As of macOS 10.12, OSSpinLock has been deprecated. The XCode error messages urge me to use os_unfair_lock_unlock() instead. As a legacy of some open source stuff I'm relying on, I'm using RegexKi...

since regular exressions are not supported in Cocoa I find RegexKitLite very usefull. But all examples extract matching strings. I just want to test if a string matches a regular expression and g...