Goran Mitrovic wrote:
OK, tnx, but please pay attention to the Greta. Author claims to be few times faster (due to the virtual fcalls eliminations concept) than Boost's regex.
Yep, I wrote GRETA. GRETA /was/ faster than Boost.Regex pre-1.31. Since then, Boost.Regex has been rewritten to be much more efficient. Boost.Regex and GRETA are now pretty close in performance. I wrote GRETA while at Microsoft, and the code is owned by them. I started writing xpressive when I left Microsoft. It is a ground-up reimplementation, not a rename of GRETA. GRETA is no longer being actively maintained. xpressive takes the virt-call-elimination trick to the extreme, using expression templates to eliminate *all* virtuals. -- Eric Niebler Boost Consulting www.boost-consulting.com