;;; format.el --- read and save files in multiple formats
-;; Copyright (c) 1994, 1995, 1997, 1999 Free Software Foundation
+;; Copyright (c) 1994, 1995, 1997, 1999, 2004 Free Software Foundation
;; Author: Boris Goldowsky <boris@gnu.org>
;; change this variable, or use `format-write-file'.
;;
;; Auto-save files are normally created in the same format as the visited
-;; file, but the variable `auto-save-file-format' can be set to a
+;; file, but the variable `buffer-auto-save-file-format' can be set to a
;; particularly fast or otherwise preferred format to be used for
;; auto-saving (or nil to do no encoding on auto-save files, but then you
;; risk losing any text-properties in the buffer).
;;; Code:
(put 'buffer-file-format 'permanent-local t)
+(put 'buffer-auto-save-file-format 'permanent-local t)
(defvar format-alist
'((text/enriched "Extended MIME text/enriched format."
(let ((copy-buf (get-buffer-create (format " *Format Temp %d*"
format-count)))
(sel-disp selective-display)
- (multibyte enable-multibyte-characters))
+ (multibyte enable-multibyte-characters)
+ (coding-system buffer-file-coding-system))
(with-current-buffer copy-buf
(setq selective-display sel-disp)
- (set-buffer-multibyte multibyte))
+ (set-buffer-multibyte multibyte)
+ (setq buffer-file-coding-system coding-system))
(copy-to-buffer copy-buf from to)
(set-buffer copy-buf)
(format-insert-annotations write-region-annotations-so-far from)
(unwind-protect
(progn
;; Don't record undo information for the decoding.
-
+
(if (null format)
;; Figure out which format it is in, remember list in `format'.
(let ((try format-alist))
(let ((do format) f)
(while do
(or (setq f (assq (car do) format-alist))
- (error "Unknown format" (car do)))
+ (error "Unknown format %s" (car do)))
;; Decode:
(if (nth 3 f)
(setq end (format-decode-run-method (nth 3 f) begin end)))
(setq format (reverse format)))
(if visit-flag
(setq buffer-file-format format)))
-
+
(set-buffer-modified-p mod))
;; Return new length of region
(funcall to-fn beg end (current-buffer)))))
(setq format (cdr format)))))))
-(defun format-write-file (filename format)
+(defun format-write-file (filename format &optional confirm)
"Write current buffer into file FILENAME using some FORMAT.
-Makes buffer visit that file and sets the format as the default for future
+Make buffer visit that file and set the format as the default for future
saves. If the buffer is already visiting a file, you can specify a directory
-name as FILENAME, to write a file of the same old name in that directory."
+name as FILENAME, to write a file of the same old name in that directory.
+
+If optional third arg CONFIRM is non-nil, this function asks for
+confirmation before overwriting an existing file. Interactively,
+confirmation is required unless you supply a prefix argument."
(interactive
;; Same interactive spec as write-file, plus format question.
(let* ((file (if buffer-file-name
nil nil (buffer-name))))
(fmt (format-read (format "Write file `%s' in format: "
(file-name-nondirectory file)))))
- (list file fmt)))
+ (list file fmt (not current-prefix-arg))))
(let ((old-formats buffer-file-format)
preserve-formats)
(dolist (fmt old-formats)
(dolist (fmt preserve-formats)
(unless (memq fmt buffer-file-format)
(setq buffer-file-format (append buffer-file-format (list fmt))))))
- (write-file filename))
+ (write-file filename confirm))
(defun format-find-file (filename format)
"Find the file FILENAME using data format FORMAT.
the part of the file to read.
The return value is like the value of `insert-file-contents':
-a list (ABSOLUTE-FILE-NAME . SIZE)."
+a list (ABSOLUTE-FILE-NAME SIZE)."
(interactive
;; Same interactive spec as write-file, plus format question.
(let* ((file (read-file-name "Find file: "))
(setq size (nth 1 value)))
(if format
(setq size (format-decode format size)
- value (cons (car value) size)))
+ value (list (car value) size)))
value))
(defun format-read (&optional prompt)
;; Now (cdr p) is the cons to delete
(setcdr p (cdr cons))
list)))
-
+
(defun format-make-relatively-unique (a b)
"Delete common elements of lists A and B, return as pair.
Compares using `equal'."
(message "Unknown annotations: %s" unknown-ans))))))
(defun format-subtract-regions (minu subtra)
- "Remove from the regions in MINUend the regions in SUBTRAhend.
+ "Remove from the regions in MINUEND the regions in SUBTRAHEND.
A region is a dotted pair (FROM . TO). Both parameters are lists of
regions. Each list must contain nonoverlapping, noncontiguous
regions, in descending order. The result is also nonoverlapping,
noncontiguous, and in descending order. The first element of MINUEND
can have a cdr of nil, indicating that the end of that region is not
-yet known."
+yet known.
+
+\(fn MINUEND SUBTRAHEND)"
(let* ((minuend (copy-alist minu))
(subtrahend (copy-alist subtra))
(m (car minuend))
Inserts each element of the given LIST of buffer annotations at its
appropriate place. Use second arg OFFSET if the annotations' locations are
not relative to the beginning of the buffer: annotations will be inserted
-at their location-OFFSET+1 \(ie, the offset is treated as the character number
-of the first character in the buffer)."
+at their location-OFFSET+1 \(ie, the offset is treated as the position of
+the first character in the buffer)."
(if (not offset)
(setq offset 0)
(setq offset (1- offset)))
(defun format-annotate-location (loc all ignore translations)
"Return annotation(s) needed at location LOC.
-This includes any properties that change between LOC-1 and LOC.
+This includes any properties that change between LOC - 1 and LOC.
If ALL is true, don't look at previous location, but generate annotations for
all non-nil properties.
Third argument IGNORE is a list of text-properties not to consider.
(provide 'format)
+;;; arch-tag: c387e9c7-a93d-47bf-89bc-8ca67e96755a
;;; format.el ends here
HCoop / bpt / emacs.git / blobdiff