Jekyll tag plugin for quickly making links to Twitter user timelines and hastag searches

twitter_link.rb

# TwitterLink Jekyll Plugin
# Copyright (C) 2013 Sean Redmond - MIT License
# https://gist.github.com/seanredmond/6571611
# 
# Quickly make links to people and hashtags on Twitter
#
# Usage:
#   Link to a user's timeline:  {% twlink @user %}
#   Link to a hashtag search:  {% twlink #hashtag %}
  
module Jekyll
  class TwitterLink < Liquid::Tag
    safe = true
    priority = :normal
 
    def initialize(tag_name, text, tokens)
      super
      @twitter_token = text.strip
    end

    # Return URL for a personal timeline
    def person_link(person)
      "https://twitter.com/#{person}"
    end

    # Return URL for a hastag search
    def hash_link(hashtag)
      "https://twitter.com/search?q=%23#{hashtag}"
    end
 
    # Return the proper kind of link
    def make_link(match)
      if match == nil
        raise "TwitterLink plugin can't identify #{@twitter_token} as either a user handle (beginning with '@') or hashtag (beginning with '#')"
      end

      if match[1] == '@'
        return person_link(match[2])
      end

      return hash_link(match[2])
    end

    def render(context)
      href = make_link(/^([@#])(.\S+)$/.match(@twitter_token))
      %Q|<a href="#{href}">#{@twitter_token}</a>|
    end
  end
end
 
Liquid::Template.register_tag('twlink', Jekyll::TwitterLink)