RE: Haskell 98 progress...

[Simon Peyton-Jones]

> I REALLY dislike the idea of having my comments lexed.  Can't we leave
> this part of the language spec alone?

OK, ok, ok.  I am suitably berated and I yield.

*  Comments *start* with a lexeme, as previously discussed, and I think
   this is fine.

*  The opening lexeme may be '--', '---' etc for ordinary comments, or
   '{-' for nested comments

* Note that '{--' is not a lexeme at all, so the maximal munch rule won't
  munch it.  Hence '{--' lexes as '{-' followed by stuff; it does start 
  a nested comment.

* Nested comments are closed, as in all earlier Haskells, by character by
  character matching for -}.  (Modulo nesting, as now.)


OK?

Simon