Takes in the Scheme source code and the current execution Environment and pipes the source code through Parse.parse/1 and Eval.eval/2.

Returns Tuple of output and an environment

Parameters

• program : String Scheme source code
• env : Map The current execution environment. Find more here Env.

Example

iex> Lispex.interpret("(begin (define a 5) (* a 4))", Env.new_env())
{5, %{..}}

REPL - Read Evaluate Print Loop for the Scheme code. Takes input from the user, pipes the output through interpret/2 and scheme_string/1 and finally prints it on console.

Example

iex> Lispex.repl
lispex> (begin (define a 4) (* a 5))
20
lispex> (if a<3 (* a 4) (* a 6))
24

Converts the output from interpret/2 to a Scheme style. Replaces ‘[‘ and ‘]’ with ‘(‘ and ‘)’.

Returns String

Example

iex> Lispex.scheme_string([1 2 [3 4]])
(1 2 (3 4))