patch 8.0.0643: when a pattern search is slow Vim becomes unusablev8.0.0643

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.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/proto/search.pro b/src/proto/search.pro
index 3b9ca5c74a..63955adee0 100644
--- a/src/proto/search.pro
+++ b/src/proto/search.pro
@@ -19,9 +19,9 @@ char_u *last_search_pat(void);
 void reset_search_dir(void);
 void set_last_search_pat(char_u *s, int idx, int magic, int setlast);
 void last_pat_prog(regmmatch_T *regmatch);
-int searchit(win_T *win, buf_T *buf, pos_T *pos, int dir, char_u *pat, long count, int options, int pat_use, linenr_T stop_lnum, proftime_T *tm);
+int searchit(win_T *win, buf_T *buf, pos_T *pos, int dir, char_u *pat, long count, int options, int pat_use, linenr_T stop_lnum, proftime_T *tm, int *timed_out);
 void set_search_direction(int cdir);
-int do_search(oparg_T *oap, int dirc, char_u *pat, long count, int options, proftime_T *tm);
+int do_search(oparg_T *oap, int dirc, char_u *pat, long count, int options, proftime_T *tm, int *timed_out);
 int search_for_exact_line(buf_T *buf, pos_T *pos, int dir, char_u *pat);
 int searchc(cmdarg_T *cap, int t_cmd);
 pos_T *findmatch(oparg_T *oap, int initc);