mm-mime-mule-charset-alist)
nil t))))
(subst-char-in-string
- . (lambda (from to string &optional inplace) ;; stolen (and renamed) from nnheader.el
+ . (lambda (from to string &optional inplace)
+ ;; stolen (and renamed) from nnheader.el
"Replace characters in STRING from FROM to TO.
Unless optional argument INPLACE is non-nil, return a new string."
(let ((string (if inplace string (copy-sequence string)))
(replace-regexp-in-string regexp rep string nil literal)))
(string-as-unibyte . identity)
(string-make-unibyte . identity)
+ ;; string-as-multibyte often doesn't really do what you think it does.
+ ;; Example:
+ ;; (aref (string-as-multibyte "\201") 0) -> 129 (aka ?\201)
+ ;; (aref (string-as-multibyte "\300") 0) -> 192 (aka ?\300)
+ ;; (aref (string-as-multibyte "\300\201") 0) -> 192 (aka ?\300)
+ ;; (aref (string-as-multibyte "\300\201") 1) -> 129 (aka ?\201)
+ ;; but
+ ;; (aref (string-as-multibyte "\201\300") 0) -> 2240
+ ;; (aref (string-as-multibyte "\201\300") 1) -> <error>
+ ;; Better use string-to-multibyte or encode-coding-string.
+ ;; If you really need string-as-multibyte somewhere it's usually
+ ;; because you're using the internal emacs-mule representation (maybe
+ ;; because you're using string-as-unibyte somewhere), which is
+ ;; generally a problem in itself.
+ ;; Here is an approximate equivalence table to help think about it:
+ ;; (string-as-multibyte s) ~= (decode-coding-string s 'emacs-mule)
+ ;; (string-to-multibyte s) ~= (decode-coding-string s 'binary)
+ ;; (string-make-multibyte s) ~= (decode-coding-string s locale-coding-system)
(string-as-multibyte . identity)
(string-to-multibyte
. (lambda (string)
If CS is available, return CS itself in Emacs, and return a coding
system object in XEmacs."
(if (fboundp 'find-coding-system)
- (find-coding-system cs)
+ (and cs (find-coding-system cs))
(if (fboundp 'coding-system-p)
(when (coding-system-p cs)
cs)
(defmacro mm-xemacs-find-mime-charset (begin end)
(when (featurep 'xemacs)
- `(mm-xemacs-find-mime-charset-1 ,begin ,end)))
+ `(and (featurep 'mule) (mm-xemacs-find-mime-charset-1 ,begin ,end))))
(defun mm-find-mime-charset-region (b e &optional hack-charsets)
"Return the MIME charsets needed to encode the region between B and E.
(file-directory-p
(setq dir (concat (file-name-directory
(directory-file-name path))
- "etc/" (or package "gnus/")))))
+ "etc/images/" (or package "gnus/")))))
(push dir result))
(push path result))))
(defun mm-detect-coding-region (start end)
"Like `detect-coding-region' except returning the best one."
(let ((coding-systems
- (detect-coding-region (point) (point-max))))
+ (detect-coding-region start end)))
(or (car-safe coding-systems)
coding-systems)))
(defun mm-detect-coding-region (start end)
"Return the MIME charset corresponding to CODING-SYSTEM.
To make this function work with XEmacs, the APEL package is required."
(when coding-system
- (or (coding-system-get coding-system :mime-charset)
- (coding-system-get coding-system 'mime-charset)
+ (or (and (fboundp 'coding-system-get)
+ (or (coding-system-get coding-system :mime-charset)
+ (coding-system-get coding-system 'mime-charset)))
(and (featurep 'xemacs)
(or (and (fboundp 'coding-system-to-mime-charset)
(not (eq (symbol-function 'coding-system-to-mime-charset)
(defun mm-decompress-buffer (filename &optional inplace force)
"Decompress buffer's contents, depending on jka-compr.
-Only when FORCE is non-nil or `auto-compression-mode' is enabled and
-FILENAME agrees with `jka-compr-compression-info-list', decompression
-is done. If INPLACE is nil, return decompressed data or nil without
-modifying the buffer. Otherwise, replace the buffer's contents with
-the decompressed data. The buffer's multibyteness must be turned off."
+Only when FORCE is t or `auto-compression-mode' is enabled and FILENAME
+agrees with `jka-compr-compression-info-list', decompression is done.
+Signal an error if FORCE is neither nil nor t and compressed data are
+not decompressed because `auto-compression-mode' is disabled.
+If INPLACE is nil, return decompressed data or nil without modifying
+the buffer. Otherwise, replace the buffer's contents with the
+decompressed data. The buffer's multibyteness must be turned off."
(when (and filename
(if force
(prog1 t (require 'jka-compr))
(jka-compr-installed-p))))
(let ((info (jka-compr-get-compression-info filename)))
(when info
+ (unless (or (memq force (list nil t))
+ (jka-compr-installed-p))
+ (error ""))
(let ((prog (jka-compr-info-uncompress-program info))
(args (jka-compr-info-uncompress-args info))
(msg (format "%s %s..."
(provide 'mm-util)
-;;; arch-tag: 94dc5388-825d-4fd1-bfa5-2100aa351238
+;; arch-tag: 94dc5388-825d-4fd1-bfa5-2100aa351238
;;; mm-util.el ends here
projects / gnus / blobdiff