Hi John,

regarding defining new languages in the Smalltalk image, you might also be interested in Ohm/S and Gramada. Ohm/S is the Squeak/Smalltalk implementation of the successor of OMeta/2, which is called Ohm. It is somewhat different than OMeta as it separates a language definition into a syntax definition (a grammar) and several semantics defined in relation to the grammar rules.

You can get Ohm/S at: https://github.com/hpi-swa/Ohm-S

Additionally, I have developed a development environment for Ohm language definitions called Gramada. It includes tooling to see live results of parses on examples and editors with syntax highlighting and tools to navigate between rules via senders and implementors Further, it includes a parsing debugger and SUnit extensions for grammars. You can see a demo here: https://vimeo.com/180190846

A demo version of the environment can be downloaded here: https://patrickrein.de/gramadaDemo/gramadaDemo.zip .

I am also currently working on creating a stable release which will be linked from https://github.com/HPI-SWA-Lab/Gramada.

Bests
Patrick

________________________________________
From: Squeak-dev <squeak-dev-bounces at lists.squeakfoundation.org> on behalf of JOHN SARKELA <wiljo at mac.com>
Sent: Tuesday, May 16, 2017 14:33
To: squeak-dev at lists.squeakfoundation.org
Subject: [squeak-dev] Info about OMeta/2

Hi,

I’ve been experimenting with OMeta/2. It’s a lot of fun, but there is a reference to the undefined method OMeta2Compiler>>from:class:context:notifying. I implemented this as an empty method and things appear to be working. Could anyone enlighten me as to the intention of this message and why the reference to it exists in the code base?

John Sarkela