X-Git-Url: http://cgit.sxemacs.org/?p=gnus;a=blobdiff_plain;f=lisp%2Fbinhex.el;h=a5f3982d072e4a6c65a567a1f84ac3d4cacaa47a;hp=e131db76af88a51e78fef44dd52d939e1767919d;hb=b52037f4a9c6bee1ff556c22750e158da1208d4b;hpb=9a8731d6dea8021a10dec1b42f382609336a9aa9

diff --git a/lisp/binhex.el b/lisp/binhex.el
index e131db76a..a5f3982d0 100644
--- a/lisp/binhex.el
+++ b/lisp/binhex.el
@@ -1,7 +1,6 @@
-;;; binhex.el --- elisp native binhex decode
+;;; binhex.el --- decode BinHex-encoded text
 
-;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-;;   2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 1998-2016 Free Software Foundation, Inc.
 
 ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
 ;; Keywords: binhex news
@@ -23,6 +22,11 @@
 
 ;;; Commentary:
 
+;; BinHex is a binary-to-text encoding scheme similar to uuencode.
+;; The command `binhex-decode-region' decodes BinHex-encoded text, via
+;; the external program "hexbin" if that is available, or an Emacs
+;; Lisp implementation if not.
+
 ;;; Code:
 
 (eval-when-compile (require 'cl))
@@ -39,20 +43,20 @@
   :group 'news)
 
 (defcustom binhex-decoder-program "hexbin"
-  "*Non-nil value should be a string that names a binhex decoder.
+  "Non-nil value should be a string that names a binhex decoder.
 The program should expect to read binhex data on its standard
 input and write the converted data to its standard output."
   :type 'string
   :group 'binhex)
 
 (defcustom binhex-decoder-switches '("-d")
-  "*List of command line flags passed to the command `binhex-decoder-program'."
+  "List of command line flags passed to the command `binhex-decoder-program'."
   :group 'binhex
   :type '(repeat string))
 
 (defcustom binhex-use-external
   (executable-find binhex-decoder-program)
-  "*Use external binhex program."
+  "Use external binhex program."
   :version "22.1"
   :group 'binhex
   :type 'boolean)
@@ -75,10 +79,11 @@ input and write the converted data to its standard output."
 
 ;;;###autoload
 (defconst binhex-begin-line
-  "^:...............................................................$")
+  "^:...............................................................$"
+  "Regular expression matching the start of a BinHex encoded region.")
 (defconst binhex-body-line
   "^[^:]...............................................................$")
-(defconst binhex-end-line ":$")
+(defconst binhex-end-line ":$")		; unused
 
 (defvar binhex-temporary-file-directory
   (cond ((fboundp 'temp-directory) (temp-directory))
@@ -221,7 +226,8 @@ If HEADER-ONLY is non-nil only decode header and return filename."
 	  (goto-char start)
 	  (when (re-search-forward binhex-begin-line end t)
             (setq work-buffer (generate-new-buffer " *binhex-work*"))
-            (with-current-buffer work-buffer (set-buffer-multibyte nil))
+	    (unless (featurep 'xemacs)
+	      (with-current-buffer work-buffer (set-buffer-multibyte nil)))
 	    (beginning-of-line)
 	    (setq bits 0 counter 0)
 	    (while tmp
@@ -327,5 +333,4 @@ If HEADER-ONLY is non-nil only decode header and return filename."
 
 (provide 'binhex)
 
-;; arch-tag: 8476badd-1e76-4f1d-a640-f9a38c72eed8
 ;;; binhex.el ends here