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#!/bin/sh

testmatch() {
	case $1 in
	( $2 ) printf ok1 ;;
	( * ) printf fail1 ;;
	esac
	case $1,$2 in
	( $2,"$2" ) printf ok2 ;;
	( * ) printf fail2 ;;
	esac
	case $1, in
	( $2, ) printf ok3 ;;
	( * ) printf fail3 ;;
	esac
	case ,$2 in
	( ,"$2" ) printf ok4 ;;
	( * ) printf fail4 ;;
	esac
	case "$1,$2" in
	( $2,"$2" ) printf ok5 ;;
	( * ) printf fail5 ;;
	esac
	echo
}

for c in $'\1' $'\2' $'\177'; do
	echo -n "--- testing: "
	echo "$c" | od -t a | awk 'NR==1 { print $2 } '
	testmatch "${c}" "\\${c}"
	testmatch "${c}x" "\\${c}\\x"  # bash-git fails case 2 and 5 for $'\1'
	testmatch "${c}x" "${c}\\x"
	testmatch "${c}x" "${c}x"
	testmatch "${c}x" "\\${c}x"
	testmatch "x${c}" "\\x\\${c}"
	testmatch "x${c}" "x\\${c}"
done

match() { case $1 in ( $2 ) ;; ( * ) return 1 ;; esac; } 
match $'? *x\1y\177z' $'??\\*\\x\\\1\\y\\\177\\z' || echo bad 6