Aaronontheweb/node-slugs — pull request #1 by tstrimple (2012-02-01 18:57:29+00:00)
Title: I replaced the character by character replacement with a simple js regex replace.

incString = incString.replace(/[\ .=-]/gi, '-'); // replace spaces, . = and - with -
incString = incString.replace(/[^\w\ .=-]/gi, ''); // replaces all other non-alphanumeric with empty string

Still passes all tests.