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bf3cc5eed2
This will allow re-using the same logic in the s-expression parser.
107 lines
3.3 KiB
C++
107 lines
3.3 KiB
C++
/* parse-time-vrp.cc - date range query glue
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*
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* This file is part of notmuch.
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*
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* Copyright © 2012 Jani Nikula
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see https://www.gnu.org/licenses/ .
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*
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* Author: Jani Nikula <jani@nikula.org>
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*/
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#include "database-private.h"
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#include "parse-time-vrp.h"
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#include "parse-time-string.h"
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notmuch_status_t
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_notmuch_date_strings_to_query (Xapian::valueno slot,
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const std::string &begin, const std::string &end,
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Xapian::Query &output, std::string &msg)
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{
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double from = DBL_MIN, to = DBL_MAX;
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time_t parsed_time, now;
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std::string str;
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/* Use the same 'now' for begin and end. */
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if (time (&now) == (time_t) -1) {
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msg = "unable to get current time";
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return NOTMUCH_STATUS_ILLEGAL_ARGUMENT;
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}
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if (! begin.empty ()) {
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if (parse_time_string (begin.c_str (), &parsed_time, &now, PARSE_TIME_ROUND_DOWN)) {
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msg = "Didn't understand date specification '" + begin + "'";
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return NOTMUCH_STATUS_BAD_QUERY_SYNTAX;
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}
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from = (double) parsed_time;
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}
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if (! end.empty ()) {
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if (end == "!" && ! begin.empty ())
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str = begin;
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else
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str = end;
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if (parse_time_string (str.c_str (), &parsed_time, &now, PARSE_TIME_ROUND_UP_INCLUSIVE)) {
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msg = "Didn't understand date specification '" + str + "'";
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return NOTMUCH_STATUS_BAD_QUERY_SYNTAX;
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}
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to = (double) parsed_time;
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}
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output = Xapian::Query (Xapian::Query::OP_VALUE_RANGE, slot,
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Xapian::sortable_serialise (from),
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Xapian::sortable_serialise (to));
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return NOTMUCH_STATUS_SUCCESS;
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}
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Xapian::Query
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ParseTimeRangeProcessor::operator() (const std::string &begin, const std::string &end)
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{
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Xapian::Query output;
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std::string msg;
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if (_notmuch_date_strings_to_query (slot, begin, end, output, msg))
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throw Xapian::QueryParserError (msg);
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return output;
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}
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/* XXX TODO: is throwing an exception the right thing to do here? */
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Xapian::Query
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DateFieldProcessor::operator() (const std::string & str)
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{
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double from = DBL_MIN, to = DBL_MAX;
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time_t parsed_time, now;
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/* Use the same 'now' for begin and end. */
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if (time (&now) == (time_t) -1)
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throw Xapian::QueryParserError ("Unable to get current time");
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if (parse_time_string (str.c_str (), &parsed_time, &now, PARSE_TIME_ROUND_DOWN))
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throw Xapian::QueryParserError ("Didn't understand date specification '" + str + "'");
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else
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from = (double) parsed_time;
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if (parse_time_string (str.c_str (), &parsed_time, &now, PARSE_TIME_ROUND_UP_INCLUSIVE))
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throw Xapian::QueryParserError ("Didn't understand date specification '" + str + "'");
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else
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to = (double) parsed_time;
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return Xapian::Query (Xapian::Query::OP_VALUE_RANGE, slot,
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Xapian::sortable_serialise (from),
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Xapian::sortable_serialise (to));
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}
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