From: Wolfgang Schuster via ntg-context <ntg-context@ntg.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Cc: Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>
Subject: Re: Failing \doifemptyelse
Date: Thu, 23 Jun 2022 21:54:02 +0200 [thread overview]
Message-ID: <e1275c70-f626-e324-ee44-2a1b35e40128@gmail.com> (raw)
In-Reply-To: <BF59FBC2-A5E6-4819-A897-A19010C148D8@boede.nl>
Willi Egger via ntg-context schrieb am 23.06.2022 um 21:16:
> Good evening gurus!
>
> Why is the minimal example failing? i.e. executing always the else-branch?
\doifempty(else) doesn't expand the argument and any argument counts as
not empty. To satisfy the command you can expand the first argument
(\normalexpanded) or you use \doifnothing(else) which expands the argument.
\starttext
\startbuffer
\doifemptyelse{}{YES}{NO}
\doifemptyelse{\empty}{YES}{NO}
\normalexpanded{\doifemptyelse{}}{YES}{NO}
\normalexpanded{\doifemptyelse{\empty}}{YES}{NO}
\doifnothingelse{}{YES}{NO}
\doifnothingelse{\empty}{YES}{NO}
\stopbuffer
\typebuffer \getbuffer
\stoptext
Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
next prev parent reply other threads:[~2022-06-23 19:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-23 19:16 Willi Egger via ntg-context
2022-06-23 19:54 ` Wolfgang Schuster via ntg-context [this message]
2022-06-23 20:59 ` Hans Hagen via ntg-context
2022-06-23 21:00 ` Hans Hagen via ntg-context
2022-06-24 3:42 ` Wolfgang Schuster via ntg-context
2022-06-24 11:59 ` Willi Egger via ntg-context
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=e1275c70-f626-e324-ee44-2a1b35e40128@gmail.com \
--to=ntg-context@ntg.nl \
--cc=wolfgang.schuster.lists@gmail.com \
/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 NNTP newsgroup(s).