CoffeeScript is an attempt to expose the good parts of JavaScript in a simple way. The golden rule of CoffeeScript is: “It’s just JavaScript.” The code compiles one-to-one into the equivalent JS, and there …

CoffeeScript can be used both on the server, as a command-line compiler based on Node.js/V8, or to run CoffeeScript directly in the browser. This module contains the main entry functions for tokenizing, …

Handles command-line compilation of CoffeeScript into various forms: saved into .js files or printed to stdout or recompiled every time the source is saved, printed as a token stream or as the syntax tree, …

The CoffeeScript parser is generated by Jison from this grammar file. Jison is a bottom-up parser generator, similar in style to Bison, implemented in JavaScript.

Helper function for extracting code from Literate CoffeeScript by stripping out all non-code blocks, producing a string of CoffeeScript code that can be compiled “normally.”

If we’re on Node, patch child_process.fork so that Coffee scripts are able to fork both CoffeeScript files, and JavaScript files, directly.

The Lexer class reads a stream of CoffeeScript and divvies it up into tagged tokens. Some potential ambiguity in the grammar has been avoided by pushing some extra smarts into the Lexer.

The CoffeeScript language has a good deal of optional syntax, implicit syntax, and shorthand syntax. This can greatly complicate a grammar and bloat the resulting parse table.

Welcome to the hairiest method in all of CoffeeScript. Handles the inner loop, filtering, stepping, and result saving for array, object, and range comprehensions.

This Browser compatibility layer extends core CoffeeScript functions to make things work smoothly when compiling code directly in the browser. We add support for loading remote Coffee scripts via XHR, …