Add `wdired-isearch-filter-read-only' to lisp/wdired.el.

* lisp/wdired.el (wdired-change-to-wdired-mode): Set buffer-local
`isearch-filter-predicate' to `wdired-isearch-filter-read-only'.
(wdired-isearch-filter-read-only): New function.

Fixes: debbugs:6362

1 files changed, 7 insertions, 0 deletions

diff --git a/lisp/wdired.el b/lisp/wdired.el
index f71979e2727..cc99bd40628 100644
--- a/lisp/wdired.el
+++ b/lisp/wdired.el
@@ -216,6 +216,8 @@ See `wdired-mode'."
        (buffer-substring (point-min) (point-max)))
   (set (make-local-variable 'wdired-old-point) (point))
   (set (make-local-variable 'query-replace-skip-read-only) t)
+  (set (make-local-variable 'isearch-filter-predicate)
+       'wdired-isearch-filter-read-only)
   (use-local-map wdired-mode-map)
   (force-mode-line-update)
   (setq buffer-read-only nil)
@@ -241,6 +243,11 @@ See `wdired-mode'."
 		 "Press \\[wdired-finish-edit] when finished \
 or \\[wdired-abort-changes] to abort changes")))
 
+(defun wdired-isearch-filter-read-only (beg end)
+  "Skip matches that have a read-only property."
+  (and (isearch-filter-visible beg end)
+       (not (text-property-not-all (min beg end) (max beg end)
+				   'read-only nil))))
 
 ;; Protect the buffer so only the filenames can be changed, and put
 ;; properties so filenames (old and new) can be easily found.