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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit460c52653ab0dcca6f19a4f492ed2c5e4e963ab0 (patch)
tree67208f7c145782a7e90b123b982ca78d88cc2c87 /indexlib/match.cpp
downloadtdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.tar.gz
tdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.zip
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
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+
+/* 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 "match.h"
+#include "format.h"
+#include "compat.h"
+#include <iostream>
+#include <assert.h>
+
+namespace {
+ inline
+ void setbit( unsigned& u, unsigned idx ) {
+ u |= ( 1 << idx );
+ }
+ inline
+ bool getbit( unsigned u, unsigned idx ) {
+ return u & ( 1 << idx );
+ }
+}
+
+indexlib::Match::Match( std::string str, unsigned flags ):
+ masks_( 256 ),
+ caseinsensitive_( flags & caseinsensitive ),
+ pattern_rest_( str, kMin( str.size(), sizeof( unsigned ) * 8 - 1 ) )
+{
+ hot_bit_ = kMin( str.size(), sizeof( unsigned ) * 8 - 1 );
+ for ( unsigned i = 0; i != hot_bit_; ++i ) {
+ if ( caseinsensitive_ ) {
+ setbit( masks_[ ( unsigned char )std::toupper( str[ i ] ) ], i );
+ setbit( masks_[ ( unsigned char )std::tolower( str[ i ] ) ], i );
+ } else {
+ setbit( masks_[ ( unsigned char )str[ i ] ], i );
+ }
+ }
+}
+
+indexlib::Match::~Match() {
+}
+
+bool indexlib::Match::process( const char* string ) const {
+ unsigned state = 0;
+ while ( *string ) {
+ state |= 1;
+ state &= masks_[ ( unsigned char )*string ];
+ state <<= 1;
+ ++string;
+ if ( getbit( state, hot_bit_ ) && ( pattern_rest_ == std::string( string, pattern_rest_.size() ) ) ) return true;
+ }
+ return !hot_bit_;
+}
+