blob: cacce66c95faa7774f1ef88297bfa4928b8481be (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
#!/bin/sh
# grep -z with an anchor in the regex could mistakenly match text
# including a newline.
# Copyright 2016-2021 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
. "${srcdir=.}/init.sh"; path_prepend_ ../src
require_en_utf8_locale_
require_compiled_in_MB_support
LC_ALL=en_US.UTF-8
printf 'a\nb\0' > in || framework_failure_
fail=0
# These three would all mistakenly match, because the [a-b] range
# forced the non-DFA (regexp-using) code path.
returns_ 1 grep -z '^[a-b]*$' in || fail=1
returns_ 1 grep -z 'a[a-b]*$' in || fail=1
returns_ 1 grep -z '^[a-b]*b' in || fail=1
# Test these for good measure; they exercise the DFA code path
# and always worked
returns_ 1 grep -z '^[ab]*$' in || fail=1
returns_ 1 grep -z 'a[ab]*$' in || fail=1
returns_ 1 grep -z '^[ab]*b' in || fail=1
Exit $fail
|
