X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/dfbcdf5f5b4981518a267d6ff52aff6714793282..cd30a521aa838f6bcf08ee6ffb62986cd2bf8daa:/lisp/dos-w32.el diff --git a/lisp/dos-w32.el b/lisp/dos-w32.el index b5f52bb171..351f5bf378 100644 --- a/lisp/dos-w32.el +++ b/lisp/dos-w32.el @@ -2,7 +2,7 @@ ;; Copyright (C) 1996 Free Software Foundation, Inc. -;; Maintainer: Geoff Voelker (voelker@cs.washington.edu) +;; Maintainer: Geoff Voelker ;; Keywords: internal ;; This file is part of GNU Emacs. @@ -29,16 +29,14 @@ ;;; Code: -;;; Add %t: into the mode line format just after the open-paren. -(let ((tail (member " %[(" mode-line-format))) - (setcdr tail (cons (purecopy "%t:") - (cdr tail)))) - ;; 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 grep-null-device "NUL") +(setq null-device "NUL") ;; Set the grep regexp to match entries with drive letters. (setq grep-regexp-alist @@ -49,15 +47,19 @@ '( ("[:/].*config.sys$" . nil) ; config.sys text ("\\.elc$" . t) ; emacs stuff - ("\\.\\(obj\\|exe\\|com\\|lib\\|sys\\|chk\\|out\\|bin\\|ico\\|pif\\)$" . t) + ("\\.\\(obj\\|exe\\|com\\|lib\\|sym\\|sys\\|chk\\|out\\|bin\\|ico\\|pif\\|class\\)$" . t) ; MS-Dos stuff + ("\\.\\(dll\\|drv\\|cpl\\|scr\\vbx\\|386\\|vxd\\|fon\\|fnt\\|fot\\|ttf\\|grp\\)$" . t) + ; Windows stuff + ("\\.\\(hlp\\|bmp\\|wav\\|avi\\|mpg\\|jpg\\|tif\\mov\\au\\)" . t) + ; known binary data files ("\\.\\(arc\\|zip\\|pak\\|lzh\\|zoo\\)$" . t) ; Packers - ("\\.\\(a\\|o\\|tar\\|z\\|gz\\|taz\\)$" . t) + ("\\.\\(a\\|o\\|tar\\|z\\|gz\\|taz\\|jar\\)$" . t) ; Unix stuff ("\\.tp[ulpw]$" . t) ; Borland Pascal stuff - ("[:/]tags$" . t) + ("[:/]tags$" . nil) ; Emacs TAGS file ) "*Alist for distinguishing text files from binary files. @@ -77,53 +79,86 @@ against the file name, and TYPE is nil for text, t for binary.") (setq alist (cdr alist))) found))) +;; Don't check for untranslated file systems here. (defun find-buffer-file-type (filename) - ;; First check if file is on an untranslated filesystem, then on the alist. - (if (untranslated-file-p filename) - t ; for binary - (let ((match (find-buffer-file-type-match filename)) - (code)) - (if (not match) - default-buffer-file-type - (setq code (cdr match)) - (cond ((memq code '(nil t)) code) - ((and (symbolp code) (fboundp code)) - (funcall code filename))))))) - -(defun find-buffer-file-type-coding-system (command args) + (let ((match (find-buffer-file-type-match filename)) + (code)) + (if (not match) + default-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) + +(defun find-buffer-file-type-coding-system (command) "Choose a coding system for a file operation. -If COMMAND is 'insert-file-contents', the coding system is chosen based -upon the filename, the contents of 'untranslated-filesystem-list' and -'file-name-buffer-file-type-alist', and whether the file exists: - - If it matches in 'untranslated-filesystem-list': 'no-conversion' - 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 text): 'emacs-mule-dos' +If COMMAND is `insert-file-contents', the coding system is chosen based +upon the filename, the contents of `untranslated-filesystem-list' and +`file-name-buffer-file-type-alist', and whether the file exists: + + If it matches in `untranslated-filesystem-list': + If the file exists: `no-conversion' + If the file does not exist: `undecided' + 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: 'undecided-dos' + If the file exists: `undecided' + If the file does not exist: `undecided-dos' + +If COMMAND 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'. +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." -If COMMAND is 'write-region', the coding system is chosen based -upon the value of 'buffer-file-type': If t, the coding system is -'no-conversion', otherwise it is 'emacs-mule-dos'." (let ((op (nth 0 command)) (target) (binary nil) (text nil) - (undecided nil)) + (undecided nil) (undecided-unix nil)) (cond ((eq op 'insert-file-contents) (setq target (nth 1 command)) + ;; First check for a file name that indicates + ;; it is truly binary. (setq binary (find-buffer-file-type target)) - (unless binary - (if (find-buffer-file-type-match target) - (setq text t) - (setq undecided (file-exists-p target))))) - ((eq op 'write-region) - (setq binary buffer-file-type))) - (cond (binary '(no-conversion . no-conversion)) - (text '(emacs-mule-dos . emacs-mule-dos)) - (undecided '(undecided . undecided)) - (t '(undecided-dos . undecided-dos))))) + (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. + ((file-exists-p target) + (setq undecided t)) + ;; Next check for a non-DOS file system. + ((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)) + (undecided '(undecided . undecided)) + (t '(undecided-dos . undecided-dos)))) + ((eq op 'write-region) + (if buffer-file-coding-system + (cons buffer-file-coding-system + 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) @@ -139,15 +174,18 @@ upon the value of 'buffer-file-type': If t, the coding system is (let ((file-name-buffer-file-type-alist '(("" . nil)))) (find-file filename))) -(defun find-file-not-found-set-buffer-file-type () +(defun find-file-not-found-set-buffer-file-coding-system () (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) + (let* ((dummy-insert-op (list 'insert-file-contents (buffer-file-name))) + (coding-system-pair + (find-buffer-file-type-coding-system dummy-insert-op))) + (setq buffer-file-coding-system (car coding-system-pair)) + (setq buffer-file-type (eq buffer-file-coding-system 'no-conversion))))) +;;; To set the default coding system on new files. +(add-hook 'find-file-not-found-hooks + 'find-file-not-found-set-buffer-file-coding-system) ;;; To accomodate filesystems that do not require CR/LF translation. (defvar untranslated-filesystem-list nil @@ -209,24 +247,66 @@ filesystem mounted on drive Z:, FILESYSTEM could be \"Z:\"." (delete (untranslated-canonical-name filesystem) untranslated-filesystem-list))) -;; Process I/O decoding and encoding. - -(defun find-binary-process-coding-system (op args) - "Choose a coding system for process I/O. -The coding system for decode is 'no-conversion' if 'binary-process-output' -is non-nil, and 'emacs-mule-dos' otherwise. Similarly, the coding system -for encode is 'no-conversion' if 'binary-process-input' is non-nil, -and 'emacs-mule-dos' otherwise." - (let ((decode 'emacs-mule-dos) - (encode 'emacs-mule-dos)) - (if binary-process-output - (setq decode 'no-conversion)) - (if binary-process-input - (setq encode 'no-conversion)) - (cons decode encode))) - -(modify-coding-system-alist 'process "" 'find-binary-process-coding-system) - +(setq-default default-process-coding-system + (if (fboundp 'start-process) + '(raw-text-dos . raw-text-dos) + '(undecided-dos . undecided-dos))) + +;; Support for printing under DOS/Windows, see lpr.el and ps-print.el. +(defvar printer-name) + +(defun 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' \(which see\). Ignores any arguments beyond +START and END." + + ;; DOS printers need the lines to end with CR-LF pairs, so make + ;; sure it always happens that way, unless the buffer is binary. + (let* ((coding coding-system-for-write) + (coding-base + (if (null coding) 'undecided (coding-system-base coding))) + (eol-type (coding-system-eol-type coding-base))) + (or (eq coding-system-for-write 'no-conversion) + (setq coding-system-for-write + (aref eol-type 1))) ; force conversion to DOS EOLs + (write-region start end + (or (and (boundp 'dos-printer) dos-printer) + printer-name) + 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 + (or (and (boundp 'dos-printer) dos-printer) + printer-name) + 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 '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' +;; 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 ps-printer-name) + +(setq ps-lpr-command "gs") + +(setq ps-lpr-switches '("-q" "-dNOPAUSE" "-sDEVICE=epson" "-r240x60" + "-sOutputFile=LPT1" "-")) (provide 'dos-w32)