Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 76 insertions, 0 deletions

diff --git a/indexlib/match.h b/indexlib/match.h
new file mode 100644
index 000000000..568eb3d0d
--- /dev/null
+++ b/indexlib/match.h
@@ -0,0 +1,76 @@
+#ifndef LPC_MATCH_H1105564052_INCLUDE_GUARD_
+#define LPC_MATCH_H1105564052_INCLUDE_GUARD_
+
+/* This file is part of indexlib.
+ * Copyright (C) 2005 Luís Pedro Coelho <luis@luispedro.org>
+ *
+ * Indexlib is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation and available as file
+ * GPL_V2 which is distributed along with indexlib.
+ * 
+ * Indexlib is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA
+ * 
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of this program with any edition of
+ * the Qt library by Trolltech AS, Norway (or with modified versions
+ * of Qt that use the same license as Qt), and distribute linked
+ * combinations including the two.  You must obey the GNU General
+ * Public License in all respects for all of the code used other than
+ * Qt.  If you modify this file, you may extend this exception to
+ * your version of the file, but you are not obligated to do so.  If
+ * you do not wish to do so, delete this exception statement from
+ * your version.
+ */
+
+
+#include <string>
+#include <vector>
+#include <map>
+
+namespace indexlib {
+
+/**
+ * \brief A class for string matching
+ *
+ * This class represents a pattern in a pre-processed form so that searching for it in larger textes is
+ * very fast. This allows for a very fast way to ask "does this pattern appear in this text?"
+ *
+ * The implementation uses the shift-or algorithm which is very fast, but especially designed for
+ * patterns which are shorter than the number of bits in a word ( 32 bits on most architechtures ). For
+ * larger patterns, the first 32 characters are matched using shift-or and the next characters are strcmp()ed.
+ * Even for patterns larger than 32 characters, this should be a fast strategy.
+ */
+class Match {
+	public:
+		enum flags { caseinsensitive = 1 };
+		/** Construct an object to match string \param pattern
+		 */
+		Match( std::string pattern, unsigned flags = 0 );
+		~Match();
+
+		/**
+		 * Returns true if the pattern appears in \param string
+		 * It has no memory
+		 */
+		bool process( const char* string ) const;
+		bool process( std::string str ) const { return process( str.c_str() ); }
+	private:
+		typedef std::vector<unsigned> masks_type;
+		masks_type masks_;
+		unsigned hot_bit_;
+		bool caseinsensitive_;
+		std::string pattern_rest_;
+};
+}
+
+
+#endif /* LPC_MATCH_H1105564052_INCLUDE_GUARD_ */