#! /bin/sh

# Test for POSIX options for grep:

# grep -E -f pattern_file file

# grep -F -f pattern_file file

# grep -G -f pattern_file file

#

# Copyright (C) 2001, 2006, 2009-2017 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

fail=0

cat <<EOF >patfile

radar

MILES

GNU

EOF

# match

echo "miles" |  grep -i -E -f patfile > /dev/null 2>&1

if test $? -ne 0 ; then

        echo "File_pattern: Wrong status code, test \#1 failed"

        fail=1

fi

# match

echo "GNU" | grep -G -f patfile  > /dev/null 2>&1

if test $? -ne 0 ; then

        echo "File_pattern: Wrong status code, test \#2 failed"

        fail=1

fi

# checking for no match

echo "ridar" | grep -F -f patfile > /dev/null 2>&1

if test $? -ne 1 ; then

        echo "File_pattern: Wrong status code, test \#3 failed"

        fail=1

fi

cat <<EOF >patfile

EOF

# empty pattern : every match

echo "abbcd" | grep -F -f patfile > /dev/null 2>&1

if test $? -ne 0 ; then

        echo "File_pattern: Wrong status code, test \#4 failed"

        fail=1

fi

cp /dev/null patfile

# null pattern : no match

echo "abbcd" | grep -F -f patfile > /dev/null 2>&1

if test $? -ne 1 ; then

        echo "File_pattern: Wrong status code, test \#5 failed"

        fail=1

fi

Exit $fail