# Title: jsFiddle tag for Jekyll
 # Author: Brian Arnold (@brianarn)
 # Description:
 #   Given a jsFiddle shortcode, outputs the jsFiddle iframe code.
 #   Using 'default' will preserve defaults as specified by jsFiddle.
 #
 # Syntax: {% jsfiddle shorttag [tabs] [skin] [height] [width] %}
 #
 # Examples:
 #
 # Input: {% jsfiddle ccWP7 %}
 # Output: <iframe style="width: 100%; height: 300px" src="http://jsfiddle.net/ccWP7/embedded/js,resources,html,css,result/light/"></iframe>
 #
 # Input: {% jsfiddle ccWP7 js,html,result %}
 # Output: <iframe style="width: 100%; height: 300px" src="http://jsfiddle.net/ccWP7/embedded/js,html,result/light/"></iframe>
 #
 
 module Jekyll
   class JsFiddle < Liquid::Tag
     def initialize(tag_name, markup, tokens)
       if /(?<fiddle>\w+)(?:\s+(?<sequence>[\w,]+))?(?:\s+(?<skin>\w+))?(?:\s+(?<height>\w+))?(?:\s+(?<width>\w+))?/ =~ markup
         @fiddle   = fiddle
         @sequence = (sequence unless sequence == 'default') || 'js,resources,html,css,result'
         @skin     = (skin unless skin == 'default') || 'light'
         @width    = width || '100%'
         @height   = height || '300px'
       end
     end
 
     def render(context)
       if @fiddle
         "<iframe style=\"width: #{@width}; height: #{@height}\" src=\"http://jsfiddle.net/#{@fiddle}/embedded/#{@sequence}/#{@skin}/\"></iframe>"
       else
         "Error processing input, expected syntax: {% jsfiddle shorttag [tabs] [skin] [height] [width] %}"
       end
     end
   end
 end
 
 Liquid::Template.register_tag('jsfiddle', Jekyll::JsFiddle)