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#! /bin/sh
# Exercise bugs in grep-2.13 with -i, -n and an RE of ^$ in a multi-byte locale.
#
# Copyright (C) 2012-2021 Free Software Foundation, Inc.
#
# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the copyright
# notice and this notice are preserved.
. "${srcdir=.}/init.sh"; path_prepend_ ../src
require_en_utf8_locale_
LC_ALL=en_US.UTF-8
export LC_ALL
printf 'a\n\nb\n' > in || framework_failure_
printf '2:\n' > exp || framework_failure_
printf 'a\nb\n' > in2 || framework_failure_
grep -n -i '^$' in > out || fail=1
compare exp out || fail=1
# Expect no match: with grep-2.13 this would mistakenly exit 0
grep -i '^$' in2 > out && fail=1
compare /dev/null out || fail=1
Exit $fail
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