lib: generate actual Xapian query for "*" and ""

The previous code had the somewhat bizarre effect that the (notmuch
specific) query string was "*" (interpreted as MatchAll) and the
allegedly parsed xapian_query was "MatchNothing".

This commit also reduces code duplication.

diff --git a/lib/query.cc b/lib/query.cc
index 56f90e1ce1480d6a14de1e594565be1ff31144c6..57596f48f164c5a9501a9e6a128092282d085b70 100644 (file)
--- a/lib/query.cc
+++ b/lib/query.cc
@@ -182,11 +182,16 @@ static notmuch_status_t
 _notmuch_query_ensure_parsed_xapian (notmuch_query_t *query)
 {
     try {
-       query->xapian_query =
-           query->notmuch->query_parser->
-           parse_query (query->query_string, NOTMUCH_QUERY_PARSER_FLAGS);
+       if (strcmp (query->query_string, "") == 0 ||
+           strcmp (query->query_string, "*") == 0) {
+           query->xapian_query = Xapian::Query::MatchAll;
+       } else {
+           query->xapian_query =
+               query->notmuch->query_parser->
+               parse_query (query->query_string, NOTMUCH_QUERY_PARSER_FLAGS);
 
-       _notmuch_query_cache_terms (query);
+           _notmuch_query_cache_terms (query);
+       }
        query->parsed = true;
 
     } catch (const Xapian::Error &error) {
@@ -331,7 +336,6 @@ _notmuch_query_search_documents (notmuch_query_t *query,
                                 notmuch_messages_t **out)
 {
     notmuch_database_t *notmuch = query->notmuch;
-    const char *query_string = query->query_string;
     notmuch_mset_messages_t *messages;
     notmuch_status_t status;
 
@@ -361,13 +365,9 @@ _notmuch_query_search_documents (notmuch_query_t *query,
        Xapian::MSet mset;
        Xapian::MSetIterator iterator;
 
-       if (strcmp (query_string, "") == 0 ||
-           strcmp (query_string, "*") == 0) {
-           final_query = mail_query;
-       } else {
-           final_query = Xapian::Query (Xapian::Query::OP_AND,
-                                        mail_query, query->xapian_query);
-       }
+       final_query = Xapian::Query (Xapian::Query::OP_AND,
+                                    mail_query, query->xapian_query);
+
        messages->base.excluded_doc_ids = NULL;
 
        if ((query->omit_excluded != NOTMUCH_EXCLUDE_FALSE) && (query->exclude_terms)) {
@@ -688,7 +688,6 @@ notmuch_status_t
 _notmuch_query_count_documents (notmuch_query_t *query, const char *type, unsigned *count_out)
 {
     notmuch_database_t *notmuch = query->notmuch;
-    const char *query_string = query->query_string;
     Xapian::doccount count = 0;
     notmuch_status_t status;
 
@@ -704,13 +703,8 @@ _notmuch_query_count_documents (notmuch_query_t *query, const char *type, unsign
        Xapian::Query final_query, exclude_query;
        Xapian::MSet mset;
 
-       if (strcmp (query_string, "") == 0 ||
-           strcmp (query_string, "*") == 0) {
-           final_query = mail_query;
-       } else {
-           final_query = Xapian::Query (Xapian::Query::OP_AND,
-                                        mail_query, query->xapian_query);
-       }
+       final_query = Xapian::Query (Xapian::Query::OP_AND,
+                                    mail_query, query->xapian_query);
 
        exclude_query = _notmuch_exclude_tags (query);