00001 /* ompositionlistiterator.cc 00002 * 00003 * Copyright 1999,2000,2001 BrightStation PLC 00004 * Copyright 2003,2004,2008 Olly Betts 00005 * 00006 * This program is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU General Public License as 00008 * published by the Free Software Foundation; either version 2 of the 00009 * License, or (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 00019 * USA 00020 */ 00021 00022 #include <config.h> 00023 #include <xapian/positioniterator.h> 00024 #include "positionlist.h" 00025 #include "omassert.h" 00026 #include "omdebug.h" 00027 00028 Xapian::PositionIterator::PositionIterator(Internal *internal_) 00029 : internal(internal_) 00030 { 00031 if (internal.get()) { 00032 internal->next(); 00033 if (internal->at_end()) internal = 0; 00034 } 00035 } 00036 00037 Xapian::PositionIterator::PositionIterator() : internal(0) 00038 { 00039 } 00040 00041 Xapian::PositionIterator::PositionIterator(const Xapian::PositionIterator &o) 00042 : internal(o.internal) 00043 { 00044 } 00045 00046 Xapian::PositionIterator::~PositionIterator() 00047 { 00048 } 00049 00050 void 00051 Xapian::PositionIterator::operator=(const Xapian::PositionIterator &o) 00052 { 00053 internal = o.internal; 00054 } 00055 00056 Xapian::termpos 00057 Xapian::PositionIterator::operator *() const 00058 { 00059 DEBUGAPICALL(Xapian::termpos, "Xapian::PositionIterator::operator*", ""); 00060 Assert(internal.get()); 00061 Assert(!internal->at_end()); 00062 RETURN(internal->get_position()); 00063 } 00064 00065 Xapian::PositionIterator & 00066 Xapian::PositionIterator::operator++() 00067 { 00068 DEBUGAPICALL(void, "Xapian::PositionIterator::operator++", ""); 00069 Assert(internal.get()); 00070 Assert(!internal->at_end()); 00071 internal->next(); 00072 if (internal->at_end()) internal = 0; 00073 return *this; 00074 } 00075 00076 // extra method, not required to be an input_iterator 00077 void 00078 Xapian::PositionIterator::skip_to(Xapian::termpos pos) 00079 { 00080 DEBUGAPICALL(void, "Xapian::PositionIterator::skip_to", pos); 00081 Assert(internal.get()); 00082 Assert(!internal->at_end()); 00083 internal->skip_to(pos); 00084 if (internal->at_end()) internal = 0; 00085 } 00086 00087 std::string 00088 Xapian::PositionIterator::get_description() const 00089 { 00091 return "Xapian::PositionIterator()"; 00092 }