wip - liquid tag plugin to build links...

link_helper.rb

module Nvidia
  class LinkHelper < Liquid::Tag
    Link = Struct.new :classes, :href, :id, :local, :name

    def initialize(tagName, markup, tokens)
      super
    end

    def hash_to_link link
      Link.new link.fetch('classes'), link.fetch('href'), link.fetch('id'), link.fetch('local'), link.fetch('name')
    end

    def render(context)
      link = validate_hash_as_link context[@markup]
      link_parts = []
      link_parts << '<a '
      link_parts << "class=\"#{link.classes}\" " unless link.classes.nil?
      link_parts << "href=\"#{link.href}\" "
      link_parts << "id=\"#{link.id}\" " unless link.id.nil?
      link_parts << 'target="_blank" ' unless link.local
      link_parts << "title=\"#{link.name}\" "
      link_parts << '>'
      link_parts << link.name
      link_parts << '</a>'
      link_parts.join
    end

    def validate_hash_as_link link
      begin
        link.fetch('classes')
        link.fetch('href')
        link.fetch('id')
        link.fetch('local')
        link.fetch('name')
      rescue
        raise 'Not a valid link object'
      end
      return hash_to_link link
    end
  end
end

Liquid::Template.register_tag 'link_helper', Nvidia::LinkHelper