;;; dos-fns.el --- MS-Dos specific functions.
-;; Copyright (C) 1985, 1986, 1992 Free Software Foundation, Inc.
+;; Copyright (C) 1991, 1993, 1995, 1996 Free Software Foundation, Inc.
;; Maintainer: Morten Welinder (terra@diku.dk)
;; Keywords: internal
;; 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., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
;;; Commentary:
;;; Code:
-(setq-default mode-line-format
- (list (purecopy "")
- 'mode-line-modified
- 'mode-line-buffer-identification
- (purecopy " ")
- 'global-mode-string
- (purecopy " %[(")
- (purecopy "%t:")
- 'mode-name 'minor-mode-alist "%n" 'mode-line-process
- (purecopy ")%]--")
- (purecopy '(line-number-mode "L%l--"))
- (purecopy '(-3 . "%p"))
- (purecopy "-%-")))
-
-;;
-;; buffer-file-type (0 "text") (1 "binary")
-;;
-(defvar file-name-buffer-file-type-alist
- '(
- ("[:/].*config.sys$" . 0) ; config.sys text
- ("\\.elc$" . 1) ; emacs stuff
- ("\\.\\(obj\\|exe\\|com\\|lib\\|sys\\|chk\\|out\\|bin\\|ico\\|pif\\)$" . 1)
- ; MS-Dos stuff
- ("\\.\\(arc\\|zip\\|pak\\|lzh\\|zoo\\)$" . 1)
- ; Packers
- ("\\.\\(a\\|o\\|tar\\|z\\|gz\\|taz\\)$" . 1)
- ; Unix stuff
- ("\\.tp[ulpw]$" . 1)
- ; Borland Pascal stuff
- ("[:/]tags$" . 1 )
- ; Emacs TAGS file
- ))
-
-(defun find-buffer-file-type (filename)
- (let ((alist file-name-buffer-file-type-alist)
- (found nil)
- (code nil))
- (let ((case-fold-search t))
- (setq filename (file-name-sans-versions filename))
- (while (and (not found) alist)
- (if (string-match (car (car alist)) filename)
- (setq code (cdr (car alist))
- found t))
- (setq alist (cdr alist))))
- (if code
- (cond((numberp code) code)
- ((and (symbolp code) (fboundp code))
- (funcall code filename)))
- default-buffer-file-type)))
-
-(defun find-file-binary (filename)
- "Like find-file but always load the file as binary."
- (interactive "FFind file binary: ")
- (let ((file-name-buffer-file-type-alist '(("" . 1))))
- (find-file filename)))
-
-(defun find-file-text (filename)
- "Like find-file but always load the file as text."
- (interactive "FFind file text: ")
- (let ((file-name-buffer-file-type-alist '(("" . 0))))
- (find-file filename)))
-
-(defun find-file-not-found-set-buffer-file-type ()
- (save-excursion
- (set-buffer (current-buffer))
- (setq buffer-file-type (find-buffer-file-type (buffer-file-name))))
- nil)
-
-;;; To set the default file type on new files.
-(add-hook 'find-file-not-found-hooks 'find-file-not-found-set-buffer-file-type)
-
-;;; We use the Emacs directory, not /usr/local
-(setq Info-default-directory-list (list "c:/emacs/info"))
+;; This overrides a trivial definition in files.el.
+(defun convert-standard-filename (filename)
+ "Convert a standard file's name to something suitable for the current OS.
+This function's standard definition is trivial; it just returns the argument.
+However, on some systems, the function is redefined
+with a definition that really does change some file names."
+ (if (or (msdos-long-file-names)
+ (not (stringp filename))
+ (member (file-name-nondirectory filename) '("" "." "..")))
+ filename
+ (let* ((dir (file-name-directory filename))
+ (string (copy-sequence (file-name-nondirectory filename)))
+ (lastchar (aref string (1- (length string))))
+ i firstdot)
+ ;; Change a leading period to a leading underscore.
+ (if (= (aref string 0) ?.)
+ (aset string 0 ?_))
+ ;; Get rid of invalid characters.
+ (while (setq i (string-match
+ "[^-a-zA-Z0-9_.%~^$!#&{}@`'()\200-\376]"
+ string))
+ (aset string i ?_))
+ ;; If we don't have a period,
+ ;; and we have a dash or underscore that isn't the first char,
+ ;; change that to a period.
+ (if (and (not (string-match "\\." string))
+ (setq i (string-match "[-_]" string 1)))
+ (aset string i ?\.))
+ ;; If we don't have a period in the first 8 chars, insert one.
+ (if (> (or (string-match "\\." string)
+ (length string))
+ 8)
+ (setq string
+ (concat (substring string 0 8)
+ "."
+ (substring string 8))))
+ (setq firstdot (or (string-match "\\." string) (1- (length string))))
+ ;; Truncate to 3 chars after the first period.
+ (if (> (length string) (+ firstdot 4))
+ (setq string (substring string 0 (+ firstdot 4))))
+ ;; Change all periods except the first one into underscores.
+ (while (string-match "\\." string (1+ firstdot))
+ (setq i (string-match "\\." string (1+ firstdot)))
+ (aset string i ?_))
+ ;; If the last character of the original filename was `~',
+ ;; make sure the munged name ends with it also.
+ (if (equal lastchar ?~)
+ (aset string (1- (length string)) lastchar))
+ (concat dir string))))
(defvar msdos-shells '("command.com" "4dos.com" "ndos.com")
"*List of shells that use `/c' instead of `-c' and a backslashed command.")
-(defconst register-name-by-word-alist
+(defvar register-name-alist
'((ax . 0) (bx . 1) (cx . 2) (dx . 3) (si . 4) (di . 5)
- (cflag . 6) (flags . 7)))
-
-(defconst register-name-by-byte-alist
- '((al . (0 . 0)) (ah . (0 . 1))
- (bl . (1 . 0)) (bh . (1 . 1))
- (cl . (2 . 0)) (ch . (2 . 1))
- (dl . (3 . 0)) (dh . (3 . 1))))
+ (cflag . 6) (flags . 7)
+ (al . (0 . 0)) (bl . (1 . 0)) (cl . (2 . 0)) (dl . (3 . 0))
+ (ah . (0 . 1)) (bh . (1 . 1)) (ch . (2 . 1)) (dh . (3 . 1))))
(defun make-register ()
(make-vector 8 0))
(defun register-value (regs name)
- (let ((where (or (cdr (assoc name register-name-by-word-alist))
- (cdr (assoc name register-name-by-byte-alist)))))
+ (let ((where (cdr (assoc name register-name-alist))))
(cond ((consp where)
(let ((tem (aref regs (car where))))
(if (zerop (cdr where))
(defun set-register-value (regs name value)
(and (numberp value)
- (> value 0)
- (let ((where (or (cdr (assoc name register-name-by-word-alist))
- (cdr (assoc name register-name-by-byte-alist)))))
+ (>= value 0)
+ (let ((where (cdr (assoc name register-name-alist))))
(cond ((consp where)
- (setq value (% value 256)) ; 0x100
- (let* ((tem (aref regs (car where)))
- (l (% tem 256))
- (h (/ tem 256)))
- (if (zerop (cdr where))
- (aset regs (car where) (+ (* h 256) value))
- (aset regs (car where) (+ (* value 256) h)))))
+ (let ((tem (aref regs (car where)))
+ (value (logand value 255)))
+ (aset regs
+ (car where)
+ (if (zerop (cdr where))
+ (logior (logand tem 65280) value)
+ (logior (logand tem 255) (lsh value 8))))))
((numberp where)
- (setq value (% value 65536)) ; 0x10000
- (aset regs where value)))))
+ (aset regs where (logand value 65535))))))
regs)
(defsubst intdos (regs)
(int86 33 regs))
-;;; Fix interface to (X-specific) mouse.el
-(defalias 'window-frame 'ignore)
-(defalias 'x-set-selection 'ignore)
-(fset 'x-get-selection '(lambda (&rest rest) ""))
-(fset 'frame-parameters 'ignore)
-(fmakunbound 'font-menu-add-default)
-(global-unset-key [C-down-mouse-1])
-(global-unset-key [C-down-mouse-2])
-(global-unset-key [C-down-mouse-3])
+;; Support for printing under MS-DOS, see lpr.el and ps-print.el.
+(defvar dos-printer "PRN"
+ "*The name of a local MS-DOS device to which data is sent for printing.
+\(Note that PostScript files are sent to `dos-ps-printer', which see.\)
+
+Typical non-default settings would be \"LPT1\" to \"LPT3\" for
+parallel printers, or \"COM1\" to \"COM4\" or \"AUX\" for serial
+printers. You can also set it to a name of a file, in which
+case the output gets appended to that file.
+If you want to discard the printed output, set this to \"NUL\".")
+
+(defun dos-print-region-function (start end
+ &optional lpr-prog
+ delete-text buf display rest)
+ "MS-DOS-specific function to print the region on a printer.
+Writes the region to the device or file which is a value of
+`dos-printer' \(which see\). Ignores any arguments beyond
+START and END."
+
+ (write-region start end dos-printer t 0)
+ ;; Make each print-out start on a new page, but don't waste
+ ;; paper if there was a form-feed at the end of this file.
+ (if (not (char-equal (char-after (1- end)) ?\C-l))
+ (write-region "\f" nil dos-printer t 0)))
+
+;; Set this to nil if you have a port of the `lpr' program and
+;; you want to use it for printing. If the default setting is
+;; in effect, `lpr-command' and its switches are ignored when
+;; printing with `lpr-xxx' and `print-xxx'.
+(setq print-region-function 'dos-print-region-function)
+
+;; Set this to nil if you have a port of the `pr' program
+;; (e.g., from GNU Textutils), or if you have an `lpr'
+;; program (see above) that can print page headers.
+;; If `lpr-headers-switches' is non-nil (the default) and
+;; `print-region-function' is set to `dos-print-region-function',
+;; then requests to print page headers will be silently
+;; ignored, and `print-buffer' and `print-region' produce
+;; the same output as `lpr-buffer' and `lpr-region', accordingly.
+(setq lpr-headers-switches "(page headers are not supported)")
+
+(defvar dos-ps-printer "PRN"
+ "*Method for printing PostScript files under MS-DOS.
+
+If the value is a string, then it is taken as the name of the
+device to which PostScript files are written. By default it
+is the default printer device; typical non-default settings
+would be \"LPT1\" to \"LPT3\" for parallel printers, or \"COM1\"
+to \"COM4\" or \"AUX\" for serial printers. You can also set it
+to a name of a file, in which case the output gets appended
+to that file. \(Note that `ps-print' package already has
+facilities for printing to a file, so you might as well use
+them instead of changing the setting of this variable.\) If
+you want to silently discard the printed output, set this to \"NUL\".
+
+If the value is anything but a string, PostScript files will be
+piped to the program given by `ps-lpr-command', with switches
+given by `ps-lpr-switches', which see.")
+
+(setq ps-lpr-command "gs")
+
+(setq ps-lpr-switches '("-q" "-dNOPAUSE" "-sDEVICE=epson" "-r240x60"
+ "-sOutputFile=LPT1" "-"))
+
+;; Backward compatibility for obsolescent functions which
+;; set screen size.
+
+(defun mode25 ()
+ "Changes the number of screen rows to 25."
+ (interactive)
+ (set-frame-size (selected-frame) 80 25))
+
+(defun mode4350 ()
+ "Changes the number of rows to 43 or 50.
+Emacs always tries to set the screen height to 50 rows first.
+If this fails, it will try to set it to 43 rows, on the assumption
+that your video hardware might not support 50-line mode."
+ (interactive)
+ (set-frame-size (selected-frame) 80 50)
+ (if (eq (frame-height (selected-frame)) 50)
+ nil ; the original built-in function returned nil
+ (set-frame-size (selected-frame) 80 43)))
+
+(provide 'dos-fns)
+
+; dos-fns.el ends here