Liquid::Tag bare-bones implementation

tag-bare.rb

module Jekyll
  class MyCustomTag < Liquid::Tag
    def initialize(tag_name, params, tokens)
      super
      @params = params.strip
    end
 
    def render(context)
      "Received params: '#{@params}'!"
    end
  end
end
 
Liquid::Template.register_tag('my_custom_tag', Jekyll::MyCustomTag)