Hi.

I did the same and I came upon this post.

I wrote a little program in ELISP to do it.
Currently it works but I have to fix some things: patterns should not match
at the end of the word.

Since my purpose was not to hyphenate mails or output of console
I didn't wrote anything to integrate it with the available filling
or searching functions.

It just takes a word and returns a list of word "slices".

But now I'm thinking that this is some general task. Not specific to
Emacs nor TeX. Shouldn't it be a system library?

To try it:
M-: (load-patterns "FILENAME.DIC")
M-x ly:hyphenate-region

On Tue, Mar 27, 2012 at 04:01:30PM +0000, Tim Landscheidt wrote:
> Hi,
> 
> time and time again I have searched for "Emacs" and "hyphen-
> ation", and so little results came up that I looked up "hy-
> phenation" again to make sure that I hadn't misspelled it.
> It seems that it is not a feature often asked for as the
> typical workflow of text processing in Emacs usually in-
> volves TeX or something similar, but I do find myself often
> in need to hyphenate texts like mails or output of console
> programs.  With Google Summer of Code around, I'd like to
> propose the following idea "Hyphenation in GNU Emacs":
>