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