;; dos-w32.el --- Functions shared among MS-DOS and W32 (NT/95) platforms
-;; Copyright (C) 1996, 2001-2012 Free Software Foundation, Inc.
+;; Copyright (C) 1996, 2001-2016 Free Software Foundation, Inc.
;; Maintainer: Geoff Voelker <voelker@cs.washington.edu>
;; Keywords: internal
;;; Code:
;; Use ";" instead of ":" as a path separator (from files.el).
-(setq path-separator ";")
-
-(setq minibuffer-history-case-insensitive-variables
- (cons 'file-name-history minibuffer-history-case-insensitive-variables))
-
-;; Set the null device (for compile.el).
-(setq null-device "NUL")
-
-;; For distinguishing file types based upon suffixes.
+(when (memq system-type '(ms-dos windows-nt))
+ (setq path-separator ";")
+ (push 'file-name-history minibuffer-history-case-insensitive-variables)
+ ;; Set the null device (for compile.el).
+ (setq null-device "NUL")
+ (setq-default buffer-file-coding-system 'undecided-dos))
+
+;; For distinguishing file types based upon suffixes. DEPRECATED, DO NOT USE!
(defcustom file-name-buffer-file-type-alist
'(("[:/].*config.sys$" . nil) ; config.sys text
("\\.\\(obj\\|exe\\|com\\|lib\\|sys\\|bin\\|ico\\|pif\\|class\\)$" . t)
("\\.tp[ulpw]$" . t) ; borland Pascal stuff
("[:/]tags$" . nil) ; emacs TAGS file
)
- "Alist for distinguishing text files from binary files.
+ "Alist used in the past for distinguishing text files from binary files.
Each element has the form (REGEXP . TYPE), where REGEXP is matched
-against the file name, and TYPE is nil for text, t for binary."
+against the file name, and TYPE is nil for text, t for binary.
+
+This variable is deprecated, not used anywhere, and will soon be deleted."
:type '(repeat (cons regexp boolean))
:group 'dos-fns
:group 'w32)
-;; Return the pair matching filename on file-name-buffer-file-type-alist,
-;; or nil otherwise.
-(defun find-buffer-file-type-match (filename)
- (let ((alist file-name-buffer-file-type-alist)
- (found 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 found (car alist)))
- (setq alist (cdr alist)))
- found)))
-
-;; Don't check for untranslated file systems here.
-(defun find-buffer-file-type (filename)
- (let ((match (find-buffer-file-type-match filename))
- (code))
- (if (not match)
- (default-value 'buffer-file-type)
- (setq code (cdr match))
- (cond ((memq code '(nil t)) code)
- ((and (symbolp code) (fboundp code))
- (funcall code filename))))))
-
-(setq-default buffer-file-coding-system 'undecided-dos)
+(make-obsolete-variable 'file-name-buffer-file-type-alist
+ 'file-coding-system-alist
+ "24.4")
(defun find-buffer-file-type-coding-system (command)
"Choose a coding system for a file operation in COMMAND.
CAR, and the arguments that might be given to that operation as its CDR.
If operation is `insert-file-contents', the coding system is chosen based
upon the filename (the CAR of the arguments beyond the operation), the contents
-of `untranslated-filesystem-list' and `file-name-buffer-file-type-alist',
+of `w32-untranslated-filesystem-list' and `file-name-buffer-file-type-alist',
and whether the file exists:
- If it matches in `untranslated-filesystem-list':
+ If it matches in `w32-untranslated-filesystem-list':
If the file exists: `undecided'
If the file does not exist: `undecided-unix'
- If it matches in `file-name-buffer-file-type-alist':
- If the match is t (for binary): `no-conversion'
- If the match is nil (for dos-text): `undecided-dos'
Otherwise:
If the file exists: `undecided'
If the file does not exist default value of `buffer-file-coding-system'
Note that the CAR of arguments to `insert-file-contents' operation could
-be a cons cell of the form \(FILENAME . BUFFER\), where BUFFER is a buffer
+be a cons cell of the form (FILENAME . BUFFER), where BUFFER is a buffer
into which the file's contents were already read, but not yet decoded.
-If operation is `write-region', the coding system is chosen based upon
-the value of `buffer-file-coding-system' and `buffer-file-type'. If
-`buffer-file-coding-system' is non-nil, its value is used. If it is
-nil and `buffer-file-type' is t, the coding system is `no-conversion'.
+If operation is `write-region', the coding system is chosen based
+upon the value of `buffer-file-coding-system'. If
+`buffer-file-coding-system' is non-nil, its value is used.
Otherwise, it is `undecided-dos'.
-The two most common situations are when DOS and Unix files are read
-and written, and their names do not match in
-`untranslated-filesystem-list' and `file-name-buffer-file-type-alist'.
-In these cases, the coding system initially will be `undecided'. As
-the file is read in the DOS case, the coding system will be changed to
-`undecided-dos' as CR/LFs are detected. As the file is read in the
-Unix case, the coding system will be changed to `undecided-unix' as
-LFs are detected. In both cases, `buffer-file-coding-system' will be
-set to the appropriate coding system, and the value of
-`buffer-file-coding-system' will be used when writing the file."
+The most common situation is when DOS and Unix files are read and
+written, and their names do not match in `w32-untranslated-filesystem-list'.
+In these cases, the coding system initially will be `undecided'.
+As the file is read in the DOS case, the coding system will be
+changed to `undecided-dos' as CR/LFs are detected. As the file
+is read in the Unix case, the coding system will be changed to
+`undecided-unix' as LFs are detected. In both cases,
+`buffer-file-coding-system' will be set to the appropriate coding
+system, and the value of `buffer-file-coding-system' will be used
+when writing the file."
(let ((op (nth 0 command))
- (binary nil) (text nil)
(undecided nil) (undecided-unix nil)
target target-buf)
(cond ((eq op 'insert-file-contents)
(and (bufferp (cdr target))
(buffer-name (cdr target))))
(setq target (car target)))
- ;; First check for a file name that indicates
- ;; it is truly binary.
- (setq binary (find-buffer-file-type target))
- (cond (binary)
- ;; Next check for files that MUST use DOS eol conversion.
- ((find-buffer-file-type-match target)
- (setq text t))
- ;; For any other existing file, decide based on contents.
- ((or
+ (cond ((or
+ ;; For any existing file, decide based on contents.
(file-exists-p target)
;; If TARGET does not exist as a file, replace its
;; base name with TARGET-BUF and try again. This
(file-name-directory target)))))
(setq undecided t))
;; Next check for a non-DOS file system.
- ((untranslated-file-p target)
+ ((w32-untranslated-file-p target)
(setq undecided-unix t)))
- (cond (binary '(no-conversion . no-conversion))
- (text '(undecided-dos . undecided-dos))
- (undecided-unix '(undecided-unix . undecided-unix))
+ (cond (undecided-unix '(undecided-unix . undecided-unix))
(undecided '(undecided . undecided))
(t (cons (default-value 'buffer-file-coding-system)
(default-value 'buffer-file-coding-system)))))
;; Normally this is used only in a non-file-visiting
;; buffer, because normally buffer-file-coding-system is non-nil
;; in a file-visiting buffer.
- (if buffer-file-type
- '(no-conversion . no-conversion)
- '(undecided-dos . undecided-dos)))))))
-
-(modify-coding-system-alist 'file "" 'find-buffer-file-type-coding-system)
+ '(undecided-dos . undecided-dos))))))
+(make-obsolete 'find-buffer-file-type-coding-system nil "24.4")
(defun find-file-binary (filename)
"Visit file FILENAME and treat it as binary."
+ ;; FIXME: Why here rather than in files.el?
+ ;; FIXME: Can't we use find-file-literally for the same purposes?
(interactive "FFind file binary: ")
- (let ((file-name-buffer-file-type-alist '(("" . t))))
+ (let ((coding-system-for-read 'no-conversion)) ;; FIXME: undecided-unix?
(find-file filename)))
(defun find-file-text (filename)
"Visit file FILENAME and treat it as a text file."
(interactive "FFind file text: ")
- (let ((file-name-buffer-file-type-alist '(("" . nil))))
+ (let ((coding-system-for-read 'undecided-dos))
(find-file filename)))
-(defun find-file-not-found-set-buffer-file-coding-system ()
+(defun w32-find-file-not-found-set-buffer-file-coding-system ()
(with-current-buffer (current-buffer)
(let ((coding buffer-file-coding-system))
;; buffer-file-coding-system is already set by
;; the EOL conversion, if required by the user.
(when (and (null coding-system-for-read)
(or inhibit-eol-conversion
- (untranslated-file-p (buffer-file-name))))
+ (w32-untranslated-file-p (buffer-file-name))))
(setq coding (coding-system-change-eol-conversion coding 0))
(setq buffer-file-coding-system coding))
- (setq buffer-file-type (eq buffer-file-coding-system 'no-conversion)))))
+ nil)))
-;;; To set the default coding system on new files.
+;; To set the default coding system on new files.
(add-hook 'find-file-not-found-functions
- 'find-file-not-found-set-buffer-file-coding-system)
+ 'w32-find-file-not-found-set-buffer-file-coding-system)
;;; To accommodate filesystems that do not require CR/LF translation.
-(defvar untranslated-filesystem-list nil
+(define-obsolete-variable-alias 'untranslated-filesystem-list
+ 'w32-untranslated-filesystem-list "24.4")
+(defvar w32-untranslated-filesystem-list nil
"List of filesystems that require no CR/LF translation when reading
and writing files. Each filesystem in the list is a string naming
the directory prefix corresponding to the filesystem.")
-(defun untranslated-canonical-name (filename)
+(defun w32-untranslated-canonical-name (filename)
"Return FILENAME in a canonicalized form for use with the functions
dealing with untranslated filesystems."
(if (memq system-type '(ms-dos windows-nt cygwin))
;; The canonical form for DOS/W32 is with A-Z downcased and all
;; directory separators changed to directory-sep-char.
- (let ((name nil))
- (setq name (mapconcat
- (lambda (char)
- (if (and (<= ?A char) (<= char ?Z))
- (char-to-string (+ (- char ?A) ?a))
- (char-to-string char)))
- filename nil))
+ (let ((name
+ (mapconcat (lambda (char)
+ (char-to-string (if (and (<= ?A char ?Z))
+ (+ (- char ?A) ?a)
+ char)))
+ filename nil)))
;; Use expand-file-name to canonicalize directory separators, except
;; with bare drive letters (which would have the cwd appended).
;; Avoid expanding names that could trigger ange-ftp to prompt
;; for passwords, though.
- (if (or (string-match "^.:$" name)
- (string-match "^/[^/:]+:" name))
+ (if (or (string-match-p "^.:\\'" name)
+ (string-match-p "^/[^/:]+:" name))
name
(expand-file-name name)))
filename))
-(defun untranslated-file-p (filename)
+(defun w32-untranslated-file-p (filename)
"Return t if FILENAME is on a filesystem that does not require
CR/LF translation, and nil otherwise."
- (let ((fs (untranslated-canonical-name filename))
- (ufs-list untranslated-filesystem-list)
+ (let ((fs (w32-untranslated-canonical-name filename))
+ (ufs-list w32-untranslated-filesystem-list)
(found nil))
(while (and (not found) ufs-list)
- (if (string-match (concat "^" (car ufs-list)) fs)
+ (if (string-match-p (concat "^" (car ufs-list)) fs)
(setq found t)
(setq ufs-list (cdr ufs-list))))
found))
-(defun add-untranslated-filesystem (filesystem)
+(define-obsolete-function-alias 'add-untranslated-filesystem
+ 'w32-add-untranslated-filesystem "24.4")
+(defun w32-add-untranslated-filesystem (filesystem)
"Add FILESYSTEM to the list of filesystems that do not require
CR/LF translation. FILESYSTEM is a string containing the directory
prefix corresponding to the filesystem. For example, for a Unix
;; with a directory, but RET returns the current buffer's file, not
;; its directory.
(interactive "DUntranslated file system: ")
- (let ((fs (untranslated-canonical-name filesystem)))
- (if (member fs untranslated-filesystem-list)
- untranslated-filesystem-list
- (setq untranslated-filesystem-list
- (cons fs untranslated-filesystem-list)))))
+ (let ((fs (w32-untranslated-canonical-name filesystem)))
+ (if (member fs w32-untranslated-filesystem-list)
+ w32-untranslated-filesystem-list
+ (push fs w32-untranslated-filesystem-list))))
-(defun remove-untranslated-filesystem (filesystem)
+
+(define-obsolete-function-alias 'remove-untranslated-filesystem
+ 'w32-remove-untranslated-filesystem "24.4")
+(defun w32-remove-untranslated-filesystem (filesystem)
"Remove FILESYSTEM from the list of filesystems that do not require
CR/LF translation. FILESYSTEM is a string containing the directory
prefix corresponding to the filesystem. For example, for a Unix
filesystem mounted on drive Z:, FILESYSTEM could be \"Z:\"."
(interactive "fUntranslated file system: ")
- (setq untranslated-filesystem-list
- (delete (untranslated-canonical-name filesystem)
- untranslated-filesystem-list)))
+ (setq w32-untranslated-filesystem-list
+ (delete (w32-untranslated-canonical-name filesystem)
+ w32-untranslated-filesystem-list)))
;;; Support for printing under DOS/Windows, see lpr.el and ps-print.el.
-(defcustom direct-print-region-use-command-dot-com t
+(define-obsolete-variable-alias 'direct-print-region-use-command-dot-com
+ 'w32-direct-print-region-use-command-dot-com "24.4")
+(defcustom w32-direct-print-region-use-command-dot-com t
"If non-nil, use command.com to print on Windows 9x."
:type 'boolean
:group 'dos-fns
;; Function to actually send data to the printer port.
;; Supports writing directly, and using various programs.
-(defun direct-print-region-helper (printer
- start end
- lpr-prog
- _delete-text _buf _display
- rest)
+(defun w32-direct-print-region-helper (printer
+ start end
+ lpr-prog
+ _delete-text _buf _display
+ rest)
(let* (;; Ignore case when matching known external program names.
(case-fold-search t)
;; Convert / to \ in printer name, for sake of external programs.
;; asking command.com to copy the file.
;; No action is needed for UNC printer names, which is just as well
;; because `expand-file-name' doesn't support UNC names on MS-DOS.
- (if (and (stringp printer) (not (string-match "^\\\\" printer)))
+ (if (and (stringp printer) (not (string-match-p "^\\\\" printer)))
(setq printer
(subst-char-in-string ?/ ?\\ (expand-file-name printer safe-dir))))
;; Handle known programs specially where necessary.
(unwind-protect
(cond
;; nprint.exe is the standard print command on Netware
- ((string-match "^nprint\\(\\.exe\\)?$" (file-name-nondirectory lpr-prog))
+ ((string-match-p "\\`nprint\\(\\.exe\\)?\\'"
+ (file-name-nondirectory lpr-prog))
(write-region start end tempfile nil 0)
(call-process lpr-prog nil errbuf nil
tempfile (concat "P=" printer)))
;; print.exe is a standard command on NT
- ((string-match "^print\\(\\.exe\\)?$" (file-name-nondirectory lpr-prog))
+ ((string-match-p "\\`print\\(\\.exe\\)?\\'"
+ (file-name-nondirectory lpr-prog))
;; Be careful not to invoke print.exe on MS-DOS or Windows 9x
;; though, because it is a TSR program there (hangs Emacs).
(or (and (eq system-type 'windows-nt)
((and (eq system-type 'windows-nt)
(getenv "winbootdir")
;; Allow cop-out so command.com isn't invoked
- direct-print-region-use-command-dot-com
+ w32-direct-print-region-use-command-dot-com
;; file-attributes fails on LPT ports on Windows 9x but
;; not on NT, so handle both cases for safety.
(eq (or (nth 7 (file-attributes printer)) 0) 0))
(declare-function default-printer-name "w32fns.c")
-(defun direct-print-region-function (start end
- &optional lpr-prog
- delete-text buf display
- &rest rest)
+(define-obsolete-function-alias 'direct-print-region-function
+ 'w32-direct-print-region-function "24.4")
+(defun w32-direct-print-region-function (start end
+ &optional lpr-prog
+ delete-text buf display
+ &rest rest)
"DOS/Windows-specific function to print the region on a printer.
Writes the region to the device or file which is a value of
-`printer-name' \(which see\), unless the value of `lpr-command'
+`printer-name' (which see), unless the value of `lpr-command'
indicates a specific program should be invoked."
;; DOS printers need the lines to end with CR-LF pairs, so make
(write-region-annotate-functions
(cons
(lambda (_start end)
- (if (not (char-equal (char-before end) ?\C-l))
+ (if (not (char-equal (char-before end) ?\f))
`((,end . "\f"))))
write-region-annotate-functions))
(printer (or (and (boundp 'dos-printer)
(or (eq coding-system-for-write 'no-conversion)
(setq coding-system-for-write
(aref eol-type 1))) ; force conversion to DOS EOLs
- (direct-print-region-helper printer start end lpr-prog
- delete-text buf display rest)))
+ (w32-direct-print-region-helper printer start end lpr-prog
+ delete-text buf display rest)))
-(defvar print-region-function)
(defvar lpr-headers-switches)
-(setq print-region-function 'direct-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'
;; 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)")
+(when (memq system-type '(ms-dos windows-nt))
+ (setq lpr-headers-switches "(page headers are not supported)"))
(defvar ps-printer-name)
-(defun direct-ps-print-region-function (start end
- &optional lpr-prog
- delete-text buf display
- &rest rest)
+(define-obsolete-function-alias 'direct-ps-print-region-function
+ 'w32-direct-ps-print-region-function "24.4")
+(defun w32-direct-ps-print-region-function (start end
+ &optional lpr-prog
+ delete-text buf display
+ &rest rest)
"DOS/Windows-specific function to print the region on a PostScript printer.
Writes the region to the device or file which is a value of
-`ps-printer-name' \(which see\), unless the value of `ps-lpr-command'
+`ps-printer-name' (which see), unless the value of `ps-lpr-command'
indicates a specific program should be invoked."
(let ((printer (or (and (boundp 'dos-ps-printer)
(symbol-value 'dos-ps-printer))
ps-printer-name
(default-printer-name))))
- (direct-print-region-helper printer start end lpr-prog
- delete-text buf display rest)))
-
-(defvar ps-print-region-function)
-(setq ps-print-region-function 'direct-ps-print-region-function)
+ (w32-direct-print-region-helper printer start end lpr-prog
+ delete-text buf display rest)))
;(setq ps-lpr-command "gs")