ocaml-to-js

A humble ocaml-to-javascript transpiler I made to study for my Functional Programming Course at McGill

Usage

Ocaml Lex and Grammar rules are described in ocaml.jison, however the actual parser is in ocaml.js, automatically generated by jison

First, install dependencies with:

npm install

A live interpreter-style transpiler can now be run with:

node interpreter.js

Type any valid ocaml expression, ending with ;; and the 'interpreter' will print the javascript equivalent.

Examples

Simple variable and function assignment examples

$ node interpreter.js
# let x = 1;;
var x = 1

# let y = 2.0;;
var y = 2.0

# let add a b = a + b;;
var add = function(a, b) {
  return a + b;
} 

# add x y ;;
add(x, y)

Updating Grammar Rules

Note after any changes are made to the grammer in ocaml.jison the parser must be re-compiled. First, install jison with:

npm install jison -g

Now you can generate the parser with:

jison ocaml.jison

this command must always be re-run afer any changes are made to ocaml.jison

interpreter.js can now be re-run with the new grammar rules.

License

Copyright 2017 Gabriel Downs
This project is free software, licensed under the GNU GPL.
Please see included LICENSE file, or http://www.gnu.org/licenses/ for more details.