;;; nnheaderxm.el --- making Gnus backends work under XEmacs
-;; Copyright (C) 1996 Free Software Foundation, Inc.
+;; Copyright (C) 1996,97,98,99 Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; This file is part of GNU Emacs.
(,function ,@args))
time repeat))
-(defun nnheader-xmas-cancel-timer (timer)
- (delete-itimer timer))
-
-;; Written by Erik Naggum <erik@naggum.no>.
-;; Saved by Steve Baur <steve@miranova.com>.
-(defun nnheader-xmas-insert-file-contents-literally (filename &optional visit beg end replace)
- "Like `insert-file-contents', q.v., but only reads in the file.
-A buffer may be modified in several ways after reading into the buffer due
-to advanced Emacs features, such as file-name-handlers, format decoding,
-find-file-hooks, etc.
- This function ensures that none of these modifications will take place."
- (let ( ; (file-name-handler-alist nil)
- (format-alist nil)
- (after-insert-file-functions nil)
- (find-buffer-file-type-function
- (if (fboundp 'find-buffer-file-type)
- (symbol-function 'find-buffer-file-type)
- nil)))
- (unwind-protect
- (progn
- (fset 'find-buffer-file-type (lambda (filename) t))
- (insert-file-contents filename visit beg end replace))
- (if find-buffer-file-type-function
- (fset 'find-buffer-file-type find-buffer-file-type-function)
- (fmakunbound 'find-buffer-file-type)))))
-
-(defun nnheader-xmas-find-file-noselect (filename &optional nowarn rawfile)
- "Read file FILENAME into a buffer and return the buffer.
-If a buffer exists visiting FILENAME, return that one, but
-verify that the file has not changed since visited or saved.
-The buffer is not selected, just returned to the caller."
- (setq filename
- (abbreviate-file-name
- (expand-file-name filename)))
- (if (file-directory-p filename)
- (if find-file-run-dired
- (dired-noselect filename)
- (error "%s is a directory." filename))
- (let* ((buf (get-file-buffer filename))
- (truename (abbreviate-file-name (file-truename filename)))
- (number (nthcdr 10 (file-attributes truename)))
- ;; Find any buffer for a file which has same truename.
- (other (and (not buf)
- (get-file-buffer filename)))
- error)
- ;; Let user know if there is a buffer with the same truename.
- (if other
- (progn
- (or nowarn
- (string-equal filename (buffer-file-name other))
- (message "%s and %s are the same file"
- filename (buffer-file-name other)))
- ;; Optionally also find that buffer.
- (if (or (and (boundp 'find-file-existing-other-name)
- find-file-existing-other-name)
- find-file-visit-truename)
- (setq buf other))))
- (if buf
- (or nowarn
- (verify-visited-file-modtime buf)
- (cond ((not (file-exists-p filename))
- (error "File %s no longer exists!" filename))
- ((yes-or-no-p
- (if (string= (file-name-nondirectory filename)
- (buffer-name buf))
- (format
- (if (buffer-modified-p buf)
- "File %s changed on disk. Discard your edits? "
- "File %s changed on disk. Reread from disk? ")
- (file-name-nondirectory filename))
- (format
- (if (buffer-modified-p buf)
- "File %s changed on disk. Discard your edits in %s? "
- "File %s changed on disk. Reread from disk into %s? ")
- (file-name-nondirectory filename)
- (buffer-name buf))))
- (save-excursion
- (set-buffer buf)
- (revert-buffer t t)))))
- (save-excursion
-;;; The truename stuff makes this obsolete.
-;;; (let* ((link-name (car (file-attributes filename)))
-;;; (linked-buf (and (stringp link-name)
-;;; (get-file-buffer link-name))))
-;;; (if (bufferp linked-buf)
-;;; (message "Symbolic link to file in buffer %s"
-;;; (buffer-name linked-buf))))
- (setq buf (create-file-buffer filename))
- ;; (set-buffer-major-mode buf)
- (set-buffer buf)
- (erase-buffer)
- (if rawfile
- (condition-case ()
- (nnheader-insert-file-contents-literally filename t)
- (file-error
- ;; Unconditionally set error
- (setq error t)))
- (condition-case ()
- (insert-file-contents filename t)
- (file-error
- ;; Run find-file-not-found-hooks until one returns non-nil.
- (or t ; (run-hook-with-args-until-success 'find-file-not-found-hooks)
- ;; If they fail too, set error.
- (setq error t)))))
- ;; Find the file's truename, and maybe use that as visited name.
- (setq buffer-file-truename truename)
- (setq buffer-file-number number)
- ;; On VMS, we may want to remember which directory in a search list
- ;; the file was found in.
- (and (eq system-type 'vax-vms)
- (let (logical)
- (if (string-match ":" (file-name-directory filename))
- (setq logical (substring (file-name-directory filename)
- 0 (match-beginning 0))))
- (not (member logical find-file-not-true-dirname-list)))
- (setq buffer-file-name buffer-file-truename))
- (if find-file-visit-truename
- (setq buffer-file-name
- (setq filename
- (expand-file-name buffer-file-truename))))
- ;; Set buffer's default directory to that of the file.
- (setq default-directory (file-name-directory filename))
- ;; Turn off backup files for certain file names. Since
- ;; this is a permanent local, the major mode won't eliminate it.
- (and (not (funcall backup-enable-predicate buffer-file-name))
- (progn
- (make-local-variable 'backup-inhibited)
- (setq backup-inhibited t)))
- (if rawfile
- nil
- (after-find-file error (not nowarn)))))
- buf)))
-
-(fset 'nnheader-run-at-time 'nnheader-xmas-run-at-time)
-(fset 'nnheader-cancel-timer 'nnheader-xmas-cancel-timer)
-(fset 'nnheader-find-file-noselect 'nnheader-xmas-find-file-noselect)
-(fset 'nnheader-insert-file-contents-literally
- (if (fboundp 'insert-file-contents-literally)
- 'insert-file-contents-literally
- 'nnheader-xmas-insert-file-contents-literally))
+(defalias 'nnheader-run-at-time 'nnheader-xmas-run-at-time)
+(defalias 'nnheader-cancel-timer 'delete-itimer)
+(defalias 'nnheader-cancel-function-timers 'ignore)
(provide 'nnheaderxm)