;;; uudecode.el -- elisp native uudecode
-;; Copyright (c) 1998 by Shenghuo Zhu <zsh@cs.rochester.edu>
+
+;; Copyright (c) 1998, 1999, 2000, 2001, 2003, 2004
+;; Free Software Foundation, Inc.
;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
-;; $Revision: 5.5 $
-;; Keywords: uudecode
+;; Keywords: uudecode news
-;; This file is not part of GNU Emacs, but the same permissions
-;; apply.
+;; 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
;;; 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))
+(eval-when-compile (require 'cl))
+
+(eval-and-compile
+ (defalias 'uudecode-char-int
+ (if (fboundp 'char-int)
+ 'char-int
+ 'identity)))
-(defvar uudecode-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 uudecode-decoder-switches nil
- "*List of command line flags passed to the command named by uudecode-decoder-program.")
+(defcustom uudecode-decoder-switches nil
+ "*List of command line flags passed to `uudecode-decoder-program'."
+ :group 'gnus-extract
+ :type '(repeat string))
+
+(defcustom uudecode-use-external
+ (executable-find uudecode-decoder-program)
+ "*Use external uudecode program."
+ :group 'gnus-extract
+ :type 'boolean)
(defconst uudecode-alphabet "\040-\140")
(defvar uudecode-temporary-file-directory
(cond ((fboundp 'temp-directory) (temp-directory))
((boundp 'temporary-file-directory) temporary-file-directory)
- ("/tmp/")))
+ ("/tmp")))
;;;###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."
+ "Uudecode region between START and END using external program.
+If FILE-NAME is non-nil, save the result to FILE-NAME. The program
+used is specified by `uudecode-decoder-program'."
(interactive "r\nP")
- (let ((cbuf (current-buffer)) tempfile firstline work-buffer status)
+ (let ((cbuf (current-buffer)) tempfile firstline status)
(save-excursion
(goto-char start)
(when (re-search-forward uudecode-begin-line 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 uudecode-temporary-file-directory
- (make-temp-name "uu")))))
- (let ((cdir default-directory) default-process-coding-system)
+ (setq tempfile (if file-name
+ (expand-file-name file-name)
+ (if (fboundp 'make-temp-file)
+ (let ((temporary-file-directory
+ uudecode-temporary-file-directory))
+ (make-temp-file "uu"))
+ (expand-file-name
+ (make-temp-name "uu")
+ uudecode-temporary-file-directory))))
+ (let ((cdir default-directory)
+ default-process-coding-system)
(unwind-protect
- (progn
- (set-buffer (setq work-buffer
- (generate-new-buffer " *uudecode-work*")))
- (buffer-disable-undo work-buffer)
+ (with-temp-buffer
(insert "begin 600 " (file-name-nondirectory tempfile) "\n")
(insert-buffer-substring cbuf firstline end)
(cd (file-name-directory tempfile))
(let (format-alist)
(insert-file-contents-literally tempfile)))
(message "Can not uudecode")))
- (and work-buffer (kill-buffer work-buffer))
(ignore-errors (or file-name (delete-file tempfile))))))
-(if (string-match "XEmacs" emacs-version)
- (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 uudecode-decode-region (start end &optional file-name)
- "uudecode region between START and END.
+(defun uudecode-decode-region-internal (start end &optional file-name)
+ "Uudecode region between START and END without using an external program.
If FILE-NAME is non-nil, save the result to FILE-NAME."
(interactive "r\nP")
- (let ((work-buffer nil)
- (done nil)
+ (let ((done nil)
(counter 0)
(remain 0)
(bits 0)
- (lim 0) inputpos
+ (lim 0) inputpos result
(non-data-chars (concat "^" uudecode-alphabet)))
- (unwind-protect
- (save-excursion
+ (save-excursion
+ (goto-char start)
+ (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
+ (match-string 1))))))
+ (forward-line 1)
+ (skip-chars-forward non-data-chars end)
+ (while (not done)
+ (setq inputpos (point))
+ (setq remain 0 bits 0 counter 0)
+ (cond
+ ((> (skip-chars-forward uudecode-alphabet end) 0)
+ (setq lim (point))
+ (setq remain
+ (logand (- (uudecode-char-int (char-after inputpos)) 32)
+ &