Proto for Boost mailing list page: Re: [proto] Thoughts on traversing proto expressions and reusing grammar

Subject: Re: [proto] Thoughts on traversing proto expressions and reusing grammar
From: Thomas Heller (thom.heller_at_[hidden])
Date: 2010-10-14 02:56:40

On Thursday 14 October 2010 08:29:00 Eric Niebler wrote:
> On 10/13/2010 11:08 PM, Thomas Heller wrote:
> > On Wednesday 13 October 2010 22:46:40 Eric Niebler wrote:
> >> On 10/13/2010 11:54 AM, Thomas Heller wrote:
> >>> On Wednesday 13 October 2010 20:15:55 Eric Niebler wrote:
> > <snip>
> > See my other post about comments on this, I think we agree on the rest.
> > The only problem we are diverging right know seems to be that "visitor"
> > I proposed. See another attempt to justify, and possibly explaining it
> > better below.
> 
> <snip>
> 
> Very quickly before I turn in for the night ... this goes a long way to
> making it clearer. Thanks. I'm going to take my own crack at this
> problem and see if I end up in the same place you did. Then we can
> compare/contrast.

I think having an alternate solution is one way to go. I am very curios on 
what you will com up with :)

> Oh, and I think you're right about proto::make_expr. It cannot make
> nullary expressions with tag types other than tag::terminal. Sorry. :-P

*Digging into how proto::literal works*