[Emacs-diffs] emacs/lisp/international mule.el

[Kenichi Handa]

CVSROOT:        /cvsroot/emacs
Module name:    emacs
Changes by:     Kenichi Handa <handa>   09/03/03 01:56:14

Modified files:
        lisp/international: mule.el 

Log message:
        (set-buffer-file-coding-system): Set cdr
        part of buffer-file-coding-system-explicit.
        (after-insert-file-set-coding): Set
        buffer-file-coding-system-explicit to a cons.

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/emacs/lisp/international/mule.el?cvsroot=emacs&r1=1.281&r2=1.282

Patches:
Index: mule.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/international/mule.el,v
retrieving revision 1.281
retrieving revision 1.282
diff -u -b -r1.281 -r1.282
--- mule.el     7 Jan 2009 14:24:36 -0000       1.281
+++ mule.el     3 Mar 2009 01:56:14 -0000       1.282
@@ -1146,6 +1146,25 @@
       (put (intern name) 'coding-system-define-form form)
       (setq coding-system-alist (cons (list name) coding-system-alist)))))
 
+;; This variable is set in these three cases:
+;;   (1) A file is read by a coding system specified explicitly.
+;;       after-insert-file-set-coding sets the car of this value to
+;;       coding-system-for-read, and sets the cdr to nil.
+;;   (2) A buffer is saved.
+;;       After writing, basic-save-buffer-1 sets the car of this value
+;;       to last-coding-system-used.
+;;   (3) set-buffer-file-coding-system is called.
+;;       The cdr of this value is set to the specified coding system.
+;; This variable is used for decoding in revert-buffer and encoding in
+;; select-safe-coding-system.
+(defvar buffer-file-coding-system-explicit nil
+  "The file coding system explicitly specified for the current buffer.
+The value is a cons of coding systems for reading (decoding) and
+writing (encoding).
+Internal use only.")
+(make-variable-buffer-local 'buffer-file-coding-system-explicit)
+(put 'buffer-file-coding-system-explicit 'permanent-local t)
+
 (defun set-buffer-file-coding-system (coding-system &optional force nomodify)
   "Set the file coding-system of the current buffer to CODING-SYSTEM.
 This means that when you save the buffer, it will be converted
@@ -1169,6 +1188,9 @@
       (setq coding-system
            (merge-coding-systems coding-system buffer-file-coding-system)))
   (setq buffer-file-coding-system coding-system)
+  (if buffer-file-coding-system-explicit
+      (setcdr buffer-file-coding-system-explicit coding-system)
+    (setq buffer-file-coding-system-explicit (cons nil coding-system)))
   ;; This is in case of an explicit call.  Normally, `normal-mode' and
   ;; `set-buffer-major-mode-hook' take care of setting the table.
   (if (fboundp 'ucs-set-table-for-input) ; don't lose when building
@@ -1831,20 +1853,6 @@
 
 (setq set-auto-coding-function 'set-auto-coding)
 
-;; This variable is set in these two cases:
-;;   (1) A file is read by a coding system specified explicitly.
-;;       after-insert-file-set-coding sets this value to
-;;       coding-system-for-read.
-;;   (2) A buffer is saved.
-;;       After writing, basic-save-buffer-1 sets this value to
-;;       last-coding-system-used.
-;; This variable is used for decoding in revert-buffer.
-(defvar buffer-file-coding-system-explicit nil
-  "The file coding system explicitly specified for the current buffer.
-Internal use only.")
-(make-variable-buffer-local 'buffer-file-coding-system-explicit)
-(put 'buffer-file-coding-system-explicit 'permanent-local t)
-
 (defun after-insert-file-set-coding (inserted &optional visit)
   "Set `buffer-file-coding-system' of current buffer after text is inserted.
 INSERTED is the number of characters that were inserted, as figured
@@ -1855,7 +1863,8 @@
   (if (and visit
           coding-system-for-read
           (not (eq coding-system-for-read 'auto-save-coding)))
-      (setq buffer-file-coding-system-explicit coding-system-for-read))
+      (setq buffer-file-coding-system-explicit
+           (cons coding-system-for-read nil)))
   (if last-coding-system-used
       (let ((coding-system
             (find-new-buffer-file-coding-system last-coding-system-used)))