include/xapian/termgenerator.h

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00001 
00004 /* Copyright (C) 2007 Olly Betts
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2 of the License, or
00009  * (at your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with this program; if not, write to the Free Software
00018  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
00019  */
00020 
00021 #ifndef XAPIAN_INCLUDED_TERMGENERATOR_H
00022 #define XAPIAN_INCLUDED_TERMGENERATOR_H
00023 
00024 #include <xapian/base.h>
00025 #include <xapian/types.h>
00026 #include <xapian/unicode.h>
00027 #include <xapian/visibility.h>
00028 
00029 #include <string>
00030 
00031 namespace Xapian {
00032 
00033 class Document;
00034 class Stem;
00035 class Stopper;
00036 class WritableDatabase;
00037 
00044 class XAPIAN_VISIBILITY_DEFAULT TermGenerator {
00045   public:
00047     class Internal;
00049     Xapian::Internal::RefCntPtr<Internal> internal;
00050 
00052     TermGenerator(const TermGenerator & o);
00053 
00055     TermGenerator & operator=(const TermGenerator & o);
00056 
00058     TermGenerator();
00059 
00061     ~TermGenerator();
00062 
00064     void set_stemmer(const Xapian::Stem & stemmer);
00065 
00067     void set_stopper(const Xapian::Stopper *stop = NULL);
00068 
00070     void set_document(const Xapian::Document & doc);
00071 
00073     const Xapian::Document & get_document() const;
00074 
00076     void set_database(const Xapian::WritableDatabase &db);
00077 
00079     enum flags {
00081         FLAG_SPELLING = 128 // Value matches QueryParser flag.
00082     };
00083 
00096     flags set_flags(flags toggle, flags mask = flags(0));
00097 
00103     void index_text(const Xapian::Utf8Iterator & itor,
00104                     Xapian::termcount weight = 1,
00105                     const std::string & prefix = "");
00106 
00112     void index_text(const std::string & text,
00113                     Xapian::termcount weight = 1,
00114                     const std::string & prefix = "") {
00115         return index_text(Utf8Iterator(text), weight, prefix);
00116     }
00117 
00124     void index_text_without_positions(const Xapian::Utf8Iterator & itor,
00125                                       Xapian::termcount weight = 1,
00126                                       const std::string & prefix = "");
00127 
00134     void index_text_without_positions(const std::string & text,
00135                                       Xapian::termcount weight = 1,
00136                                       const std::string & prefix = "") {
00137         return index_text_without_positions(Utf8Iterator(text), weight, prefix);
00138     }
00139 
00145     void increase_termpos(Xapian::termcount delta = 100);
00146 
00148     Xapian::termcount get_termpos() const;
00149 
00151     void set_termpos(Xapian::termcount termpos);
00152 
00154     std::string get_description() const;
00155 };
00156 
00157 }
00158 
00159 #endif // XAPIAN_INCLUDED_TERMGENERATOR_H

Documentation for Xapian (version 1.0.10).
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