+static const char *
+_get_tags_as_string (void *ctx, notmuch_message_t *message)
+{
+ notmuch_tags_t *tags;
+ int first = 1;
+ const char *tag;
+ char *result;
+
+ result = talloc_strdup (ctx, "");
+ if (result == NULL)
+ return NULL;
+
+ for (tags = notmuch_message_get_tags (message);
+ notmuch_tags_has_more (tags);
+ notmuch_tags_advance (tags))
+ {
+ tag = notmuch_tags_get (tags);
+
+ result = talloc_asprintf_append (result, "%s%s",
+ first ? "" : " ", tag);
+ first = 0;
+ }
+
+ return result;
+}
+