Re: [Boost-users] Xpressive with non char data

From: Eric Niebler (eric_at_[hidden])
Date: 2007-05-22 12:21:58

gast128 wrote:
> Dear all,
> 
> The new Boost version ships with an extra regular expression library.
> 
> Now I need a dynamic regualr expression on a std::vector<std::string>. The 
> character type would be a string (since in that case multiple characters are 
> allowed on the same position).
> 
> Is this possible with xpressive? Boost.Regex didn't seem to support it 
> according to a previous post.

Xpressive can be used with non-char data so long as the data is 
sufficiently char-like. And string is not sufficiently char-like. You 
can see the requirements on the character type here:

http://boost-sandbox.sourceforge.net/libs/xpressive/doc/html/boost_xpressive/user_s_guide/concepts.html

It wouldn't be too hard to loosen xpressive's Char concept to handle 
this case, but this is the first time someone has asked for it.

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