GNU bug report logs - #62563
[FR] Expose `interactive' arg handling as an Elisp function

Previous Next

Full log

Message #17 received at 62563-done <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefankangas <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Ruijie Yu <ruijie <at> netyu.xyz>, 62563-done <at> debbugs.gnu.org
Subject: Re: bug#62563: [FR] Expose `interactive' arg handling as an Elisp
 function
Date: Mon, 11 Sep 2023 16:54:50 -0700

Eli Zaretskii <eliz <at> gnu.org> writes:

>> Date: Fri, 31 Mar 2023 15:27:47 +0800
>> From:  Ruijie Yu via "Bug reports for GNU Emacs,
>>  the Swiss army knife of text editors" <bug-gnu-emacs <at> gnu.org>
>>
>> I find myself sometimes needing to manually write code that do the same
>> job as the string-form `interactive' would do, like "read for an
>> existing file name" (the "f" form), etc.  This happens because I want to
>> do the following conversion.
>>
>> --8<---------------cut here---------------start------------->8---
>> (defun foo (fname)
>>   (interactive "f")
>>   (ignore fname))
>>
>> (defun foo (fname bar)
>>   (interactive
>>    (list (simulate-interactive-f)
>>          (get-bar)))
>>   (ignore fname bar))
>> --8<---------------cut here---------------end--------------->8---
>>
>> In short, this is useful when I need to add an interactive argument that
>> is not already covered by interactive codes, so I have to use the more
>> verbose interactive list form.
>
> I don't think I understand the rationale, so please tell more.  The
> interactive spec can be used like this:
>
>   (interactive "bBuffer to rename: \nsRename buffer %s to: ")
>
> So basically, you can prompt for anything using the 's' descriptor and
> the following prompt string with %-constructs.  In what use cases is
> this not enough, so much so that it would require exposing the guts of
> this to Lisp?

More information was requested, but none was given within 6 months, so
I'm closing this bug.  If this is still an issue, please reply to this
email (use "Reply to all" in your email client) and we can reopen the
bug report.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.