# (C) 2010 magicant

# Completion script for the "sed" command.
# Supports POSIX 2008, GNU sed 4.2.1, FreeBSD 8.1, OpenBSD 4.8, NetBSD 5.0,
# Mac OS X 10.6.4, SunOS 5.10, HP-UX 11i v3.

function completion/sed {

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

	typeset OPTIONS ARGOPT PREFIX
	OPTIONS=( #>#
	"e: ${long:+--expression:}; specify a sed script directly"
	"f: ${long:+--file:}; specify a file containing sed script"
	"n ${long:+--quiet --silent}; suppress default output"
	) #<#

	case $type in
	(GNU)
		OPTIONS=("$OPTIONS" #>#
		"b --binary; don't convert CR-LF into LF"
		"i:: --in-place::; modify files in-place, making backups with the specified filename suffixes"
		"l: --line-length:; specify the line length for the l command"
		"r --regexp-extended; use extended regular expression"
		"s --separate; treat each operand file separately"
		"u --unbuffered; disable input/output buffering"
		"--follow-symlinks; follow symbolic links in operands (with -i)"
		"--posix; disable non-POSIX extensions"
		"--help"
		"--version"
		) #<#
		;;
	(*BSD|Darwin)
		OPTIONS=("$OPTIONS" #>#
		"a; open files for the w command only when needed"
		"E; use extended regular expression"
		) #<#
		case $type in
		(FreeBSD|Darwin)
			OPTIONS=("$OPTIONS" #>#
			"i:; modify files in-place, making backups with the specified filename suffixes"
			"l; disable output buffering"
			) #<#
			case $type in (FreeBSD)
				OPTIONS=("$OPTIONS" #>#
				"I:; like -i, but don't treat input files separately"
				) #<#
			esac
			;;
		(OpenBSD)
			OPTIONS=("$OPTIONS" #>#
			"u; disable output buffering"
			) #<#
			;;
		esac
		;;
	esac

	command -f completion//parseoptions ${long:+-es}
	case $ARGOPT in
	(-)
		command -f completion//completeoptions
		;;
	(e|--expression)
		;;
	(*)
		complete -P "$PREFIX" -f
		;;
	esac

}


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