class Lookbook::CustomTag

def initialize(tag_name, text = nil, *args)
  tag_definition = Engine.tags.get_tag(tag_name)
  unless tag_definition
    raise ParserError.new "Unknown custom tag type '#{tag_name}'"
  end
  super(tag_name, text.to_s, *args)
  @custom_attributes = Store.new
  @arg_names = tag_definition.options.fetch(:named_args, [])
  @after_parse = tag_definition.options.fetch(:after_parse, nil)
  validate_arg_names
  @tag_args = parse_tag
  @after_parse.call(self) if @after_parse.respond_to?(:call)
end