#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
set -- ''; 

recho "${@}" x
recho "${@:1}" x

set -- "${@:1}"
echo "$#" 

set  -- '' ''

recho "${@:1}" x 
recho "${@:1:1}" x 

typeset -a A	# ksh93 needs this
A=('' '')
recho "${A[@]:0}" x 

recho "${A[@]:0:1}" x

recho "${A[@]:1}" x 

set -- ''

recho "${@/foo/bar}"
recho "${@^^[abcde]}"

A=( '' )

recho "${A[@]/foo/bar}"
recho "${A[@],,[abcde]}"