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/* omtermlistiterator.cc
*
* Copyright 1999,2000,2001 BrightStation PLC
* Copyright 2003,2004,2005,2006,2007,2008 Olly Betts
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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 St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include <config.h>
#include <xapian/termiterator.h>
#include "termlist.h"
#include "positionlist.h"
#include "debuglog.h"
#include "omassert.h"
using namespace std;
// Helper function.
inline void
handle_prune(Xapian::Internal::RefCntPtr<TermList>& old, TermList * result)
{
if (result) {
old = result;
}
}
Xapian::TermIterator::TermIterator(Internal *internal_)
: internal(internal_)
{
if (internal.get()) {
// A TermList starts before the start, iterators start at the start
handle_prune(internal, internal->next());
if (internal->at_end()) internal = 0;
}
}
Xapian::TermIterator::TermIterator() : internal(0)
{
LOGCALL_VOID(API, "Xapian::TermIterator::TermIterator", NO_ARGS);
}
Xapian::TermIterator::~TermIterator() {
LOGCALL_VOID(API, "Xapian::TermIterator::~TermIterator", NO_ARGS);
}
Xapian::TermIterator::TermIterator(const Xapian::TermIterator &other)
: internal(other.internal)
{
LOGCALL_VOID(API, "Xapian::TermIterator::TermIterator", other);
}
void
Xapian::TermIterator::operator=(const Xapian::TermIterator &other)
{
LOGCALL_VOID(API, "Xapian::TermIterator::operator=", other);
internal = other.internal;
}
string
Xapian::TermIterator::operator *() const
{
LOGCALL(API, string, "Xapian::TermIterator::operator*", NO_ARGS);
Assert(internal.get());
Assert(!internal->at_end());
RETURN(internal->get_termname());
}
Xapian::termcount
Xapian::TermIterator::get_wdf() const
{
LOGCALL(API, Xapian::termcount, "Xapian::TermIterator::get_wdf", NO_ARGS);
Assert(internal.get());
Assert(!internal->at_end());
RETURN(internal->get_wdf());
}
Xapian::doccount
Xapian::TermIterator::get_termfreq() const
{
LOGCALL(API, Xapian::doccount, "Xapian::TermIterator::get_termfreq", NO_ARGS);
Assert(internal.get());
Assert(!internal->at_end());
RETURN(internal->get_termfreq());
}
Xapian::TermIterator &
Xapian::TermIterator::operator++()
{
LOGCALL_VOID(API, "Xapian::TermIterator::operator++", NO_ARGS);
Assert(internal.get());
Assert(!internal->at_end());
handle_prune(internal, internal->next());
if (internal->at_end()) internal = 0;
return *this;
}
// extra method, not required to be an input_iterator
void
Xapian::TermIterator::skip_to(const string & tname)
{
LOGCALL_VOID(API, "Xapian::TermIterator::skip_to", tname);
if (internal.get()) {
Assert(!internal->at_end());
handle_prune(internal, internal->skip_to(tname));
if (internal->at_end()) internal = 0;
}
}
Xapian::termcount
Xapian::TermIterator::positionlist_count() const
{
LOGCALL(API, Xapian::termcount, "Xapian::TermIterator::positionlist_count", NO_ARGS);
Assert(internal.get());
Assert(!internal->at_end());
RETURN(internal->positionlist_count());
}
Xapian::PositionIterator
Xapian::TermIterator::positionlist_begin() const
{
LOGCALL(API, Xapian::PositionIterator, "Xapian::TermIterator::positionlist_begin", NO_ARGS);
Assert(internal.get());
Assert(!internal->at_end());
RETURN(internal->positionlist_begin());
}
std::string
Xapian::TermIterator::get_description() const
{
/// \todo display contents of the object
return "Xapian::TermIterator()";
}
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