[Emacs-diffs] Changes to emacs/lisp/gnus/yenc.el,v

[Miles Bader]

CVSROOT:        /cvsroot/emacs
Module name:    emacs
Changes by:     Miles Bader <miles>     07/12/06 00:21:02

Index: lisp/gnus/yenc.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/gnus/yenc.el,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -b -r1.7 -r1.8
--- lisp/gnus/yenc.el   26 Jul 2007 05:27:06 -0000      1.7
+++ lisp/gnus/yenc.el   6 Dec 2007 00:20:59 -0000       1.8
@@ -55,6 +55,25 @@
        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."