Re: [CEDET-devel] Wisent and Lex

[David P. <dav...@wa...>]

> I finally tracked down yet another lexical problem I was having.
> This time I had forgotten to add `semantic-lex-string' to my lexer.
> It turned out strings only occurred inside a semantic-list.  The
> error thrown for unknown syntax was captured by wisent, and the
> resultant parsing pattern was very strange and did not reveal the
> inner problem in a rational way.
> 
> I'm guessing the bovine parser may do the same thing.  I can see two
> ways to help promote the lexical error where a developer can see it
> when it would be useful.
> 
> 1) Create a new error symbol we can throw with `signal' that a
>    traditional `condition-case' element would miss.
> 
> 2) Use `throw' to throw lexical errors out to a point where they can
>    be reported.
> 
> Thoughts?

I must admit I don't clearly see the problem.  It would be nice if
you could provide a small example.

> In the meantime, I have just finished the first pass on my first
> wisent parser.  Yay!

Yay ;)

David