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authorGravatar Jani Nikula <jani@nikula.org>2012-10-30 22:32:37 +0200
committerGravatar David Bremner <bremner@debian.org>2012-10-31 16:55:32 -0300
commit90cd1bac4eeb0d57fbe2740625aaa58d8d925ee5 (patch)
tree13c81b12feb15fa6247476c94a75885354315df1 /lib/database-private.h
parentaf6b4b29f97b1f457bb7220491bf37536e1b9d7a (diff)
lib: add date range query support
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>
Diffstat (limited to 'lib/database-private.h')
-rw-r--r--lib/database-private.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/database-private.h b/lib/database-private.h
index 88532d51..d3e65fd6 100644
--- a/lib/database-private.h
+++ b/lib/database-private.h
@@ -52,6 +52,7 @@ struct _notmuch_database {
Xapian::QueryParser *query_parser;
Xapian::TermGenerator *term_gen;
Xapian::ValueRangeProcessor *value_range_processor;
+ Xapian::ValueRangeProcessor *date_range_processor;
};
/* Return the list of terms from the given iterator matching a prefix.