> Now that I have acquired more understanding, I don't have problems
> reading the manual. But I had had a hard time before!
The standard documentation problem of developer vs. user...
>> Actually, it's the same object, containing a ref- erence to both
>> the input character and the corre- sponding output glyph.
>
> OK, but the reference to the input character is allowed to be
> 'null', then?
This is not possible. How shall come a glyph-only object into
existence? I don't count ligatures and similar things here since they
also need input characters to exist.
> But I also provided another example -- the one that disables
> hyphenation at a certain letter -- and it seems to be a bug or, at
> least, this behaviour or side effect is neither evident nor
> documented.
Well, yes, right. I would call it a feature, since no real-world
documents are affected in any way. Do you want to document it?
Werner