#!/bin/bash
set -eu
if [[ "$#" -eq 0 ]] ; then
   read -p 'Lisp Expression: ' expression
else
    expression="$*"
fi
echo "before: ${expression}"
multiWordsWithoutSurroundingParens='/^ *[^( ][^ ]* [^ ]*[^ )] *$/'
multiWordsWithoutSurroundingParens='^[^( ][^ ]* [^ ]*[^ )]$'
if [[ "${expression}" =~ $multiWordsWithoutSurroundingParens ]] ; then
    expression="(${expression})"
fi
echo "after:  ${expression}"
exec clisp -norc -q -x "${expression}"