Re: [boost] Re: [ANN] Spirit C++ parser framework.

From: Douglas Gregor (gregod_at_[hidden])
Date: 2001-05-25 09:39:33

On Friday 25 May 2001 09:33 am, you wrote:
> From: "Larry Evans" :
> > joel de guzman wrote:
> > ...skipping
> >
> > > I'd like to be consistent. If we are to reuse | to mean alternative,
> > > what's wrong with reusing prefix + and *? Still I'd go for the
> > > iterator since it addresses something that the * and + couldn't do:
> > >
> > > repeat<8, 8>(a); // repeat 'a' exactly 8 times
> >
> > One more possibility:
> >     a(8,8)
> >     a(8)
> > which would require, I think, virtual methods:
> >    Parser::operator()(int,int);
> >    Parser::operator()(int);
>
> Greg Colvin suggested this too. I think this is cool!
>
>     integer = digit[0, more];
>     identifier = (uscore | alpha) >> (uscore | alpha | digit)[0, more];
>
> Yeah!
>
> Joel de Guzman

The bracket notation unfortunately can't be used for everything, because
digit[0, 2] == digit[2]

        Doug