updated for version 7.4b.004
Problem:    Regexp crash on pattern "@\%[\w\-]*". (Axel Kielhorn)
Solution:   Add \%(\) around \%[] internally.
diff --git a/src/testdir/test64.in b/src/testdir/test64.in
index e666ab9..b0b1c91 100644
--- a/src/testdir/test64.in
+++ b/src/testdir/test64.in
@@ -373,6 +373,7 @@
 :call add(tl, [2, '\%[bar]x', 'xxx', 'x'])
 :call add(tl, [2, 'b\%[[ao]r]', 'bar bor', 'bar'])
 :call add(tl, [2, 'b\%[[]]r]', 'b]r bor', 'b]r'])
+:call add(tl, [2, '@\%[\w\-]*', '<http://john.net/pandoc/>[@pandoc]', '@pandoc'])
 :"
 :"""" Alternatives, must use first longest match
 :call add(tl, [2, 'goo\|go', 'google', 'goo'])