anchor.diff:                  "callbacks")
        :mostly-written-in ("Common Lisp"))
   
  -    (:name "ECL"
  +    (:name "Embeddable Common-Lisp"
  +     :nickname "ECL"
        :license "LGPL"
        :homepage "http://ecls.sourceforge.net/"
        :documentation "http://ecls.sourceforge.net/new-manual/index.html"
  
positive.code:                 "Source level debugger"))
  
      (:name "Lispworks Common Lisp"
       :license "Proprietary"
       :homepage "http://www.lispworks.com/products/index.html"
       :documentation "http://www.lispworks.com/documentation/index.html"
  
negative.code:      :mostly-written-in ("C++"))
  
      (:name "Allegro Common Lisp"
       :nickname "AllegroCL"
       :license "Proprietary"
       :homepage "http://www.franz.com/products/allegrocl/"
       :documentation "http://www.franz.com/support/documentation/"
  