Adds jsFiddle plugin

plugins/jsfiddle.rb

@@ -0,0 +1,40 @@
+# 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)