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Filename : _pfexec

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#compdef pfexec

# This is a _values-like function that completes privileges and !-prefixed
# privileges, comma-separated, and unique.
_privset() {
	local expl p
	local -a privs

	privs=( ${(f)"$(ppriv -l)"} all none zone basic )

	# Ignore existing values
	compset -P '*,'
	# Ignore a leading !, maybe backslash-quoted
	compset -P '\\#!'

	# Remove already-referenced privs
	for p in ${(s:,:)${IPREFIX//\\#\!/}}; do
		privs=( ${privs:#$p} )
	done

	_wanted privs expl 'privilege' compadd -qS , -a privs
}

_pfexec() {
 	_arguments \
		'-P[privileges to acquire]:privspec:_privset' \
 		'(-):command name: _command_names -e' \
 		'*::arguments: _normal'
}

_pfexec "$@"