mirror of
https://git.notmuchmail.org/git/notmuch
synced 2024-11-21 18:38:08 +01:00
2e5ef69fbf
By sharing the existing logic used by the sexp query parser, this allows negative lastmod revisions to be interpreted as relative to the most recent revision.
83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
/* lastmod-fp.cc - lastmod 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 © 2022 David Bremner
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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: David Bremner <david@tethera.net>
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*/
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#include "database-private.h"
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#include "lastmod-fp.h"
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notmuch_status_t
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_notmuch_lastmod_strings_to_query (notmuch_database_t *notmuch,
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const std::string &from, const std::string &to,
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Xapian::Query &output, std::string &msg)
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{
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long from_idx = 0L, to_idx = LONG_MAX;
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long current;
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std::string str;
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/* revision should not change, but for the avoidance of doubt,
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* grab for both ends of range, if needed*/
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current = notmuch_database_get_revision (notmuch, NULL);
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try {
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if (from.empty ())
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from_idx = 0L;
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else
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from_idx = std::stol (from);
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} catch (std::logic_error &e) {
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msg = "bad 'from' revision: '" + from + "'";
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return NOTMUCH_STATUS_BAD_QUERY_SYNTAX;
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}
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if (from_idx < 0)
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from_idx += current;
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try {
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if (EMPTY_STRING (to))
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to_idx = LONG_MAX;
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else
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to_idx = std::stol (to);
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} catch (std::logic_error &e) {
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msg = "bad 'to' revision: '" + to + "'";
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return NOTMUCH_STATUS_BAD_QUERY_SYNTAX;
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}
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if (to_idx < 0)
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to_idx += current;
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output = Xapian::Query (Xapian::Query::OP_VALUE_RANGE, NOTMUCH_VALUE_LAST_MOD,
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Xapian::sortable_serialise (from_idx),
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Xapian::sortable_serialise (to_idx));
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return NOTMUCH_STATUS_SUCCESS;
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}
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Xapian::Query
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LastModRangeProcessor::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_lastmod_strings_to_query (notmuch, 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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