Some say a set of regular expressions comprises a domain-specific language, or DSL; essentially, a mini-programming language. A full-blown programming language like Java or Python can do many things, ...

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 ...

A quick run down on how you can use regular expressions in your own programs to give you more power over searching and substituting text. Perl has long been an extremely popular choice for text ...