This started as a weekend project to bring Statamic tag syntax highlighting to Sublime Text. I pulled a lot of the information for this from this ExpressionEngine bundle: https://github.com/fcgrx/ExpressionEngine2-Sublime-Text-3-Bundle and looking at this documentation: http://docs.sublimetext.info/en/latest/extensibility/syntaxdefs.html.
In all honesty, I still don't understand why much of the syntax works. I was able to port the Sublime Text version over to Atom. I have a much better understanding of how grammars work now, so future versions should work much better.
I called this Antlers because it was just fun... I mean, heck... everything about Statamic is fun.
Statamic (http://statamic.com) is a no-database, flat-file content management system that is far more capable than you would ever expect it to be. It's crazy fun to develop with as well.
The syntax should now work for most (nearly all?) Statamic 2 tags, parameters and variables. There are now three text files in the repo to help keep up with all of these goodies.
I still need to add some stuff for the Raven and Bloodhound add-ons (http://statamic.com/add-ons). Statamic version 2 is on the way, and Raven and Bloodhound are now built-in, so the need for this may change.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.