[CSS Text/G.C. for P.M.] Hyphenation & ligatures

Hello,

Some fonts have ligatures which are not specified in the Unicode
standard.  For instance, in 'Linux Libertine', U+E03C (private range)
is a ligature for 'tt'.

To use the special ligature, one can write:

  fied

And to hyphenate the word 'fitted', one can write something like:

  <span style='hyphenate: auto'>fitted</span>

....according to the 'Generated Content for P.M.' draft.

How to combine both? The idea would be to hyphenate 'fitted' if
convenient, otherwise, to use the ligature.  The hyphenation model
offers no way to work with non-standard ligatures.

++
Thomas