X-Git-Url: https://rtime.felk.cvut.cz/gitweb/notmuch.git/blobdiff_plain/f00c925bd10c024d5b9f88d8903c7a0d14e9cc6a..398f1484b9cb0d981e668f55e2e42adeaf8be588:/tag-util.h

diff --git a/tag-util.h b/tag-util.h
index 4628f163..8a4074ce 100644
--- a/tag-util.h
+++ b/tag-util.h
@@ -89,6 +89,18 @@ tag_parse_status_t
 parse_tag_command_line (void *ctx, int argc, char **argv,
 			char **query_str, tag_op_list_t *ops);
 
+/*
+ * Test tags for some forbidden cases.
+ *
+ * Relax the checks if 'remove' is true to allow removal of previously
+ * added forbidden tags.
+ *
+ * return: NULL if OK,
+ *	   explanatory message otherwise.
+ */
+const char *
+illegal_tag (const char *tag, notmuch_bool_t remove);
+
 /*
  * Create an empty list of tag operations
  *