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/***************************************************************************
csvfile.h - description
-------------------
begin : Mon Mar 28 2005
copyright : (C) 2005 by Dominik Seichter
email : domseichter@web.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "csvfile.h"
#include "printersettings.h"
#include <tqbuffer.h>
#include <tqtextcodec.h>
CSVFile::CSVFile( const TQString & filename )
{
m_eof = false;
m_csv = true;
m_quote = PrinterSettings::getInstance()->getData()->quote;
m_separator = PrinterSettings::getInstance()->getData()->separator;
m_comment = PrinterSettings::getInstance()->getData()->comment;
m_file.setName( filename );
m_file.open( IO_ReadOnly );
if( m_file.isOpen() )
m_stream.setDevice( &m_file );
}
CSVFile::CSVFile( TQBuffer & buf )
{
m_eof = false;
m_csv = true;
m_quote = PrinterSettings::getInstance()->getData()->quote;
m_separator = PrinterSettings::getInstance()->getData()->separator;
m_comment = PrinterSettings::getInstance()->getData()->comment;
buf.open( IO_ReadOnly );
if( buf.isOpen() )
m_stream.setDevice( &buf );
}
CSVFile::~CSVFile()
{
if( m_stream.device() && m_stream.device()->isOpen() )
m_stream.device()->close();
}
TQStringList CSVFile::readNextLine()
{
TQString line;
if( !m_stream.device() )
return TQStringList();
if( !m_stream.device()->isOpen() )
return TQStringList();
// walk through the lines until a line containing valid data
for( ;; )
{
line = m_stream.readLine();
line = line.stripWhiteSpace();
// check for eof
if( line.isNull() )
{
m_eof = true;
return TQStringList();
}
// ignore comments and empty lines
if( (!m_comment.isEmpty() && line.startsWith( m_comment )) || line.isEmpty() )
continue;
break;
}
return m_csv ? readCsvLine( line ) : readFixedLine( line );
}
TQStringList CSVFile::readCsvLine( const TQString & l )
{
TQString line( l );
TQStringList sections;
unsigned int start = 0;
unsigned int end = 0;
unsigned int len;
bool quoted = false;
bool quote_empty;
// if line does not end with separator, add one
if( !line.endsWith( m_separator ) )
line.append( m_separator );
// we have to handle here the case,
// that the separator is included
// in a quoted field
len = line.length(); // cache for better speed
quote_empty = m_quote.isEmpty();
while( end < len )
{
if( !quote_empty && line.right( len - end ).startsWith( m_quote ) )
quoted = !quoted;
else if( !quoted && line.right( len - end ).startsWith( m_separator ) )
{
sections << removeQuote( line.mid( start, end-start ) );
start = end;
++start;
}
else if( line[end] == '\n' )
break;
++end;
}
return sections;
}
TQStringList CSVFile::readFixedLine( const TQString & line )
{
TQString data( line );
TQStringList list;
for( unsigned int i=0;i<m_width.count();i++ )
{
list << data.left( m_width[i] );
data = data.right( data.length() - m_width[i] );
}
return list;
}
TQString CSVFile::removeQuote( const TQString & text )
{
TQString line = text.stripWhiteSpace();
if( m_quote.isEmpty() )
return text;
if( line.startsWith( m_quote ) )
line = line.right( line.length() - m_quote.length() );
if( line.endsWith( m_quote ) )
line = line.left( line.length() - m_quote.length() );
return line;
}
void CSVFile::setEncoding( const TQString & enc )
{
m_stream.setCodec( TQTextCodec::codecForName( enc.latin1() ) );
}
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