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/***************************************************************************
* Copyright (C) 2004-2009 by Thomas Fischer *
* fischer@unix-ag.uni-kl.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. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <qregexp.h>
#include "encoderxml.h"
namespace BibTeX
{
EncoderXML *encoderXML = NULL;
static const struct EncoderXMLCharMapping
{
const char *regexp;
unsigned int unicode;
const char *latex;
}
charmappingdataxml[] =
{
{"&", 0x0026, "&"},
{"<", 0x003C, "<"},
{">", 0x003E, ">"}
};
static const int charmappingdataxmlcount = sizeof( charmappingdataxml ) / sizeof( charmappingdataxml[ 0 ] ) ;
EncoderXML::EncoderXML()
: Encoder()
{
buildCharMapping();
}
EncoderXML::~EncoderXML()
{
// nothing
}
QString EncoderXML::decode( const QString &text )
{
QString result = text;
for ( QValueList<CharMappingItem>::ConstIterator it = m_charMapping.begin(); it != m_charMapping.end(); ++it )
result.replace(( *it ).regExp, ( *it ).unicode );
/**
* Find and replace all characters written as hexadecimal number
*/
int p = -1;
while (( p = result.find( "&#x", p + 1 ) ) >= 0 )
{
int p2 = result.find( ";", p + 1 );
if ( p2 < 0 ) break;
bool ok = FALSE;
int hex = result.mid( p + 3, p2 - p - 3 ).toInt( &ok, 16 );
if ( ok && hex > 0 )
result.replace( result.mid( p, p2 - p + 1 ), QChar( hex ) );
}
/**
* Find and replace all characters written as decimal number
*/
p = -1;
while (( p = result.find( "&#", p + 1 ) ) >= 0 )
{
int p2 = result.find( ";", p + 1 );
if ( p2 < 0 ) break;
bool ok = FALSE;
int dec = result.mid( p + 2, p2 - p - 2 ).toInt( &ok, 10 );
if ( ok && dec > 0 )
result.replace( result.mid( p, p2 - p + 1 ), QChar( dec ) );
}
return result;
}
QString EncoderXML::encode( const QString &text )
{
QString result = text;
for ( QValueList<CharMappingItem>::ConstIterator it = m_charMapping.begin(); it != m_charMapping.end(); ++it )
result.replace(( *it ).unicode, ( *it ).latex );
return result;
}
QString EncoderXML::encodeSpecialized( const QString &text, const EntryField::FieldType /* fieldType */ )
{
return encode( text );
}
void EncoderXML::buildCharMapping()
{
for ( int i = 0; i < charmappingdataxmlcount; i++ )
{
CharMappingItem charMappingItem;
charMappingItem.regExp = QRegExp( charmappingdataxml[ i ].regexp );
charMappingItem.unicode = QChar( charmappingdataxml[ i ].unicode );
charMappingItem.latex = QString( charmappingdataxml[ i ].latex );
m_charMapping.append( charMappingItem );
}
}
EncoderXML *EncoderXML::currentEncoderXML()
{
if ( encoderXML == NULL )
encoderXML = new EncoderXML();
return encoderXML;
}
}
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