notmuch/lib/parse-time-vrp.h
David Bremner b90d852a2f lib: migrate from Xapian ValueRangeProcessor to RangeProcessor
This will be mandatory as of Xapian 1.5.  The API is also more
consistent with the FieldProcessor API, which helps code re-use a bit.

Note that this switches to using the built-in Xapian support for
prefixes on ranges (i.e. deleted code at beginning of
ParseTimeRangeProcessor::operator(), added prefix to constructor).

Another side effect of the migration is that we are generating smaller
queries, using one OP_VALUE_RANGE instead of an AND of two OP_VALUE_*
queries.
2020-07-11 17:20:09 -03:00

46 lines
1.5 KiB
C++

/* parse-time-vrp.h - date range query glue
*
* This file is part of notmuch.
*
* Copyright © 2012 Jani Nikula
*
* 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 3 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, see https://www.gnu.org/licenses/ .
*
* Author: Jani Nikula <jani@nikula.org>
*/
#ifndef NOTMUCH_PARSE_TIME_VRP_H
#define NOTMUCH_PARSE_TIME_VRP_H
#include <xapian.h>
/* see *ValueRangeProcessor in xapian-core/include/xapian/queryparser.h */
class ParseTimeRangeProcessor : public Xapian::RangeProcessor {
public:
ParseTimeRangeProcessor (Xapian::valueno slot_, const std::string prefix_)
: Xapian::RangeProcessor(slot_, prefix_, 0) { }
Xapian::Query operator() (const std::string &begin, const std::string &end);
};
class DateFieldProcessor : public Xapian::FieldProcessor {
private:
Xapian::valueno slot;
public:
DateFieldProcessor(Xapian::valueno slot_) : slot(slot_) { };
Xapian::Query operator()(const std::string & str);
};
#endif /* NOTMUCH_PARSE_TIME_VRP_H */