I've been on vacations and had no time to look further. Getting an initial plugin working is almost trivial, especially when you have a tmLanguage file (I used one I found for TextMate). However, I wanted to understand how to create such a highlighter from scratch (e.g. what tokens are available, what patterns to use, color definitions etc.), however this seems to be quite a big task, especially as these kinds of details are not documented. You can only get ideas from existing plugins.
Have you tried already to create a plugin based on the st2-antlr4 sublime repo?
Mike
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