Added Emoji feature. First operational code 😄

_config.yml

@@ -2,10 +2,34 @@
 # For more see: http://jekyllrb.com/docs/permalinks/
 permalink: /:categories/:year/:month/:day/:title 
 
-exclude: [".rvmrc", ".rbenv-version", "README.md", "Rakefile", "changelog.md"]
+exclude: [".rvmrc", ".rbenv-version", "README.md", "Rakefile", "changelog.md", "Gemfile"]
 auto: true
 pygments: true
 
+# Path to the directory containing Emoji icons.
+#
+# Note: you also have to include tje following tag in the each post's YAML Front Matter
+#       to trigger the Emoji plugin 
+#       -------------
+#       emojify: true
+#       -------------
+#
+# Directory definition examples:
+#    
+#    Pointing to a web server
+#        emoji_dir: https://public.blog.url/images/emoji
+#
+#    Using directory, will work only on the local machine
+#        emoji_dir: ./images/emoji
+#
+#     If you will be serving emoji icons from your website,
+#     defined first as directory and run 'jekyll build'.
+#     This will copy the icons from the gemoji gem to the 
+#     directory you specified. Test locally then change to URL.
+#     See class EmojiGenerator in the plugin code for more information
+emoji_dir: ./images/emoji
+
+
 # Themes are encouraged to use these universal variables 
 # so be sure to set them if your theme uses them.
 #

_includes/themes/twitter/default.html

@@ -49,7 +49,11 @@
     <div class="container-narrow">
 
       <div class="content">
-        {{ content }}
+        {% if page.emojify == true %}
+           {{ content | emojify }}
+        {% else %}
+           {{ content }}
+        {% endif %}
       </div>
       <hr>
       <footer>

_includes/themes/twitter/page.html

@@ -4,6 +4,10 @@ <h1>{{ page.title }} {% if page.tagline %} <small>{{ page.tagline }}</small>{% e
 
 <div class="row-fluid">
   <div class="span12">
-    {{ content }}
+    {% if page.emojify == true %}
+      {{ content | emojify }}
+    {% else %}
+      {{ content }}
+    {% endif %}
   </div>
 </div>

_includes/themes/twitter/post.html

@@ -8,7 +8,11 @@ <h1>{{ page.title }} {% if page.tagline %}<small>{{page.tagline}}</small>{% endi
       <span>{{ page.date | date_to_long_string }}</span>
     </div>
     <div class="content">
-      {{ content }}
+      {% if page.emojify == true %}
+         {{ content | emojify }}
+      {% else %}
+         {{ content }}
+      {% endif %}
     </div>
 
   {% unless page.categories == empty %}

_plugins/emoji.rb

@@ -0,0 +1,69 @@
+# Jekyll Emoji
+#
+# Chris Kempson (http://chriskempson.com)
+# https://github.com/chriskempson/jekyll-emoji
+#
+# A jekyll plug-in that provides a Liquid filter for emojifying text with
+# https://github.com/github/gemoji. See http://www.emoji-cheat-sheet.com for
+# a full listing of emoji codes.
+#
+# Installation:
+#   - Run `gem install gemoji` or add `gem 'gemoji'` to your gemfile and run `bundle install`
+#   - Copy this file to your `_plugins` directory
+#   - Add a line like `emoji_dir: images/emoji` to your `_config.yml`
+#   - If you want to use external source for emoji, set `emoji_dir: http://...` to your `_config.yml`.
+# 
+# Usage: 
+#   - Apply the filter wherever needed e.g. {{ content | emojify }}
+#   - Add some emoji to your article! e.g. "Hello :wink:"
+
+require 'gemoji'
+
+module Jekyll
+
+  module EmojiFilter
+
+    def emojify(content)
+      return false if !content
+
+      config = @context.registers[:site].config
+      if config['emoji_dir']
+        if config['emoji_dir'].start_with?('http')
+          emoji_dir = config['emoji_dir']
+        else
+          emoji_dir = '/' + File.join(config['source'], config['emoji_dir'])
+        end
+      end
+
+      content.to_str.gsub(/([^:]):([\w\d+-]+):/) do |match|
+        if Emoji.names.include?($2) and emoji_dir
+          $1 + '<img alt="' + $2 + '" src="' + emoji_dir + "/#{$2}.png" + '" class="emoji" />'
+        else
+          match
+        end
+      end
+    end
+
+  end
+
+  class EmojiGenerator < Generator
+    def generate(site)
+      config = site.config
+      return false if not config['emoji_dir']
+      return false if config['emoji_dir'].start_with?('http')
+      emoji_dir = File.join(config['source'], config['emoji_dir'])
+      return false if File.exist?(emoji_dir + '/smiley.png')
+
+      # Make Emoji directory
+      FileUtils.mkdir_p(emoji_dir)
+
+      # Copy Gemoji files
+      Dir["#{Emoji.images_path}/emoji/*.png"].each do |src|
+        FileUtils.cp src, emoji_dir
+      end
+    end
+  end
+
+end
+
+Liquid::Template.register_filter(Jekyll::EmojiFilter)

_posts/core-samples/2013-08-25-jekyll-emoji.md

@@ -0,0 +1,27 @@
+---
+layout: post
+category : features
+tagline: "Supporting tagline"
+emojify: true
+tags : [intro, beginner, jekyll, tutorial, emoji, features]
+---
+{% include JB/setup %}
+
+# Emoji feature integration test page.
+
+Testing replacement of **::smile:** with :smile:
+Did it worked?
+
+Note that the string to use to get this smile is one containing only one **':'** character. The plugin as been tuned as suggested by [DrSlump here](http://juandebravo.com/2012/11/17/emoji-support-in-jekyll/#) to avoid replacing a string by its emoji if it starts with **'::'**.
+
+
+**Author: Patrice Lachance, http://www.itisopen.net**
+
+
+**This plugin would not have been make without the following articles!**  
+
+- [Chris Kempson](https://github.com/chriskempson/jekyll-emoji)
+  Source of the plugin, I made only few modifications.
+- [Juan de Bravo](http://juandebravo.com/2012/11/17/emoji-support-in-jekyll/)
+  Detailed step by step guide to understand how it works.
+