#!/bin/sh
# This use of our DFA-testing helper would fail for grep-2.21.

# Copyright 2014-2020 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

# Add "." to PATH for the use of dfa-match-aux.
path_prepend_ .

fail=0

echo 'dfaerror: invalid character class' > exp
LC_ALL=C ${CHECKER} dfa-match-aux '[[:foo:]]' a > out 2>&1
compare exp out || fail=1

Exit $fail