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#!/bin/sh
# Ensure that case-insensitive matching works with all Turkish i's

# Copyright (C) 2014-2019 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_compiled_in_MB_support

fail=0

L=tr_TR.UTF-8

# Check for a broken tr_TR.UTF-8 locale definition.
# In this locale, 'i' is not a lower-case 'I'.
echo I | LC_ALL=$L grep -i i > /dev/null \
    && skip_ "your $L locale appears to be broken"

# Ensure that this matches:
# printf 'I:İ ı:i\n'|LC_ALL=tr_TR.utf8 grep -i 'ı:i I:İ'
I=$(printf '\304\260') # capital I with dot
i=$(printf '\304\261') # lowercase dotless i

      data="I:$I $i:i"
search_str="$i:i I:$I"
printf "$data\n" > in || framework_failure_

for opt in -E -F -G; do
  LC_ALL=$L grep $opt -i "$search_str" in > out || fail=1
  compare out in || fail=1
done

Exit $fail