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bug#35487: Make visiting function from help-mode more customizable
From: |
Juri Linkov |
Subject: |
bug#35487: Make visiting function from help-mode more customizable |
Date: |
Mon, 29 Apr 2019 22:54:34 +0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (x86_64-pc-linux-gnu) |
> I often want to visit function from help-mode in `this window' in
> stead of `other window'. To do so, I found that to revise
> help-function in help-function-def works.
>
> I propose to (1) move help-function described as lambda function out
> of button definition and (2) make function to visit function from
> help-mode customizable.
>
> After the revision, I can visit function from help-mode in `this
> windows' as shown below.
I have exactly the same problem. Fortunately, we have a powerful
customization mechanism of display-buffer-alist to allow clicking
a link from the *Help* buffer to open source code in the same window:
#+begin_src emacs-lisp
(custom-set-variables
'(display-buffer-alist
'((display-buffer-condition-from-help display-buffer-same-window))))
(defun display-buffer-condition-from-help (_buffer-name _action)
(string-match-p "\\`\\*\\(Help\\)\\*\\(\\|<[0-9]+>\\)\\'" (buffer-name
(current-buffer))))
#+end_src