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// Copyright (C) 2004 Shintaro Matsuoka <shin@shoegazed.org>
// Copyright (C) 2006 Martin Aumueller <aumuell@reserv.at>
// See COPYING file for licensing information
#ifndef AMAROK_QSTRINGX_H
#define AMAROK_QSTRINGX_H
#include <qglobal.h>
#include <qregexp.h>
#include <qstring.h>
#include <qstringlist.h>
#include <qmap.h>
namespace Amarok
{
class QStringx : public QString
{
public:
QStringx() {};
QStringx( QChar ch ) : QString( ch ) {};
QStringx( const QString& s ) : QString( s ) {};
QStringx( const QByteArray& ba ) : QString( ba ) {};
QStringx( const QChar* unicode, uint length ) : QString( unicode, length ) {};
QStringx( const char* str ) : QString( str ) {};
virtual ~QStringx() {};
// the numbers following % obviously are not taken into account
QString args( const QStringList& args ) const
{
const QStringList text = QStringList::split( QRegExp( "%\\d+" ), *this, true );
QValueListConstIterator<QString> itrText = text.begin();
QValueListConstIterator<QString> itrArgs = args.begin();
QString merged = (*itrText);
++itrText;
while ( itrText != text.end() && itrArgs != args.end() )
{
merged += (*itrArgs) + (*itrText);
++itrText;
++itrArgs;
}
Q_ASSERT( itrText == text.end() && itrArgs == args.end() );
return merged;
}
// %something gets replaced by the value corresponding to key "something" in args
QString namedArgs( const QMap<QString, QString> args, bool opt=false ) const
{
QRegExp rxArg( "%[a-zA-Z0-9]+" );
QString result;
int start = 0;
for( int pos = rxArg.search( *this );
pos != -1;
pos = rxArg.search( *this, start ) )
{
int len = rxArg.matchedLength();
QString p = rxArg.capturedTexts()[0].mid(1, len-1);
result += mid( start, pos-start );
if( args[p] != QString::null )
result += args[p];
else if( opt )
return QString();
start = pos + len;
}
result += mid( start );
return result;
}
// %something gets replaced by the value corresponding to key "something" in args,
// however, if key "something" is not available,
// then replace everything within surrounding { } by an empty string
QString namedOptArgs( const QMap<QString, QString> args ) const
{
QRegExp rxOptArg( "\\{.*%[a-zA-Z0-9_]+.*\\}" );
rxOptArg.setMinimal( true );
QString result;
int start = 0;
for( int pos = rxOptArg.search( *this );
pos != -1;
pos = rxOptArg.search( *this, start ) )
{
int len = rxOptArg.matchedLength();
QStringx opt = rxOptArg.capturedTexts()[0].mid(1, len-2);
result += QStringx(mid( start, pos-start )).namedArgs( args );
result += opt.namedArgs( args, true );
start = pos + len;
}
result += QStringx( mid( start ) ).namedArgs( args );
return result;
}
};
} // namespace Amarok
#endif // AMAROK_QSTRINGX_H
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