GxJS: (G)erbil E(x)tended (J)avaScript (S)cheme*

“One lang to rule them all and in parens let bind them.”

Introduction

I tend to forget the differing syntax and semantics amoung the billions[fn:1] of programming languages I need to read or write overy month.

Sometimes a meta-layer on top is just the thing I find very sexp. Thus, GxJS: A Meta-Scheme runtime for JavaScript.

This is a Monorepo for a few packages in a few languages that all come together.

Gerbil package: :js

For some syntax to make JS FFI easier.

gxjs

An npm package that has a gerbil-scheme runtime and some nice extensions for working with JavaScript from gerbil, a scheme dialect.

gxjs-loader

A loader for webpack that converts Gerbil files to JavaScript using a local install of gxc and gsc and requires the gxjs runtime.

gerbil-scheme

A runtime for the Gerbil Scheme meta-dialect. Will including loading of Gerbil modules at runtime just like gxi, the interpreter, allows.

gerbil-loader

A loader which uses the gerbil-scheme runtime and calls the gxjs-loader.

~gambit-scheme

A runtime generated by the Gambit Scheme environment that allows running of Gambit modules. Gerbil runs on top of Gambit and eventually transpiles to code which Gambit then transpiles to javascript. This run time runs that code.

gambit-loader

A loader which uses the gambit-scheme runtime and calls the gxjs-loader.

Installation

The “stable” packages are all available to load via npm or yarn.

yarn add gxjs
yarn add gxjs-loader gerbil-loader gambit-loader --dev
yarn add gerbil-scheme
yarn add gambit-scheme

Emacs Indentation and Highlighting

  (defun js-gerbil-syntax ()
    (interactive)

    ;;(gerbil-put-indent '(.begin .or .any) 0)
    (gerbil-put-indent '(js\#function)  1)
    (gerbil-put-indent '({)  2)

    ;;(gerbil-fontlock-add
     ;;(cons
      ;;(concat
       ;;"(" (regexp-opt '(".let*" ".begin" ".begin0" ".or" ".any" ".not")
       ;;                t)
       ;;"\\>")
      ;;;'(1 'font-lock-keyword-face  )))

     )

     (add-hook 'gerbil-mode-hook 'js-gerbil-syntax)

* Footnotes

[fn:1] Ok, likely under 15 or so. But still!