#!/bin/bash

# If this file has already been sourced, just return
test $(LISHP_SH+true)TODO  && return
declare -g LISHP_SH = 'true'TODO 
declare -g VERBOSE = ''
if test $(1+isset) && test $1 == "-verbose" { 
    setglobal VERBOSE = 'true'
    shift
} else {
    setglobal VERBOSE = 'false'
}


source ${BASH_SOURCE%/*}/common.sh
source ${BASH_SOURCE%/*}/variables.sh
source ${BASH_SOURCE%/*}/variables.arraylist.sh
source ${BASH_SOURCE%/*}/variables.atom.sh
source ${BASH_SOURCE%/*}/variables.linkedlist.sh
source ${BASH_SOURCE%/*}/variables.map.sh
source ${BASH_SOURCE%/*}/variables.queue.sh
source ${BASH_SOURCE%/*}/variables.stack.sh
source ${BASH_SOURCE%/*}/callable.sh
source ${BASH_SOURCE%/*}/callable.lambda.sh
source ${BASH_SOURCE%/*}/environment.sh
source ${BASH_SOURCE%/*}/evaluator.sh
source ${BASH_SOURCE%/*}/evaluator.functions.builtin.sh
source ${BASH_SOURCE%/*}/parser.sh
source ${BASH_SOURCE%/*}/logger.sh
source ${BASH_SOURCE%/*}/specialforms.sh
source ${BASH_SOURCE%/*}/specialforms.if.sh
source ${BASH_SOURCE%/*}/specialforms.lambda.sh
source ${BASH_SOURCE%/*}/specialforms.let.sh
source ${BASH_SOURCE%/*}/specialforms.letstar.sh

$VERBOSE && echo "Sourced libraries!"

# (lambda (x y)
#     (+ x y)

# per: http://stackoverflow.com/questions/6980090/bash-read-from-file-or-stdin
# This will read from the filename specified as a parameter...
# or from stdin if none specified

read -r -d '' code < $(1:-/proc/${$}/fd/0)

$VERBOSE && echo "Code read!"
$VERBOSE && echo =================
$VERBOSE && echo $code
$VERBOSE && echo =================

if ! parser::parse::multiExpression $(code) {
    echo "Could not parse input
====
$(code)
===="
    exit 1
}
$VERBOSE && echo "Parsed!"
#variable::printMetadata 
#variable::toSexp "${PARSER_PARSED}" ; echo ${RESULT}
#variable::debug "${PARSER_PARSED}" ; echo ${RESULT}

environment::newTODO  ; declare env = $(RESULT)
evaluator::setup_builtins $(env)
$VERBOSE && echo "Environment setup!"

evaluator::evalFromLinkedList $(env) $(PARSER_PARSED)
variable::debug $(RESULT)
$VERBOSE && echo "Done!"
$VERBOSE && echo =================
echo $RESULT
$VERBOSE && echo =================