From: Mauro Aranda <maurooaranda@gmail.com>
Date: Tue, 21 Jan 2025 00:16:48 +0000 (-0300)
Subject: Avoid error with empty search string in Customize
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=aa33e6358c344d232cf1a11f8d40752e606796a1;p=emacs.git

Avoid error with empty search string in Customize

* lisp/cus-edit.el (custom-buffer-create-internal): Only call
customize-apropos if the string is not empty.  (Bug#75714)

(cherry picked from commit d4ca688abefa90cf3e54add036b32c06b7da6363)
---

diff --git a/lisp/cus-edit.el b/lisp/cus-edit.el
index 8b9a101cecd..ee0e9a53f1b 100644
--- a/lisp/cus-edit.el
+++ b/lisp/cus-edit.el
@@ -1830,14 +1830,17 @@ or a regular expression.")
 	       'editable-field
 	       :size 40 :help-echo echo
 	       :action (lambda (widget &optional _event)
-                         (customize-apropos (split-string (widget-value widget)))))))
+                         (let ((value (widget-value widget)))
+                           (if (string= value "")
+                               (message "Empty search field")
+                             (customize-apropos (split-string value))))))))
 	(widget-insert " ")
 	(widget-create-child-and-convert
 	 search-widget 'push-button
 	 :tag " Search "
 	 :help-echo echo :action
 	 (lambda (widget &optional _event)
-	   (customize-apropos (split-string (widget-value (widget-get widget :parent))))))
+           (widget-apply (widget-get widget :parent) :action)))
 	(widget-insert "\n")))
 
     ;; The custom command buttons are also in the toolbar, so for a