Comment on invoking `imenu-add-menubar-index' automatically

README.org

@@ -4553,6 +4553,8 @@ configuration:
 #+caption: Setup ~eglot~ for ~julia-mode~.
 #+name: lst:setup-eglot-jl
 #+begin_src emacs-lisp -n :results silent
+;; How to invoke `imenu-add-menubar-index' automatically?
+;; Neither advising `eglot' nor hooking major modes seems to work.
 (when (ensure-package-installation 'eglot-jl)
   (eglot-jl-init))
 #+end_src
@@ -4843,20 +4845,23 @@ silent]{(describe-variable 'no-littering-var-directory)}.  Listing
     "(cdr (assoc 'slynk:*string-elision-length* slynk:*slynk-pprint-bindings*))"
     "Slynk \"string elision length\" getter command.")
 
-  (defun slynk-command-set-sel (sel)
-    "Slynk SEL \"string elision length\" setter command.
-SEL values must be positive integers to enable or `nil' to disable elision."
-    (format "(setf %s %s)" slynk-command-get-sel sel))
+  (defun slynk-command-set-sel (length)
+    "Slynk LENGTH \"string elision length\" setter command.
+LENGTH values must be positive integers to enable or `nil' to disable elision."
+    (format "(setf %s %s)" slynk-command-get-sel length))
 
   (defun slynk-get-sel ()
     "Get the Slynk \"string-elision-length\"."
     (cadr (sly-eval `(slynk:eval-and-grab-output ,slynk-command-get-sel))))
 
-  (defun slynk-set-sel (sel)
-    "Set the Slynk \"string-elision-length\" SEL.
-SEL values must be positive integers to enable or `nil' to disable elision."
-    (cadr (sly-eval `(slynk:eval-and-grab-output ,(slynk-command-set-sel sel)))))
+  ;; Most useful for Org source blocks.
+  (defun slynk-set-sel (length)
+    "Set the Slynk \"string-elision-length\" LENGTH.
+LENGTH values must be positive integers to enable or `nil' to disable elision."
+    (cadr
+     (sly-eval `(slynk:eval-and-grab-output ,(slynk-command-set-sel length)))))
 
+  ;; Most useful for interactive use.
   (defun slynk-eval-sel-command (string)
     "Evaluate the Slynk \"string-elision-length\" command STRING."
     (unless (sly-connected-p)
@@ -4869,14 +4874,14 @@ SEL values must be positive integers to enable or `nil' to disable elision."
     (interactive)
     (slynk-eval-sel-command slynk-command-get-sel))
 
-  (defun slynk-set-string-elision-length (&optional sel)
-    "Set the Slynk \"string-elision-length\" by evaluating SEL.
-Valid SEL values are positive integers to enable or `nil' to disable elision."
-    (interactive "XSlynk string-elision-length (nil or sel > 0): ")
-    (unless (or (null sel) (and (integerp sel) (> sel 0)))
+  (defun slynk-set-string-elision-length (&optional length)
+    "Set the Slynk \"string-elision-length\" LENGTH.
+Valid LENGTH values are positive integers to set or `nil' to reset."
+    (interactive "X\ Slink string elision length: ")
+    (unless (or (null length) (and (integerp length) (> length 0)))
       (user-error
-       "Slynk `sel' must evaluate to `nil' or a positive integer (got `%S')" sel))
-    (slynk-eval-sel-command (slynk-command-set-sel sel))))
+       "Slynk `length' must be `nil' or a positive integer (got `%S')" length))
+    (slynk-eval-sel-command (slynk-command-set-sel length))))
 #+end_src
 
 #+caption[Script to dump a SBCL core for the Sly Common Lisp IDE]: