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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 "StifFileParser.h" |
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22 #include "StifTestInterface.h" |
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23 #include "ParserTracing.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: CStifFileParser |
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58 |
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59 Method: CStifFileParser |
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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 CStifFileParser::CStifFileParser(CStifParser::TCommentType aCommentType) |
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77 { |
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78 iCommentType = aCommentType; |
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79 } |
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80 |
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81 /* |
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82 ------------------------------------------------------------------------------- |
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83 |
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84 Class: CStifFileParser |
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85 |
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86 Method: ConstructL |
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87 |
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88 Description: Symbian OS second phase constructor |
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89 |
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90 Symbian OS default constructor can leave. |
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91 |
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92 Sets variables. |
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93 |
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94 Parameters: RFs& aFs: in: Handle to valid file server |
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95 RFile& aFile: in: Handle to the source file |
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96 TBool aIsUnicode in: Is file in unicode format |
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97 |
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98 Return Values: None |
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99 |
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100 Errors/Exceptions: None |
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101 |
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102 Status: Proposal |
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103 |
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104 ------------------------------------------------------------------------------- |
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105 */ |
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106 void CStifFileParser::ConstructL(RFs& aFs, |
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107 RFile& aFile, |
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108 TBool aIsUnicode) |
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109 { |
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110 //Initialization |
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111 iFileServer = aFs; |
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112 iBaseFile = aFile; |
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113 iCurrentFile = &aFile; |
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114 iIsUnicode = aIsUnicode; |
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115 iBytesPerChar = iIsUnicode ? 2 : 1; |
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116 |
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117 //Create file stack (INCLUDE feature) |
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118 iFileStack = new (ELeave) CStackDeprecated<RFile, EFalse>; |
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119 |
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120 //Add base file to file names array |
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121 TFileName fn; |
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122 iCurrentFile->FullName(fn); |
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123 HBufC* newFile = fn.AllocLC(); |
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124 User::LeaveIfError(iFileNames.Append(newFile)); |
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125 CleanupStack::Pop(newFile); |
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126 } |
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127 |
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128 /* |
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129 ------------------------------------------------------------------------------- |
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130 |
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131 Class: CStifFileParser |
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132 |
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133 Method: NewL |
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134 |
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135 Description: Two-phased constructor. |
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136 |
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137 Starting creating parser with path and file information. |
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138 |
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139 Parameters: RFs& aFs: in: Handle to file server |
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140 RFile& aFile: in: Source path definition |
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141 TBool aIsUnicode in: Is file in unicode format |
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142 TCommentType aCommentType: in: Comment type's indication |
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143 |
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144 Return Values: CStifFileParser* : pointer to CStifFileParser object |
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145 |
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146 Errors/Exceptions: Leaves if ConstructL leaves |
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147 |
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148 Status: Proposal |
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149 |
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150 ------------------------------------------------------------------------------- |
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151 */ |
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152 CStifFileParser* CStifFileParser::NewL(RFs& aFs, |
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153 RFile& aFile, |
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154 TBool aIsUnicode, |
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155 CStifParser::TCommentType aCommentType) |
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156 { |
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157 // Create CStifParser object |
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158 CStifFileParser* parser = new (ELeave) CStifFileParser(aCommentType); |
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159 |
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160 CleanupStack::PushL(parser); |
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161 parser->ConstructL(aFs, aFile, aIsUnicode); |
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162 CleanupStack::Pop(parser); |
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163 |
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164 return parser; |
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165 } |
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166 |
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167 /* |
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168 ------------------------------------------------------------------------------- |
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169 |
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170 Class: CStifFileParser |
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171 |
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172 Method: ~CStifFileParser |
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173 |
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174 Description: Destructor |
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175 |
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176 Parameters: None |
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177 |
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178 Return Values: None |
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179 |
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180 Errors/Exceptions: None |
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181 |
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182 Status: Proposal |
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183 |
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184 ------------------------------------------------------------------------------- |
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185 */ |
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186 CStifFileParser::~CStifFileParser() |
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187 { |
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188 //Close file stack |
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189 ClearFileStack(); |
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190 delete iFileStack; |
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191 |
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192 //Close section lines array |
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193 ClearSectionLinesArray(); |
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194 iSectionLines.Close(); |
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195 |
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196 //Close fila names array |
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197 while(iFileNames.Count() > 0) |
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198 { |
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199 delete iFileNames[0]; |
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200 iFileNames.Remove(0); |
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201 } |
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202 iFileNames.Close(); |
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203 } |
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204 |
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205 /* |
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206 ------------------------------------------------------------------------------- |
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207 |
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208 Class: CStifFileParser |
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209 |
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210 Method: ReadLineL |
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211 |
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212 Description: Reads line from source file |
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213 |
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214 Parameters: TPtr& aLineBuffer: in: Descriptor in which line loads |
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215 TPtr& aEndOfLineBuffer: in: Descriptor in which end of line sequence is loaded (0x0A or 0x0D 0x0A) |
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216 |
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217 Return Values: TBool: determines whether line was readed or not |
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218 |
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219 Errors/Exceptions: Leaves if seek command leaves |
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220 Leaves if buffer is too small |
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221 |
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222 Status: Proposal |
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223 |
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224 ------------------------------------------------------------------------------- |
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225 */ |
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226 TBool CStifFileParser::ReadLineL(TPtr& aLineBuffer, |
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227 TPtr& aEndOfLineBuffer) |
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228 { |
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229 //Variables |
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230 TBuf8<128> buf8; |
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231 TBuf16<128> buf16; |
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232 TPtrC16 buf; |
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233 TInt pos; |
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234 TInt offset; |
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235 TChar char0x0A = 0x000A; |
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236 TChar char0x0D = 0x000D; |
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237 |
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238 TBuf<1> b0x0A; |
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239 b0x0A.Append(char0x0A); |
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240 |
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241 //Reset buffers |
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242 aLineBuffer.Zero(); |
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243 aEndOfLineBuffer.Zero(); |
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244 |
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245 //Read from source |
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246 User::LeaveIfError(iCurrentFile->Read(buf8)); |
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247 buf16.Copy(buf8); |
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248 if(iIsUnicode) |
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249 buf.Set((TUint16 *)(buf8.Ptr()), buf8.Length() / 2); |
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250 else |
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251 buf.Set(buf16.Ptr(), buf16.Length()); |
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252 |
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253 while(buf.Length()) |
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254 { |
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255 //Search for end of line char |
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256 pos = buf.Find(b0x0A); |
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257 |
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258 //If found, append readed data to output descriptor and move back file offset to correct position |
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259 if(pos >= 0) |
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260 { |
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261 offset = -((buf.Length() - pos - 1) * iBytesPerChar); |
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262 User::LeaveIfError(iCurrentFile->Seek(ESeekCurrent, offset)); |
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263 buf.Set(buf.Ptr(), pos + 1); |
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264 aLineBuffer.Append(buf); |
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265 break; |
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266 } |
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267 //Otherwise, append whole buffer to output descriptor |
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268 else |
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269 { |
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270 aLineBuffer.Append(buf); |
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271 } |
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272 //Read next part of data |
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273 User::LeaveIfError(iCurrentFile->Read(buf8)); |
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274 buf16.Copy(buf8); |
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275 if(iIsUnicode) |
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276 { |
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277 buf.Set((TUint16 *)(buf8.Ptr()), buf8.Length() / 2); |
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278 } |
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279 else |
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280 { |
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281 buf.Set(buf16.Ptr(), buf16.Length()); |
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282 } |
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283 } |
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284 |
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285 //Set correct end of line buffer |
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286 if(buf.Length() > 1) |
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287 { |
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288 if(buf[buf.Length() - 2] == char0x0D) |
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289 { |
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290 aEndOfLineBuffer.Append(char0x0D); |
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291 } |
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292 } |
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293 if(buf.Length() > 0) |
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294 { |
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295 if(buf[buf.Length() - 1] == char0x0A) |
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296 { |
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297 aEndOfLineBuffer.Append(char0x0A); |
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298 } |
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299 else |
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300 { |
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301 aEndOfLineBuffer.Zero(); |
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302 } |
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303 } |
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304 if(aEndOfLineBuffer.Length()) |
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305 { |
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306 aLineBuffer.SetLength(aLineBuffer.Length() - aEndOfLineBuffer.Length()); |
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307 } |
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308 |
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309 //If no data was found, try to get previous file from stack |
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310 if(aLineBuffer.Length() + aEndOfLineBuffer.Length() == 0) |
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311 { |
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312 //Pop file from stack. If stack is empty, then we achieved end of base file |
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313 if(!iFileStack->IsEmpty()) |
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314 { |
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315 PopFromFileStack(); |
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316 aEndOfLineBuffer.Copy(iEolBuf); |
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317 return aEndOfLineBuffer.Length(); |
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318 } |
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319 } |
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320 //Check if this is include line |
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321 else |
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322 { |
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323 if(aLineBuffer.Find(KIncludeKeyword) == 0) |
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324 { |
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325 TFileName fn; |
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326 TLex lex(aLineBuffer); |
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327 |
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328 fn.Copy(lex.NextToken()); //get INCLUDE keyword |
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329 fn.Copy(lex.NextToken()); //get cfg file name |
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330 if(fn.Length() > 0) |
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331 { |
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332 TStifUtil::CorrectFilePathL( fn ); |
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333 PushFileToStackL(fn); |
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334 iEolBuf.Copy(aEndOfLineBuffer); |
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335 } |
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336 else |
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337 { |
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338 __TRACE(KError, (_L("No filename was given after INCLUDE. Ignoring"))); |
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339 } |
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340 |
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341 //Read next line |
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342 return ReadLineL(aLineBuffer, aEndOfLineBuffer); |
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343 } |
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344 } |
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345 |
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346 return aLineBuffer.Length() + aEndOfLineBuffer.Length(); |
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347 } |
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348 |
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349 /* |
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350 ------------------------------------------------------------------------------- |
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351 |
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352 Class: CStifFileParser |
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353 |
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354 Method: ReplaceCommentsLineL |
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355 |
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356 Description: Replaces comments with spaces from line and copy it to destination buffer |
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357 |
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358 Parameters: TPtr& aSrcBufPtr: in: Source line with comments |
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359 TPtr& aDstBufPtr: out: Destination line without comments |
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360 TWhatToFind& aFind: in out: Determines what method currently is looking for |
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361 |
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362 Return Values: None |
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363 |
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364 Errors/Exceptions: None |
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365 |
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366 Status: Proposal |
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367 |
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368 ------------------------------------------------------------------------------- |
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369 */ |
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370 void CStifFileParser::ReplaceCommentsLineL(TPtr& aSrcBufPtr, |
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371 TPtr& aDstBufPtr, |
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372 TWhatToFind& aFind) |
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373 { |
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374 //Variables |
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375 TLex lex(aSrcBufPtr); |
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376 TChar ch; |
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377 TChar chSpace(' '); |
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378 TChar chSlash('/'); |
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379 TChar chQuota('\"'); |
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380 TChar chMulti('*'); |
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381 TChar chHash('#'); |
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382 |
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383 //Clean buffer |
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384 aDstBufPtr.Zero(); |
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385 |
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386 while(!lex.Eos()) |
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387 { |
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388 ch = lex.Get(); |
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389 |
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390 //If the end of line, exit |
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391 if(!ch) |
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392 { |
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393 break; |
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394 } |
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395 |
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396 //We're looking for start od quoted text or comment |
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397 if(aFind == EStart) |
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398 { |
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399 //Special character readed |
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400 if(ch == chQuota) |
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401 { |
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402 aFind = EQuota; |
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403 aDstBufPtr.Append(chSpace); |
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404 } |
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405 //Possible start of comment |
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406 else if(ch == chSlash) |
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407 { |
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408 //Comment to the end of line found |
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409 if(lex.Peek() == chSlash) |
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410 { |
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411 break; |
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412 } |
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413 //Beginning of a comment found |
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414 else if(lex.Peek() == chMulti) |
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415 { |
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416 aFind = EEndOfComment; |
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417 ch = lex.Get(); |
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418 aDstBufPtr.Append(chSpace); |
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419 aDstBufPtr.Append(chSpace); |
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420 } |
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421 //No start of comment - add read slash |
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422 else |
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423 { |
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424 aDstBufPtr.Append(ch); |
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425 } |
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426 } |
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427 //Start of hash comment (to the end of line) |
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428 else if(ch == chHash) |
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429 { |
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430 break; |
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431 } |
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432 //Append readed character to the destination buffer |
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433 else |
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434 { |
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435 aDstBufPtr.Append(ch); |
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436 } |
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437 } |
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438 //We're looking for the end of quoted text |
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439 else if(aFind == EQuota) |
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440 { |
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441 if(ch == chQuota) |
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442 { |
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443 aFind = EStart; |
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444 aDstBufPtr.Append(chSpace); |
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445 } |
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446 else |
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447 { |
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448 aDstBufPtr.Append(chSpace); |
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449 } |
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450 } |
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451 //We're looking for the end of comment |
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452 else if(aFind == EEndOfComment) |
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453 { |
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454 //It may be the end of a comment |
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455 if(ch == chMulti) |
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456 { |
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457 ch = lex.Peek(); |
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458 //It is the end of a comment |
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459 if(ch == chSlash) |
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460 { |
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461 aFind = EStart; |
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462 ch = lex.Get(); |
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463 aDstBufPtr.Append(chSpace); |
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464 aDstBufPtr.Append(chSpace); |
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465 } |
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466 //It is not the end of a comment, add this character to the destinaton buffer |
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467 else |
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468 { |
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469 aDstBufPtr.Append(chSpace); |
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470 } |
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471 } |
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472 //It is not the end of a comment, add this character to the destinaton buffer |
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473 else |
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474 { |
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475 aDstBufPtr.Append(chSpace); |
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476 } |
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477 } |
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478 } |
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479 } |
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480 |
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481 /* |
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482 ------------------------------------------------------------------------------- |
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483 |
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484 Class: CStifFileParser |
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485 |
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486 Method: ReplaceHashCommentsLineL |
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487 |
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488 Description: Copy line to destination buffer and deletes #-style comments |
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489 |
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490 Parameters: TPtr& aSrcBufPtr: in: Source line with comments |
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491 TPtr& aDstBufPtr: out: Destination line without comments |
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492 |
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493 Return Values: None |
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494 |
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495 Errors/Exceptions: None |
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496 |
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497 Status: Proposal |
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498 |
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499 ------------------------------------------------------------------------------- |
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500 */ |
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501 void CStifFileParser::ReplaceHashCommentsLineL(TPtr& aSrcBufPtr, |
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502 TPtr& aDstBufPtr) |
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503 { |
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504 //Variables |
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505 TLex lex(aSrcBufPtr); |
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506 TChar ch; |
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507 TChar chHash('#'); |
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508 |
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509 //Prepare destination buffer |
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510 aDstBufPtr.Zero(); |
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511 |
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512 //Copy source line to destination until # char is found |
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513 while(!lex.Eos()) |
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514 { |
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515 ch = lex.Get(); |
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516 |
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517 //If the end of line, exit |
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518 if(!ch) |
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519 { |
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520 break; |
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521 } |
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522 |
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523 if(ch == chHash) |
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524 { |
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525 break; |
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526 } |
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527 else |
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528 { |
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529 aDstBufPtr.Append(ch); |
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530 } |
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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 ------------------------------------------------------------------------------- |
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536 |
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537 Class: CStifFileParser |
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538 |
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539 Method: NextSectionL |
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540 |
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541 Description: Finds n-th (aSeeked) section in file starting from m-th (aOffset) position |
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542 |
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543 Parameters: const TDesc& aStartTag: in: Starting tag of a section |
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544 const TDesc& aEndTag: in: Ending tag of a section |
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545 TInt& aOffset: in out: Current offset in file (*) |
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546 TInt aSeeked: in: Which section is to be found |
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547 |
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548 Notification: aOffset has different meaning than before adding INCLUDE functionality. |
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549 If it has 0 value, that means that we need to remove files stack and go |
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550 back to base file to the beginning. Otherwise we don't change current |
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551 file read-handler position. |
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552 |
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553 Return Values: HBufC *: address of a descriptor containing section. Section is returned without tags. |
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554 Caller must take care about the freeing descriptor. |
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555 |
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556 Errors/Exceptions: Leaves if aSeeked is less than 1 or aOffset is negative |
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557 Leaves if seek command leaves |
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558 Leaves if cannot allocate buffers |
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559 Leaves if cannot allocate section |
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560 Leaves if length of readed line exceeds KMaxLineLength constant |
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561 |
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562 Status: Proposal |
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563 |
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564 ------------------------------------------------------------------------------- |
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565 */ |
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566 HBufC* CStifFileParser::NextSectionL(const TDesC& aStartTag, |
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567 const TDesC& aEndTag, |
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568 TInt& aOffset, |
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569 TInt aSeeked) |
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570 { |
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571 // Check arguments |
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572 if(aSeeked < 1) |
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573 { |
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574 User::Leave(KErrArgument); |
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575 } |
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576 if(aOffset < 0) |
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577 { |
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578 User::Leave(KErrArgument); |
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579 } |
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580 |
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581 TInt foundSection = 0; |
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582 TInt ret; |
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583 |
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584 // Alloc buffers to read line |
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585 const TInt KMaxLineLength = 4096; //If length of readed line exceeds this constant, method will leave |
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586 |
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587 HBufC* buf = HBufC::NewL(KMaxLineLength); |
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588 CleanupStack::PushL(buf); |
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589 TPtr bufPtr(buf->Des()); |
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590 |
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591 HBufC* withoutCommentsBuf = HBufC::NewL(KMaxLineLength); |
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592 CleanupStack::PushL(withoutCommentsBuf); |
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593 TPtr withoutCommentsBufPtr(withoutCommentsBuf->Des()); |
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594 |
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595 HBufC* endOfLine = HBufC::NewL(2); //After reading a line it contains 0D0A or 0A or null (how readed line is ended) |
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596 CleanupStack::PushL(endOfLine); |
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597 TPtr endOfLinePtr(endOfLine->Des()); |
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598 |
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599 //Set valid position in file |
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600 //but only if offset shows to 0. Otherwise keep previus position |
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601 if(aOffset == 0) |
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602 { |
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603 User::LeaveIfError(iBaseFile.Seek(ESeekStart, aOffset)); |
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604 ClearFileStack(); |
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605 aOffset = 1; |
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606 } |
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607 |
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608 //Prepare to read lines |
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609 TBool validSectionBeginFound = EFalse; |
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610 TBool validSectionEndFound = EFalse; |
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611 TSectionFind whatToFindSection = ESectionStart; |
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612 //If no start tag is given start to find end tag immediatly |
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613 if(aStartTag.Length() == 0) |
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614 { |
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615 foundSection++; |
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616 whatToFindSection = ESectionEnd; |
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617 validSectionBeginFound = ETrue; |
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618 } |
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619 if(aEndTag.Length() == 0) |
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620 { |
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621 validSectionEndFound = ETrue; |
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622 } |
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623 TWhatToFind whatToFind = EStart; |
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624 |
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625 //Perform reading file |
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626 while(ReadLineL(bufPtr, endOfLinePtr)) |
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627 { |
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628 if(iCommentType == CStifParser::ECStyleComments) |
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629 { |
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630 ReplaceCommentsLineL(bufPtr, withoutCommentsBufPtr, whatToFind); |
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631 } |
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632 else |
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633 { |
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634 ReplaceHashCommentsLineL(bufPtr, withoutCommentsBufPtr); |
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635 } |
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636 if(whatToFindSection == ESectionStart) |
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637 { |
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638 //Find in line star tag (if start tag is not given, behave like we've found it) |
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639 if(aStartTag.Length() == 0) |
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640 { |
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641 ret = 0; |
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642 } |
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643 else |
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644 { |
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645 ret = withoutCommentsBuf->Find(aStartTag); |
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646 } |
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647 //If found remember position, move offset of file to actual position |
|
648 if(ret >= 0) |
|
649 { |
|
650 whatToFindSection = ESectionEnd; |
|
651 TInt offset = -(bufPtr.Length() + endOfLinePtr.Length() - ret - aStartTag.Length()) * iBytesPerChar; |
|
652 User::LeaveIfError(iCurrentFile->Seek(ESeekCurrent, offset)); |
|
653 |
|
654 whatToFind = EStart; //reset marker, because if we've found tag, we couldn't be in the middle of comment or quota |
|
655 foundSection++; |
|
656 //Add this line to section lines array |
|
657 if(foundSection == aSeeked) |
|
658 { |
|
659 validSectionBeginFound = ETrue; |
|
660 } |
|
661 continue; |
|
662 } |
|
663 } |
|
664 else if(whatToFindSection == ESectionEnd) |
|
665 { |
|
666 //Find in line end tag (if end tag is not given, behave like we've found it) |
|
667 if(aEndTag.Length() == 0) |
|
668 { |
|
669 ret = KErrNotFound; |
|
670 } |
|
671 else |
|
672 { |
|
673 ret = withoutCommentsBuf->Find(aEndTag); |
|
674 } |
|
675 //If found check if this is the one we're looking for |
|
676 if(ret >= 0) |
|
677 { |
|
678 whatToFindSection = ESectionStart; |
|
679 TInt offset = -(bufPtr.Length() + endOfLinePtr.Length() - ret - aEndTag.Length()) * iBytesPerChar; |
|
680 User::LeaveIfError(iCurrentFile->Seek(ESeekCurrent, offset)); |
|
681 |
|
682 whatToFind = EStart; //reset marker, because if we've found tag, we couldn't be in the middle of comment or quota |
|
683 if(foundSection == aSeeked) |
|
684 { |
|
685 //Add this line to section lines array |
|
686 HBufC* line = HBufC::NewLC(bufPtr.Length()); |
|
687 TPtr linePtr(line->Des()); |
|
688 linePtr.Copy(bufPtr.MidTPtr(0, ret)); |
|
689 User::LeaveIfError(iSectionLines.Append(line)); |
|
690 CleanupStack::Pop(line); |
|
691 validSectionEndFound = ETrue; |
|
692 break; |
|
693 } |
|
694 else |
|
695 { |
|
696 continue; |
|
697 } |
|
698 } |
|
699 else |
|
700 { |
|
701 //If we're in section we are looking for, add line to array |
|
702 if(foundSection == aSeeked) |
|
703 { |
|
704 HBufC* line = HBufC::NewLC(bufPtr.Length() + endOfLinePtr.Length()); |
|
705 TPtr linePtr(line->Des()); |
|
706 linePtr.Copy(bufPtr); |
|
707 linePtr.Append(endOfLinePtr); |
|
708 User::LeaveIfError(iSectionLines.Append(line)); |
|
709 CleanupStack::Pop(line); |
|
710 } |
|
711 } |
|
712 } |
|
713 } |
|
714 |
|
715 //Clean data |
|
716 CleanupStack::PopAndDestroy(endOfLine); |
|
717 CleanupStack::PopAndDestroy(withoutCommentsBuf); |
|
718 CleanupStack::PopAndDestroy(buf); |
|
719 |
|
720 //Load into section if found |
|
721 HBufC* section = NULL; |
|
722 |
|
723 if(validSectionBeginFound && validSectionEndFound) |
|
724 { |
|
725 //Count amount of memory needed for section |
|
726 TInt i; |
|
727 TInt size = 0; |
|
728 for(i = 0; i < iSectionLines.Count(); i++) |
|
729 size += iSectionLines[i]->Length(); |
|
730 |
|
731 //Copy section from array to buffer |
|
732 section = HBufC::NewL(size); |
|
733 CleanupStack::PushL(section); |
|
734 TPtr sectionPtr(section->Des()); |
|
735 |
|
736 for(i = 0; i < iSectionLines.Count(); i++) |
|
737 sectionPtr.Append(*iSectionLines[i]); |
|
738 |
|
739 ClearSectionLinesArray(); |
|
740 |
|
741 //Clean local data |
|
742 CleanupStack::Pop(section); |
|
743 |
|
744 return section; |
|
745 } |
|
746 |
|
747 ClearSectionLinesArray(); |
|
748 |
|
749 //If section was not found, then for compability with CSectionParser leave when not first section was seeking, return NULL when first section was seeking |
|
750 if(foundSection != aSeeked) |
|
751 { |
|
752 if( aSeeked - foundSection > 1) |
|
753 { |
|
754 User::Leave(KErrNotFound); |
|
755 } |
|
756 } |
|
757 |
|
758 return section; |
|
759 } |
|
760 |
|
761 /* |
|
762 ------------------------------------------------------------------------------- |
|
763 |
|
764 Class: CStifFileParser |
|
765 |
|
766 Method: ClearFileStack |
|
767 |
|
768 Description: Closes all files on file stack and clears the stack |
|
769 |
|
770 Parameters: None |
|
771 |
|
772 Return Values: None |
|
773 |
|
774 Errors/Exceptions: None |
|
775 |
|
776 Status: Proposal |
|
777 |
|
778 ------------------------------------------------------------------------------- |
|
779 */ |
|
780 void CStifFileParser::ClearFileStack(void) |
|
781 { |
|
782 while(!iFileStack->IsEmpty()) |
|
783 { |
|
784 PopFromFileStack(); |
|
785 } |
|
786 } |
|
787 |
|
788 /* |
|
789 ------------------------------------------------------------------------------- |
|
790 |
|
791 Class: CStifFileParser |
|
792 |
|
793 Method: PopFromFileStack |
|
794 |
|
795 Description: Pops RFile handle from file stack and sets correct current file handle |
|
796 |
|
797 Parameters: None |
|
798 |
|
799 Return Values: None |
|
800 |
|
801 Errors/Exceptions: None |
|
802 |
|
803 Status: Proposal |
|
804 |
|
805 ------------------------------------------------------------------------------- |
|
806 */ |
|
807 void CStifFileParser::PopFromFileStack(void) |
|
808 { |
|
809 if(!iFileStack->IsEmpty()) |
|
810 { |
|
811 //Pop from stack |
|
812 iCurrentFile = iFileStack->Pop(); |
|
813 |
|
814 TFileName fn; |
|
815 iCurrentFile->FullName(fn); |
|
816 |
|
817 //And remove from file names array |
|
818 for(TInt i = iFileNames.Count() - 1; i >= 0; i--) |
|
819 { |
|
820 if(fn.CompareF(iFileNames[i]->Des()) == KErrNone) |
|
821 { |
|
822 delete iFileNames[i]; |
|
823 iFileNames.Remove(i); |
|
824 break; |
|
825 } |
|
826 } |
|
827 __TRACE(KInfo, (_L("Closing file [%S]"), &fn)); |
|
828 |
|
829 //Close file |
|
830 iCurrentFile->Close(); |
|
831 delete iCurrentFile; |
|
832 |
|
833 //Set correct current file |
|
834 if(iFileStack->IsEmpty()) |
|
835 { |
|
836 iCurrentFile = &iBaseFile; //base file, because stack is empty |
|
837 } |
|
838 else |
|
839 { |
|
840 iCurrentFile = iFileStack->Last(); |
|
841 } |
|
842 } |
|
843 } |
|
844 |
|
845 /* |
|
846 ------------------------------------------------------------------------------- |
|
847 |
|
848 Class: CStifFileParser |
|
849 |
|
850 Method: PushFileToStack |
|
851 |
|
852 Description: Opens file and pushes it to stack |
|
853 |
|
854 Parameters: TDesc& aFileName in: name of file to open and add to stack |
|
855 |
|
856 Return Values: None |
|
857 |
|
858 Errors/Exceptions: None |
|
859 |
|
860 Status: Proposal |
|
861 |
|
862 ------------------------------------------------------------------------------- |
|
863 */ |
|
864 void CStifFileParser::PushFileToStackL(const TDesC& aFileName) |
|
865 { |
|
866 |
|
867 //First check if file is not already included |
|
868 for(TInt i = 0; i < iFileNames.Count(); i++) |
|
869 { |
|
870 if(aFileName.CompareF(iFileNames[i]->Des()) == KErrNone) |
|
871 { |
|
872 __TRACE(KError, (_L("File [%S] was already included. Ignoring"), &aFileName)); |
|
873 return; |
|
874 } |
|
875 } |
|
876 |
|
877 //Open and add file to stack |
|
878 RFile *nf = new RFile(); |
|
879 |
|
880 __TRACE(KInfo, (_L("Including file [%S]"), &aFileName)); |
|
881 TInt r = nf->Open(iFileServer, aFileName, EFileRead | EFileShareAny); |
|
882 if(r == KErrNone) |
|
883 { |
|
884 //Add to stack |
|
885 iFileStack->PushL(nf); |
|
886 |
|
887 //And add to file names array |
|
888 HBufC* newFile = aFileName.AllocLC(); |
|
889 User::LeaveIfError(iFileNames.Append(newFile)); |
|
890 CleanupStack::Pop(newFile); |
|
891 |
|
892 //Set valid pointer of current file |
|
893 iCurrentFile = nf; |
|
894 } |
|
895 else |
|
896 { |
|
897 __TRACE(KError, (_L("Could not open file [%S]. Error %d. Ignoring"), &aFileName, r)); |
|
898 } |
|
899 } |
|
900 |
|
901 /* |
|
902 ------------------------------------------------------------------------------- |
|
903 |
|
904 Class: CStifFileParser |
|
905 |
|
906 Method: ClearSectionLinesArray |
|
907 |
|
908 Description: Deletes all descriptors assigned to array and empties array |
|
909 |
|
910 Parameters: None |
|
911 |
|
912 Return Values: None |
|
913 |
|
914 Errors/Exceptions: None |
|
915 |
|
916 Status: Proposal |
|
917 |
|
918 ------------------------------------------------------------------------------- |
|
919 */ |
|
920 void CStifFileParser::ClearSectionLinesArray(void) |
|
921 { |
|
922 while(iSectionLines.Count() > 0) |
|
923 { |
|
924 delete iSectionLines[0]; |
|
925 iSectionLines.Remove(0); |
|
926 } |
|
927 } |
|
928 |
|
929 // End of File |