anchor.diff:             :feed
              :feed-author
              :feed-url
  +           :feed-category
              :*feeds-ns-map*
              ))
   
  
positive.code: (defparameter *planet.reader.package*
    (defpackage :planet.reader
      (:use)
      (:import-from :planet :define-feed :define-planet)))
  
  (defun load-feeds-from-file (path)
    (let ((*feeds* nil)
  
negative.code: (defclass feed ()
    ((author :initarg :author :initform nil :reader feed-author)
     (url :initarg :url :reader feed-url)
     (category :initarg :category :initform nil :accessor feed-category)))
  
  (defgeneric find-feed-entities (feed rawfeed))
  (defgeneric parse-feed-entry (feed rawentry))
  