Lispex

v0.1.0

Lispex v0.1.0 Parse View Source

Tokenizer and parser for the Lisp source code

Link to this section Summary

Functions

atom(token)

Converts a String token to its atomic form

parse(program)

Turns the given Lisp program into an Abstract syntax tree by calling tokenize/1 and recursively calling ‘parse/2’ a private function in the Parse module

tokenize(str)

Splits the lisp source code by spaces. Ensures spaces between ‘(‘ and ‘)’ by replacing them with ‘ ( ‘ and ‘ ) ‘

Link to this section Functions

Link to this function atom(token) View Source

Converts a String token to its atomic form.

Returns Integer, Float or an Atom

Parameters

Link to this function parse(program) View Source

Turns the given Lisp program into an Abstract syntax tree by calling tokenize/1 and recursively calling ‘parse/2’ a private function in the Parse module.

Returns List

Parameters

  • program : String Lisp source code

Example 

iex> Lispex.parse("(begin (define r 10) (* pi (* r r)))")
[["begin", ["define", "r", 10], ["*", "pi", ["*", "r", "r"]]]]
Link to this function tokenize(str) View Source

Splits the lisp source code by spaces. Ensures spaces between ‘(‘ and ‘)’ by replacing them with ‘ ( ‘ and ‘ ) ‘.