Fix shr--set-target-ids test for empty buffer

* lisp/net/shr.el (shr--set-target-ids): Fix the check for an
empty buffer (which may be narrowed).

diff --git a/lisp/net/shr.el b/lisp/net/shr.el
index b269607e323203c7e690eb9fe062fc24c9a4a1b9..0645f4721a31d803b782bc3a742ba019f34e4e3d 100644 (file)
--- a/lisp/net/shr.el
+++ b/lisp/net/shr.el
@@ -399,7 +399,7 @@ DOM should be a parse tree as generated by
 
 (defun shr--set-target-ids (ids)
   ;; If the buffer is empty, there's no point in setting targets.
-  (unless (zerop (buffer-size))
+  (unless (zerop (- (point-max) (point-min)))
     ;; We may have several targets in the same place (if you have
     ;; several <span id='foo'> things after one another).  So group
     ;; them by position.