From 08f7b026a9f8a32fbe14eb73b99a026544b22900 Mon Sep 17 00:00:00 2001 From: Mark Walters Date: Thu, 1 Mar 2012 22:30:36 +0000 Subject: lib: Rearrange the exclude code in query.cc Slightly refactor the exclude code to give the callers access to the exclude query itself. There should be no functional change. --- lib/query.cc | 29 +++++++++++++++++++---------- 1 file changed, 19 insertions(+), 10 deletions(-) (limited to 'lib') diff --git a/lib/query.cc b/lib/query.cc index 0b36602..c25b301 100644 --- a/lib/query.cc +++ b/lib/query.cc @@ -122,12 +122,15 @@ _notmuch_messages_destructor (notmuch_mset_messages_t *messages) return 0; } -/* Return a query that does not match messages with the excluded tags - * registered with the query. Any tags that explicitly appear in - * xquery will not be excluded. */ +/* Return a query that matches messages with the excluded tags + * registered with query. Any tags that explicitly appear in xquery + * will not be excluded. The caller of this function has to combine + * the returned query appropriately.*/ static Xapian::Query _notmuch_exclude_tags (notmuch_query_t *query, Xapian::Query xquery) { + Xapian::Query exclude_query = Xapian::Query::MatchNothing; + for (notmuch_string_node_t *term = query->exclude_terms->head; term; term = term->next) { Xapian::TermIterator it = xquery.get_terms_begin (); @@ -137,10 +140,10 @@ _notmuch_exclude_tags (notmuch_query_t *query, Xapian::Query xquery) break; } if (it == end) - xquery = Xapian::Query (Xapian::Query::OP_AND_NOT, - xquery, Xapian::Query (term->string)); + exclude_query = Xapian::Query (Xapian::Query::OP_OR, + exclude_query, Xapian::Query (term->string)); } - return xquery; + return exclude_query; } notmuch_messages_t * @@ -168,7 +171,7 @@ notmuch_query_search_messages (notmuch_query_t *query) Xapian::Query mail_query (talloc_asprintf (query, "%s%s", _find_prefix ("type"), "mail")); - Xapian::Query string_query, final_query; + Xapian::Query string_query, final_query, exclude_query; Xapian::MSet mset; unsigned int flags = (Xapian::QueryParser::FLAG_BOOLEAN | Xapian::QueryParser::FLAG_PHRASE | @@ -188,7 +191,10 @@ notmuch_query_search_messages (notmuch_query_t *query) mail_query, string_query); } - final_query = _notmuch_exclude_tags (query, final_query); + exclude_query = _notmuch_exclude_tags (query, final_query); + + final_query = Xapian::Query (Xapian::Query::OP_AND_NOT, + final_query, exclude_query); enquire.set_weighting_scheme (Xapian::BoolWeight()); @@ -449,7 +455,7 @@ notmuch_query_count_messages (notmuch_query_t *query) Xapian::Query mail_query (talloc_asprintf (query, "%s%s", _find_prefix ("type"), "mail")); - Xapian::Query string_query, final_query; + Xapian::Query string_query, final_query, exclude_query; Xapian::MSet mset; unsigned int flags = (Xapian::QueryParser::FLAG_BOOLEAN | Xapian::QueryParser::FLAG_PHRASE | @@ -469,7 +475,10 @@ notmuch_query_count_messages (notmuch_query_t *query) mail_query, string_query); } - final_query = _notmuch_exclude_tags (query, final_query); + exclude_query = _notmuch_exclude_tags (query, final_query); + + final_query = Xapian::Query (Xapian::Query::OP_AND_NOT, + final_query, exclude_query); enquire.set_weighting_scheme(Xapian::BoolWeight()); enquire.set_docid_order(Xapian::Enquire::ASCENDING); -- cgit v1.2.3