-;; Override parts of files.el for VMS.
-;; Copyright (C) 1986 Free Software Foundation, Inc.
+;;; vms-patch.el --- override parts of files.el for VMS
+
+;; Copyright (C) 1986, 1992, 2002, 2003, 2004,
+;; 2005, 2006 Free Software Foundation, Inc.
+
+;; Maintainer: FSF
+;; Keywords: vms
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 1, or (at your option)
+;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
+
+;;; Commentary:
+;;; Code:
+
+(setq auto-mode-alist (cons '(("\\.com\\'" . dcl-mode)) auto-mode-alist))
;;; Functions that need redefinition
(defun make-auto-save-file-name ()
"Return file name to use for auto-saves of current buffer.
-Does not consider auto-save-visited-file-name; that is checked
-before calling this function.
-This is a separate function so your .emacs file or site-init.el can redefine it.
-See also auto-save-file-name-p."
+This function does not consider `auto-save-visited-file-name';
+the caller should check that before calling this function.
+This is a separate function so that your `.emacs' file or the site's
+`site-init.el' can redefine it.
+See also `auto-save-file-name-p'."
(if buffer-file-name
(concat (file-name-directory buffer-file-name)
"_$"
(expand-file-name (concat "_$_" (make-legal-file-name (buffer-name)) "$"))))
(defun auto-save-file-name-p (filename)
- "Return t if FILENAME can be yielded by make-auto-save-file-name.
+ "Return t if FILENAME can be yielded by `make-auto-save-file-name'.
FILENAME should lack slashes.
-This is a separate function so your .emacs file or site-init.el can redefine it."
+This is a separate function so that your `.emacs' file or the site's
+`site-init.el' can redefine it."
(string-match "^_\\$.*\\$" filename))
+;;;
+;;; This goes along with kepteditor.com which defines these logicals
+;;; If EMACS_COMMAND_ARGS is defined, it supersedes EMACS_FILE_NAME,
+;;; which is probably set up incorrectly anyway.
+;;; The function command-line-again is a kludge, but it does the job.
+;;;
(defun vms-suspend-resume-hook ()
"When resuming suspended Emacs, check for file to be found.
If the logical name `EMACS_FILE_NAME' is defined, `find-file' that file."
- (let ((file (vms-system-info "LOGICAL" "EMACS_FILE_NAME")))
- (if file (find-file file))))
+ (let ((file (vms-system-info "LOGICAL" "EMACS_FILE_NAME"))
+ (args (vms-system-info "LOGICAL" "EMACS_COMMAND_ARGS"))
+ (line (vms-system-info "LOGICAL" "EMACS_FILE_LINE")))
+ (if (not args)
+ (if file
+ (progn (find-file file)
+ (if line (goto-line (string-to-number line)))))
+ (cd (file-name-directory file))
+ (vms-command-line-again))))
(setq suspend-resume-hook 'vms-suspend-resume-hook)
(setq suspend-hook 'vms-suspend-hook)
+;;;
+;;; A kludge that allows reprocessing of the command line. This is mostly
+;;; to allow a spawned VMS mail process to do something reasonable when
+;;; used in conjunction with the modifications to sysdep.c that allow
+;;; Emacs to attach to a "foster" parent.
+;;;
+(defun vms-command-line-again ()
+ "Reprocess command line arguments. VMS specific.
+Command line arguments are initialized from the logical EMACS_COMMAND_ARGS
+which is defined by kepteditor.com. On VMS this allows attaching to a
+spawned Emacs and doing things like \"emacs -l myfile.el -f doit\""
+ (let* ((args (downcase (vms-system-info "LOGICAL" "EMACS_COMMAND_ARGS")))
+ (command-line-args (list "emacs"))
+ (beg 0)
+ (end 0)
+ (len (length args))
+ this-char)
+ (if args
+ (progn
+;;; replace non-printable stuff with spaces
+ (while (< beg (length args))
+ (if (or (> 33 (setq this-char (aref args beg)))
+ (< 127 this-char))
+ (aset args beg 32))
+ (setq beg (1+ beg)))
+ (setq beg (1- (length args)))
+ (while (= 32 (aref args beg)) (setq beg (1- beg)))
+ (setq args (substring args 0 (1+ beg)))
+ (setq beg 0)
+;;; now start parsing args
+ (while (< beg (length args))
+ (while (and (< beg (length args))
+ (or (> 33 (setq this-char (aref args beg)))
+ (< 127 this-char))
+ (setq beg (1+ beg))))
+ (setq end (1+ beg))
+ (while (and (< end (length args))
+ (< 32 (setq this-char (aref args end)))
+ (> 127 this-char))
+ (setq end (1+ end)))
+ (setq command-line-args (append
+ command-line-args
+ (list (substring args beg end))))
+ (setq beg (1+ end)))
+ (command-line)))))
+
(defun vms-read-directory (dirname switches buffer)
(save-excursion
(set-buffer buffer)
"/SIZE/DATE/OWNER/WIDTH=(FILENAME=32,SIZE=5)")
(setq print-region-function
- '(lambda (start end command ign1 ign2 ign3 &rest switches)
+ (lambda (start end command ign1 ign2 ign3 &rest switches)
(write-region start end "sys$login:delete-me.txt")
(send-command-to-subprocess
1
(concat command
- " sys$login:delete-me.txt/name=""GNUprintbuffer"" "
+ " sys$login:delete-me.txt/name=\"GNUprintbuffer\" "
(mapconcat 'identity switches " "))
nil nil nil)))
+
+;;;
+;;; Fuctions for using Emacs as a VMS Mail editor
+;;;
+(autoload 'vms-pmail-setup "vms-pmail"
+ "Set up file assuming use by VMS Mail utility.
+The buffer is put into text-mode, auto-save is turned off and the
+following bindings are established.
+
+\\[vms-pmail-save-and-exit] vms-pmail-save-and-exit
+\\[vms-pmail-abort] vms-pmail-abort
+
+All other Emacs commands are still available."
+ t)
+
+;;;
+;;; Filename handling in the minibuffer
+;;;
+(defun vms-magic-right-square-brace ()
+ "\
+Insert a right square brace, but do other things first depending on context.
+During filename completion, when point is at the end of the line and the
+character before is not a right square brace, do one of three things before
+inserting the brace:
+ - If there are already two left square braces preceding, do nothing special.
+ - If there is a previous right-square-brace, convert it to dot.
+ - If the character before is dot, delete it.
+Additionally, if the preceding chars are right-square-brace followed by
+either \"-\" or \"..\", strip one level of directory hierarchy."
+ (interactive)
+ (when (and minibuffer-completing-file-name
+ (= (point) (point-max))
+ (not (= 93 (char-before))))
+ (cond
+ ;; Avoid clobbering: user:[one.path][another.path
+ ((search-backward "[" (field-beginning) t 2))
+ ((search-backward "]" (field-beginning) t)
+ (delete-char 1)
+ (insert ".")
+ (goto-char (point-max)))
+ ((= ?. (char-before))
+ (delete-char -1)))
+ (goto-char (point-max))
+ (let ((specs '(".." "-"))
+ (pmax (point-max)))
+ (while specs
+ (let* ((up (car specs))
+ (len (length up))
+ (cut (- (point) len)))
+ (when (and (< (1+ len) pmax)
+ (= ?. (char-before cut))
+ (string= up (buffer-substring cut (point))))
+ (delete-char (- (1+ len)))
+ (while (not (let ((c (char-before)))
+ (or (= ?. c) (= 91 c))))
+ (delete-char -1))
+ (when (= ?. (char-before)) (delete-char -1))
+ (setq specs nil)))
+ (setq specs (cdr specs)))))
+ (insert "]"))
+
+(defun vms-magic-colon ()
+ "\
+Insert a colon, but do other things first depending on context.
+During filename completion, when point is at the end of the line
+and the line contains a right square brace, remove all characters
+from the beginning of the line up to and including such brace.
+This enables one to type a new filespec without having to delete
+the old one."
+ (interactive)
+ (when (and minibuffer-completing-file-name
+ (= (point) (point-max))
+ (search-backward "]" (field-beginning) t))
+ (delete-region (field-beginning) (1+ (point)))
+ (goto-char (point-max)))
+ (insert ":"))
+
+(let ((m minibuffer-local-completion-map))
+ (define-key m "]" 'vms-magic-right-square-brace)
+ (define-key m "/" 'vms-magic-right-square-brace)
+ (define-key m ":" 'vms-magic-colon))
+
+;;; arch-tag: c178494e-2c37-4d02-99b7-e47e615656cf
+;;; vms-patch.el ends here