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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the qt3to4 porting application of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include "proparser.h" |
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43 |
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44 #include <QDir> |
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45 #include <QFile> |
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46 #include <QFileInfo> |
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47 #include <QRegExp> |
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48 #include <QStringList> |
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49 #include <QTextStream> |
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50 |
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51 #ifdef Q_OS_UNIX |
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52 #include <unistd.h> |
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53 #endif |
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54 |
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55 #ifdef Q_OS_WIN32 |
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56 #define QT_POPEN _popen |
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57 #else |
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58 #define QT_POPEN popen |
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59 #endif |
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60 |
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61 QT_BEGIN_NAMESPACE |
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62 |
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63 QString loadFile( const QString &fileName ) |
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64 { |
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65 QFile file( fileName ); |
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66 if ( !file.open(QIODevice::ReadOnly) ) { |
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67 fprintf( stderr, "error: Cannot load '%s': %s\n", |
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68 file.fileName().toLocal8Bit().constData(), |
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69 file.errorString().toLatin1().constData() ); |
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70 return QString(); |
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71 } |
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72 |
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73 QTextStream in( &file ); |
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74 return in.readAll(); |
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75 } |
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76 |
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77 QMap<QString, QString> proFileTagMap( const QString& text, QString currentPath ) |
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78 { |
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79 QString t = text; |
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80 if (currentPath.isEmpty()) |
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81 currentPath = QDir::currentPath(); |
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82 |
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83 |
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84 QMap<QString, QString> tagMap; |
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85 /* |
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86 Strip any commments before we try to include. We |
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87 still need to do it after we include to make sure the |
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88 included file does not have comments |
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89 */ |
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90 t.replace( QRegExp(QLatin1String("#[^\n]*\n")), QLatin1String(" ") ); |
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91 /* |
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92 Strip comments, merge lines ending with backslash, add |
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93 spaces around '=' and '+=', replace '\n' with ';', and |
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94 simplify white spaces. |
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95 */ |
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96 t.replace( QRegExp(QLatin1String("#[^\n]*\n")), QLatin1String(" ") ); |
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97 t.replace( QRegExp(QLatin1String("\\\\[^\n\\S]*\n")), QLatin1String(" ") ); |
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98 t.replace( QLatin1String("="), QLatin1String(" = ") ); |
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99 t.replace( QLatin1String("+ ="), QLatin1String(" += ") ); |
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100 t.replace( QLatin1String("\n"), QLatin1String(";") ); |
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101 t = t.simplified(); |
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102 |
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103 /* |
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104 Populate tagMap with 'key = value' entries. |
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105 */ |
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106 QStringList lines = t.split(QLatin1Char(';')); |
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107 QStringList::Iterator line; |
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108 for ( line = lines.begin(); line != lines.end(); ++line ) { |
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109 QStringList toks = (*line).split(QLatin1Char(' '), QString::SkipEmptyParts); |
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110 |
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111 if ( toks.count() >= 3 && |
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112 (toks[1] == QLatin1String("=") || toks[1] == QLatin1String("+=") || |
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113 toks[1] == QLatin1String("*=")) ) { |
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114 QString tag = toks.first(); |
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115 int k = tag.lastIndexOf( QLatin1Char(':') ); // as in 'unix:' |
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116 if ( k != -1 ) |
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117 tag = tag.mid( k + 1 ); |
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118 toks.erase( toks.begin() ); |
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119 |
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120 QString action = toks.first(); |
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121 toks.erase( toks.begin() ); |
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122 |
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123 if ( tagMap.contains(tag) ) { |
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124 if ( action == QLatin1String("=") ) |
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125 tagMap.insert( tag, toks.join(QLatin1String(" ")) ); |
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126 else |
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127 tagMap[tag] += QLatin1Char( ' ' ) + toks.join( QLatin1String(" ") ); |
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128 } else { |
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129 tagMap[tag] = toks.join( QLatin1String(" ") ); |
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130 } |
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131 } |
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132 } |
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133 /* |
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134 Expand $$variables within the 'value' part of a 'key = value' |
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135 pair. |
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136 */ |
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137 QRegExp var( QLatin1String("\\$\\$[({]?([a-zA-Z0-9_]+)[)}]?") ); |
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138 QMap<QString, QString>::Iterator it; |
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139 for ( it = tagMap.begin(); it != tagMap.end(); ++it ) { |
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140 int i = 0; |
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141 while ( (i = var.indexIn((*it), i)) != -1 ) { |
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142 int len = var.matchedLength(); |
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143 QString invocation = var.cap(1); |
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144 QString after; |
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145 |
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146 if ( invocation == QLatin1String("system") ) { |
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147 // skip system(); it will be handled in the next pass |
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148 ++i; |
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149 } else { |
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150 if ( tagMap.contains(invocation) ) |
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151 after = tagMap[invocation]; |
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152 else if (invocation.toLower() == QLatin1String("pwd")) |
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153 after = currentPath; |
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154 (*it).replace( i, len, after ); |
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155 i += after.length(); |
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156 } |
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157 } |
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158 } |
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159 |
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160 /* |
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161 Execute system() calls. |
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162 */ |
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163 QRegExp callToSystem( QLatin1String("\\$\\$system\\s*\\(([^()]*)\\)") ); |
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164 for ( it = tagMap.begin(); it != tagMap.end(); ++it ) { |
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165 int i = 0; |
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166 while ( (i = callToSystem.indexIn((*it), i)) != -1 ) { |
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167 /* |
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168 This code is stolen from qmake's project.cpp file. |
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169 Ideally we would use the same parser, so we wouldn't |
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170 have this code duplication. |
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171 */ |
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172 QString after; |
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173 char buff[256]; |
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174 FILE *proc = QT_POPEN( callToSystem.cap(1).toLatin1().constData(), "r" ); |
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175 while ( proc && !feof(proc) ) { |
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176 int read_in = int(fread( buff, 1, 255, proc )); |
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177 if ( !read_in ) |
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178 break; |
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179 for ( int i = 0; i < read_in; i++ ) { |
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180 if ( buff[i] == '\n' || buff[i] == '\t' ) |
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181 buff[i] = ' '; |
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182 } |
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183 buff[read_in] = '\0'; |
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184 after += QLatin1String(buff); |
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185 } |
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186 (*it).replace( i, callToSystem.matchedLength(), after ); |
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187 i += after.length(); |
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188 } |
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189 } |
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190 return tagMap; |
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191 } |
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192 |
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193 QT_END_NAMESPACE |