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diff --git a/src/pattern.h b/src/pattern.h
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+/***************************************************************************
+ *   kio-locate: KDE I/O Slave for the locate command                      *
+ *                                                                         *
+ *   Copyright (C) 2005 by Tobi Vollebregt                                 *
+ *   tobivollebregt@gmail.com                                              *
+ *                                                                         *
+ *   Thanks to Google's Summer Of Code Program!                            *
+ *                                                                         *
+ *   Copyright (C) 2004 by Armin Straub                                    *
+ *   linux@arminstraub.de                                                  *
+ *                                                                         *
+ *   This program was initially written by Michael Schuerig.               *
+ *   Although I have completely rewritten it, most ideas are adopted       *
+ *   from his original work.                                               *
+ *                                                                         *
+ *   Copyright (C) 2002 by Michael Schuerig                                *
+ *   michael@schuerig.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.                                   *
+ ***************************************************************************/
+
+#ifndef PATTERN_H
+#define PATTERN_H
+
+#include <qregexp.h>
+#include <qstring.h>
+#include <qvaluelist.h>
+
+/**
+ * Regular Expression adapted to the needs of kio-locate.
+ */
+class LocateRegExp
+{
+public:
+	/**
+	 * Constructor
+	 * @param pattern the pattern to start with
+	 * @param ignoreCase specifies, if the search should be case sensitive
+	 */
+	LocateRegExp(const QString& pattern, bool ignoreCase = false);
+	LocateRegExp();
+
+	virtual ~LocateRegExp();
+
+	/**
+	 * Determines whether a file name is matching this regular expression.
+	 * @param file the filename to match
+	 */
+	virtual bool isMatching(const QString& file) const;
+
+	/**
+	 * @return The position of the last match.
+	 */
+	virtual int getMatchPosition() const;
+
+	/**
+	 * @return The length of the last match.
+	 */
+	virtual int getMatchedLength() const;
+
+	/**
+	 * Set the pattern.
+	 * @param pattern the pattern to search for. It may be prepended by an
+	 * exclamation mark, to invert its meaning.
+	 */
+	virtual void setPattern(const QString& pattern);
+
+	/**
+	 * Get the pattern.
+	 * @return search pattern
+	 */
+	virtual QString getPattern() const;
+
+ private:
+	bool m_negated;
+	bool m_ignoreCase;
+	QRegExp m_regExp;
+	QString m_pattern;
+};
+
+/**
+ * List of regular expressions
+ */
+class LocateRegExpList: public QValueList<LocateRegExp>
+{
+ public:
+	virtual ~LocateRegExpList();
+
+	/**
+	 * Converts a stringlist into a regexplist.
+	 * @param list the stringlist to convert
+	 */
+	LocateRegExpList& operator = (const QStringList& list);
+
+	/**
+	 * Determines whether a file name is matching at least one regular
+	 * expression in the list.
+	 * @param file the filename to match
+	 */
+	virtual bool isMatchingOne(const QString& file) const;
+
+	/**
+	 * Determines whether a file name is matching all regular expressions
+	 * in the list.
+	 * @param file the filename to match
+	 */
+	virtual bool isMatchingAll(const QString& file) const;
+};
+
+#endif