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author | Dan Nicolaescu <dann@ics.uci.edu> | 2008-07-05 18:27:16 +0000 |
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committer | Dan Nicolaescu <dann@ics.uci.edu> | 2008-07-05 18:27:16 +0000 |
commit | 16952f1875517eef829cc64897cd44a7c8c20c5e (patch) | |
tree | d60d52f46f853630498904155e067cfea21d0385 /lisp/obsolete/vms-patch.el | |
parent | 29bd139205487792d2f79583195e5560ac65d8c2 (diff) | |
download | emacs-16952f1875517eef829cc64897cd44a7c8c20c5e.tar.gz |
* vms-patch.el, vmsproc.el, mail/vms-pmail.el: Move to obsolete dir.
Diffstat (limited to 'lisp/obsolete/vms-patch.el')
-rw-r--r-- | lisp/obsolete/vms-patch.el | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/lisp/obsolete/vms-patch.el b/lisp/obsolete/vms-patch.el new file mode 100644 index 00000000000..14c9bd19e88 --- /dev/null +++ b/lisp/obsolete/vms-patch.el @@ -0,0 +1,270 @@ +;; -*- no-byte-compile: t -*- +;; Not byte compiled because it uses functions that are not part of +;; emacs, so it would generate unnecessary warnings. +;;; vms-patch.el --- override parts of files.el for VMS + +;; Copyright (C) 1986, 1992, 2001, 2002, 2003, 2004, +;; 2005, 2006, 2007, 2008 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 3 of the License, or +;; (at your option) any later version. + +;; GNU Emacs is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. + +;;; Commentary: + +;;; Code: + +(defvar print-region-function) + +(setq auto-mode-alist (cons '(("\\.com\\'" . dcl-mode)) auto-mode-alist)) + +;;; Functions that need redefinition + +;;; VMS file names are upper case, but buffer names are more +;;; convenient in lower case. + +(defun create-file-buffer (filename) + "Create a suitably named buffer for visiting FILENAME, and return it. +FILENAME (sans directory) is used unchanged if that name is free; +otherwise a string <2> or <3> or ... is appended to get an unused name." + (generate-new-buffer (downcase (file-name-nondirectory filename)))) + +;;; Given a string FN, return a similar name which is a valid VMS filename. +;;; This is used to avoid invalid auto save file names. +(defun make-valid-file-name (fn) + (setq fn (copy-sequence fn)) + (let ((dot nil) (indx 0) (len (length fn)) chr) + (while (< indx len) + (setq chr (aref fn indx)) + (cond + ((eq chr ?.) (if dot (aset fn indx ?_) (setq dot t))) + ((not (or (and (>= chr ?a) (<= chr ?z)) (and (>= chr ?A) (<= chr ?Z)) + (and (>= chr ?0) (<= chr ?9)) + (eq chr ?$) (eq chr ?_) (and (eq chr ?-) (> indx 0)))) + (aset fn indx ?_))) + (setq indx (1+ indx)))) + fn) + +(define-obsolete-function-alias 'make-legal-file-name 'make-valid-file-name "23.1") + +;;; Auto save filesnames start with _$ and end with $. + +(defun make-auto-save-file-name () + "Return file name to use for auto-saves of current buffer. +This function does not consider `auto-save-visited-file-name'; +the caller should check that before calling this function. +This is a separate function so that your `.emacs' file or the site's +`site-init.el' can redefine it. +See also `auto-save-file-name-p'." + (if buffer-file-name + (concat (file-name-directory buffer-file-name) + "_$" + (file-name-nondirectory buffer-file-name) + "$") + (expand-file-name (concat "_$_" (make-valid-file-name (buffer-name)) "$")))) + +(defun auto-save-file-name-p (filename) + "Return t if FILENAME can be yielded by `make-auto-save-file-name'. +FILENAME should lack slashes. +This is a separate function so that your `.emacs' file or the site's +`site-init.el' can redefine it." + (string-match "^_\\$.*\\$" 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")) + (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) + +(defun vms-suspend-hook () + "Don't allow suspending if logical name `DONT_SUSPEND_EMACS' is defined." + (if (vms-system-info "LOGICAL" "DONT_SUSPEND_EMACS") + (error "Can't suspend this emacs")) + nil) + +(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) + (subprocess-command-to-buffer + (concat "DIRECTORY " switches " " dirname) + buffer) + (goto-char (point-min)) + ;; Remove all the trailing blanks. + (while (search-forward " \n") + (forward-char -1) + (delete-horizontal-space)) + (goto-char (point-min)))) + +(setq dired-listing-switches + "/SIZE/DATE/OWNER/WIDTH=(FILENAME=32,SIZE=5)") + +(setq print-region-function + (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\" " + (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 |