Example of running LISP in Dart

lisp.dart

void main() {
  // LISP Scope could be populated with reuqired values
  // to provide interop between Dart and LISP
  final baseScope = LispScope({
    '*': Multiplication('*'),
    '+': Addition('+'),
    'offset': OffsetContainer('offset'),
    'print': Print('print'),
    'call': CallMethod('call'),
  });

  // Expression is converted to AST
  final expression = parse('''
    (
      (define a (offset 10 10))
      (define b (offset 20 20))
      (define c b)
      (define d c)
      (call d 'scale' 2)
      (print (+ a b))
    )
  ''');

  // Which can be evaluated with arbitrary scope
  print(expression.eval(baseScope));
}