# (C) 2010-2021 magicant

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

function completion/ex {

	case $(echo :q! |
		HOME=/dev/null "${WORDS[1]}" -c q! --version 2>/dev/null) in
		(VIM*)
			command -f completion//reexecute vim
			return
	esac
	typeset type="$(uname 2>/dev/null)"

	typeset OPTIONS POSIXOPTIONS ADDOPTIONS ARGOPT PREFIX
	POSIXOPTIONS=( #>#
	"c:; specify a command to be executed after starting up"
	"R; read-only mode"
	"r; recover unsaved files"
	"t:; specify an identifier to jump"
	"w:; specify the value of the window option"
	) #<#
	case ${WORDS[1]##*/} in (e*)
		POSIXOPTIONS=("$POSIXOPTIONS" #>#
		"s; non-interactive batch processing mode"
		"v; operate as the vi editor"
		) #<#
	esac

	ADDOPTIONS=()
	case $type in (*BSD)
		ADDOPTIONS=("$ADDOPTIONS" #>#
		"F; don't copy the entire file when opening it"
		"S; enable the secure option"
		) #<#
		case ${WORDS[1]##*/} in (v*)
			ADDOPTIONS=("$ADDOPTIONS" #>#
			"e; operate as the ex editor"
			) #<#
		esac
		case $type in (FreeBSD|NetBSD)
			ADDOPTIONS=("$ADDOPTIONS" #>#
			"G; enable the gtagsmode option"
			) #<#
		esac
	esac
	case $type in (SunOS|HP-UX)
		ADDOPTIONS=("$ADDOPTIONS" #>#
		"C; enable encryption and assume all text has been encrypted"
		"l; enable the lisp option"
		"x; enable encryption"
		) #<#
	esac
	case $type in
	(SunOS)
		ADDOPTIONS=("$ADDOPTIONS" #>#
		"L; print list of recoverable files"
		"V; echo input commands to the standard error"
		) #<#
		case ${WORDS[1]##*/} in (v*)
			ADDOPTIONS=("$ADDOPTIONS" #>#
			"S; don't assume the tags file is sorted"
			) #<#
		esac
		;;
	(HP-UX)
		case ${WORDS[1]##*/} in (v*)
			ADDOPTIONS=("$ADDOPTIONS" #>#
			"V; echo input commands when sourcing a file"
			) #<#
		esac
		;;
	esac

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

	command -f completion//parseoptions
	case $ARGOPT in
	(-)
		command -f completion//completeoptions
		;;
	(c)
		;;
	(t)
		if [ -r tags ]; then
			complete -P "$PREFIX" -R "!_TAG_*" -- \
				$(cut -f 1 tags 2>/dev/null)
		fi
		;;
	(w)
		;;
	(*)
		complete -f
		;;
	esac

}


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