ponylang-mode: An emacs mode for editing Pony code

"Pony is an object-oriented, actor-model, capabilities-secure, high performance programming language." - ponylang.org

ponylang-mode is an Emacs mode for editing Pony code.

At the moment, ponylang-mode is fairly new and immature. From the standpoint of indentation, it should work for about 95% of use cases. In order to work for the rest, it is going to require a rewrite. If you are interested in contributing to Emacs tooling for Pony, please get in touch. I'm happy to accept contributions and feedback.

Big thanks to Austin Bingham who did the first version of ponylang-mode. We wouldn't be where we are now without your initial work Austin!

Installation

You can install ponylang-mode via melpa. The fundamental way is with package-install:

M-x package-install ponylang-mode

Then just make sure you (require ponylang-mode) at some point in your initialization.

Configuration

Right now ponylang-mode doesn't take a lot of configuration (i.e. it's too simple to need any). If you want to make sure your indentation matches that in the ponyc project's examples, you can use something like this:

(add-hook
  'ponylang-mode-hook
  (lambda ()
    (set-variable 'indent-tabs-mode nil)
    (set-variable 'tab-width 2)))

Using use-package

If you're using the excellent use-package to manage your configuration, you can use something like the following to install and configure ponylang-mode:

(use-package ponylang-mode
  :ensure t
  :config
  (progn
    (add-hook
     'ponylang-mode-hook
     (lambda ()
       (set-variable 'indent-tabs-mode nil)
       (set-variable 'tab-width 2)))))

Tests

ponylang-mode has an ert-based regression test suite. To run it, evaluate ponylang-tests.el and run M-x ert RET t RET.