okular/generators/dvi/dvisourcesplitter.cpp

   1 // -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; c-brace-offset: 0; -*-
   2 //
   3 // C++ Implementation: dvisourcesplitter
   4 //
   5 // Author: Jeroen Wijnhout <Jeroen.Wijnhout@kdemail.net>, (C) 2004
   6 //
   7 // Copyright: See COPYING file that comes with this distribution
   8 //
   9
  10 #include <config.h>
  11
  12 #include "dvisourcesplitter.h"
  13 #include "kvs_debug.h"
  14
  15 #include <QDir>
  16
  17 //#define DEBUG_SOURCESPLITTER
  18
  19
  20 DVI_SourceFileSplitter::DVI_SourceFileSplitter(const QString &srclink, const QString &dviFile)
  21 {
  22   QString filepart = srclink, linepart;
  23   // if sourcefilename starts with a number
  24   // then there could be a mix up, i.e. src:123file.tex
  25   // line 123 and file.tex or line 12 and 3file.tex?
  26   bool possibleNumberMixUp = false;
  27
  28 #ifdef DEBUG_SOURCESPLITTER
  29   kDebug(kvs::dvi) << "DVI_SourceSplitter: srclink " << srclink;
  30 #endif
  31
  32   //remove src: if necessary
  33   if ( filepart.left(4) == "src:" ) filepart = srclink.mid(4);
  34
  35   //split first
  36   quint32 max = filepart.length(), i = 0;
  37   for(i=0; i<max; ++i) if ( !filepart[i].isDigit()) break;
  38   linepart = filepart.left(i);
  39   filepart = filepart.mid(i);
  40
  41   //check for number mix up
  42   if ( filepart[0] != ' ' && (linepart.length() != 1) ) possibleNumberMixUp = true;
  43
  44   //remove a spaces
  45   filepart = filepart.trimmed();
  46   linepart = linepart.trimmed();
  47
  48 #ifdef DEBUG_SOURCESPLITTER
  49   kDebug(kvs::dvi) << "DVI_SourceSplitter: filepart " << filepart << " linepart " << linepart;
  50 #endif
  51
  52   //test if the file exists
  53   m_fileInfo.setFile(QFileInfo(dviFile).absoluteDir(), filepart);
  54   bool fiExists = m_fileInfo.exists();
  55
  56   //if it doesn't exist, but adding ".tex"
  57   if ( !fiExists && QFileInfo(m_fileInfo.absoluteFilePath() + ".tex").exists() )
  58     m_fileInfo.setFile(m_fileInfo.absoluteFilePath() + ".tex");
  59
  60   //if that doesn't help either, perhaps the file started with a
  61   //number: move the numbers from the sourceline to the filename
  62   //one by one (also try to add .tex repeatedly)
  63   if ( possibleNumberMixUp && !fiExists )
  64   {
  65     QFileInfo tempInfo(m_fileInfo);
  66     QString tempFileName = tempInfo.fileName();
  67     quint32 index, maxindex = linepart.length();
  68     bool found = false;
  69     for ( index = 1; index < maxindex; ++index)
  70     {
  71       tempInfo.setFile(linepart.right(index) + tempFileName);
  72 #ifdef DEBUG_SOURCESPLITTER
  73       kDebug(kvs::dvi) << "DVI_SourceSplitter: trying " << tempInfo.fileName();
  74 #endif
  75       if ( tempInfo.exists() ) { found = true; break;}
  76       tempInfo.setFile(linepart.right(index) + tempFileName + ".tex");
  77 #ifdef DEBUG_SOURCESPLITTER
  78       kDebug(kvs::dvi) << "DVI_SourceSplitter: trying " << tempInfo.fileName();
  79 #endif
  80       if ( tempInfo.exists() ) { found = true; break;}
  81     }
  82
  83     if (found)
  84     {
  85       m_fileInfo = tempInfo;
  86       linepart = linepart.left(maxindex - index);
  87     }
  88   }
  89
  90   bool ok;
  91   m_line = linepart.toInt(&ok);
  92   if (!ok) m_line = 0;
  93
  94 #ifdef DEBUG_SOURCESPLITTER
  95   kDebug(kvs::dvi) << "DVI_SourceSplitter: result: file " << m_fileInfo.absoluteFilePath() << " line " << m_line;
  96 #endif
  97 }