); |
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507 |
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508 // Check is aStartTag given |
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509 if ( aStartTag.Length() == 0 ) |
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510 { |
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511 // Skip line break, tabs, spaces etc. |
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512 lex.SkipSpace(); |
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513 lengthStartPos = lex.Offset(); |
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514 } |
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515 else |
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516 { |
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517 // While end of section |
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518 while ( !lex.Eos() ) |
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519 { |
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520 TPtrC ptr = lex.NextToken(); |
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521 // Start of the section is found and correct section |
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522 if ( ptr == aStartTag && tagCount == aSeeked ) |
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523 { |
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524 lengthStartPos = lex.Offset(); |
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525 break; |
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526 } |
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527 // Start tag is found but not correct section |
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528 else if ( ptr == aStartTag ) |
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529 { |
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530 tagCount++; |
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531 } |
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532 } |
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533 } |
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534 |
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535 // If we are end of section lex.Eos() and eos will be ETrue |
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536 eos = lex.Eos(); |
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537 |
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538 // Seeked section is not found |
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539 if ( tagCount != aSeeked ) |
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540 { |
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541 __TRACE( KInfo, ( _L( |
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542 "STIFPARSER: NextSectionL method: Seeked section is not found" ) ) ); |
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543 CleanupStack::PopAndDestroy( tmp ); |
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544 User::Leave( KErrNotFound ); |
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545 } |
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546 |
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547 // Check is aEndTag given |
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548 if ( aEndTag.Length() == 0 ) |
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549 { |
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550 lengthEndPos = wholeSection.Length(); |
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551 } |
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552 else |
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553 { |
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554 // While end of section |
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555 while ( !lex.Eos() ) |
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556 { |
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557 TPtrC ptr = lex.NextToken(); |
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558 // End tag of the section is found |
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559 if ( ptr == aEndTag ) |
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560 { |
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561 lengthEndPos = lex.Offset(); |
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562 // Because Offset() position is after the aEndTag |
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563 lengthEndPos -= aEndTag.Length(); |
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564 break; |
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565 } |
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566 } |
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567 } |
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568 |
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569 // If we are end of section and lengthEndPos is 0 |
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570 if ( lengthEndPos == 0 ) |
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571 { |
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572 // lex.Eos() and eos will be ETrue |
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573 eos = lex.Eos(); |
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574 } |
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575 |
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576 // The length includes spaces and end of lines |
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577 length = ( lengthEndPos - lengthStartPos ); |
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578 |
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579 CStifSectionParser* section = NULL; |
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580 |
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581 // If eos is true or length is negative |
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582 if ( eos || length <= 0 ) |
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583 { |
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584 __TRACE( |
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585 KInfo, ( _L( "STIFPARSER: NextSectionL method returns a NULL" ) ) ); |
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586 } |
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587 else |
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588 { |
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589 // Make CStifSectionParser object and alloc required length |
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590 section = CStifSectionParser::NewL( length ); |
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591 CleanupStack::PushL( section ); |
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592 |
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593 // Copy required data to the section object |
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594 section->SetData( wholeSection, lengthStartPos, length ); |
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595 |
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596 //iOffset += lengthEndPos + aEndTag.Length(); |
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597 iOffset = lex.Offset(); |
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598 |
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599 CleanupStack::Pop( section ); |
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600 } |
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601 CleanupStack::PopAndDestroy( tmp ); |
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602 |
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603 return section; |
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604 |
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605 } |
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606 |
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607 /* |
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608 ------------------------------------------------------------------------------- |
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609 |
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610 Class: CStifParser |
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611 |
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612 Method: NextSectionFileL |
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613 |
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614 Description: Parses sections from configuration files. |
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615 |
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616 Open and read configuration source and parses a required section. |
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617 If start tag is empty the parsing starts beginning of the configuration |
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618 file. If end tag is empty the parsing goes end of configuration file. |
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619 This method will parse next section after the earlier section if aSeeked |
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620 parameter is not given. |
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621 If configuration file includes several sections with both start and end |
|
622 tags so aSeeked parameter seeks the required section. The aSeeked |
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623 parameters indicates section that will be parsed. |
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624 |
|
625 Parameters: const TDesC& aStartTag: in: Indicates a start tag for parsing |
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626 const TDesC& aEndTag: in: Indicates an end tag for parsing |
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627 TInt aSeeked: in: a seeked section which will be parsed |
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628 |
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629 Return Values: CStifSectionParser* : pointer to CStifSectionParser object |
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630 NULL will return if file size or aSeeked is not positive |
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631 NULL will return if start tag is not found |
|
632 NULL will return if end tag is not found |
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633 NULL will return if parsed section length is not positive |
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634 |
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635 Errors/Exceptions: Leaves if called Size method fails |
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636 Leaves if HBufC::NewLC method leaves |
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637 Leaves if called Read method fails |
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638 Leaves if CStifSectionParser::NewL methods leaves |
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639 |
|
640 Status: Proposal |
|
641 |
|
642 ------------------------------------------------------------------------------- |
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643 */ |
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644 CStifSectionParser* CStifParser::NextSectionFileL( const TDesC& aStartTag, |
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645 const TDesC& aEndTag, |
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646 TInt aSeeked ) |
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647 { |
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648 HBufC *bufSection = iFileParser->NextSectionL(aStartTag, aEndTag, iOffset, aSeeked); |
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649 |
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650 if(bufSection) |
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651 { |
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652 CleanupStack::PushL(bufSection); |
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653 TPtr bufSectionPtr(bufSection->Des()); |
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654 |
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655 if(iCommentType == ECStyleComments) |
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656 { |
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657 ParseCommentsOff(bufSectionPtr); |
|
658 } |
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659 |
|
660 // Make CStifSectionParser object and alloc required length |
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661 CStifSectionParser* section = CStifSectionParser::NewL(bufSection->Length()); |
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662 CleanupStack::PushL(section); |
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663 |
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664 // Copy required data to the section object |
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665 section->SetData(bufSectionPtr, 0, bufSection->Length()); |
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666 |
|
667 // Clean |
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668 CleanupStack::Pop(section); |
|
669 CleanupStack::PopAndDestroy(bufSection); |
|
670 |
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671 return section; |
|
672 } |
|
673 |
|
674 return NULL; |
|
675 } |
|
676 |
|
677 /* |
|
678 ------------------------------------------------------------------------------- |
|
679 |
|
680 Class: CStifParser |
|
681 |
|
682 Method: ParseCommentsOff |
|
683 |
|
684 Description: Convert a section without comments. |
|
685 |
|
686 Parameters: TPtr& aBuf: inout: section to parsed |
|
687 |
|
688 Return Values: None |
|
689 |
|
690 Errors/Exceptions: None |
|
691 |
|
692 Status: Proposal |
|
693 |
|
694 ------------------------------------------------------------------------------- |
|
695 */ |
|
696 void CStifParser::ParseCommentsOff( TPtr& aBuf ) |
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697 { |
|
698 TInt startPos( 0 ); |
|
699 TInt endPos( 0 ); |
|
700 TInt length( 0 ); |
|
701 enum TSearchType |
|
702 { |
|
703 ENormalSearch, // Search a '//' or a '/*' |
|
704 ECStyleSlashs, // Search is '//' |
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705 ECStyleSlashAndAsterisk,// Search is '/*' |
|
706 EDoRemove, // Remove comment |
|
707 }; |
|
708 |
|
709 TSearchType searchType( ENormalSearch ); |
|
710 |
|
711 TLex lex( aBuf ); |
|
712 |
|
713 // Remove comments |
|
714 do |
|
715 { |
|
716 switch( searchType ) |
|
717 { |
|
718 case ENormalSearch: |
|
719 { |
|
720 if( lex.Get() == '/' ) |
|
721 { |
|
722 // Peek next character( '/' ) |
|
723 if( lex.Peek() == '/' ) |
|
724 { |
|
725 startPos = lex.Offset(); |
|
726 startPos--; |
|
727 lex.Inc(); |
|
728 searchType = ECStyleSlashs; |
|
729 } |
|
730 // Peek next character( '*' ) |
|
731 else if( lex.Peek() == '*' ) |
|
732 { |
|
733 startPos = lex.Offset(); |
|
734 startPos--; |
|
735 lex.Inc(); |
|
736 searchType = ECStyleSlashAndAsterisk; |
|
737 } |
|
738 } |
|
739 break; |
|
740 } |
|
741 case ECStyleSlashs: |
|
742 { |
|
743 // Peek next character(10 or '\n' in UNIX style ) |
|
744 if( lex.Peek() == 0x0A ) |
|
745 { |
|
746 // Don't remove line break!!( Else this fails: |
|
747 // 1st line:"this is parsed text 1" |
|
748 // 2nd line:"this is parsed text 2 // this is comments" |
|
749 // 1st and 2nd lines will be together and following |
|
750 // operations may fail) |
|
751 endPos = lex.Offset(); |
|
752 searchType = EDoRemove; |
|
753 break; |
|
754 } |
|
755 |
|
756 // Peek next character(13 or '\r' in Symbian OS) |
|
757 if ( lex.Peek() == 0x0D ) |
|
758 { |
|
759 // Increment the lex position |
|
760 lex.Inc(); |
|
761 // Peek next character(10 or '\n' in Symbian OS) |
|
762 if ( lex.Peek() == 0x0A ) |
|
763 { |
|
764 // Don't remove line break!!( Else this fails: |
|
765 // 1st line:"this is parsed text 1" |
|
766 // 2nd line:"this is parsed text 2 // this is comments" |
|
767 // 1st and 2nd lines will be together and following |
|
768 // operations may fail) |
|
769 endPos = lex.Offset(); |
|
770 endPos = endPos - 1; // Two line break characters |
|
771 searchType = EDoRemove; |
|
772 break; |
|
773 } |
|
774 // 0x0A not found, decrement position |
|
775 lex.UnGet(); |
|
776 } |
|
777 // Increment the lex position |
|
778 lex.Inc(); |
|
779 // Take current end position |
|
780 endPos = lex.Offset(); |
|
781 break; |
|
782 } |
|
783 |
|
784 case ECStyleSlashAndAsterisk: |
|
785 { |
|
786 // Peek next character( '*' ) |
|
787 if ( lex.Peek() == '*' ) |
|
788 { |
|
789 // Increment the lex position |
|
790 lex.Inc(); |
|
791 // Peek next character( '/') |
|
792 if ( lex.Peek() == '/' ) |
|
793 { |
|
794 // End of the section is found and increment the lex position |
|
795 lex.Inc(); |
|
796 endPos = lex.Offset(); |
|
797 searchType = EDoRemove; |
|
798 break; |
|
799 } |
|
800 // '/' not found, decrement position |
|
801 lex.UnGet(); |
|
802 } |
|
803 // Increment the lex position |
|
804 lex.Inc(); |
|
805 |
|
806 // Take current end position |
|
807 endPos = lex.Offset(); |
|
808 break; |
|
809 } |
|
810 default: |
|
811 { |
|
812 searchType = ENormalSearch; |
|
813 break; |
|
814 } |
|
815 |
|
816 } // End of switch |
|
817 |
|
818 // Remove comment |
|
819 if( searchType == EDoRemove ) |
|
820 { |
|
821 length = endPos - startPos; |
|
822 aBuf.Delete( startPos, length ); |
|
823 lex = aBuf; |
|
824 searchType = ENormalSearch; |
|
825 } |
|
826 |
|
827 } while ( !lex.Eos() ); |
|
828 |
|
829 // If comment is started and configure file ends to eof we remove |
|
830 // comments althougt there are no end of line or '*/' characters |
|
831 if( searchType == ECStyleSlashs || searchType == ECStyleSlashs ) |
|
832 { |
|
833 length = lex.Offset() - startPos; |
|
834 aBuf.Delete( startPos, length ); |
|
835 } |
|
836 |
|
837 HandleSpecialMarks( aBuf ); |
|
838 |
|
839 } |
|
840 |
|
841 // |
|
842 //----------------------------------------------------------------------------- |
|
843 // |
|
844 // Class: CStifParser |
|
845 // |
|
846 // Method: HandleSpecialMarks |
|
847 // |
|
848 // Description: Handles special marks.( '\/' and '\*' ). This |
|
849 // is used when ECStyleComments comment type is used. |
|
850 // |
|
851 // Parameters: TPtr& aBuf: inout: section to parsed |
|
852 // |
|
853 // Return Values: None |
|
854 // |
|
855 // Errors/Exceptions: None |
|
856 // |
|
857 // Status: Proposal |
|
858 // |
|
859 //----------------------------------------------------------------------------- |
|
860 // |
|
861 void CStifParser::HandleSpecialMarks( TPtr& aBuf ) |
|
862 { |
|
863 TLex lex( aBuf ); |
|
864 TInt firstPos( 0 ); |
|
865 |
|
866 // Replace \/ with / |
|
867 // Replace \* with * |
|
868 |
|
869 do |
|
870 { |
|
871 //RDebug::Print( _L("Print : %S"), &aBuf ); |
|
872 firstPos = lex.Offset(); |
|
873 TChar get = lex.Get(); |
|
874 // Check is '\' |
|
875 if( get == '\\' ) |
|
876 { |
|
877 firstPos = (lex.Offset()-1); |
|
878 // Peek next character( '/' or '*' ) |
|
879 if( lex.Peek() == '/' || lex.Peek() == '*') |
|
880 { |
|
881 aBuf.Delete (firstPos,1); |
|
882 lex = aBuf; |
|
883 } |
|
884 } |
|
885 |
|
886 firstPos = 0; |
|
887 } while ( !lex.Eos() ); |
|
888 |
|
889 } |
|
890 |
|
891 // End of File |