erikw/tmux-powerline — pull request #32 by fantattitude (2012-07-28 07:34:19+00:00)
Title: Current_condition is now properly checked on OS X (PCRE Grep not supported on OS X)

On default installs of OS X, grep doesn't support grep -P so I combined grep + sed to get the right result for condition data.
This has been tested on Mountain Lion.