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- ;;;
- ;;; $Id: tm-tar.el,v 1.22 1995/10/21 15:34:33 H.Ueno Exp $
- ;;;
- ;;; tm-tar.el
- ;;;
- ;;; Internal viewer for
- ;;; - application/x-tar
- ;;; - application/x-gzip, type="tar"
- ;;; - aplication/octet-stream, type="tar"
- ;;; - aplication/octet-stream, type="tar+gzip"
- ;;;
- ;;; by Hiroshi Ueno <zodiac@ibm.net>
- ;;; modified by Tomohiko Morioka <morioka@jaist.ac.jp>
- ;;;
-
- ;;; @ required modules
- ;;;
-
- (require 'emu)
- (require 'tm-view)
-
- ;;; @ constants
- ;;;
-
- (defconst tm-tar/list-buffer "*tm-tar/List*")
- (defconst tm-tar/view-buffer "*tm-tar/View*")
- (defconst tm-tar/file-search-regexp "[0-9]+\:[0-9\:]+[ ]+[0-9]+[ ]+")
- (defconst tm-tar/popup-menu-title "Action Menu")
-
- ;;; @ variables
- ;;;
-
- (defvar tm-tar/tar-program "gtar")
- (defvar tm-tar/tar-decompress-arg '("-z"))
- (defvar tm-tar/gzip-program "gzip")
- (defvar tm-tar/mmencode-program "mmencode")
- (defvar tm-tar/uudecode-program "uudecode")
-
- (defvar tm-tar/popup-menu-items
- '(("View File" . tm-tar/view-file)
- ("Key Help" . tm-tar/helpful-message)
- ("Quit tm-tar Mode" . exit-recursive-edit)
- ))
-
- (cond ((string-match "XEmacs\\|Lucid" emacs-version)
- (defvar tm-tar/popup-menu
- (cons tm-tar/popup-menu-title
- (mapcar (function
- (lambda (item)
- (vector (car item)(cdr item) t)
- ))
- tm-tar/popup-menu-items)))
-
- (defun tm-tar/mouse-button-2 (event)
- (popup-menu tm-tar/popup-menu)
- )
- )
- ((>= emacs-major-version 19)
- (defun tm-tar/mouse-button-2 (event)
- (let ((menu
- (cons tm-tar/popup-menu-title
- (list (cons "Menu Items" tm-tar/popup-menu-items))
- )))
- (let ((func (x-popup-menu event menu)))
- (if func
- (funcall func)
- ))
- ))
- ))
-
- (defvar tm-tar/tar-mode-map nil)
- (if tm-tar/tar-mode-map
- nil
- (setq tm-tar/tar-mode-map (make-keymap))
- (suppress-keymap tm-tar/tar-mode-map)
- (define-key tm-tar/tar-mode-map "\C-c" 'exit-recursive-edit)
- (define-key tm-tar/tar-mode-map "q" 'exit-recursive-edit)
- (define-key tm-tar/tar-mode-map "n" 'tm-tar/next-line)
- (define-key tm-tar/tar-mode-map " " 'tm-tar/next-line)
- (define-key tm-tar/tar-mode-map "\C-m" 'tm-tar/next-line)
- (define-key tm-tar/tar-mode-map "p" 'tm-tar/previous-line)
- (define-key tm-tar/tar-mode-map "\177" 'tm-tar/previous-line)
- (define-key tm-tar/tar-mode-map "\C-\M-m" 'tm-tar/previous-line)
- (define-key tm-tar/tar-mode-map "v" 'tm-tar/view-file)
- (define-key tm-tar/tar-mode-map "\C-h" 'Helper-help)
- (define-key tm-tar/tar-mode-map "?" 'tm-tar/helpful-message)
- (if mouse-button-2
- (define-key tm-tar/tar-mode-map
- mouse-button-2 'tm:button-dispatcher)
- )
- )
-
- ;;; @@ tm-tar mode functions
- ;;;
-
- (defun tm-tar/tar-mode (&optional prev-buf)
- "Major mode for listing the contents of a tar archive file."
- (unwind-protect
- (let ((buffer-read-only t)
- (mode-name "tm-tar")
- (mode-line-buffer-identification '("%17b"))
- )
- (goto-char (point-min))
- (tm-tar/move-to-filename)
- (catch 'tm-tar/tar-mode (tm-tar/command-loop))
- )
- (if prev-buf
- (switch-to-buffer prev-buf)
- )
- ))
-
- (defun tm-tar/command-loop ()
- (let ((old-local-map (current-local-map))
- )
- (unwind-protect
- (progn
- (use-local-map tm-tar/tar-mode-map)
- (tm-tar/helpful-message)
- (recursive-edit)
- )
- (save-excursion
- (use-local-map old-local-map)
- ))
- ))
-
- (defun tm-tar/next-line ()
- (interactive)
- (next-line 1)
- (tm-tar/move-to-filename)
- )
-
- (defun tm-tar/previous-line ()
- (interactive)
- (previous-line 1)
- (tm-tar/move-to-filename)
- )
-
- (defun tm-tar/view-file ()
- (interactive)
- (let ((name (tm-tar/get-filename))
- )
- (save-excursion
- (switch-to-buffer tm-tar/view-buffer)
- (setq buffer-read-only nil)
- (erase-buffer)
- (message "Reading a file from an archive. Please wait...")
- (apply 'call-process tm-tar/tar-program
- nil t nil (append tm-tar/view-args (list name)))
- (goto-char (point-min))
- )
- (view-buffer tm-tar/view-buffer)
- ))
-
- (defun tm-tar/get-filename ()
- (let (eol)
- (save-excursion
- (end-of-line)
- (setq eol (point))
- (beginning-of-line)
- (save-excursion
- (if (re-search-forward "^d" eol t)
- (error "Cannot view a directory"))
- )
- (if (re-search-forward tm-tar/file-search-regexp eol t)
- (progn (let ((beg (point))
- )
- (skip-chars-forward "^ \n")
- (buffer-substring beg (point))
- ))
- (error "No file on this line")
- ))
- ))
-
- (defun tm-tar/move-to-filename ()
- (let ((eol (progn (end-of-line) (point)))
- )
- (beginning-of-line)
- (re-search-forward tm-tar/file-search-regexp eol t)
- ))
-
- (defun tm-tar/set-properties ()
- (if mouse-button-2
- (let ((beg (point-min))
- (end (point-max))
- )
- (goto-char beg)
- (save-excursion
- (while (re-search-forward tm-tar/file-search-regexp end t)
- (tm:add-button (point)
- (progn
- (end-of-line)
- (point))
- 'tm-tar/view-file)
- ))
- )))
-
- (defun tm-tar/helpful-message ()
- (interactive)
- (message "Type %s, %s, %s, %s, %s, %s."
- (substitute-command-keys "\\[Helper-help] for help")
- (substitute-command-keys "\\[tm-tar/helpful-message] for keys")
- (substitute-command-keys "\\[tm-tar/next-line] to next")
- (substitute-command-keys "\\[tm-tar/previous-line] to prev")
- (substitute-command-keys "\\[tm-tar/view-file] to view")
- (substitute-command-keys "\\[exit-recursive-edit] to quit")
- ))
-
- (defun tm-tar/y-or-n-p (prompt)
- (prog1
- (y-or-n-p prompt)
- (message "")
- ))
-
- ;;; @@ tar message decoder
- ;;
-
- (defun mime/decode-message/tar (beg end cal)
- (if (tm-tar/y-or-n-p "Do you want to enter tm-tar mode? ")
- (let ((coding (cdr (assoc 'encoding cal)))
- (cur-buf (current-buffer))
- (tm-tar/tar-file-name (expand-file-name (concat (make-temp-name
- (expand-file-name "tm" mime/tmp-dir)) ".tar")))
- (tm-tar/tmp-file-name (expand-file-name (make-temp-name
- (expand-file-name "tm" mime/tmp-dir))))
- new-buf
- )
- (find-file tm-tar/tmp-file-name)
- (setq new-buf (current-buffer))
- (setq buffer-read-only nil)
- (erase-buffer)
- (save-excursion
- (set-buffer cur-buf)
- (goto-char beg)
- (re-search-forward "^$")
- (append-to-buffer new-buf (+ (match-end 0) 1) end)
- )
- (if (member coding mime-viewer/uuencode-encoding-name-list)
- (progn
- (goto-char (point-min))
- (if (re-search-forward "^begin [0-9]+ " nil t)
- (progn
- (kill-line)
- (insert tm-tar/tar-file-name)
- )
- (progn
- (set-buffer-modified-p nil)
- (kill-buffer new-buf)
- (error "uuencode file signature was not found")
- ))))
- (save-buffer)
- (kill-buffer new-buf)
- (message "Listing the contents of an archive. Please wait...")
- (cond ((string-equal coding "base64")
- (call-process tm-tar/mmencode-program nil nil nil "-u"
- "-o" tm-tar/tar-file-name tm-tar/tmp-file-name)
- )
- ((string-equal coding "quoted-printable")
- (call-process tm-tar/mmencode-program nil nil nil "-u" "-q"
- "-o" tm-tar/tar-file-name tm-tar/tmp-file-name)
- )
- ((member coding mime-viewer/uuencode-encoding-name-list)
- (call-process tm-tar/uudecode-program nil nil nil
- tm-tar/tmp-file-name)
- )
- (t
- (copy-file tm-tar/tmp-file-name tm-tar/tar-file-name t)
- ))
- (delete-file tm-tar/tmp-file-name)
- (setq tm-tar/list-args (list "-tvf" tm-tar/tar-file-name))
- (setq tm-tar/view-args (list "-xOf" tm-tar/tar-file-name))
- (if (eq 0 (call-process tm-tar/gzip-program
- nil nil nil "-t" tm-tar/tar-file-name))
- (progn
- (setq tm-tar/list-args
- (append tm-tar/tar-decompress-arg tm-tar/list-args))
- (setq tm-tar/view-args
- (append tm-tar/tar-decompress-arg tm-tar/view-args))
- ))
- (switch-to-buffer tm-tar/view-buffer)
- (switch-to-buffer tm-tar/list-buffer)
- (setq buffer-read-only nil)
- (erase-buffer)
- (apply 'call-process tm-tar/tar-program
- nil t nil tm-tar/list-args)
- (if mouse-button-2
- (progn
- (make-local-variable 'tm:mother-button-dispatcher)
- (setq tm:mother-button-dispatcher 'tm-tar/mouse-button-2)
- ))
- (tm-tar/set-properties)
- (tm-tar/tar-mode mime::article/preview-buffer)
- (kill-buffer tm-tar/view-buffer)
- (kill-buffer tm-tar/list-buffer)
- (delete-file tm-tar/tar-file-name)
- )
- ))
-
- ;;; @@ program/buffer coding system
- ;;;
-
- (cond ((boundp 'MULE)
- (define-program-coding-system tm-tar/view-buffer nil *autoconv*)
- )
- ((boundp 'NEMACS)
- (define-program-kanji-code tm-tar/view-buffer nil 1)
- ))
-
- ;;; @@ message types to use tm-tar
- ;;;
-
- (set-atype 'mime/content-decoding-condition
- '((type . "application/octet-stream")
- (method . mime/decode-message/tar)
- (mode . "play") ("type" . "tar")
- ))
-
- (set-atype 'mime/content-decoding-condition
- '((type . "application/octet-stream")
- (method . mime/decode-message/tar)
- (mode . "play") ("type" . "tar+gzip")
- ))
-
- (set-atype 'mime/content-decoding-condition
- '((type . "application/x-gzip")
- (method . mime/decode-message/tar)
- (mode . "play") ("type" . "tar")
- ))
-
- (set-atype 'mime/content-decoding-condition
- '((type . "application/x-tar")
- (method . mime/decode-message/tar)
- (mode . "play")
- ))
-
- ;;; @ end
- ;;;
-
- (provide 'tm-tar)
-
- ;;; Local Variables:
- ;;; mode: emacs-lisp
- ;;; mode: outline-minor
- ;;; outline-regexp: ";;; @+\\|(......"
- ;;; End:
-