Re: Patch proposal: display symbol source code in help buffers

[Ihor Radchenko]

Lars Ingebrigtsen <larsi@gnus.org> writes:

> Ihor Radchenko <yantar92@gmail.com> writes:
>
>> What about the other patch (Honor widen-automatically in
>> help-function-def--button-function)?
>
> Could you re-post that patch?  :-)

Attached

>From 635b8cab71d9f296bdef68dafd1d124213b777c2 Mon Sep 17 00:00:00 2001
Message-Id: 
<635b8cab71d9f296bdef68dafd1d124213b777c2.1633078979.git.yantar92@gmail.com>
From: Ihor Radchenko <yantar92@gmail.com>
Date: Fri, 1 Oct 2021 17:02:06 +0800
Subject: [PATCH] Honor widen-automatically in
 help-function-def--button-function

* lisp/help-mode.el (help-function-def--button-function): Ask user to
widen the buffer when `widen-automatically' is set to nil.
---
 lisp/help-mode.el | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lisp/help-mode.el b/lisp/help-mode.el
index d61b1bdc62..2132a143c7 100644
--- a/lisp/help-mode.el
+++ b/lisp/help-mode.el
@@ -268,11 +268,14 @@ help-function-def--button-function
       (pop-to-buffer (car location))
       (run-hooks 'find-function-after-hook)
       (if position
-          (progn
+          (catch :exit
             ;; Widen the buffer if necessary to go to this position.
             (when (or (< position (point-min))
                       (> position (point-max)))
-              (widen))
+              (if (or widen-automatically
+                      (yes-or-no-p "The location is outside narrowing. Widen? 
"))
+                  (widen)
+                (throw :exit nil)))
             ;; Save mark for the old location, unless the point is not
             ;; actually going to move.
             (unless (= (point) position)
-- 
2.32.0