#!/bin/sh -u
#
#     $0 [ arguments...]
#
# A script that classifies arguments given on the command line
# to tell if they are empty (the empty string) or not.
#
# A list is built by the script and output at the end.
# The list has "comma blank" separated items.
#
# -IAN! idallen@ncf.ca  June 2001

export PATH=/bin:/usr/bin
umask 022

# Start with an empty list and append the non-empty arguments.
#
# The separator between arguments is empty for the first argument.
# After putting in the first argument, the separator becomes ", " for
# all subsequent arguments.  The result is a nice-looking list.
#
arglist=""
separator=""
for arg do
	if [ "$arg" = "" ]; then
		echo "Found an empty argument."
	else
		arglist="$arglist$separator$arg"
		separator=", "
	fi
done

echo "The list of non-empty arguments is: $arglist"

exit 0