2012/6/6 Raphael B. <lists / ruby-forum.com>:
> That could be achieved (though not on a per file basis) with the -K
> flag, but I've read the -K flag could become deprecated, and that magic
> comments are the future. I don't understand how comments can get such an
> importance in source code, and I want to learn more because I'm
> suspecting I am missing something.

You can't always provide command-line options (or it might be troublesome).

-- Matma Rex