xemacs-beta: lisp/packages/gnuserv.el comparison

comparison lisp/packages/gnuserv.el @ 70:131b0175ea99 r20-0b30

Import from CVS: tag r20-0b30

author	cvs
date	Mon, 13 Aug 2007 09:02:59 +0200
parents	56c54cf7c5b6
children	c7528f8e288d

comparison

equal deleted inserted replaced

-:804d1389bcd6
+:131b0175ea99
 ; This file is part of GNU Emacs.
 ;
 ; Copying is permitted under those conditions described by the GNU
 ; General Public License.
 ;
-; Copyright (C) 1989-1996  Free Software Foundation, Inc.
+; Copyright (C) 1989-1994  Free Software Foundation, Inc.
 ;
 ; Author: Andy Norman (ange@hplb.hpl.hp.com) based on
 ;         'lisp/server.el' from the 18.52 GNU Emacs distribution.
 ;
 ; Please mail bugs and suggestions to the author at the above address.
 ; Ben Wing <wing@666.com> sometime in 1995
 ; Updated to allow `gnuattach'-type connections to the existing TTY
 ;
 ; Ben Wing <wing@666.com> May/1996
 ; patch to get TTY terminal type correct.
-;
-; Jan Vroonhof <vroonhof@math.ethz.ch> July/1996
-; ported the server-temp-file-regexp feature from server.el
-; ported server hooks from server.el
-; ported kill-*-query functions from server.el (and made it optional)
-; synced other behaviour with server.el
 (defconst gnuserv-rcs-header-id "!Header: gnuserv.el,v 2.1 95/02/16 12:00:16 arup alpha !")
 (if (and (boundp 'server-buffer-clients)
 	 (not (featurep 'gnuserv)))
 (error "Can't run gnuserv because server.el appears to be loaded already"))
-;;;###autoload
 (defvar gnuserv-frame nil
 "*If non-nil, the frame to be used to display all edited files.
 If nil, then a new frame is created for each file edited.
 This variable has no effect in XEmacs versions older than 19.9.")
 (defvar server-done-function 'kill-buffer
 "*A function of one argument, a buffer, which removes the buffer after editing.
-Functions such as 'kill-buffer' and 'bury-buffer' are good values. See also
+Functions such as 'kill-buffer' and 'bury-buffer' are good values.")
-`server-done-temp-file-function'")
-(defvar server-done-temp-file-function 'kill-buffer
-"*A function of one argument, a buffer, which removes the buffer after editing a
-temporary file. Functions such as 'kill-buffer' and 'bury-buffer' are
-good values. See also `server-done-function'")
 (defvar server-program "gnuserv"
 "*The program to use as the edit server")
-(defvar server-visit-hook nil
-"*List of hooks to call when visiting a file for the Emacs server.")
-;; defined by server.el but obsolete?
-;; (defvar server-switch-hook nil
-;;  "*List of hooks to call when switching to a buffer for the Emacs server.")
-(defvar server-done-hook nil
-"*List of hooks to call when done editing a buffer for the Emacs server.")
 (defvar server-process nil
 "The current server process")
 (defvar server-string ""
 "The last input string from the server")
-(defvar server-kill-last-frame nil
-"set to t to kill last frame")
 (defvar current-client nil
 "The client we are currently talking to")
 (defvar server-clients nil
 "List of current server clients.
 Each element is (CLIENTID BUFFER...) where CLIENTID is an integer
 that can be given to the server process to identify a client.
 When a buffer is killed, it is removed from this list.")
-(defvar server-kill-quietly nil
-"If this variable is set then don't confirm kills of buffers with
-clients attached")
 (defvar server-buffer-clients nil
 "List of client ids for clients requesting editing of the current buffer.")
-(defvar server-temp-file-regexp "^/tmp/Re\\|/draft$"
-"*Regexp which should match filenames of temporary files
-which are deleted and reused after each edit
-by the programs that invoke the emacs server.")
-(defvar server-make-temp-file-backup nil
-"Non-nil makes the server backup temporary files also")
 (make-variable-buffer-local 'server-buffer-clients)
 (setq-default server-buffer-clients nil)
 (or (assq 'server-buffer-clients minor-mode-alist)
 (setq minor-mode-alist (cons '(server-buffer-clients " Server")
 				 minor-mode-alist)))
-(defun server-temp-file-p (buffer)
-"Return non-nil if BUFFER contains a file considered temporary.
-These are files whose names suggest they are repeatedly
-reused to pass information to another program.
-The variable `server-temp-file-regexp' controls which filenames
-are considered temporary."
-(and (buffer-file-name buffer)
-(string-match server-temp-file-regexp (buffer-file-name buffer))))
 (defun server-log (string)
 "If a *server* buffer exists, write STRING to it for logging purposes."
 (if (get-buffer "*server*")
 (save-excursion
 (process-kill-without-query server-process)))
 ;; make gnuserv-start an alias to server-start, for backward compatibility
 (fset 'server-start (function gnuserv-start))
-; Can gnuserv handle commands in close succesion? (See server.el line 283) JV
 (defun server-write-to-client (client form)
 "Write the given form to the given client via the server process."
 (if (and client
 	   (eq (process-status server-process) 'run))
 (let* ((result (format "%s" form))
 afterwards in order to not keep the client waiting."
 (server-write-to-client current-client nil)
 (setq current-client nil)
 (eval form))
 (defun server-make-window-visible ()
 "Try to make this window even more visible."
-(and (or (and (boundp 'window-system)
+(cond
-		(boundp 'window-system-version)
+;; XEmacs can (in theory) raise any kind of frame
-		(eq window-system 'x)
+((fboundp 'raise-frame)
-		(eq window-system-version 11))
+(raise-frame (selected-frame)))
-	   (and (fboundp 'console-type)
+((not (and (boundp 'window-system) window-system))
-		(eq 'x (console-type))))
+nil)
-(cond ((fboundp 'raise-frame)
+((fboundp 'deiconify-screen)
-	      (raise-frame (selected-frame)))
+(deiconify-screen (selected-screen))
-	     ((fboundp 'deiconify-screen)
+(raise-screen (selected-screen)))
-	      (deiconify-screen (selected-screen))
+((fboundp 'mapraised-screen)
-	      (raise-screen (selected-screen)))
+(mapraised-screen))
-	     ((fboundp 'mapraised-screen)
+((fboundp 'x-remap-window)
-	      (mapraised-screen))
+(x-remap-window)
-	     ((fboundp 'x-remap-window)
+;; give window chance to re-display text
-	      (x-remap-window)
+(accept-process-output))))
-	      ;; give window chance to re-display text
-	      (accept-process-output)))))
+(defun server-tty-find-file (tty termtype file)
+(let ((device (make-tty-device tty termtype)))
-(defun server-tty-find-file (tty termtype pid file)
-(let ((device (make-tty-device tty termtype pid )))
 (select-frame (make-frame nil device))
 (if (not file)
 	(switch-to-buffer (get-buffer-create "*scratch*"))
-(find-file file)))
+(find-file file))))
-(run-hooks 'server-visit-hook))
 (defun server-find-file (file)
 "Edit file FILENAME.
 Switch to a buffer visiting file FILENAME,
 creating one if none already exists."
 	   (if (screenp gnuserv-frame)
 	       (progn (select-screen gnuserv-frame)
 		      (find-file file))
 	     (select-screen (create-screen (find-file-noselect file)))))
-	  (t (find-file file))))                          ;; emacs18+
+	  (t (find-file file)))))                        ;; emacs18+
-(run-hooks 'server-visit-hook))
 (defun server-edit-files-quickly (list)
 "For each (line-number . file) pair in LIST, edit the file at line-number.
 Unlike (server-edit-files), no information is saved about clients waiting on
 (message (substitute-command-keys
 	    (if (and (boundp 'infodock-version) window-system)
 		"Type {\\[server-edit]} or select Frame/Delete to finish edit."
 	      "When done with a buffer, type \\[server-edit]."))))
-(defun server-tty-edit-files (tty termtype pid list)
+(defun server-tty-edit-files (tty termtype list)
 "For each (line-number . file) pair in LIST, edit the file at line-number.
 Save enough information for (server-kill-buffer) to inform the client when
 the edit is finished."
 (or list (setq list '((1 . nil))))
 (while list
 (let ((line (car (car list)))
 	  (path (cdr (car list))))
-(server-tty-find-file tty termtype pid path)
+(server-tty-find-file tty termtype path)
 (server-make-window-visible)
 (let ((old-clients (assq current-client server-clients))
 	    (buffer (current-buffer)))
 	(goto-line line)
 	(setq server-buffer-clients
 		(delq buffer client)
 		(if (cdr client)	;pending buffers?
 		    nil			;yep
 		  (server-write-to-client (car client) nil) ;nope, tell client
 		  (setq server-clients (delq client server-clients))))
-	      (setq old-clients (cdr old-clients)))
+	      (setq old-clients (cdr old-clients))))))))
-	    t)))))
-;; Ask before killing a server buffer.
-;; It was suggested to release its client instead,
-;; but I think that is dangerous--the client would proceed
-;; using whatever is on disk in that file. -- rms.
-(defun server-kill-buffer-query-function ()
-(or server-kill-quietly
-(not server-buffer-clients)
-(yes-or-no-p (format "Buffer `%s' still has clients; kill it? "
-			   (buffer-name (current-buffer))))))
-(add-hook 'kill-buffer-query-functions
-	  'server-kill-buffer-query-function)
-(defun server-kill-emacs-query-function ()
-(let (live-client
-	(tail server-clients))
-;; See if any clients have any buffers that are still alive.
-(while tail
-(if (memq t (mapcar 'stringp (mapcar 'buffer-name (cdr (car tail)))))
-	  (setq live-client t))
-(setq tail (cdr tail)))
-(or server-kill-quietly
-(not live-client)
-	(yes-or-no-p "Server buffers still have clients; exit anyway? "))))
-(add-hook 'kill-emacs-query-functions 'server-kill-emacs-query-function)
 (defun server-kill-all-local-variables ()
 "Eliminate all the buffer-local variable values of the current buffer.
 This buffer will then see the default values of all variables.
 (defun server-buffer-done (buffer)
 "Mark BUFFER as \"done\" for its client(s).
 Buries the buffer, and returns another server buffer as a suggestion for the
 new current buffer."
-; Note we do NOT return a list with a killed flag, doesn't seem usefull to me. JV
 (let ((next-buffer nil)
 	(old-clients server-clients))
 (while old-clients
 (let ((client (car old-clients)))
 	(or next-buffer
 	    (setq next-buffer (nth 1 (memq buffer client))))
 	(delq buffer client)
-	;; Delete all dead buffers from CLIENT.  (Why? JV , copyed from server.el)
-	(let ((tail client))
-	  (while tail
-	    (and (bufferp (car tail))
-		 (null (buffer-name (car tail)))
-		 (delq (car tail) client))
-	    (setq tail (cdr tail))))
 	;; If client now has no pending buffers,
 	;; tell it that it is done, and forget it entirely.
 	(if (cdr client)
 	    nil
-	  (if (buffer-name buffer)
+	  (server-write-to-client (car client) nil)
-	      (save-excursion
+	  (setq server-clients (delq client server-clients))))
-		(set-buffer buffer)
-		(setq server-buffer-clients nil)
-		(run-hooks 'server-done-hook)))
-	  ; Order is important here --
-	  ; server-kill-buffer tries to notify clients that
-	  ; they are done, too, but if we try and notify twice,
-	  ; we are h0zed -- Hunter Kelly 3/3/97
-	  (setq server-clients (delq client server-clients))
-	  (if (server-temp-file-p buffer)
-	      (funcall server-done-temp-file-function buffer)
-	    (funcall server-done-function buffer))
-	  (server-write-to-client (car client) nil)))
 (setq old-clients (cdr old-clients)))
+(if (buffer-name buffer)
+	(save-excursion
+	  (set-buffer buffer)
+	  (setq server-buffer-clients nil)))
+(funcall server-done-function buffer)
 next-buffer))
 (defun mh-draft-p (buffer)
 "Return non-nil if this BUFFER is an mh <draft> file. Since MH deletes
 "Offer to save current buffer and mark it as \"done\" for clients.
 Also bury it, and return a suggested new current buffer."
 (let ((buffer (current-buffer)))
 (if server-buffer-clients
 	(progn
-	  (if (mh-draft-p buffer);; Does this comflict with temp-file ? JV
+	  (if (mh-draft-p buffer)
 	      (progn (save-buffer)
 		     (write-region (point-min) (point-max)
 				   (concat buffer-file-name "~"))
 		     (kill-buffer buffer))
-	    (if (server-temp-file-p buffer)
+	    (if (and (buffer-modified-p)
-		;; For a temp file, save, and do NOT make a non-numeric backup
+		     (y-or-n-p (concat "Save file " buffer-file-name "? ")))
-		;; Why does server.el explicitly back up temporary files?
+		(save-buffer buffer)))
-		(let ((version-control nil)
-		      (buffer-backed-up (not server-make-temp-file-backup)))
-		  (save-buffer))
-	      (if (and (buffer-modified-p)
-		       (y-or-n-p (concat "Save file " buffer-file-name "? ")))
-		  (save-buffer buffer))))
 	  (server-buffer-done buffer)))))
 (defun server-edit (&optional arg)
-"Switch to next server editing
+"Switch to next server editing buffer and mark current one as \"done\".
-buffer and mark current one as \"done\". If a server buffer is
+If a server buffer is current, it is marked \"done\" and optionally saved.
-current, it is marked \"done\" and optionally saved. MH <draft> files
+MH <draft> files are always saved and backed up, no questions asked.
-are always saved and backed up, no questions asked. Files that match
+When all of a client's buffers are marked as \"done\", the client is notified.
-server-temp-file-regexp are considered temporary and are saved
-unconditionally and
-backed up if server-make-temp-file-backup is non-nil. When all of a
-client's buffers are marked as \"done\", the client is notified.
 If invoked with a prefix argument, or if there is no server process running,
-starts server process and that is all.  Invoked by \\[server-edit].
+starts server process and that is all.  Invoked by \\[server-edit]."
-If `server-kill-last-frame' is t, then the final frame will be killed."
 (interactive "P")
 (if (or arg
 	  (not server-process)
 	  (memq (process-status server-process) '(signal exit)))
 (server-start nil)
 (if server-buffer-clients
-	(progn (server-done-and-switch)
+	(progn (server-switch-buffer (server-done))
 	       (cond ((fboundp 'console-type)        ;; XEmacs 19.14+
 		      (or (and (equal (console-type) 'x)
 			       gnuserv-frame
 			       (frame-live-p gnuserv-frame))
 			  (condition-case ()
-			      (delete-frame (selected-frame)
+			      (delete-frame (selected-frame) nil)
-					    server-kill-last-frame)
 			    (error
 			     (message "Not deleting last visible frame...")))))
 		     ((or (not window-system)
 			  (and gnuserv-frame
 			       (or (and (fboundp 'frame-live-p)
 		      (delete-screen))))
 (error
 "(server-edit): Use only on buffers created by external programs.")
 )))
-(defun server-switch-buffer-internal (next-buffer always)
+(defun server-switch-buffer (next-buffer)
 "Switch to NEXT-BUFFER if a live buffer, otherwise switch to another buffer
-with gnuserv clients. If no such buffer is available, we switch to
+with gnuserv clients. If no such buffer is available, simply choose another
-another normal buffer if `always' is non-nil!"
+one."
-;; switching
 (if next-buffer
 (if (and (bufferp next-buffer)
 	       (buffer-name next-buffer))
 	  (switch-to-buffer next-buffer)
 	;; If NEXT-BUFFER is a dead buffer,
 	;; remove the server records for it
 	;; and try the next surviving server buffer.
-	(server-switch-buffer-internal
+	(server-switch-buffer
-	 (server-buffer-done next-buffer) always))
+	 (server-buffer-done next-buffer)))
 (if server-clients
-	  (server-switch-buffer-internal (nth 1 (car server-clients)) always)
+	(server-switch-buffer (nth 1 (car server-clients)))
-	(if always
+(switch-to-buffer (other-buffer)))))
-	    (switch-to-buffer (other-buffer))))))
-;; For compatability
-(defun server-switch-buffer (next-buffer)
-(server-switch-buffer-internal next-buffer t))
-;; The below function calles server-done and switches to the next
-;; sensible buffer. This implementation works regardless of the values
-;; of server-*-function and doens't need the tail recursion
-;; variable passing of server.el. It is more transparant too. JV
-(defun server-done-and-switch ()
-"Be done with the current buffer and switch to another server buffer
-if there is one, otherwise just switch buffer"
-(let ((old-current (current-buffer)))
-(server-switch-buffer-internal (server-done) nil)
-(if (eq old-current (current-buffer))
-	(switch-to-buffer (other-buffer)))))
 (global-set-key "\C-x#" 'server-edit)
 (provide 'gnuserv)
-;;; gnuserv.el ends here

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comparison lisp/packages/gnuserv.el @ 70:131b0175ea99 r20-0b30