I released a new version of Rak today with some bug fixes and enhancements.

New features:

• Colouring works on Windows if win32console gem is installed, fails gracefully if not.
• Added .rake, .erb and .haml to Ruby filetypes.
• Added match only at end-of/start-of line options

Thanks to Edvard Majakari, Kevin Ballard, Esad Hajdarevic, Bela Babik, Genki Takiuchi and Rob Knight for suggestions and fixes.