# HG changeset patch
# User Bram Moolenaar <bram@vim.org>
# Date 1369079823 -7200
# Node ID a63361b9097952faa9c9eba2caebef09b9f8b62b
# Parent  7058abc81075d4f614d3b0eac424904f0ce9c7f9
updated for version 7.3.979
Problem:    Complex NFA regexp doesn't work.
Solution:   Set actual state stack end instead of using an arbitrary number.
	    (Yasuhiro Matsumoto)

diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -17,8 +17,6 @@
 #define	    NFA_BRACES_MAXLIMIT		    10
 /* For allocating space for the postfix representation */
 #define	    NFA_POSTFIX_MULTIPLIER	    (NFA_BRACES_MAXLIMIT + 2)*2
-/* Size of stack, used when converting the postfix regexp into NFA */
-#define	    NFA_STACK_SIZE		    1024
 
 enum
 {
@@ -2160,9 +2158,9 @@ post2nfa(postfix, end, nfa_calc_size)
     if (nfa_calc_size == FALSE)
     {
 	/* Allocate space for the stack. Max states on the stack : nstate */
-	stack = (Frag_T *) lalloc((nstate + 1)*sizeof(Frag_T), TRUE);
+	stack = (Frag_T *) lalloc((nstate + 1) * sizeof(Frag_T), TRUE);
 	stackp = stack;
-	stack_end = stack + NFA_STACK_SIZE;
+	stack_end = stack + (nstate + 1);
     }
 
     for (p = postfix; p < end; ++p)
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -729,6 +729,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    979,
+/**/
     978,
 /**/
     977,