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/ex_getln.c b/src/ex_getln.c
index c7a6d85..194b3bf 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -1693,7 +1693,7 @@
i = searchit(curwin, curbuf, &t,
c == Ctrl_G ? FORWARD : BACKWARD,
ccline.cmdbuff, count, search_flags,
- RE_SEARCH, 0, NULL);
+ RE_SEARCH, 0, NULL, NULL);
--emsg_off;
if (i)
{
@@ -1903,9 +1903,9 @@
i = do_search(NULL, firstc, ccline.cmdbuff, count,
SEARCH_KEEP + SEARCH_OPT + SEARCH_NOOF + SEARCH_PEEK,
#ifdef FEAT_RELTIME
- &tm
+ &tm, NULL
#else
- NULL
+ NULL, NULL
#endif
);
--emsg_off;