Re: [Boost-users] pathological regex?

2009/8/27 Michał Nowotka :

Hello, I use boost regex v 1.37 on Ubuntu 9.04, g++-4.3. Because of performance issues i replaced defaut matching algorithm to BOOST_REGEX_RECURSIVE but then my program dont't work properly.

So, is this expression pathological: (https?://)?([^/@]*[\\.@])?google.com[/\\?&#]*

?

If you want the best performance and you are always matching something similar then you should use Spirit2.1 from the boost trunk, it is a *great* deal faster, and I *think* it works on Boost 1.37 and higher, but I know it works on 1.38 and higher.