[tex-hyphen] ptex-specific patterns

[Arthur Reutenauer]

> I also read that explanation (but not very thoroughly). My impression
> was: ptex understands any kind of input as long as it is a valid
> Japanese character, and produces random 8-bit stuff otherwise (which
> could coincide with an 8-bit font encoding for western europe, but only
> if you are both careful and lucky).

  I wouldn't have said it that way, but that seems like a good summary :-)

	Arthur