Here is an extension you can use in your Swift (v4) projects that makes it easy to parse parameters from a url. Given a url like, "http://example.com/?x=1&y=2", you can extract the x and y parameters into a key, value data structure. Here is the s...

Regular Expression that Matches Email Addresses: /\b[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}\b/

I recently watched a RailsCasts episode (http://railscasts.com/episodes/168-feed-parsing) on parsing and persisting RSS feeds using Feedzirra. It took a little setting up on Ubuntu because it relies on some libraries that aren't included with Ubuntu > 8. ...

There is a helper method for handling the obfuscation of email addresses in Rails. mail_to "me@domain.com", "My email", :encode => "hex" # => My email If you want to then extract an email address(or all email addresses) from a block of text here is the...