Index: emacs/lisp/international/mule.el
diff -c emacs/lisp/international/mule.el:1.223
emacs/lisp/international/mule.el:1.224
*** emacs/lisp/international/mule.el:1.223 Mon Jul 4 17:22:27 2005
--- emacs/lisp/international/mule.el Thu Jul 7 06:21:30 2005
***************
*** 839,844 ****
--- 839,850 ----
If the value is non-nil, the coding system preserves composition
information.
+ o ascii-incompatible
+
+ If the value is non-nil, the coding system is not compatible
+ with ASCII, which means it encodes or decodes ASCII character
+ string to the different byte sequence.
+
These properties are set in PLIST, a property list. This function
also sets properties `coding-category' and `alias-coding-systems'
automatically.
***************
*** 1191,1196 ****
--- 1197,1205 ----
see) to CODING-SYSTEM."
(interactive "zCoding system for file names (default, nil): ")
(check-coding-system coding-system)
+ (if (and coding-system
+ (coding-system-get coding-system 'ascii-incompatible))
+ (error "%s is not ASCII-compatible" coding-system))
(setq file-name-coding-system coding-system))
(defvar default-terminal-coding-system nil
***************
*** 1247,1252 ****
--- 1256,1264 ----
(setq coding-system default-keyboard-coding-system))
(if coding-system
(setq default-keyboard-coding-system coding-system))
+ (if (and coding-system
+ (coding-system-get coding-system 'ascii-incompatible))
+ (error "%s is not ASCII-compatible" coding-system))
(set-keyboard-coding-system-internal coding-system)
(setq keyboard-coding-system coding-system)
(encoded-kbd-mode (if coding-system 1 0)))
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