commit bcf9442307075bac40d44328c8bf7ea21857b138
author Bram Moolenaar <Bram@vim.org> Sat Jun 23 14:21:42 2018 +0200
committer Bram Moolenaar <Bram@vim.org> Sat Jun 23 14:21:42 2018 +0200
tree 6890b363128e8cbffe09b274ecd1b1665393fac1
parent 5efa0102de6ed6049fb19e1e83787e5b3b24b6a2

patch 8.1.0098: segfault when pattern with \z() is very slow

Problem:    Segfault when pattern with \z() is very slow.
Solution:   Check for NULL regprog.  Add "nfa_fail" to test_override() to be
            able to test this.  Fix that 'searchhl' resets called_emsg.

src/vim.h

diff --git a/src/vim.h b/src/vim.h
index 0a4a490..fb476c5 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1013,6 +1013,7 @@
 /* values for reg_do_extmatch */
 # define REX_SET	1	/* to allow \z\(...\), */
 # define REX_USE	2	/* to allow \z\1 et al. */
+# define REX_ALL	(REX_SET | REX_USE)
 #endif
 
 /* Return values for fullpathcmp() */