instruction for what to do with a code you copied from a blog comment

fix-quotes-instruction.el

;; copy the following and
;; paste it in your emacs init file (the dotemacs file)

(defun fix-quotes (beg end)
  "replaces pretty quotes to ugly quotes."
  (interactive "r")
  (save-excursion
    (format-replace-strings '(("\x2019" . "'")
                              ("\x201c" . "\"")
                              ("\x201d" . "\"")
                              ("\x2018" . "'")
                              ) nil beg end))
  (indent-region (region-beginning) (region-end)))

;; then restart your emacs.
;; now you can copy an emacs lisp code example from a blog comment and 
;; paste it in your scratch buffer and 
;; then select the pasted region (this step usually not necessary)
;; and then do M-x fix-quotes and quotes will be fixed
;; and the pasted code will be indented.