diff options
| -rw-r--r-- | src/tac.c | 9 |
1 files changed, 6 insertions, 3 deletions
@@ -105,8 +105,8 @@ static int show_version; static struct option const longopts[] = { - {"before", no_argument, &separator_ends_record, 0}, - {"regex", no_argument, &sentinel_length, 0}, + {"before", no_argument, NULL, 'b'}, + {"regex", no_argument, NULL, 'r'}, {"separator", required_argument, NULL, 's'}, {"help", no_argument, &show_help, 1}, {"version", no_argument, &show_version, 1}, @@ -344,7 +344,10 @@ tac_seekable (int input_fd, const char *file) output (match_start, past_end); past_end = match_start; } - match_start -= match_length - 1; + + /* For non-regex matching, we can back up. */ + if (sentinel_length > 0) + match_start -= match_length - 1; } } } |