From: Rolf Ade <rolf@pointsman.de>
To: help-gnu-emacs@gnu.org
Subject: Re: List of buffers under version control?
Date: Fri, 29 Jul 2016 00:27:07 +0200 [thread overview]
Message-ID: <877fc5v1ok.fsf@linux-qg7d.fritz.box> (raw)
In-Reply-To: mailman.2253.1469741176.26859.help-gnu-emacs@gnu.org
Drew Adams <drew.adams@oracle.com> writes:
>> Glad it helps. You could do something like this to avoid repeating the
>> calls to `vc-backend' and `buffer-modified-p':
>>
>> (if (loop for buffer in (buffer-list)
>> thereis (and (vc-backend (buffer-file-name buffer))
>> (buffer-modified-p buffer)))
>> 1
>> 0)
>
> And are you using this just as a predicate (Boolean test)?
No, or well, yes, but not in the context of other emacs lisp code. The
result value is used by some sh wrapper code around a command line tool.
So, John Mastro was exactly on track.
> If so, just:
>
> (loop for buffer in (buffer-list)
> thereis (and (vc-backend (buffer-file-name buffer))
> (buffer-modified-p buffer)))
Yes. I'm certain, John is aware.
> or
>
> (cl-some (lambda (b)
> (and (vc-backend (buffer-file-name b))
> (buffer-modified-p b)))
> (buffer-list))
Now, this is still some characters less, more compact, yes. Since I
wasn't aware of of `some' up to now ... I wonder: Is there something,
that is easily done with `some' that could not be done (at least well)
with `loop'?
next prev parent reply other threads:[~2016-07-28 22:27 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-28 0:03 List of buffers under version control? Rolf Ade
2016-07-28 4:05 ` Rusi
2016-07-28 19:31 ` Rolf Ade
2016-07-28 19:52 ` John Mastro
2016-07-28 19:58 ` John Mastro
2016-07-28 19:56 ` Marcin Borkowski
[not found] ` <mailman.2241.1469735551.26859.help-gnu-emacs@gnu.org>
2016-07-28 21:01 ` Rolf Ade
2016-07-28 21:14 ` John Mastro
2016-07-28 21:25 ` Drew Adams
[not found] ` <mailman.2253.1469741176.26859.help-gnu-emacs@gnu.org>
2016-07-28 22:27 ` Rolf Ade [this message]
[not found] ` <mailman.2252.1469740513.26859.help-gnu-emacs@gnu.org>
2016-07-28 21:52 ` Rolf Ade
2016-07-29 1:42 ` Stefan Monnier
2016-07-28 5:12 ` Yuri Khan
[not found] ` <mailman.2177.1469682795.26859.help-gnu-emacs@gnu.org>
2016-07-28 19:31 ` Rolf Ade
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