* Test for existence of a Ctx buffer by Lua
@ 2011-01-28 14:13 Procházka Lukáš Ing. - Pontex s. r. o.
2011-01-28 15:11 ` Hans Hagen
0 siblings, 1 reply; 2+ messages in thread
From: Procházka Lukáš Ing. - Pontex s. r. o. @ 2011-01-28 14:13 UTC (permalink / raw)
To: ConTeXt
Hello,
how to test by Lua whether a Ctx buffer exists?
---
\startbuffer[A]
Aaa aaa
\stopbuffer
\starttext
\getbuffer[A]
Test
%\getbuffer[NonExisting]
Vvv
\stoptext
---
To get something like 'context.buffers.A' -> no-nil and 'context.buffers.NonExisting' -> nil?
Best regards,
Lukas
--
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz]
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Test for existence of a Ctx buffer by Lua
2011-01-28 14:13 Test for existence of a Ctx buffer by Lua Procházka Lukáš Ing. - Pontex s. r. o.
@ 2011-01-28 15:11 ` Hans Hagen
0 siblings, 0 replies; 2+ messages in thread
From: Hans Hagen @ 2011-01-28 15:11 UTC (permalink / raw)
To: mailing list for ConTeXt users
On 28-1-2011 3:13, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
> Hello,
>
> how to test by Lua whether a Ctx buffer exists?
\doifelsebuffer
> ---
> \startbuffer[A]
> Aaa aaa
> \stopbuffer
>
> \starttext
> \getbuffer[A]
> Test
> %\getbuffer[NonExisting]
> Vvv
> \stoptext
> ---
>
> To get something like 'context.buffers.A' -> no-nil and
> 'context.buffers.NonExisting' -> nil?
>
> Best regards,
>
> Lukas
>
>
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___________________________________________________________________________________
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
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archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
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