From: Marcin Borkowski <mbork@mbork.pl>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: help-gnu-emacs@gnu.org
Subject: Re: How does `describe-function' know where the source code of the function is?
Date: Tue, 18 Jan 2022 18:41:25 +0100 [thread overview]
Message-ID: <87ee55eybe.fsf@mbork.pl> (raw)
In-Reply-To: <jwviluheozl.fsf-monnier+emacs@gnu.org>
On 2022-01-18, at 03:51, Stefan Monnier via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org> wrote:
>> question is: how does `describe-function' know where the link should
>> point to (and if it should be rendered at all)? I skimmed its source
>
> The name of the file is stored in `load-history`. The function
> definition itself is then found (or not) by a naive regexp search.
Thanks! This is actually kind of fascinating - on the one hand, it
seems so fragile, and on the other hand, it works 99.99% of the time...
Best,
--
Marcin Borkowski
http://mbork.pl
next prev parent reply other threads:[~2022-01-18 17:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-17 4:03 How does `describe-function' know where the source code of the function is? Marcin Borkowski
2022-01-17 4:14 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-17 4:27 ` Eduardo Ochs
2022-01-17 16:22 ` Michael Heerdegen
2022-01-18 2:51 ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-01-18 17:41 ` Marcin Borkowski [this message]
2022-01-18 18:46 ` Stefan Monnier
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