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72 lines
2.4 KiB
72 lines
2.4 KiB
/*
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* Copyright (c) 2002-2003 Jesper K. Pedersen <blackie@kde.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License version 2 as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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**/
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#include "qtregexphighlighter.h"
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#include <tqregexp.h>
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QtRegexpHighlighter::QtRegexpHighlighter( TQTextEdit* editor )
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:RegexpHighlighter( editor ), _editor( editor )
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{
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}
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int QtRegexpHighlighter::highlightParagraph( const TQString & text, int endStateOfLastPara )
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{
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TQRegExp regexp( _regexp );
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regexp.setCaseSensitive( _caseSensitive );
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regexp.setMinimal( _minimal );
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setFormat( 0, text.length(), _editor->font(), TQt::black );
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if ( !regexp.isValid() || regexp.isEmpty() ) {
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return 0;
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}
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// ------------------------------ Process with the regular expression.
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TQColor colors[] = { TQt::red, TQt::blue };
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int color = endStateOfLastPara;
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if ( color < 0 || color > 1 )
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color = 0;
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int index = 0;
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int start, length;
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while ( (index = regexp.search( text, index ) ) != -1 && index < (int) text.length()) {
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if ( regexp.pos(1) != -1 ) {
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start = regexp.pos(1);
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length = regexp.cap(1).length();
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}
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else {
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start = index;
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length = regexp.matchedLength();
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}
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if ( start != index )
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setFormat( index, start-index, colors[color] );
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TQFont font = _editor->font();
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font.setUnderline( true );
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font.setPointSize( (int) (font.pointSize() * 1.3) );
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setFormat( start, length, font, colors[color] );
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if ( length + (start-index) != regexp.matchedLength() )
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setFormat( start+length, regexp.matchedLength()-length-(start-index), colors[color] );
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index += TQMAX( 1, regexp.matchedLength() ); // ensure progress when matching for example ^ or \b
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color = (color+1)%2;
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}
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return color;
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}
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