# HG changeset patch
# User Bram Moolenaar <bram@vim.org>
# Date 1346850210 -7200
# Node ID a638ae0f1b0cc41d8d753d79503238f11215f3ea
# Parent  5fb4134170670e1f5da4be661219a5bcde01a2dd
updated for version 7.3.650
Problem:    Completion after ":help \{-" gives an error message and messes up
	    the command line.
Solution:   Cancel the tag search if the pattern can't be compiled. (Yasuhiro
	    Matsumoto)

diff --git a/src/tag.c b/src/tag.c
--- a/src/tag.c
+++ b/src/tag.c
@@ -1443,6 +1443,8 @@ find_tags(pat, num_matches, matchesp, fl
 	orgpat.len = p_tl;
 
     prepare_pats(&orgpat, has_re);
+    if (has_re && orgpat.regmatch.regprog == NULL)
+	goto findtag_end;
 
 #ifdef FEAT_TAG_BINS
     /* This is only to avoid a compiler warning for using search_info
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -720,6 +720,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    650,
+/**/
     649,
 /**/
     648,