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# $FreeBSD: releng/12.0/bin/sh/tests/expansion/trim9.0 292758 2015-12-26 22:27:48Z jilles $

# POSIX does not specify these but they occasionally occur in the wild.
# This just serves to keep working what currently works.

failures=''
ok=''

testcase() {
	code="$1"
	expected="$2"
	oIFS="$IFS"
	eval "$code"
	IFS='|'
	result="$#|$*"
	IFS="$oIFS"
	if [ "x$result" = "x$expected" ]; then
		ok=x$ok
	else
		failures=x$failures
		echo "For $code, expected $expected actual $result"
	fi
}

testcase 'shift $#; set -- "${*#Q}"'		'1|'
testcase 'shift $#; set -- "${*##Q}"'		'1|'
testcase 'shift $#; set -- "${*%Q}"'		'1|'
testcase 'shift $#; set -- "${*%%Q}"'		'1|'
testcase 'set -- Q R; set -- "${*#Q}"'		'1| R'
testcase 'set -- Q R; set -- "${*##Q}"'		'1| R'
testcase 'set -- Q R; set -- "${*%R}"'		'1|Q '
testcase 'set -- Q R; set -- "${*%%R}"'		'1|Q '
testcase 'set -- Q R; set -- "${*#S}"'		'1|Q R'
testcase 'set -- Q R; set -- "${*##S}"'		'1|Q R'
testcase 'set -- Q R; set -- "${*%S}"'		'1|Q R'
testcase 'set -- Q R; set -- "${*%%S}"'		'1|Q R'
testcase 'set -- Q R; set -- ${*#Q}'		'1|R'
testcase 'set -- Q R; set -- ${*##Q}'		'1|R'
testcase 'set -- Q R; set -- ${*%R}'		'1|Q'
testcase 'set -- Q R; set -- ${*%%R}'		'1|Q'
testcase 'set -- Q R; set -- ${*#S}'		'2|Q|R'
testcase 'set -- Q R; set -- ${*##S}'		'2|Q|R'
testcase 'set -- Q R; set -- ${*%S}'		'2|Q|R'
testcase 'set -- Q R; set -- ${*%%S}'		'2|Q|R'
testcase 'set -- Q R; set -- ${@#Q}'		'1|R'
testcase 'set -- Q R; set -- ${@##Q}'		'1|R'
testcase 'set -- Q R; set -- ${@%R}'		'1|Q'
testcase 'set -- Q R; set -- ${@%%R}'		'1|Q'
testcase 'set -- Q R; set -- ${@#S}'		'2|Q|R'
testcase 'set -- Q R; set -- ${@##S}'		'2|Q|R'
testcase 'set -- Q R; set -- ${@%S}'		'2|Q|R'
testcase 'set -- Q R; set -- ${@%%S}'		'2|Q|R'
testcase 'set -- Q R; set -- "${@#Q}"'		'2||R'
testcase 'set -- Q R; set -- "${@%R}"'		'2|Q|'
testcase 'set -- Q R; set -- "${@%%R}"'		'2|Q|'
testcase 'set -- Q R; set -- "${@#S}"'		'2|Q|R'
testcase 'set -- Q R; set -- "${@##S}"'		'2|Q|R'
testcase 'set -- Q R; set -- "${@%S}"'		'2|Q|R'
testcase 'set -- Q R; set -- "${@%%S}"'		'2|Q|R'

test "x$failures" = x