I think this one is more appropriate: http://nikic.github.com/2012/06/15/The-true-power-of-regular-expressions#matching_contextfree_languages http://nikic.githu

I think this one is more appropriate: http://nikic.github.com/2012/06/15/The-true-power-of-regular-expressions#matching_contextfree_languages http://nikic.github.com/2012/06/15/The-true-power-of-regular...