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Results 3 issues of ascii

This code is OK: ``` c int __attribute__((__nothrow__)) fct() {} ``` but this one failed: ``` c int * __attribute__((__nothrow__)) fct() {} ``` Error given is: `pycparser.plyparser.ParseError: :1:7: before: __attribute__`...

Add capitalize function like jinja. https://jinja.palletsprojects.com/en/3.1.x/templates/#jinja-filters.capitalize

It would be nice to have support for gdxAI [behavior tree file format](https://github.com/libgdx/gdx-ai/wiki/Behavior-Trees#text-format). Example: https://github.com/libgdx/gdx-ai/blob/master/tests/data/dog.tree