Erlang JavaScript Parse Transform

Goal:

Make Erlang usable for online editors and live code teaching platforms like Code School and Code Combat.

Prerequisites:

Erlang: Best way is to install through brew install erlang on Mac or build from source.

Shen: A project from n2o folks that compiles erlang to JavaScript, node.js, Browser, Client-Side FRP

Esprima: Build JS AST for the generated JS code.

Usage:

Node.js

var erlangjs = require("erlang-shen-js");

//Wrap erlang code with: 
//"-module(tmp).\n-compile({parse_transform, shen}).\n-compile(export_all).\n-js([start/0]).\nstart() ->\n";
erlangjs.wrap(code, function(ast) {
      //ast: the js obj holding the AST tree
});

//Parse complete erlang code
erlangjs.parse(code, function(ast) {
      //ast: the js obj holding the AST tree
});

Commandline Options:

-h, --help           Output usage information
-V, --version        Output the version number
-t, --ast            Output JS ast tree
-o, --output <file>  Output to a JS file to custom location

Install

Run npm install erlang-shen-js -g

Roadmap

1. multiple clauses for lambdas
2. list comprehensions
3. more JavaScript/OTP mappings
4. if statement :-)

Credits

Creator of Shen:

* Maxim Sokhatsky
* Andrew Zadorozhny

License

(The MIT License)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.