updated for version 7.3.1194
Problem: Yaml highlighting is slow.
Solution: Tune the estimation of pattern failure chance.
diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index 7a33533..5414465 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -4686,6 +4686,18 @@
/* empty match works always */
return 0;
+ case NFA_START_INVISIBLE:
+ case NFA_START_INVISIBLE_FIRST:
+ case NFA_START_INVISIBLE_NEG:
+ case NFA_START_INVISIBLE_NEG_FIRST:
+ case NFA_START_INVISIBLE_BEFORE:
+ case NFA_START_INVISIBLE_BEFORE_FIRST:
+ case NFA_START_INVISIBLE_BEFORE_NEG:
+ case NFA_START_INVISIBLE_BEFORE_NEG_FIRST:
+ case NFA_START_PATTERN:
+ /* recursive regmatch is expensive, use low failure chance */
+ return 5;
+
case NFA_BOL:
case NFA_EOL:
case NFA_BOF:
@@ -5264,7 +5276,7 @@
skip_lid = nextlist->id;
#endif
}
- else if(state_in_list(thislist,
+ else if (state_in_list(thislist,
t->state->out1->out->out, &t->subs))
{
skip = t->state->out1->out->out;