Re: enhanced select-safe-coding-system

[Richard Stallman]

Your code was based on an older version did not have some other
changes that are in the sources now.  I merged it, and the changes
you made seem to be these.

Does anyone see a problem with these changes?
Handa, do they look correct to you?

*** mule-cmds.el.~1.190.~       Sat Apr 27 23:22:23 2002
--- mule-cmds.el        Wed May  1 01:33:40 2002
***************
*** 636,641 ****
--- 636,651 ----
              (setcar l mime-charset))
          (setq l (cdr l))))
  
+       ;; Don't offer variations with locking shift, which you
+       ;; basically never want.
+       (let (l)
+       (dolist (elt codings (setq codings (nreverse l)))
+         (unless (or (eq 'coding-category-iso-7-else
+                         (coding-system-category elt))
+                     (eq 'coding-category-iso-8-else
+                         (coding-system-category elt)))
+           (push elt l))))
+ 
        ;; Make sure the offending buffer is displayed.
        (or (stringp from)
          (pop-to-buffer bufname))
***************
*** 705,711 ****
  
      (if (eq coding-system t)
        (setq coding-system buffer-file-coding-system))
!     coding-system))
  
  (setq select-safe-coding-system-function 'select-safe-coding-system)
  
--- 715,737 ----
  
      (if (eq coding-system t)
        (setq coding-system buffer-file-coding-system))
!     ;; Check we're not inconsistent with what coding cookies &c would
!     ;; give when file is re-read.
!     (unless (stringp from)
!       (let ((auto-cs (save-restriction
!                      (widen)
!                      (save-excursion
!                        (goto-char (point-min))
!                        (set-auto-coding (or buffer-file-name "")
!                                         (buffer-size))))))
!       (if (and auto-cs
!                (not (coding-system-equal (coding-system-base coding-system)
!                                          (coding-system-base auto-cs))))
!           (unless (yes-or-no-p
!                    (format "Selected encoding %s disagrees with \
! %s specified by file contents.  Really save (else edit coding cookies \
! and try again)? " coding-system auto-cs))
!             (error "Save aborted")))))    coding-system))
  
  (setq select-safe-coding-system-function 'select-safe-coding-system)