update.

[chise/xemacs-chise.git.1] / lisp / text-props.el

diff --git a/lisp/text-props.el b/lisp/text-props.el
index e08bbbc..4c30905 100644 (file)
--- a/lisp/text-props.el
+++ b/lisp/text-props.el
@@ -4,7 +4,7 @@
 ;; Copyright (C) 1995 Amdahl Corporation.
 ;; Copyright (C) 1995 Ben Wing.
 
-;; Author: Jamie Zawinski <jwz@netscape.com>
+;; Author: Jamie Zawinski <jwz@jwz.org>
 ;; Maintainer: XEmacs Development Team
 ;; Keywords: extensions, wp, faces, dumped
 
@@ -234,7 +234,7 @@ containing the text and defaults to the current buffer."
     (setq start (next-single-property-change start prop buffer-or-string end)))
   ;; we have to insert a special check for end due to the illogical
   ;; definition of next-single-property-change (blame FSF for this).
-  (if (eq start end) nil start))
+  (if (and start (>= start end)) nil start))
 
 (defun text-property-not-all (start end prop value &optional buffer-or-string)
   "Check text from START to END to see if PROP is ever not `eq' to VALUE.
@@ -248,7 +248,7 @@ containing the text and defaults to the current buffer."
                                               buffer-or-string end)))
       ;; we have to insert a special check for end due to the illogical
       ;; definition of previous-single-property-change (blame FSF for this).
-      (if (eq retval end) nil retval))))
+      (if (and retval (>= retval end)) nil retval))))
 
 ;; Older versions that only work sometimes (when VALUE is non-nil
 ;; for text-property-any, and maybe only when VALUE is nil for