Originally Posted by ixtab
Edit: One question: did you find some documentation on the hyphenations file format somewhere, or did you just use trial and error? It may be helpful for other people if you could describe how one can make changes to these files, as they look pretty cryptic indeed.
The hyphenation file really look totally cryptic and, for the programming form, undocumented. I've discovered how to do something by reading the comments about the effects each thing have in words and portuguese rules and, to be sincere, is is simple and so "force-based", as you have to include each variant of something manually, with each vowel and vowel with accent mark possible.
I don't understand even a third of the thing, and maybe my solution is not the most elegant, but it works.
In the end, everything I've changed without being a comment is the following line:
Now that you asked, I think it's somewhat documented here: http://offo.sourceforge.net/hyphenation/index.html