# (C) 2010 magicant

# Completion script for the "cmp" command.
# Supports POSIX 2008, GNU diffutils 3.0, FreeBSD 8.1, OpenBSD 4.8, NetBSD 5.0,
# SunOS 5.10, HP-UX 11i v3.

function completion/cmp {

	case $("${WORDS[1]}" --version 2>/dev/null) in
		(*'diffutils'*) typeset type=GNU ;;
		(*)             typeset type="$(uname 2>/dev/null)" ;;
	esac
	case $type in
		(GNU) typeset long=true ;;
		(*)   typeset long= ;;
	esac

	typeset OPTIONS POSIXOPTIONS ADDOPTIONS ARGOPT PREFIX
	POSIXOPTIONS=( #>#
	"l ${long:+--verbose}; print all differing byte values"
	"s ${long:+--silent --quiet}; print nothing"
	) #<#

	ADDOPTIONS=()
	case $type in
	(GNU)
		ADDOPTIONS=("$ADDOPTIONS" #>#
		"b --print-bytes; print differing byte values in ^-notation"
		"i: --ignore-initial:; specify number of bytes to skip"
		"n: --bytes:; specify number of bytes to compare at most"
		"--help"
		"v --version; print version info"
		) #<#
		;;
	(FreeBSD)
		ADDOPTIONS=("$ADDOPTIONS" #>#
		"h; don't follow symbolic links"
		"x; print all differing byte values in hexadecimal"
		"z; firstly compare by size"
		) #<#
		;;
	esac

	OPTIONS=("$POSIXOPTIONS" "$ADDOPTIONS")
	unset POSIXOPTIONS ADDOPTIONS

	command -f completion//parseoptions ${long:+-es}
	case $ARGOPT in
	(-)
		command -f completion//completeoptions
		;;
	(i|--ignore-initial)
		;;
	(n|--bytes)
		;;
	(*)
		command -f completion//getoperands
		if [ ${WORDS[#]} -lt 2 ]; then
			complete -f
		fi
		;;
	esac

}


# vim: set ft=sh ts=8 sts=8 sw=8 noet:
