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emacs-28 f22e9ba9ac: Fix regression in Occur Edit mode
From: |
Eli Zaretskii |
Subject: |
emacs-28 f22e9ba9ac: Fix regression in Occur Edit mode |
Date: |
Sun, 30 Jan 2022 01:50:30 -0500 (EST) |
branch: emacs-28
commit f22e9ba9ac64c30d6532a508494b5149c27596e7
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>
Fix regression in Occur Edit mode
* lisp/replace.el (occur-after-change-function): Fix the algorithm
to find the smallest change in some corner cases. (Bug#53598)
---
lisp/replace.el | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/lisp/replace.el b/lisp/replace.el
index 45bd05d41d..b1cfd7e3f4 100644
--- a/lisp/replace.el
+++ b/lisp/replace.el
@@ -1413,10 +1413,15 @@ To return to ordinary Occur mode, use
\\[occur-cease-edit]."
(length s1)))))
(prefix-len (funcall common-prefix buf-str text))
(suffix-len (funcall common-prefix
- (reverse buf-str) (reverse text))))
+ (reverse (substring
+ buf-str prefix-len))
+ (reverse (substring
+ text prefix-len)))))
(setq beg-pos (+ beg-pos prefix-len))
(setq end-pos (- end-pos suffix-len))
- (setq text (substring text prefix-len (- suffix-len)))
+ (setq text (substring text prefix-len
+ (and (not (zerop suffix-len))
+ (- suffix-len))))
(delete-region beg-pos end-pos)
(goto-char beg-pos)
(insert text)))
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