X-Git-Url: http://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fyenc.el;h=9fdf62d43b3e957c5c56788c7da48bb18ec22b7b;hb=0661509959b5bf873e14519923ed74ade86925ac;hp=37018d2fa196f6da0b3b7152b2eabcb7b16cc3a4;hpb=786d05e27f23ae1e1254d90a50f61487e168c616;p=gnus

diff --git a/lisp/yenc.el b/lisp/yenc.el
index 37018d2fa..9fdf62d43 100644
--- a/lisp/yenc.el
+++ b/lisp/yenc.el
@@ -1,16 +1,16 @@
 ;;; yenc.el --- elisp native yenc decoder
 
-;; Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
 
 ;; Author: Jesper Harder <harder@ifa.au.dk>
 ;; Keywords: yenc news
 
 ;; This file is part of GNU Emacs.
 
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; 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.
+;; the Free Software Foundation, either version 3 of the License, 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
@@ -18,9 +18,7 @@
 ;; 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., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Commentary:
 
@@ -55,6 +53,25 @@
        191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207
        208 209 210 211 212 213])
 
+(defun yenc-first-part-p ()
+  "Say whether the buffer contains the first part of a yEnc file."
+  (save-excursion
+    (goto-char (point-min))
+    (re-search-forward "^=ybegin part=1 " nil t)))
+
+(defun yenc-last-part-p ()
+  "Say whether the buffer contains the last part of a yEnc file."
+  (save-excursion
+    (goto-char (point-min))
+    (let (total-size end-size)
+      (when (re-search-forward "^=ybegin.*size=\\([0-9]+\\)" nil t)
+	(setq total-size (match-string 1)))
+      (when (re-search-forward "^=ypart.*end=\\([0-9]+\\)" nil t)
+	(setq end-size (match-string 1)))
+      (and total-size
+	   end-size
+	   (string= total-size end-size)))))
+
 ;;;###autoload
 (defun yenc-decode-region (start end)
   "Yenc decode region between START and END using an internal decoder."
@@ -72,8 +89,9 @@
 	      (when (re-search-forward "^=yend.*$" end t)
 		(setq last (match-beginning 0))
 		(setq footer-alist (yenc-parse-line (match-string 0)))
-		(let (default-enable-multibyte-characters)
-		  (setq work-buffer (generate-new-buffer " *yenc-work*")))
+		(setq work-buffer (generate-new-buffer " *yenc-work*"))
+		(unless (featurep 'xemacs)
+		  (with-current-buffer work-buffer (set-buffer-multibyte nil)))
 		(while (< first last)
 		  (setq char (char-after first))
 		  (cond ((or (eq char ?\r)
@@ -118,5 +136,4 @@
 
 (provide 'yenc)
 
-;;; arch-tag: 74df17e8-6fa8-4071-9f7d-54d548d79d9a
 ;;; yenc.el ends here