Re: [boost] Spirit2 lexer feature request

From: Hartmut Kaiser (hartmut.kaiser_at_[hidden])
Date: 2008-04-17 16:06:13

Felipe,

> I'm looking at the lexer library, and I must say I'm loving it.

Thanks!

> But there's a feature request I would like to make.
> Is it possible to allow paramiterization of the ID type.
> It is now fixed in std::size_t, and it is possibly a very good default.
> 
> But how would one do to parse UTF-32 in a 32 bit machine?
> 
> Also, allowing any other type (EqualComparable) would let
> people use string types as IDs, making it easier to log a execution,
> since you wouldn't have to map enum values to strings.

Ok, I didn't think of this and I agree it would be a good extension (even if
it may compromise performance, at least when using string). I'll try to have
a look to see what's involved. Probably I won't be able to do anything wrt
this before BoostCon, though.

Regards Hartmut