YouTube video ID regex

gistfile1.rb

# Parses YouTube URLs directly or from iframe code.  Handles:
# * Address bar on YouTube url (ex: http://www.youtube.com/watch?v=ZFqlHhCNBOI)
# * Direct http://youtu.be/ url (ex: http://youtu.be/ZFqlHhCNBOI)
# * Full iframe embed code (ex: <iframe src="http://www.youtube.com/embed/ZFqlHhCNBOI">)
# * Old <object> tag embed code (ex: <object><param name="movie" value="http://www.youtube.com/v/ZFqlHhCNBOI">...)

/(youtu\.be\/|youtube\.com\/(watch\?(.*&)?v=|(embed|v)\/))([^\?&"'>]+)/
$5 #=> the video ID

# test it on Rubular: http://rubular.com/r/eaJeSMkJvo

private const MAGIC_REGEX = '#^(?:https?://|//)?(?:www\.|m\.|.+\.)?(?:youtu\.be/|youtube\.com/(?:embed/|v/|shorts/|feeds/api/videos/|watch\?v=|watch\?.+&v=))([\w-]{11})(?![\w-])#';

added support for shorts :)