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
index 142e1ab..ef0148c 100644
--- 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 @@
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)