1 files changed, 58 insertions, 0 deletions
diff --git a/src/grep/tests/turkish-eyes b/src/grep/tests/turkish-eyes
new file mode 100755
index 0000000..2969d09
--- /dev/null
+++ b/src/grep/tests/turkish-eyes
@@ -0,0 +1,58 @@
+#!/bin/sh
+# Ensure that case-insensitive matching works with all Turkish i's
+
+# Copyright (C) 2014-2021 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/>.
+
+. "${srcdir=.}/init.sh"; path_prepend_ ../src
+
+require_compiled_in_MB_support
+
+fail=0
+
+L=tr_TR.UTF-8
+
+# Check for a broken tr_TR.UTF-8 locale definition.
+# In this locale, 'i' is not a lower-case 'I'.
+echo I | LC_ALL=$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
+  for pat in i I "$i" "$I" " " : "$search_str"; do
+    LC_ALL=$L grep $opt -i "$pat" in > out || fail=1
+    compare in out || fail=1
+
+    case $pat in
+      i|"$I") printf "$I\\ni\\n";;
+      I|"$i") printf "I\\n$i\\n";;
+      :) printf ":\\n:\\n";;
+      ' ') printf " \\n";;
+      *) cat in;;
+    esac >exp || framework_failure_
+    LC_ALL=$L grep -o $opt -i "$pat" in > out || fail=1
+    compare exp out || fail=1
+  done
+done
+
+Exit $fail