In this lesson, you’ll learn how to use RegEx (regular expressions) to work with sets of characters. Unlike the ., which matches any single character , sets enable you to match specific characters and ...

I'm one program away from using Linux full-time on my laptop - I need a replacement for Home Site (a web page editor). I can fumble around in both vim and emacs well enough to do everything I want ...

When I’m writing in Editorial, I often need to make sure I’m dealing with a valid URL in the system clipboard, the document editor, or in a variable. To do so, I’ve long employed John Gruber’s liberal ...