Jekyll plugin to embed YouTube videos

YouTube Embed for Jekyll.md

This is a plugin meant for Jekyll.

Example use:

Easily embed a YouTube video. Just drop this file in your _plugins directory.

{% youtube oHg5SJYRHA0 %}

You can also specify a height and width. If you do not, it defaults to 560 x 420.

{% youtube oHg5SJYRHA0 500 400 %}

youtube.rb

class YouTube < Liquid::Tag
  Syntax = /^\s*([^\s]+)(\s+(\d+)\s+(\d+)\s*)?/
 
  def initialize(tagName, markup, tokens)
    super
 
    if markup =~ Syntax then
      @id = $1
 
      if $2.nil? then
          @width = 640
          @height = 480
      else
          @width = $2.to_i
          @height = $3.to_i
      end
    else
      raise "No YouTube ID provided in the \"youtube\" tag"
    end
  end
 
  def render(context)
    "<iframe width='#{@width}' height='#{@height}' src='http://www.youtube.com/embed/#{@id}?rel=0' frameborder='0' allowfullscreen='allowfullscreen'><a href='http://www.youtube.com/watch?v=#{@id}\'><img src='http://img.youtube.com/vi/#{@id}/0.jpg' width='#{@width}' height='#{@height}' /></a></iframe>"
  end
 
  Liquid::Template.register_tag "youtube", self
end