From: Thorsten Jolitz <tjolitz@googlemail.com>
To: help-gnu-emacs@gnu.org
Subject: Hash tables - how to look up values?
Date: Wed, 04 Jul 2012 15:48:09 +0200 [thread overview]
Message-ID: <873957d4di.fsf@googlemail.com> (raw)
Hi List,
I would need a function that does the opposite of
,--------------------
| (gethash key table)
`--------------------
i.e. something like
,-------------------
| (getkey val table)
`-------------------
that returns the corresponding key of a known (string) value in a hash
table (similar to 'rassoc' for alists).
I could not find such a function - does it exist already?
--
cheers,
Thorsten
next reply other threads:[~2012-07-04 13:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-04 13:48 Thorsten Jolitz [this message]
2012-07-04 14:09 ` Hash tables - how to look up values? Teemu Likonen
2012-07-04 14:09 ` Bastien
2012-07-04 14:31 ` Thorsten Jolitz
[not found] <mailman.4023.1341409554.855.help-gnu-emacs@gnu.org>
2012-07-04 13:59 ` Pascal J. Bourguignon
2012-07-04 14:21 ` Thorsten Jolitz
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
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=873957d4di.fsf@googlemail.com \
--to=tjolitz@googlemail.com \
--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.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.