Re: Bison & flex on start conditions

[Evan Lavelle]

Henrik Sorensen wrote:
> On Friday 13 January 2006 13.10, Steve Murphy wrote:

> > One that would be nice to smooth out would be the start-condition
> > capability in flex... and how to trigger it from the bison grammar end
> > of things.
>
> Can you be more specific why you want to do this ?

It gives you much more powerful context-sensitive parsing; it can remove 
the need for multi-token lookahead in many cases. One obvious 
application is detecting tokens which might be keywords, or might not 
be, depending on context. It would certainly have saved me a lot of trouble.

Evan