Re: FYI: default %printer/%destructor

[Joel E. Denny]

On Wed, 22 Nov 2006, Hans Aberg wrote:

> The proposal I made does not use "{ }", except in Bison actions.

Sorry, I was thinking of ISO EBNF.

> > Do you have a specific proposal in mind?
> 
> I already gave one: using U+2192 '???', which in ASCII looks like "->".

First, given you've still chosen an ASCII representation, I don't see the 
benefit of Unicode here.  Second, I don't see how this addresses the issue 
we're discussing anyway: names for semantic values and locations.

> You seem to have made your mind about
> these variables, and want to adapt the other stuff around it. I wonder if this
> is wise: if clashes can be avoided that way, the combination might be
> cumbersome.

I tried considering alternatives, but I think it may be a lost cause.  
More importantly, when it comes to EBNF, I'm not sure it's worthwhile.  
Do you know of someone who's actually going to contribute EBNF support to 
Bison?