[relaxng-user] understanding why trang is upset

[Sebastian Rahtz]

The exchange about preprocessing RNG to make it acceptable to trang to 
create DTDs
prompted me to revisit my own situation. Some careful staring reduced 
the problem to
a series of

   error: sorry, cannot handle this kind of "choice"

messages. But now I am stuck. I really do not understand what trang is 
objecting to
in things like this

       macro.paraContent =
          (text | class.phrase | class.inter | class.Incl)*

If any of you clever folk have a moment to spare, can you run trang
on http://users.ox.ac.uk/~rahtz/rahtz.rng and see if you can explain
the error messages?


Sebastian Rahtz