;;; mm-util.el --- Utility functions for MIME things
-;; Copyright (C) 1998-2000 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; MORIOKA Tomohiko <morioka@jaist.ac.jp>
(iso-8859-3 latin-iso8859-3)
(iso-8859-4 latin-iso8859-4)
(iso-8859-5 cyrillic-iso8859-5)
- (koi8-r cyrillic-iso8859-5)
+ ;; Non-mule (X)Emacs uses the last mule-charset for 8bit characters.
+ ;; The fake mule-charset, gnus-koi8-r, tells Gnus that the default
+ ;; charset is koi8-r, not iso-8859-5.
+ (koi8-r cyrillic-iso8859-5 gnus-koi8-r)
(iso-8859-6 arabic-iso8859-6)
(iso-8859-7 greek-iso8859-7)
(iso-8859-8 hebrew-iso8859-8)
"Prompt the user for a coding system."
(completing-read
prompt (mapcar (lambda (s) (list (symbol-name (car s))))
- mm-mime-mule-charset-alist)))))))
+ mm-mime-mule-charset-alist))))
+ (read-charset
+ . (lambda (prompt)
+ "Return a charset."
+ (intern
+ (completing-read
+ prompt
+ (mapcar (lambda (e) (list (symbol-name (car e))))
+ mm-mime-mule-charset-alist)
+ nil t)))))))
(eval-and-compile
(defalias 'mm-char-or-char-int-p
(t
nil)))
-(defun mm-replace-chars-in-string (string from to)
- "Replace characters in STRING from FROM to TO."
- (let ((string (substring string 0)) ;Copy string.
- (len (length string))
- (idx 0))
- ;; Replace all occurrences of FROM with TO.
- (while (< idx len)
- (when (= (aref string idx) from)
- (aset string idx to))
- (setq idx (1+ idx)))
- string))
+(if (fboundp 'subst-char-in-string)
+ (defsubst mm-replace-chars-in-string (string from to)
+ (subst-char-in-string from to string))
+ (defun mm-replace-chars-in-string (string from to)
+ "Replace characters in STRING from FROM to TO."
+ (let ((string (substring string 0)) ;Copy string.
+ (len (length string))
+ (idx 0))
+ ;; Replace all occurrences of FROM with TO.
+ (while (< idx len)
+ (when (= (aref string idx) from)
+ (aset string idx to))
+ (setq idx (1+ idx)))
+ string)))
(defsubst mm-enable-multibyte ()
"Enable multibyte in the current buffer."
(when (fboundp 'set-buffer-multibyte)
(set-buffer-multibyte nil)))
+(defsubst mm-enable-multibyte-mule4 ()
+ "Enable multibyte in the current buffer.
+Only used in Emacs Mule 4."
+ (when (and (fboundp 'set-buffer-multibyte)
+ (boundp 'enable-multibyte-characters)
+ (default-value 'enable-multibyte-characters)
+ (not (charsetp 'eight-bit-control)))
+ (set-buffer-multibyte t)))
+
+(defsubst mm-disable-multibyte-mule4 ()
+ "Disable multibyte in the current buffer.
+Only used in Emacs Mule 4."
+ (when (and (fboundp 'set-buffer-multibyte)
+ (not (charsetp 'eight-bit-control)))
+ (set-buffer-multibyte nil)))
+
(defun mm-preferred-coding-system (charset)
;; A typo in some Emacs versions.
(or (get-charset-property charset 'prefered-coding-system)
If POS is nil, it defauls to the current point.
If POS is out of range, the value is nil.
If the charset is `composition', return the actual one."
- (let ((charset (cond
- ((fboundp 'charset-after)
- (charset-after pos))
- ((fboundp 'char-charset)
- (char-charset (char-after pos)))
- ((< (mm-char-int (char-after pos)) 128)
- 'ascii)
- (mail-parse-mule-charset ;; cached mule-charset
- mail-parse-mule-charset)
- ((boundp 'current-language-environment)
- (let ((entry (assoc current-language-environment
- language-info-alist)))
- (setq mail-parse-mule-charset
- (or (car (last (assq 'charset entry)))
- 'latin-iso8859-1))))
- (t ;; figure out the charset
- (setq mail-parse-mule-charset
- (or (car (last (assq mail-parse-charset
- mm-mime-mule-charset-alist)))
- 'latin-iso8859-1))))))
- (if (eq charset 'composition)
- (let ((p (or pos (point))))
- (cadr (find-charset-region p (1+ p))))
- charset)))
+ (let ((char (char-after pos)) charset)
+ (if (< (mm-char-int char) 128)
+ (setq charset 'ascii)
+ ;; charset-after is fake in some Emacsen.
+ (setq charset (and (fboundp 'char-charset) (char-charset char)))
+ (if (eq charset 'composition)
+ (let ((p (or pos (point))))
+ (cadr (find-charset-region p (1+ p))))
+ (if (and charset (not (memq charset '(ascii eight-bit-control
+ eight-bit-graphic))))
+ charset
+ (or
+ mail-parse-mule-charset ;; cached mule-charset
+ (progn
+ (setq mail-parse-mule-charset
+ (and (boundp 'current-language-environment)
+ (car (last
+ (assq 'charset
+ (assoc current-language-environment
+ language-info-alist))))))
+ (if (or (not mail-parse-mule-charset)
+ (eq mail-parse-mule-charset 'ascii))
+ (setq mail-parse-mule-charset
+ (or (car (last (assq mail-parse-charset
+ mm-mime-mule-charset-alist)))
+ 'latin-iso8859-1)))
+ mail-parse-mule-charset)))))))
(defun mm-mime-charset (charset)
"Return the MIME charset corresponding to the MULE CHARSET."
(defsubst mm-multibyte-p ()
"Say whether multibyte is enabled."
- (or (string-match "XEmacs\\|Lucid" emacs-version)
- (and (boundp 'enable-multibyte-characters)
- enable-multibyte-characters)))
+ (if (boundp 'enable-multibyte-characters)
+ enable-multibyte-characters
+ (featurep 'mule)))
(defmacro mm-with-unibyte-buffer (&rest forms)
"Create a temporary buffer, and evaluate FORMS there like `progn'.
See also `with-temp-file' and `with-output-to-string'."
(let ((temp-buffer (make-symbol "temp-buffer"))
(multibyte (make-symbol "multibyte")))
- `(if (or (string-match "XEmacs\\|Lucid" emacs-version)
+ `(if (or (featurep 'xemacs)
(not (boundp 'enable-multibyte-characters)))
(with-temp-buffer ,@forms)
(let ((,multibyte (default-value 'enable-multibyte-characters))
(defmacro mm-with-unibyte-current-buffer (&rest forms)
"Evaluate FORMS there like `progn' in current buffer."
(let ((multibyte (make-symbol "multibyte")))
- `(if (or (string-match "XEmacs\\|Lucid" emacs-version)
- (not (fboundp 'set-buffer-multibyte)))
+ `(if (or (featurep 'xemacs)
+ (not (fboundp 'set-buffer-multibyte))
+ (charsetp 'eight-bit-control)) ;; For Emacs Mule 4 only.
(progn
,@forms)
(let ((,multibyte (default-value 'enable-multibyte-characters)))
(coding-system-for-read mm-binary-coding-system)
(coding-system-for-write mm-binary-coding-system))
(set-buffer-multibyte nil)
+ (setq-default enable-multibyte-characters nil)
,@forms)
+ (setq-default enable-multibyte-characters ,multibyte)
(set-buffer-multibyte ,multibyte))))))
(put 'mm-with-unibyte-current-buffer 'lisp-indent-function 0)
(put 'mm-with-unibyte-current-buffer 'edebug-form-spec '(body))
(defmacro mm-with-unibyte (&rest forms)
"Set default `enable-multibyte-characters' to `nil', eval the FORMS."
(let ((multibyte (make-symbol "multibyte")))
- `(if (or (string-match "XEmacs\\|Lucid" emacs-version)
+ `(if (or (featurep 'xemacs)
(not (boundp 'enable-multibyte-characters)))
(progn ,@forms)
(let ((,multibyte (default-value 'enable-multibyte-characters)))
(fboundp 'find-charset-region))
;; Remove composition since the base charsets have been included.
(delq 'composition (find-charset-region b e)))
- ((not (boundp 'current-language-environment))
+ (t
+ ;; We are in a unibyte buffer or XEmacs non-mule, so we futz around a bit.
(save-excursion
(save-restriction
(narrow-to-region b e)
(skip-chars-forward "\0-\177")
(if (eobp)
'(ascii)
- (delq nil (list 'ascii
- (or (car (last (assq mail-parse-charset
- mm-mime-mule-charset-alist)))
- 'latin-iso8859-1)))))))
- (t
- ;; We are in a unibyte buffer, so we futz around a bit.
- (save-excursion
- (save-restriction
- (narrow-to-region b e)
- (goto-char (point-min))
- (let ((entry (assoc current-language-environment
- language-info-alist)))
- (skip-chars-forward "\0-\177")
- (if (eobp)
- '(ascii)
- (delq nil (list 'ascii
- (or (car (last (assq 'charset entry)))
- 'latin-iso8859-1))))))))))
-
-(defun mm-read-charset (prompt)
- "Return a charset."
- (intern
- (completing-read
- prompt
- (mapcar (lambda (e) (list (symbol-name (car e))))
- mm-mime-mule-charset-alist)
- nil t)))
-
-(defun mm-quote-arg (arg)
- "Return a version of ARG that is safe to evaluate in a shell."
- (let ((pos 0) new-pos accum)
- ;; *** bug: we don't handle newline characters properly
- (while (setq new-pos (string-match "[]*[;!'`\"$\\& \t{} |()<>]" arg pos))
- (push (substring arg pos new-pos) accum)
- (push "\\" accum)
- (push (list (aref arg new-pos)) accum)
- (setq pos (1+ new-pos)))
- (if (= pos 0)
- arg
- (apply 'concat (nconc (nreverse accum) (list (substring arg pos)))))))
+ (let (charset)
+ (setq charset
+ (and (boundp 'current-language-environment)
+ (car (last (assq 'charset
+ (assoc current-language-environment
+ language-info-alist))))))
+ (if (eq charset 'ascii) (setq charset nil))
+ (or charset
+ (setq charset
+ (car (last (assq mail-parse-charset
+ mm-mime-mule-charset-alist)))))
+ (list 'ascii (or charset 'latin-iso8859-1)))))))))
+
+(if (fboundp 'shell-quote-argument)
+ (defalias 'mm-quote-arg 'shell-quote-argument)
+ (defun mm-quote-arg (arg)
+ "Return a version of ARG that is safe to evaluate in a shell."
+ (let ((pos 0) new-pos accum)
+ ;; *** bug: we don't handle newline characters properly
+ (while (setq new-pos (string-match "[]*[;!'`\"$\\& \t{} |()<>]" arg pos))
+ (push (substring arg pos new-pos) accum)
+ (push "\\" accum)
+ (push (list (aref arg new-pos)) accum)
+ (setq pos (1+ new-pos)))
+ (if (= pos 0)
+ arg
+ (apply 'concat (nconc (nreverse accum) (list (substring arg pos))))))))
(defun mm-auto-mode-alist ()
"Return an `auto-mode-alist' with only the .gz (etc) thingies."
projects / gnus / blobdiff