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1 /* |
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2 * Copyright (c) 2002 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: Argument parser |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 // INCLUDE FILES |
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21 #include "argstest.h" |
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22 |
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23 // EXTERNAL DATA STRUCTURES |
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24 // none |
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25 |
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26 // EXTERNAL FUNCTION PROTOTYPES |
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27 // none |
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28 |
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29 // CONSTANTS |
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30 // none |
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31 |
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32 // MACROS |
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33 // none |
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34 |
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35 // LOCAL CONSTANTS AND MACROS |
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36 // none |
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37 |
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38 // MODULE DATA STRUCTURES |
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39 // none |
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40 |
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41 // LOCAL FUNCTION PROTOTYPES |
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42 // none |
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43 |
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44 // FORWARD DECLARATIONS |
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45 // none |
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46 |
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47 // ============================= LOCAL FUNCTIONS =============================== |
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48 |
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49 // none |
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50 |
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51 // ============================ MEMBER FUNCTIONS =============================== |
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52 |
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53 // ----------------------------------------------------------------------------- |
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54 // CArgs::CArgs |
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55 // C++ default constructor can NOT contain any code, that |
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56 // might leave. |
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57 // ----------------------------------------------------------------------------- |
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58 // |
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59 EXPORT_C CArgs::CArgs() |
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60 { |
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61 } |
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62 |
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63 // Destructor |
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64 EXPORT_C CArgs::~CArgs() |
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65 { |
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66 |
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67 ClearArgs(); |
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68 |
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69 } |
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70 |
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71 // ----------------------------------------------------------------------------- |
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72 // CArgs::ArgCount |
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73 // Returns count of parsed arguments |
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74 // ----------------------------------------------------------------------------- |
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75 // |
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76 EXPORT_C TInt CArgs::ArgCount() const |
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77 { |
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78 |
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79 return iArgCount; |
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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 // CArgs::ArgType |
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85 // Returns type of argument (string/numeric) |
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86 // ----------------------------------------------------------------------------- |
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87 // |
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88 EXPORT_C TArgType CArgs::ArgType( const TInt aArgIndex ) const |
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89 { |
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90 |
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91 if ( aArgIndex < 1 || aArgIndex > iArgCount ) |
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92 { |
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93 return EArgNotSpecified; |
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94 } |
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95 else |
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96 { |
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97 return iArgType[aArgIndex - 1]; |
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98 } |
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99 |
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100 } |
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101 |
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102 // ----------------------------------------------------------------------------- |
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103 // CArgs::NumArg |
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104 // Returns argument value as TInt |
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105 // ----------------------------------------------------------------------------- |
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106 // |
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107 EXPORT_C TInt CArgs::NumArg( const TInt aArgIndex ) const |
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108 { |
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109 |
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110 if ( aArgIndex < 1 || |
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111 aArgIndex > iArgCount || |
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112 iArgType[aArgIndex - 1] != EArgNum ) |
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113 { |
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114 return 0; |
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115 } |
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116 else |
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117 { |
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118 return iNumArg[aArgIndex - 1]; |
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119 } |
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120 |
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121 } |
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122 |
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123 // ----------------------------------------------------------------------------- |
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124 // CArgs::StrArg |
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125 // Returns argument value as string |
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126 // ----------------------------------------------------------------------------- |
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127 // |
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128 EXPORT_C const TDesC& CArgs::StrArg( const TInt aArgIndex ) const |
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129 { |
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130 |
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131 if ( aArgIndex < 1 || aArgIndex > iArgCount ) |
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132 { |
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133 return KNullDesC; |
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134 } |
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135 else |
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136 { |
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137 return *iStrArg[aArgIndex - 1]; |
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138 } |
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139 |
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140 } |
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141 |
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142 // ----------------------------------------------------------------------------- |
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143 // CArgs::ParseLineL |
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144 // Parses arguments from a string |
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145 // ----------------------------------------------------------------------------- |
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146 // |
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147 EXPORT_C TInt CArgs::ParseLineL( |
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148 const TParseType aType, |
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149 const TDes& aLine ) |
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150 { |
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151 |
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152 TBuf<1024> line; |
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153 line.Append( aLine ); |
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154 |
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155 ClearArgs(); |
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156 |
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157 switch ( aType ) |
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158 { |
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159 case EParseComment: |
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160 |
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161 line.Trim(); |
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162 |
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163 // if line starts with "//" |
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164 // |
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165 if ( line.Length() >= 2 && |
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166 line[0] == static_cast< TInt >( TChar( '/' ) ) && |
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167 line[1] == static_cast< TInt >( TChar( '/' ) ) ) |
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168 { |
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169 return KErrNone; |
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170 } |
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171 break; |
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172 |
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173 case EParseFunction: |
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174 |
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175 TInt posDot = line.Locate( '.' ); |
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176 posDot = -1; // Messes stuff in case of ip addresses |
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177 TInt posBraceOpen = line.Locate( '(' ); |
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178 |
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179 if ( posBraceOpen == -1 ) |
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180 { |
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181 return KErrArgument; |
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182 } |
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183 |
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184 iArgType[0] = EArgStr; |
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185 iArgType[1] = EArgStr; |
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186 |
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187 // read classname and methodname: "class.method(" |
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188 // |
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189 if ( posDot != -1 && posDot < posBraceOpen ) |
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190 { |
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191 iStrArg[0] = HBufC::NewL( posDot ); |
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192 iStrArg[0]->Des().Append( line.Ptr(), posDot ); |
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193 iStrArg[0]->Des().Trim(); |
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194 iStrArg[1] = HBufC::NewL( posBraceOpen - posDot ); |
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195 iStrArg[1]->Des().Append( line.Ptr() + posDot + 1, |
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196 posBraceOpen - ( posDot + 1 ) ); |
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197 iStrArg[1]->Des().Trim(); |
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198 } |
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199 else // only methodname: "method(" |
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200 { |
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201 iStrArg[0] = HBufC::NewL( 0 ); |
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202 iStrArg[1] = HBufC::NewL( posBraceOpen ); |
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203 iStrArg[1]->Des().Append( line.Ptr(), posBraceOpen ); |
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204 iStrArg[1]->Des().Trim(); |
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205 } |
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206 |
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207 iArgCount = 2; |
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208 |
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209 // remove "class.method(" or "method(" from line |
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210 // |
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211 line.Delete( 0, posBraceOpen + 1 ); |
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212 line.Trim(); |
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213 |
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214 // parse arguments |
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215 // |
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216 while ( line.Length() > 0 ) |
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217 { |
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218 line.Trim(); |
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219 TInt pos = line.Locate( '"' ); |
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220 |
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221 // string |
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222 // |
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223 if ( pos == 0 ) |
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224 { |
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225 line.Delete( 0, 1 ); |
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226 pos = line.Locate( '"' ); |
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227 if ( pos == -1 ) |
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228 { |
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229 return KErrArgument; |
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230 } |
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231 |
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232 iArgType[iArgCount] = EArgStr; |
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233 iStrArg[iArgCount] = HBufC::NewL( pos ); |
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234 iStrArg[iArgCount]->Des().Append( line.Ptr(), pos ); |
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235 iArgCount++; |
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236 line.Delete( 0, pos + 1 ); |
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237 line.Trim(); |
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238 |
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239 // remove possible comma |
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240 // |
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241 if ( line.Locate( ',' ) == 0 ) |
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242 { |
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243 line.Delete( 0, 1 ); |
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244 line.Trim(); |
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245 } |
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246 } |
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247 |
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248 else // numeric? or enum value |
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249 { |
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250 pos = line.Locate( ',' ); |
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251 if ( pos == -1 ) |
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252 { |
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253 pos = line.Locate( ')' ); |
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254 if ( pos == -1 ) |
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255 { |
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256 return KErrArgument; |
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257 } |
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258 else if ( pos == 0 ) |
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259 { |
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260 break; |
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261 } |
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262 } |
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263 |
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264 iArgType[iArgCount] = EArgStr; |
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265 iStrArg[iArgCount] = HBufC::NewL( pos ); |
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266 iStrArg[iArgCount]->Des().Append( line.Ptr(), pos ); |
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267 iStrArg[iArgCount]->Des().Trim(); |
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268 iArgCount++; |
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269 line.Delete( 0, pos + 1 ); |
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270 line.Trim(); |
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271 |
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272 // len must be > 0 |
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273 // |
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274 if ( iStrArg[iArgCount-1]->Length() == 0 ) |
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275 { |
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276 return KErrArgument; |
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277 } |
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278 |
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279 TBool isNum = ETrue; |
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280 TBool isNegative = EFalse; |
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281 TInt numVal = 0; |
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282 |
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283 // check if argument is numeric -> [-]n(0-9) |
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284 // |
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285 for ( pos=0; pos < iStrArg[iArgCount - 1]->Length(); pos++ ) |
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286 { |
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287 if ( pos == 0 && |
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288 iStrArg[iArgCount - 1]->Locate( '-' ) == 0 ) |
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289 { |
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290 isNegative = ETrue; |
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291 // if number is negative, len must be >= 2 |
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292 // |
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293 if ( iStrArg[iArgCount - 1]->Length() < 2 ) |
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294 { |
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295 isNum = EFalse; |
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296 break; |
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297 } |
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298 } |
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299 else |
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300 { |
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301 TInt number; |
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302 |
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303 if ( (*iStrArg[iArgCount - 1])[pos] == |
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304 static_cast< TInt >( TChar( '0' ) ) ) number = 0; |
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305 else if ( (*iStrArg[iArgCount - 1])[pos] == |
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306 static_cast< TInt >( TChar( '1' ) ) ) number = 1; |
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307 else if ( (*iStrArg[iArgCount - 1])[pos] == |
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308 static_cast< TInt >( TChar( '2' ) ) ) number = 2; |
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309 else if ( (*iStrArg[iArgCount - 1])[pos] == |
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310 static_cast< TInt >( TChar( '3' ) ) ) number = 3; |
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311 else if ( (*iStrArg[iArgCount - 1])[pos] == |
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312 static_cast< TInt >( TChar( '4' ) ) ) number = 4; |
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313 else if ( (*iStrArg[iArgCount - 1])[pos] == |
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314 static_cast< TInt >( TChar( '5' ) ) ) number = 5; |
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315 else if ( (*iStrArg[iArgCount - 1])[pos] == |
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316 static_cast< TInt >( TChar( '6' ) ) ) number = 6; |
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317 else if ( (*iStrArg[iArgCount - 1])[pos] == |
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318 static_cast< TInt >( TChar( '7' ) ) ) number = 7; |
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319 else if ( (*iStrArg[iArgCount - 1])[pos] == |
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320 static_cast< TInt >( TChar( '8' ) ) ) number = 8; |
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321 else if ( (*iStrArg[iArgCount - 1])[pos] == |
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322 static_cast< TInt >( TChar( '9' ) ) ) number = 9; |
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323 else |
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324 { |
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325 isNum = EFalse; |
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326 break; |
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327 } |
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328 numVal = (numVal * 10) + number; |
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329 } |
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330 } |
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331 |
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332 // argument is numeric |
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333 // |
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334 if ( isNum ) |
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335 { |
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336 if ( isNegative ) |
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337 { |
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338 numVal = -numVal; |
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339 } |
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340 |
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341 iNumArg[iArgCount - 1] = numVal; |
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342 iArgType[iArgCount - 1] = EArgNum; |
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343 } |
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344 |
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345 } // else |
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346 |
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347 } // while |
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348 |
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349 return KErrNone; |
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350 |
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351 } // switch |
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352 |
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353 return KErrArgument; |
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354 |
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355 } |
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356 |
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357 // ----------------------------------------------------------------------------- |
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358 // CArgs::ClearArgs |
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359 // Clears all parsed arguments and frees allocated memory |
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360 // ----------------------------------------------------------------------------- |
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361 // |
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362 void CArgs::ClearArgs() |
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363 { |
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364 |
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365 for ( TInt i = 0; i < iArgCount; i++ ) |
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366 { |
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367 delete iStrArg[i]; |
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368 } |
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369 |
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370 iArgCount = 0; |
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371 |
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372 } |
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373 |
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374 // ========================== OTHER EXPORTED FUNCTIONS ========================= |
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375 |
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376 #if defined(__WINS__) && !defined(EKA2) |
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377 |
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378 // ----------------------------------------------------------------------------- |
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379 // E32Dll |
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380 // |
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381 // DLL entry point function. In a MARM implementation, the |
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382 // entry point is called when a thread is attached to or detached from the |
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383 // DLL.?description |
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384 // |
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385 // Returns: TInt: For DLLs which do not set up thread-local storage, |
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386 // the function can ignore the TDllReason type |
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387 // parameter passed to it and simply return KErrNone; |
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388 // ----------------------------------------------------------------------------- |
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389 // |
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390 |
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391 GLDEF_C TInt E32Dll( TDllReason /*aReason*/ ) |
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392 { |
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393 |
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394 return KErrNone; |
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395 |
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396 } |
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397 |
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398 #endif |
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399 |
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400 // End of File |