patch 8.0.0643: when a pattern search is slow Vim becomes unusable
Problem: When 'hlsearch' is set and matching with the last search pattern
is very slow, Vim becomes unusable. Cannot quit search by
pressing CTRL-C.
Solution: When the search times out set a flag and don't try again. Check
for timeout and CTRL-C in NFA loop that adds states.
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 8167abd..2bbdefc 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -9281,7 +9281,7 @@
pos = save_cursor = curwin->w_cursor;
subpatnum = searchit(curwin, curbuf, &pos, dir, pat, 1L,
- options, RE_SEARCH, (linenr_T)lnum_stop, &tm);
+ options, RE_SEARCH, (linenr_T)lnum_stop, &tm, NULL);
if (subpatnum != FAIL)
{
if (flags & SP_SUBPAT)
@@ -9619,7 +9619,7 @@
for (;;)
{
n = searchit(curwin, curbuf, &pos, dir, pat, 1L,
- options, RE_SEARCH, lnum_stop, &tm);
+ options, RE_SEARCH, lnum_stop, &tm, NULL);
if (n == FAIL || (firstpos.lnum != 0 && EQUAL_POS(pos, firstpos)))
/* didn't find it or found the first match again: FAIL */
break;