From: Mattias Engdegård <mattiase@acm.org>
Date: Mon, 26 Jul 2021 07:15:04 +0000 (+0200)
Subject: ; * lisp/replace.el (occur-after-change-function): Fix logic mistake
X-Git-Tag: emacs-28.0.90~1691
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=6b7c22e7ee87a57ff78e2baf0baa847e34b9b4da;p=emacs.git

; * lisp/replace.el (occur-after-change-function): Fix logic mistake
---

diff --git a/lisp/replace.el b/lisp/replace.el
index f8c5fed5578..d0c63669159 100644
--- a/lisp/replace.el
+++ b/lisp/replace.el
@@ -1407,9 +1407,9 @@ To return to ordinary Occur mode, use \\[occur-cease-edit]."
                      (common-prefix
                       (lambda (s1 s2)
                         (let ((c (compare-strings s1 nil nil s2 nil nil)))
-                          (if (zerop c)
-                              (length s1)
-                            (1- (abs c))))))
+                          (if (numberp c)
+                              (1- (abs c))
+                            (length s1)))))
                      (prefix-len (funcall common-prefix buf-str text))
                      (suffix-len (funcall common-prefix
                                           (reverse buf-str) (reverse text))))