1 /* datematchdecider.h: date filtering using a Xapian::MatchDecider 2 * 3 * Copyright (C) 2006 Olly Betts 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 20 #ifndef OMEGA_INCLUDED_DATEMATCHDECIDER_H 21 #define OMEGA_INCLUDED_DATEMATCHDECIDER_H 22 23 #include <xapian.h> 24 25 #include <ctime> 26 #include <string> 27 28 extern time_t set_start_or_end(const std::string & str, char * yyyymmddhhmm, char * yyyymmdd, char * raw4, bool start); 29 extern time_t set_start_or_end(time_t secs, char * yyyymmddhhmm, char * yyyymmdd, char * raw4); 30 31 class DateMatchDecider : public Xapian::MatchDecider { 32 Xapian::valueno val; 33 char s_yyyymmdd[9], s_yyyymmddhhmm[13], s_raw4[4]; 34 char e_yyyymmdd[9], e_yyyymmddhhmm[13], e_raw4[4]; 35 set_start(const std::string & str)36 time_t set_start(const std::string & str) { 37 return set_start_or_end(str, s_yyyymmddhhmm, s_yyyymmdd, s_raw4, true); 38 } 39 set_start(time_t t)40 time_t set_start(time_t t) { 41 return set_start_or_end(t, s_yyyymmddhhmm, s_yyyymmdd, s_raw4); 42 } 43 set_end(const std::string & str)44 time_t set_end(const std::string & str) { 45 return set_start_or_end(str, e_yyyymmddhhmm, e_yyyymmdd, e_raw4, false); 46 } 47 set_end(time_t t)48 time_t set_end(time_t t) { 49 return set_start_or_end(t, e_yyyymmddhhmm, e_yyyymmdd, e_raw4); 50 } 51 52 public: 53 DateMatchDecider(Xapian::valueno val_, 54 const std::string & date_start, 55 const std::string & date_end, 56 const std::string & date_span); 57 58 bool operator()(const Xapian::Document &doc) const; 59 }; 60 61 #endif 62