less: fix somewhat elusive case when less gets stuck in search mode

function                                             old     new   delta
read_lines                                           719     730     +11
goto_match                                           141     116     -25

diff --git a/miscutils/less.c b/miscutils/less.c
index 1a67ca7..37ec5d9 100644 (file)
--- a/miscutils/less.c
+++ b/miscutils/less.c
@@ -384,6 +384,10 @@ static void read_lines(void)
                linepos = 0;
        } /* end of "read lines until we reach cur_fline" loop */
        fill_match_lines(old_max_fline);
+#if ENABLE_FEATURE_LESS_REGEXP
+       /* prevent us from being stuck in search for a match */
+       wanted_match = -1;
+#endif
 #undef readbuf
 }
 
@@ -904,13 +908,8 @@ static void goto_match(int match)
                match = 0;
        /* Try to find next match if eof isn't reached yet */
        if (match >= num_matches && eof_error > 0) {
-               wanted_match = match;
+               wanted_match = match; /* "I want to read until I see N'th match" */
                read_lines();
-               if (wanted_match >= num_matches) {
-                       /* We still failed to find it. Prevent future
-                        * read_lines() from trying... */
-                       wanted_match = num_matches - 1;
-               }
        }
        if (num_matches) {
                normalize_match_pos(match);