Does anyone know the appropriate parser for "Ruby" files?

Hi,

I want to use “ *.rb ” and “ *.erb ” files with the Passolo.
Both “ *.rb ” and “ *.erb ” files are used with the programming language “Ruby” mainly used in Japan.

And I Can’t find the appropriate parser for the Ruby files.

Does anyone know the appropriate parser for Ruby files?
Or can I make the parser for Ruby???

Best regards