Re: [boost] Re: Announcing: xpressive

From: Darren Cook (darren_at_[hidden])
Date: 2003-11-17 22:47:06

> - Ever try to write a regular expression to match balanced, nested tags? 

Yes, it is horrible.

> Since ET's are native code, they can refer to other ET's (and 
> themselves!) in a natural way, so you can build recursive parsers out of 
> them.  

Can you show an example of how this would work? How is this different from 
using Spirit?

> In short, expression templates make regular expressions first-class 
> citizens of C++.

Most regexes I've written have been constant at compile-time, and if you get 
compile-time checking then this will be good.

Darren