xemacs-21.4 / lisp / winnt.el

;;; winnt.el --- Lisp routines for Windows NT.

;; Copyright (C) 1994 Free Software Foundation, Inc.

;; Maintainer: XEmacs Development Team
;; Keywords: mouse, dumped

;; This file is part of XEmacs.

;; XEmacs 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 2, or (at your option)
;; any later version.

;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;;; Synched up with: Not synched with FSF.  Almost completely divergent.

;;; Commentary:

;; This file is dumped with XEmacs for MS Windows (without cygwin).

;; Based on NT Emacs version by Geoff Voelker (voelker@cs.washington.edu)
;; Ported to XEmacs by Marc Paquette <marcpa@cam.org>
;; Largely modified by Kirill M. Katsnelson <kkm@kis.ru>

;;; Code:

;; The cmd.exe shell uses the "/c" switch instead of the "-c" switch
;; for executing its command line argument (from simple.el).
;; #### Oh if we had an alist of shells and their command switches.
(setq shell-command-switch "/c")

;; For appending suffixes to directories and files in shell completions.
(defun nt-shell-mode-hook ()
  (setq comint-completion-addsuffix '("\\" . " ")
	comint-process-echoes t))
(add-hook 'shell-mode-hook 'nt-shell-mode-hook)

;; Use ";" instead of ":" as a path separator (from files.el).
(setq path-separator ";")

;; Set the null device (for compile.el).
;; #### There should be such a global thingy as null-device - kkm
(setq grep-null-device "NUL")

;; Set the grep regexp to match entries with drive letters.
(setq grep-regexp-alist
  '(("^\\(\\([a-zA-Z]:\\)?[^:( \t\n]+\\)[:( \t]+\\([0-9]+\\)[:) \t]" 1 3)))

;;----------------------------------------------------------------------
;; Autosave hack
;;--------------------

;; Avoid creating auto-save file names containing invalid characters
;; (primarily "*", eg. for the *mail* buffer).
;; Avoid "doc lost for function" warning
(defun original-make-auto-save-file-name (&optional junk)
  "You do not want to call this."
  )
(fset 'original-make-auto-save-file-name
      (symbol-function 'make-auto-save-file-name))

(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' as that variable is checked
before calling this function.  You can redefine this for customization.
See also `auto-save-file-name-p'."
  (let ((name (original-make-auto-save-file-name))
	(start 0))
    ;; destructively replace occurences of * or ? with $
    (while (string-match "[?*]" name start)
      (aset name (match-beginning 0) ?$)
      (setq start (1+ (match-end 0))))
    name))

;;----------------------------------------------------------------------
;; Quoting process args
;;--------------------

(defun nt-quote-args-verbatim (args)
  "Copy ARG list verbatim, separating each arg with space."
  (mapconcat 'identity args " "))

(defun nt-quote-args-prefix-quote (prefix args)
  (mapconcat (lambda (str)
	       (concat "\""
		       (mapconcat (lambda (ch)
				    (concat (if (eq ch ?\") prefix)
					    (char-to-string ch)))
				  str nil)
		       "\""))
	       args " "))

(defun nt-quote-args-backslash-quote (args)
  "Place ARG list in quotes, prefixing quotes in args with backslashes."
  (nt-quote-args-prefix-quote "\\" args))

(defun nt-quote-args-double-quote (args)
  "Place ARG list in quotes, doubling quotes in args."
  (nt-quote-args-prefix-quote "\"" args))

(defvar nt-quote-args-functions-alist
  '(("^.?.?sh\\." . nt-quote-args-double-quote))
  "An alist for determining proper argument quoting given executable file name.
Car of each cons must be a string, a regexp against which a file name sans 
directory is matched.  Cdr is a function symbol.  The list is mathced in
forward order, and mathcing entry cdr's funcrion is called with a list of
strings, process arguments.  It must return a string which is passed to
the newly created process.

If not found, then `nt-quote-args-verbatim' is called on the argument list.")

(defun nt-quote-process-args (args)
  ;;Properly quote process ARGS for executing (car ARGS).
  (let ((fname (file-name-nondirectory (car args)))
	(alist nt-quote-args-functions-alist)
	(case-fold-search nil)
	(return-me nil)
	(assoc nil))
    (while (and alist
		(null return-me))
      (setq assoc (pop alist))
      (if (string-match (car assoc) fname)
	  (setq return-me (funcall (cdr assoc) (cdr args)))))
    (or return-me
	(nt-quote-args-verbatim (cdr args)))))

;;; winnt.el ends here
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