ntg-context - mailing list for ConTeXt users
 help / color / mirror / Atom feed
From: Wolfgang Schuster <schuster.wolfgang@googlemail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: \doif... and Lua
Date: Fri, 25 Mar 2011 13:25:52 +0100	[thread overview]
Message-ID: <56EE34D2-65AD-4DA5-A849-A635B65652E6@googlemail.com> (raw)
In-Reply-To: <op.vswehwcmtpjj8f@lpr>


Am 25.03.2011 um 13:04 schrieb Procházka Lukáš Ing. - Pontex s. r. o.:

> Hello,
> 
> is it possible to use a block of context code depending on a value of a Lua variable?
> 
> I tried something like:
> 
> ---
> \starttext
>  \directlua{test = true}
>  %\directlua{test = 5}
>  %\directlua{test = "a"}
> 
>  \doifempty{\directlua{return test}}
>  %\doifempty{\directlua{test}}
>    {Yes}
>    {No}
> \stoptext
> ---
> 
> But this gives me always "No".
> 
> - I'm not sure if this is a good way, and whether attempt to use \doif(...) macro is a good idea at all.
> 
> Any (better) solution?


\starttext

\ctxlua{test = true}

Test is \ctxlua{commands.testcase(test)}{True}{False}.

\ctxlua{test = false}

Test is \ctxlua{commands.testcase(test)}{True}{False}.

\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://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


  reply	other threads:[~2011-03-25 12:25 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-25 12:04 Procházka Lukáš Ing. - Pontex s. r. o.
2011-03-25 12:25 ` Wolfgang Schuster [this message]
2011-03-25 13:24   ` Procházka Lukáš Ing. - Pontex s. r. o.

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=56EE34D2-65AD-4DA5-A849-A635B65652E6@googlemail.com \
    --to=schuster.wolfgang@googlemail.com \
    --cc=ntg-context@ntg.nl \
    /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).