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90cd1bac4e
Add a custom value range processor to enable date and time searches of the form date:since..until, where "since" and "until" are expressions understood by the previously added date/time parser, to restrict the results to messages within a particular time range (based on the Date: header). If "since" or "until" describes date/time at an accuracy of days or less, the values are rounded according to the accuracy, towards past for "since" and towards future for "until". For example, date:november..yesterday would match from the beginning of November until the end of yesterday. Expressions such as date:today..today means since the beginning of today until the end of today. Open-ended ranges are supported (since Xapian 1.2.1), i.e. you can specify date:..until or date:since.. to not limit the start or end date, respectively. CAVEATS: Xapian does not support spaces in range expressions. You can replace the spaces with '_', or (in most cases) '-', or (in some cases) leave the spaces out altogether. Entering date:expr without ".." (for example date:yesterday) will not work as you might expect. You can achieve the expected result by duplicating the expr both sides of ".." (for example date:yesterday..yesterday). Open-ended ranges won't work with pre-1.2.1 Xapian, but they don't produce an error either. Signed-off-by: Jani Nikula <jani@nikula.org>
71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/* database-private.h - For peeking into the internals of notmuch_database_t
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*
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* Copyright © 2009 Carl Worth
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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 http://www.gnu.org/licenses/ .
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*
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* Author: Carl Worth <cworth@cworth.org>
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*/
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#ifndef NOTMUCH_DATABASE_PRIVATE_H
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#define NOTMUCH_DATABASE_PRIVATE_H
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/* According to WG14/N1124, a C++ implementation won't provide us a
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* macro like PRIx64 (which gives a printf format string for
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* formatting a uint64_t as hexadecimal) unless we define
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* __STDC_FORMAT_MACROS before including inttypes.h. That's annoying,
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* but there it is.
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*/
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#define __STDC_FORMAT_MACROS
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#include <inttypes.h>
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#include "notmuch-private.h"
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#include <xapian.h>
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#pragma GCC visibility push(hidden)
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struct _notmuch_database {
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notmuch_bool_t exception_reported;
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char *path;
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notmuch_bool_t needs_upgrade;
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notmuch_database_mode_t mode;
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int atomic_nesting;
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Xapian::Database *xapian_db;
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unsigned int last_doc_id;
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uint64_t last_thread_id;
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Xapian::QueryParser *query_parser;
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Xapian::TermGenerator *term_gen;
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Xapian::ValueRangeProcessor *value_range_processor;
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Xapian::ValueRangeProcessor *date_range_processor;
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};
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/* Return the list of terms from the given iterator matching a prefix.
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* The prefix will be stripped from the strings in the returned list.
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* The list will be allocated using ctx as the talloc context.
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*
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* The function returns NULL on failure.
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*/
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notmuch_string_list_t *
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_notmuch_database_get_terms_with_prefix (void *ctx, Xapian::TermIterator &i,
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Xapian::TermIterator &end,
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const char *prefix);
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#pragma GCC visibility pop
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#endif
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