Synch with `t-gnus-6_14'.

[elisp/gnus.git-] / lisp / uudecode.el

diff --git a/lisp/uudecode.el b/lisp/uudecode.el
index ea58b84..fa55b88 100644 (file)
--- a/lisp/uudecode.el
+++ b/lisp/uudecode.el
@@ -1,12 +1,10 @@
 ;;; 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: 5.5 $
-;; Keywords: uudecode
+;; Keywords: uudecode news
 
-;; This file is not part of GNU Emacs, but the same permissions
-;; apply.
+;; This file is a 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
@@ -31,15 +29,19 @@
 ;;; Code:
 
 (if (not (fboundp 'char-int))
-    (fset 'char-int 'identity))
+    (defalias '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))
 
 (defconst uudecode-alphabet "\040-\140")
 
@@ -55,11 +57,11 @@ input and write the converted data to its standard output.")
 (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.
+  "Uudecode region between START and END with external decoder.
 
 If FILE-NAME is non-nil, save the result to FILE-NAME."
   (interactive "r\nP")
@@ -75,9 +77,12 @@ If FILE-NAME is non-nil, save the result to FILE-NAME."
               (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")))))
+       (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
@@ -106,7 +111,7 @@ If FILE-NAME is non-nil, save the result to FILE-NAME."
       (and work-buffer (kill-buffer work-buffer))
       (ignore-errors (or file-name (delete-file tempfile))))))
 
-(if (string-match "XEmacs" emacs-version)
+(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)))
@@ -117,7 +122,7 @@ If FILE-NAME is non-nil, save the result to FILE-NAME."
 ;;;###autoload
 
 (defun uudecode-decode-region (start end &optional file-name)
-  "uudecode region between START and END.
+  "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)
@@ -166,25 +171,25 @@ If FILE-NAME is non-nil, save the result to FILE-NAME."
                         (uudecode-insert-char
                          (logand (lsh bits -8) 255) 1 nil work-buffer)
                         (uudecode-insert-char (logand bits 255) 1 nil
-                                        work-buffer)
+                                              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)
-                 (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)))
+              (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