[boost] Re: Regex Question: Explicit Constructor

From: Eric Niebler (eric_at_[hidden])
Date: 2004-01-24 22:57:53

Daryle Walker wrote:
> 
> Also, I wouldn't consider a list of characters to be equivalent to a pattern
> matcher, even if the latter is implemented in terms of the former.  (Can a
> regex be defined by other ways than a string?  Using "regex atom" objects
> composed together could cut out the mandatory parsing engine the string
> method requires.)
> 

Indeed, such a regex engine already exists.  It's called xpressive and 
it lives in the boost sandbox.  It's under active development.

FWIW, I also agree that the Boost.Regex constructor should remain 
explicit.  IMO, a regex is not a string, and a string is not a regex.  A 
string is merely one (admittedly handy) way of initializing a regex.

-- 
Eric Niebler
Boost Consulting
www.boost-consulting.com