lisp/w32-fns.el

   1 ;;; winnt.el --- Lisp routines for Windows NT.
   2
   3 ;; Copyright (C) 1994 Free Software Foundation, Inc.
   4
   5 ;; Author: Geoff Voelker (voelker@cs.washington.edu)
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; GNU Emacs is free software; you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation; either version 2, or (at your option)
  12 ;; any later version.
  13
  14 ;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  22 ;; Boston, MA 02111-1307, USA.
  23
  24 ;;; Commentary:
  25
  26 ;; (August 12, 1993)
  27 ;; Created.
  28
  29 ;; (November 21, 1994)
  30 ;; [C-M-backspace] defined.
  31 ;; mode-line-format defined to show buffer file type.
  32 ;; audio bell initialized.
  33
  34 ;;; Code:
  35
  36 ;; Map delete and backspace
  37 (define-key function-key-map [backspace] "\177")
  38 (define-key function-key-map [delete] "\C-d")
  39 (define-key function-key-map [M-backspace] [?\M-\177])
  40 (define-key function-key-map [C-M-backspace] [\C-\M-delete])
  41
  42 ;; Show file type (text or binary) on modeline
  43 (setq-default mode-line-format
  44   (list (purecopy "")
  45    'mode-line-modified
  46    'mode-line-buffer-identification
  47    (purecopy "   ")
  48    'global-mode-string
  49    (purecopy "   %[(")
  50    (purecopy "%t:")
  51    'mode-name 'mode-line-process 'minor-mode-alist
  52    (purecopy "%n")
  53    (purecopy ")%]--")
  54    (purecopy '(line-number-mode "L%l--"))
  55    (purecopy '(column-number-mode "C%c--"))
  56    (purecopy '(-3 . "%p"))
  57    (purecopy "-%-")))
  58
  59 ;; Ignore case on file-name completion
  60 (setq completion-ignore-case t)
  61
  62 ;; The cmd.exe shell uses the "/c" switch instead of the "-c" switch
  63 ;; for executing its command line argument (from simple.el).
  64 (setq shell-command-switch "/c")
  65
  66 ;; Use ";" instead of ":" as a path separator (from files.el).
  67 (setq path-separator ";")
  68
  69 ;; Set the null device (for compile.el).
  70 (setq grep-null-device "NUL")
  71
  72 ;; Set the grep regexp to match entries with drive letters.
  73 (setq grep-regexp-alist
  74   '(("^\\(\\([a-zA-Z]:\\)?[^:( \t\n]+\\)[:( \t]+\\([0-9]+\\)[:) \t]" 1 3)))
  75
  76 ;; Taken from dos-fn.el ... don't want all that's in the file, maybe
  77 ;; separate it out someday.
  78
  79 (defvar file-name-buffer-file-type-alist
  80   '(
  81     ("[:/].*config.sys$" . nil)         ; config.sys text
  82     ("\\.elc$" . t)                     ; emacs stuff
  83     ("\\.\\(obj\\|exe\\|com\\|lib\\|sys\\|chk\\|out\\|bin\\|ico\\|pif\\)$" . t)
  84                                         ; MS-Dos stuff
  85     ("\\.\\(arc\\|zip\\|pak\\|lzh\\|zoo\\)$" . t)
  86                                         ; Packers
  87     ("\\.\\(a\\|o\\|tar\\|z\\|gz\\|taz\\)$" . t)
  88                                         ; Unix stuff
  89     ("\\.tp[ulpw]$" . t)
  90                                         ; Borland Pascal stuff
  91     ("[:/]tags$" . t)
  92                                         ; Emacs TAGS file
  93     )
  94   "*Alist for distinguishing text files from binary files.
  95 Each element has the form (REGEXP . TYPE), where REGEXP is matched
  96 against the file name, and TYPE is nil for text, t for binary.")
  97
  98 (defun find-buffer-file-type (filename)
  99   (let ((alist file-name-buffer-file-type-alist)
 100         (found nil)
 101         (code nil))
 102     (let ((case-fold-search t))
 103       (setq filename (file-name-sans-versions filename))
 104       (while (and (not found) alist)
 105         (if (string-match (car (car alist)) filename)
 106             (setq code (cdr (car alist))
 107                   found t))
 108         (setq alist (cdr alist))))
 109     (if found
 110         (cond((memq code '(nil t)) code)
 111              ((and (symbolp code) (fboundp code))
 112               (funcall code filename)))
 113       default-buffer-file-type)))
 114
 115 (defun find-file-binary (filename)
 116   "Visit file FILENAME and treat it as binary."
 117   (interactive "FFind file binary: ")
 118   (let ((file-name-buffer-file-type-alist '(("" . t))))
 119     (find-file filename)))
 120
 121 (defun find-file-text (filename)
 122   "Visit file FILENAME and treat it as a text file."
 123   (interactive "FFind file text: ")
 124   (let ((file-name-buffer-file-type-alist '(("" . nil))))
 125     (find-file filename)))
 126
 127 (defun find-file-not-found-set-buffer-file-type ()
 128   (save-excursion
 129     (set-buffer (current-buffer))
 130     (setq buffer-file-type (find-buffer-file-type (buffer-file-name))))
 131   nil)
 132
 133 ;;; To set the default file type on new files.
 134 (add-hook 'find-file-not-found-hooks 'find-file-not-found-set-buffer-file-type)
 135
 136 ;;; For using attached Unix filesystems.
 137 (defun save-to-unix-hook ()
 138   (save-excursion
 139     (setq buffer-file-type t))
 140   nil)
 141
 142 (defun revert-from-unix-hook ()
 143   (save-excursion
 144     (setq buffer-file-type (find-buffer-file-type (buffer-file-name))))
 145   nil)
 146
 147 ;; Really should provide this capability at the drive letter granularity.
 148 (defun using-unix-filesystems (flag)
 149   "Read and write all files assuming that they are on a drive attached
 150 to a remote Unix file system.  No CR/LF translation is done on any files
 151 in this case.  This behavior is activated when FLAG is t and deactived
 152 when FLAG is any other value."
 153   (if flag
 154       (progn
 155         (add-hook 'write-file-hooks 'save-to-unix-hook)
 156         (add-hook 'after-save-hook 'revert-from-unix-hook))
 157     (progn
 158       (remove-hook 'write-file-hooks 'save-to-unix-hook)
 159       (remove-hook 'after-save-hook 'revert-from-unix-hook))))
 160
 161 ;;; Avoid creating auto-save file names containing illegal characters
 162 ;;; (primarily "*", eg. for the *mail* buffer).
 163 (fset 'original-make-auto-save-file-name
 164       (symbol-function 'make-auto-save-file-name))
 165
 166 (defun make-auto-save-file-name ()
 167   "Return file name to use for auto-saves of current buffer.
 168 Does not consider `auto-save-visited-file-name' as that variable is checked
 169 before calling this function.  You can redefine this for customization.
 170 See also `auto-save-file-name-p'."
 171   (let ((name (original-make-auto-save-file-name))
 172         (start 0))
 173     ;; destructively replace occurences of * or ? with $
 174     (while (string-match "[?*]" name start)
 175       (aset name (match-beginning 0) ?$)
 176       (setq start (1+ (match-end 0))))
 177     name))
 178
 179 ;;; Fix interface to (X-specific) mouse.el
 180 (defalias 'x-set-selection 'ignore)
 181 (fset 'x-get-selection '(lambda (&rest rest) ""))
 182 (fmakunbound 'font-menu-add-default)
 183 (global-unset-key [C-down-mouse-1])
 184 (global-unset-key [C-down-mouse-2])
 185 (global-unset-key [C-down-mouse-3])
 186
 187 ;;; Set to a system sound if you want a fancy bell.
 188 (set-message-beep nil)
 189
 190 ;;; winnt.el ends here