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diff --git a/experimental/tqtinterface/qt4/src/widgets/tqsyntaxhighlighter_p.h b/experimental/tqtinterface/qt4/src/widgets/tqsyntaxhighlighter_p.h
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+/****************************************************************************
+**
+** Definition of the internal TQSyntaxHighlighterInternal class
+**
+** Created : 031111
+**
+** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA.
+**
+** This file is part of the widgets module of the TQt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free TQt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
+** included in the packaging of this file.  Licensees holding valid TQt
+** Commercial licenses may use this file in accordance with the TQt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#ifndef TQSYNTAXHIGHLIGHTER_P_H
+#define TQSYNTAXHIGHLIGHTER_P_H
+
+#ifndef TQT_NO_SYNTAXHIGHLIGHTER
+#include "tqsyntaxhighlighter.h"
+#include "private/tqrichtext_p.h"
+
+class TQSyntaxHighlighterPrivate
+{
+public:
+    TQSyntaxHighlighterPrivate() :
+	currentParagraph( -1 )
+	{}
+
+    int currentParagraph;
+};
+
+class TQSyntaxHighlighterInternal : public TQTextPreProcessor
+{
+public:
+    TQSyntaxHighlighterInternal( TQSyntaxHighlighter *h ) : highlighter( h ) {}
+    void process( TQTextDocument *doc, TQTextParagraph *p, int, bool tqinvalidate ) {
+	if ( p->prev() && p->prev()->endState() == -1 )
+	    process( doc, p->prev(), 0, FALSE );
+
+	highlighter->para = p;
+	TQString text = p->string()->toString();
+	int endState = p->prev() ? p->prev()->endState() : -2;
+	int oldEndState = p->endState();
+	highlighter->d->currentParagraph = p->paragId();
+	p->setEndState( highlighter->highlightParagraph( text, endState ) );
+	highlighter->d->currentParagraph = -1;
+	highlighter->para = 0;
+
+	p->setFirstPreProcess( FALSE );
+	TQTextParagraph *op = p;
+	p = p->next();
+	if ( (!!oldEndState || !!op->endState()) && oldEndState != op->endState() &&
+	     tqinvalidate && p && !p->firstPreProcess() && p->endState() != -1 ) {
+	    while ( p ) {
+		if ( p->endState() == -1 )
+		    return;
+		p->setEndState( -1 );
+		p = p->next();
+	    }
+	}
+    }
+    TQTextFormat *format( int ) { return 0; }
+
+private:
+    TQSyntaxHighlighter *highlighter;
+
+    friend class TQTextEdit;
+};
+
+#endif // TQT_NO_SYNTAXHIGHLIGHTER
+#endif // TQSYNTAXHIGHLIGHTER_P_H