;;; uudecode.el -- elisp native uudecode
-;; Copyright (c) 1998 by Shenghuo Zhu <zsh@cs.rochester.edu>
+;; Copyright (c) 1998,99 Free Software Foundation, Inc.
;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
-;; $Revision: 1.1 $
-;; Keywords: uudecode
+;; Keywords: uudecode news
+
+;; This file is a part of GNU Emacs.
-;; This file is part of GNU Emacs.
-;;
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
-;;
+
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; 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, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
-;; Commentary:
+;;; Commentary:
+
;; Lots of codes are stolen from mm-decode.el, gnus-uu.el and
;; base64.el
;;; Code:
(if (not (fboundp 'char-int))
- (fset 'char-int 'identity))
+ (defalias 'char-int 'identity))
-(defvar uu-decoder-program "uudecode"
+(defcustom uudecode-decoder-program "uudecode"
"*Non-nil value should be a string that names a uu decoder.
The program should expect to read uu data on its standard
-input and write the converted data to its standard output.")
+input and write the converted data to its standard output."
+ :type 'string
+ :group 'gnus-extract)
-(defvar uu-decoder-switches nil
- "*List of command line flags passed to the command named by uu-decoder-program.")
+(defcustom uudecode-decoder-switches nil
+ "*List of command line flags passed to `uudecode-decoder-program'."
+ :group 'gnus-extract
+ :type '(repeat string))
-(defvar uu-alphabet "\040-\140")
+(defconst uudecode-alphabet "\040-\140")
-(defvar uu-begin-string "^begin[ \t]+[0-7][0-7][0-7][ \t]+\\(.*\\)$")
-(defvar uu-end-string "^end[ \t]*$")
+(defconst uudecode-begin-line "^begin[ \t]+[0-7][0-7][0-7][ \t]+\\(.*\\)$")
+(defconst uudecode-end-line "^end[ \t]*$")
-(defvar uu-body-line
+(defconst uudecode-body-line
(let ((i 61) (str "^M"))
(while (> (setq i (1- i)) 0)
(setq str (concat str "[^a-z]")))
(concat str ".?$")))
-(defvar uu-temporary-file-directory "/tmp/")
+(defvar uudecode-temporary-file-directory
+ (cond ((fboundp 'temp-directory) (temp-directory))
+ ((boundp 'temporary-file-directory) temporary-file-directory)
+ ("/tmp")))
-(defun uu-decode-region-external (start end &optional file-name)
- "Decode uuencoded files using an external program."
+;;;###autoload
+(defun uudecode-decode-region-external (start end &optional file-name)
+ "Uudecode region between START and END with external decoder.
+
+If FILE-NAME is non-nil, save the result to FILE-NAME."
(interactive "r\nP")
- (let ((cbuf (current-buffer)) tempfile firstline work-buffer status)
+ (let ((cbuf (current-buffer)) tempfile firstline work-buffer status)
(save-excursion
(goto-char start)
- (when (re-search-forward uu-begin-string nil t)
+ (when (re-search-forward uudecode-begin-line nil t)
(forward-line 1)
(setq firstline (point))
(cond ((null file-name))
((stringp file-name))
- (t
- (setq file-name (read-file-name "File to Name:"
- nil nil nil
+ (t
+ (setq file-name (read-file-name "File to Name:"
+ nil nil nil
(match-string 1)))))
- (setq tempfile (expand-file-name
- (or file-name (concat uu-temporary-file-directory
- (make-temp-name "uu")))))
+ (setq tempfile (if file-name
+ (expand-file-name file-name)
+ (make-temp-name
+ ;; /tmp/uu...
+ (expand-file-name
+ "uu" uudecode-temporary-file-directory))))
(let ((cdir default-directory) default-process-coding-system)
(unwind-protect
(progn
- (set-buffer (setq work-buffer
+ (set-buffer (setq work-buffer
(generate-new-buffer " *uudecode-work*")))
(buffer-disable-undo work-buffer)
(insert "begin 600 " (file-name-nondirectory tempfile) "\n")
(apply 'call-process-region
(point-min)
(point-max)
- uu-decoder-program
+ uudecode-decoder-program
nil
nil
nil
- uu-decoder-switches))
+ uudecode-decoder-switches))
(cd cdir) (set-buffer cbuf)))
(if (file-exists-p tempfile)
(unless file-name
(insert-file-contents-literally tempfile)))
(message "Can not uudecode")))
(and work-buffer (kill-buffer work-buffer))
- (condition-case ()
- (or file-name (delete-file tempfile))
- (error)))))
-
-(defun uu-insert-char (char &optional count ignored buffer)
- (condition-case nil
- (progn
- (insert-char char count ignored buffer)
- (fset 'uu-insert-char 'insert-char))
- (wrong-number-of-arguments
- (fset 'uu-insert-char 'uu-xemacs-insert-char)
- (uu-insert-char char count ignored buffer))))
-
-(defun uu-xemacs-insert-char (char &optional count ignored buffer)
- (if (or (null buffer) (eq buffer (current-buffer)))
- (insert-char char count)
- (save-excursion
- (set-buffer buffer)
- (insert-char char count))))
+ (ignore-errors (or file-name (delete-file tempfile))))))
+
+(if (featurep 'xemacs)
+ (defalias 'uudecode-insert-char 'insert-char)
+ (defun uudecode-insert-char (char &optional count ignored buffer)
+ (if (or (null buffer) (eq buffer (current-buffer)))
+ (insert-char char count)
+ (with-current-buffer buffer
+ (insert-char char count)))))
+
+;;;###autoload
-(defun uu-decode-region (start end &optional file-name)
+(defun uudecode-decode-region (start end &optional file-name)
+ "Uudecode region between START and END.
+If FILE-NAME is non-nil, save the result to FILE-NAME."
(interactive "r\nP")
(let ((work-buffer nil)
(done nil)
(remain 0)
(bits 0)
(lim 0) inputpos
- (non-data-chars (concat "^" uu-alphabet)))
+ (non-data-chars (concat "^" uudecode-alphabet)))
(unwind-protect
(save-excursion
(goto-char start)
- (when (re-search-forward uu-begin-string nil t)
+ (when (re-search-forward uudecode-begin-line nil t)
(cond ((null file-name))
((stringp file-name))
- (t
- (setq file-name (expand-file-name
- (read-file-name "File to Name:"
- nil nil nil
+ (t
+ (setq file-name (expand-file-name
+ (read-file-name "File to Name:"
+ nil nil nil
(match-string 1))))))
(setq work-buffer (generate-new-buffer " *uudecode-work*"))
(buffer-disable-undo work-buffer)
(setq inputpos (point))
(setq remain 0 bits 0 counter 0)
(cond
- ((> (skip-chars-forward uu-alphabet end) 0)
+ ((> (skip-chars-forward uudecode-alphabet end) 0)
(setq lim (point))
- (setq remain
+ (setq remain
(logand (- (char-int (char-after inputpos)) 32) 63))
(setq inputpos (1+ inputpos))
(if (= remain 0) (setq done t))
(while (and (< inputpos lim) (> remain 0))
- (setq bits (+ bits
- (logand
- (-
+ (setq bits (+ bits
+ (logand
+ (-
(char-int (char-after inputpos)) 32) 63)))
(if (/= counter 0) (setq remain (1- remain)))
(setq counter (1+ counter)
inputpos (1+ inputpos))
(cond ((= counter 4)
- (uu-insert-char (lsh bits -16) 1 nil work-buffer)
- (uu-insert-char (logand (lsh bits -8) 255) 1 nil
- work-buffer)
- (uu-insert-char (logand bits 255) 1 nil
- work-buffer)
+ (uudecode-insert-char
+ (lsh bits -16) 1 nil work-buffer)
+ (uudecode-insert-char
+ (logand (lsh bits -8) 255) 1 nil work-buffer)
+ (uudecode-insert-char (logand bits 255) 1 nil
+ work-buffer)
(setq bits 0 counter 0))
(t (setq bits (lsh bits 6)))))))
(cond
- (done)
- ((> 0 remain)
- (error "uucode line ends unexpectly")
- (setq done t))
- ((and (= (point) end) (not done))
- (error "uucode ends unexpectly")
- (setq done t))
- ((= counter 3)
- (uu-insert-char (logand (lsh bits -16) 255) 1 nil
- work-buffer)
- (uu-insert-char (logand (lsh bits -8) 255) 1 nil
- work-buffer))
- ((= counter 2)
- (uu-insert-char (logand (lsh bits -10) 255) 1 nil
- work-buffer)))
+ (done)
+ ((> 0 remain)
+ (error "uucode line ends unexpectly")
+ (setq done t))
+ ((and (= (point) end) (not done))
+ ;;(error "uucode ends unexpectly")
+ (setq done t))
+ ((= counter 3)
+ (uudecode-insert-char (logand (lsh bits -16) 255) 1 nil
+ work-buffer)
+ (uudecode-insert-char (logand (lsh bits -8) 255) 1 nil
+ work-buffer))
+ ((= counter 2)
+ (uudecode-insert-char (logand (lsh bits -10) 255) 1 nil
+ work-buffer)))
(skip-chars-forward non-data-chars end))
(if file-name
(save-excursion
projects / elisp / gnus.git- / blobdiff