+ if (sx->ty == SEXP_LIST) {
+ _notmuch_database_log (notmuch, "expected atom as first argument of '%s'\n", prefix->name);
+ return NOTMUCH_STATUS_BAD_QUERY_SYNTAX;
+ }
+
+ from = sx->val;
+ if (strcmp (from, "*") == 0)
+ from = "";
+
+ to = from;
+
+ if (sx->next) {
+ if (sx->next->ty == SEXP_LIST) {
+ _notmuch_database_log (notmuch, "expected atom as second argument of '%s'\n",
+ prefix->name);
+ return NOTMUCH_STATUS_BAD_QUERY_SYNTAX;
+ }
+
+ if (sx->next->next) {
+ _notmuch_database_log (notmuch, "'%s' expects maximum of two arguments\n", prefix->name);
+ return NOTMUCH_STATUS_BAD_QUERY_SYNTAX;
+ }
+
+ to = sx->next->val;
+ if (strcmp (to, "*") == 0)
+ to = "";
+ }
+
+ if (strcmp (prefix->name, "date") == 0) {
+ notmuch_status_t status;
+ status = _notmuch_date_strings_to_query (NOTMUCH_VALUE_TIMESTAMP, from, to, output, msg);
+ if (status) {
+ if (! msg.empty ())
+ _notmuch_database_log (notmuch, "%s\n", msg.c_str ());
+ }
+ return status;
+ }
+
+ if (strcmp (prefix->name, "lastmod") == 0) {
+ notmuch_status_t status;
+ status = _notmuch_lastmod_strings_to_query (notmuch, from, to, output, msg);
+ if (status) {
+ if (! msg.empty ())
+ _notmuch_database_log (notmuch, "%s\n", msg.c_str ());
+ }
+ return status;
+ }
+
+ _notmuch_database_log (notmuch, "unimplimented range prefix: '%s'\n", prefix->name);