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   1  /**********************************************************************
   2  **   Copyright (C) 2000 Trolltech AS.  All rights reserved.
   3  **
   4  **   proparser.cpp
   5  **
   6  **   This file is part of Qt Linguist.
   7  **
   8  **   See the file LICENSE included in the distribution for the usage
   9  **   and distribution terms.
  10  **
  11  **   The file is provided AS IS with NO WARRANTY OF ANY KIND,
  12  **   INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR
  13  **   A PARTICULAR PURPOSE.
  14  **
  15  **********************************************************************/
  16  
  17  #include <qregexp.h>
  18  #include <qstringlist.h>
  19  
  20  #include "proparser.h"
  21  
  22  QMap<QString, QString> proFileTagMap( const QString& text )
  23  {
  24      QString t = text;
  25  
  26      /*
  27        Strip comments, merge lines ending with backslash, add
  28        spaces around '=' and '+=', replace '\n' with ';', and
  29        simplify white spaces.
  30      */
  31      t.replace( QRegExp(QString("#[^\n]$")), QString(" ") );
  32      t.replace( QRegExp(QString("\\\\\\s*\n")), QString(" ") );
  33      t.replace( QRegExp(QString("=")), QString(" = ") );
  34      t.replace( QRegExp(QString("\\+ =")), QString(" += ") );
  35      t.replace( QRegExp(QString("\n")), QString(";") );
  36      t = t.simplifyWhiteSpace();
  37  
  38      QMap<QString, QString> tagMap;
  39  
  40      QStringList lines = QStringList::split( QChar(';'), t );
  41      QStringList::Iterator line;
  42      for ( line = lines.begin(); line != lines.end(); ++line ) {
  43      QStringList toks = QStringList::split( QChar(' '), *line );
  44  
  45          if ( toks.count() >= 3 && 
  46               (toks[1] == QString("=") || toks[1] == QString("+=")) ) {
  47              QString tag = toks.first();
  48          int k = tag.findRev( QChar(':') ); // as in 'unix:'
  49          if ( k != -1 )
  50          tag = tag.mid( k + 1 );
  51              toks.remove( toks.begin() );
  52  
  53              QString action = toks.first();
  54              toks.remove( toks.begin() );
  55  
  56              if ( tagMap.contains(tag) ) {
  57                  if ( action == QString("=") )
  58                      tagMap.replace( tag, toks.join(QChar(' ')) );
  59                  else
  60                      tagMap[tag] += QChar( ' ' ) + toks.join( QChar(' ') );
  61              } else {
  62                  tagMap[tag] = toks.join( QChar(' ') );
  63          }
  64          }
  65      }
  66  
  67      QRegExp var( "\\$\\$[a-zA-Z0-9_]+" );
  68      QMap<QString, QString>::Iterator it;
  69      for ( it = tagMap.begin(); it != tagMap.end(); ++it ) {
  70          int i = 0;
  71  
  72          while ( (i = var.search(it.data(), i)) != -1 ) {
  73          int len = var.matchedLength();
  74              (*it).replace( i, len, tagMap[(*it).mid(i + 2, len - 2)] );
  75      }
  76      }
  77      return tagMap;
  78  }