Re: Do I need to invent a new type of parser?

stephen@estragon.uchicago.edu (Stephen P Spackman) writes:


      Below is my latest experimental grammar - you'll notice that the only
      SYNTACTICALLY reserved words are ; and . (though there are plenty of
      operators that you can't redefine).


Fascinating!


      Note that over half of the productions below concern comment attatchment,
      so this grammar is even simpler than it looks.


This is interesting in itself; I'm working on source-to-source
translation, and it sure would be nice if real languages handled comments
in so clean a fashion (ie, so that they could easily be jammed into the
parse tree, if desired).


- John
--
hagerman@ece.cmu.edu
[In syntax directed editors and other environments in which you need to hold
on to comments, it is my impression that the two possible approaches are
either to attach each comment to the preceding or following token, or else
to put a lot of comment productions in the grammar, as he did here. -John]
--

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