# (C) 2010 magicant

# Completion script for the "comm" command.
# Supports POSIX 2008, GNU coreutils 8.4, FreeBSD 8.1, OpenBSD 4.8, NetBSD 5.0,
# Mac OS X 10.6.3, SunOS 5.10, HP-UX 11i v3.

function completion/comm {

	case $("${WORDS[1]}" --version 2>/dev/null) in
		(*'coreutils'*) 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=( #>#
	"1; don't print column of lines unique to file 1"
	"2; don't print column of lines unique to file 2"
	"3; don't print column of lines common to both files"
	) #<#

	ADDOPTIONS=()
	case $type in
	(GNU)
		ADDOPTIONS=("$ADDOPTIONS" #>#
		"--check-order; check if files are correctly sorted"
		"--nocheck-order; don't check if files are correctly sorted"
		"--output-delimiter:; specify a delimiter to separate columns"
		"--help"
		"--version"
		) #<#
		;;
	(OpenBSD|NetBSD)
		ADDOPTIONS=("$ADDOPTIONS" #>#
		"f; case-insensitive comparison"
		) #<#
		;;
	(FreeBSD|Darwin)
		ADDOPTIONS=("$ADDOPTIONS" #>#
		"i; case-insensitive comparison"
		) #<#
		;;
	esac

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

	command -f completion//parseoptions ${long:+-es}
	case $ARGOPT in
	(-)
		command -f completion//completeoptions
		;;
	(--output-delimiter)
		;;
	(*)
		complete -f
		;;
	esac

}


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