okular/generators/dvi/dvisourcesplitter.cpp
2022-03-09 23:29:56 +01:00

110 lines
3.3 KiB
C++

// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; c-brace-offset: 0; -*-
//
// C++ Implementation: dvisourcesplitter
//
// Author: Jeroen Wijnhout <Jeroen.Wijnhout@kdemail.net>, (C) 2004
//
// Copyright: See COPYING file that comes with this distribution
//
#include <config.h>
#include "debug_dvi.h"
#include "dvisourcesplitter.h"
#include <QDir>
//#define DEBUG_SOURCESPLITTER
DVI_SourceFileSplitter::DVI_SourceFileSplitter(const QString &srclink, const QString &dviFile)
{
QString filepart = srclink, linepart;
// if sourcefilename starts with a number
// then there could be a mix up, i.e. src:123file.tex
// line 123 and file.tex or line 12 and 3file.tex?
bool possibleNumberMixUp = false;
#ifdef DEBUG_SOURCESPLITTER
qCDebug(OkularDviDebug) << "DVI_SourceSplitter: srclink " << srclink;
#endif
// remove src: if necessary
if (filepart.left(4) == QLatin1String("src:")) {
filepart = srclink.mid(4);
}
// split first
quint32 max = filepart.length(), i = 0;
for (i = 0; i < max; ++i) {
if (!filepart[i].isDigit()) {
break;
}
}
linepart = filepart.left(i);
filepart = filepart.mid(i);
// check for number mix up
if (filepart[0] != QLatin1Char(' ') && (linepart.length() != 1)) {
possibleNumberMixUp = true;
}
// remove a spaces
filepart = filepart.trimmed();
linepart = linepart.trimmed();
#ifdef DEBUG_SOURCESPLITTER
qCDebug(OkularDviDebug) << "DVI_SourceSplitter: filepart " << filepart << " linepart " << linepart;
#endif
// test if the file exists
m_fileInfo.setFile(QFileInfo(dviFile).absoluteDir(), filepart);
bool fiExists = m_fileInfo.exists();
// if it doesn't exist, but adding ".tex"
if (!fiExists && QFileInfo::exists(m_fileInfo.absoluteFilePath() + QStringLiteral(".tex"))) {
m_fileInfo.setFile(m_fileInfo.absoluteFilePath() + QStringLiteral(".tex"));
}
// if that doesn't help either, perhaps the file started with a
// number: move the numbers from the sourceline to the filename
// one by one (also try to add .tex repeatedly)
if (possibleNumberMixUp && !fiExists) {
QFileInfo tempInfo(m_fileInfo);
QString tempFileName = tempInfo.fileName();
quint32 index, maxindex = linepart.length();
bool found = false;
for (index = 1; index < maxindex; ++index) {
tempInfo.setFile(linepart.right(index) + tempFileName);
#ifdef DEBUG_SOURCESPLITTER
qCDebug(OkularDviDebug) << "DVI_SourceSplitter: trying " << tempInfo.fileName();
#endif
if (tempInfo.exists()) {
found = true;
break;
}
tempInfo.setFile(linepart.right(index) + tempFileName + QStringLiteral(".tex"));
#ifdef DEBUG_SOURCESPLITTER
qCDebug(OkularDviDebug) << "DVI_SourceSplitter: trying " << tempInfo.fileName();
#endif
if (tempInfo.exists()) {
found = true;
break;
}
}
if (found) {
m_fileInfo = tempInfo;
linepart = linepart.left(maxindex - index);
}
}
bool ok;
m_line = linepart.toInt(&ok);
if (!ok) {
m_line = 0;
}
#ifdef DEBUG_SOURCESPLITTER
qCDebug(OkularDviDebug) << "DVI_SourceSplitter: result: file " << m_fileInfo.absoluteFilePath() << " line " << m_line;
#endif
}