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| | /* parse-time-vrp.cc - 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 http://www.gnu.org/licenses/ .
*
* Author: Jani Nikula <jani@nikula.org>
*/
#include "database-private.h"
#include "parse-time-vrp.h"
#include "parse-time-string.h"
#define PREFIX "date:"
/* See *ValueRangeProcessor in xapian-core/api/valuerangeproc.cc */
Xapian::valueno
ParseTimeValueRangeProcessor::operator() (std::string &begin, std::string &end)
{
time_t t, now;
std::string b;
/* Require date: prefix in start of the range... */
if (STRNCMP_LITERAL (begin.c_str (), PREFIX))
return Xapian::BAD_VALUENO;
/* ...and remove it. */
begin.erase (0, sizeof (PREFIX) - 1);
b = begin;
/* Use the same 'now' for begin and end. */
if (time (&now) == (time_t) -1)
return Xapian::BAD_VALUENO;
if (!begin.empty ()) {
if (parse_time_string (begin.c_str (), &t, &now, PARSE_TIME_ROUND_DOWN))
return Xapian::BAD_VALUENO;
begin.assign (Xapian::sortable_serialise ((double) t));
}
if (!end.empty ()) {
if (end == "!" && ! b.empty ())
end = b;
if (parse_time_string (end.c_str (), &t, &now, PARSE_TIME_ROUND_UP_INCLUSIVE))
return Xapian::BAD_VALUENO;
end.assign (Xapian::sortable_serialise ((double) t));
}
return valno;
}
#if HAVE_XAPIAN_FIELD_PROCESSOR
/* XXX TODO: is throwing an exception the right thing to do here? */
Xapian::Query DateFieldProcessor::operator()(const std::string & str) {
time_t from, to, now;
/* Use the same 'now' for begin and end. */
if (time (&now) == (time_t) -1)
throw Xapian::QueryParserError("Unable to get current time");
if (parse_time_string (str.c_str (), &from, &now, PARSE_TIME_ROUND_DOWN))
throw Xapian::QueryParserError ("Didn't understand date specification '" + str + "'");
if (parse_time_string (str.c_str (), &to, &now, PARSE_TIME_ROUND_UP_INCLUSIVE))
throw Xapian::QueryParserError ("Didn't understand date specification '" + str + "'");
return Xapian::Query(Xapian::Query::OP_AND,
Xapian::Query(Xapian::Query::OP_VALUE_GE, 0, Xapian::sortable_serialise ((double) from)),
Xapian::Query(Xapian::Query::OP_VALUE_LE, 0, Xapian::sortable_serialise ((double) to)));
}
#endif
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