Translator to Scala

I’m working on the project to build the translation services between
different programming languages. Recently I have added the translator
from COBOL, NATUARL and PL/I to Scala, which you could find on
http://inccode.com site.

Scala proved to be the perfect language for such migration purpose.
I’m still working on improving a quality and accuracy of this
translation and will be grateful for any advice what patterns are most
suitable for translating to Scala.