+
+unsigned
+notmuch_query_count_messages (notmuch_query_t *query)
+{
+ notmuch_database_t *notmuch = query->notmuch;
+ const char *query_string = query->query_string;
+ Xapian::doccount count = 0;
+
+ try {
+ Xapian::Enquire enquire (*notmuch->xapian_db);
+ Xapian::Query mail_query (talloc_asprintf (query, "%s%s",
+ _find_prefix ("type"),
+ "mail"));
+ Xapian::Query string_query, final_query;
+ Xapian::MSet mset;
+ unsigned int flags = (Xapian::QueryParser::FLAG_BOOLEAN |
+ Xapian::QueryParser::FLAG_PHRASE |
+ Xapian::QueryParser::FLAG_LOVEHATE |
+ Xapian::QueryParser::FLAG_BOOLEAN_ANY_CASE |
+ Xapian::QueryParser::FLAG_WILDCARD |
+ Xapian::QueryParser::FLAG_PURE_NOT);
+
+ if (strcmp (query_string, "") == 0 ||
+ strcmp (query_string, "*") == 0)
+ {
+ final_query = mail_query;
+ } else {
+ string_query = notmuch->query_parser->
+ parse_query (query_string, flags);
+ final_query = Xapian::Query (Xapian::Query::OP_AND,
+ mail_query, string_query);
+ }
+
+ enquire.set_weighting_scheme(Xapian::BoolWeight());
+ enquire.set_docid_order(Xapian::Enquire::ASCENDING);
+
+#if DEBUG_QUERY
+ fprintf (stderr, "Final query is:\n%s\n", final_query.get_description().c_str());
+#endif
+
+ enquire.set_query (final_query);
+
+ mset = enquire.get_mset (0, notmuch->xapian_db->get_doccount ());
+
+ count = mset.get_matches_estimated();
+
+ } catch (const Xapian::Error &error) {
+ fprintf (stderr, "A Xapian exception occurred: %s\n",
+ error.get_msg().c_str());
+ fprintf (stderr, "Query string was: %s\n", query->query_string);
+ }
+
+ return count;
+}