From: Barry Margolin <barmar@alum.mit.edu>
To: help-gnu-emacs@gnu.org
Subject: Re: problem with elisp
Date: Wed, 08 Oct 2008 15:25:02 -0400 [thread overview]
Message-ID: <barmar-D03F74.15250208102008@news.motzarella.org> (raw)
In-Reply-To: mailman.606.1223492748.25473.help-gnu-emacs@gnu.org
In article <mailman.606.1223492748.25473.help-gnu-emacs@gnu.org>,
Nikolaj Schumacher <me@nschum.de> wrote:
> Seweryn Kokot <sewkokot@gmail.com> wrote:
>
> > Could you explain to me why the following function doesn't work in the first
> > version and when swapping line
> > (let ((string-temp (make-temp-name "")))
> > with
> > (let ((string-temp "@temp@"))
> > it works correctly?
>
> Could you specify what's not working? It seems to work for me.
>
> `make-temp-name' is not a good idea for what you're doing, though.
> While the same string will never be returned twice, there is no
> guarantee that the string doesn't exist in your buffer. So make sure
> you use a very unique prefix. On the other hand, there's no added
> benefit from using `make-temp-name' instead of just the prefix.
Unless you try to use the function in the buffer containing the
function's source code, since the prefix is guaranteed to exist in that
buffer. If you use make-temp-name with a suitably random prefix, the
chance of an unintended match should be negligible.
--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
*** PLEASE don't copy me on replies, I'll read them in the group ***
next prev parent reply other threads:[~2008-10-08 19:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-08 18:57 problem with elisp Seweryn Kokot
2008-10-08 19:05 ` Nikolaj Schumacher
2008-10-08 20:04 ` Seweryn Kokot
2008-10-08 20:33 ` Nikolaj Schumacher
2008-10-09 21:23 ` Seweryn Kokot
[not found] ` <mailman.606.1223492748.25473.help-gnu-emacs@gnu.org>
2008-10-08 19:25 ` Barry Margolin [this message]
[not found] <mailman.604.1223491809.25473.help-gnu-emacs@gnu.org>
2008-10-08 18:59 ` Joost Kremers
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=barmar-D03F74.15250208102008@news.motzarella.org \
--to=barmar@alum.mit.edu \
--cc=help-gnu-emacs@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).