From: Taco Hoekwater <taco@elvenkind.com>
To: hajtmar@gyza.cz, mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Testing non-existent counter in Lua
Date: Tue, 22 Jun 2010 07:55:31 +0200 [thread overview]
Message-ID: <4C205053.1060803@elvenkind.com> (raw)
In-Reply-To: <4C1FDC7A.3040604@gyza.cz>
Jaroslav Hajtmar wrote:
> Hi, all.
>
> How do I know (due Lua) that the counter has not been defined in ConTeXt
> (through the command newcount)?
>
> I am trying testing :
>
> if tex.count.mycount == nil then...
>
> or
>
> if tex.count.mycount == 'error' then...
>
> then when counter isnt defined due \newcount\mycount, then test ending
> with error message.
>
> When counter is defined due
> \newcount\mycount,
> \mycount=1
>
> then test
> if tex.count.mycount == 1 then...
if token.command_name(token.create('mycount')) == 'assign_int'
and tex.count.mycount == 1 then
...
end
Best wishes,
Taco
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next prev parent reply other threads:[~2010-06-22 5:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-21 21:41 Jaroslav Hajtmar
2010-06-22 5:55 ` Taco Hoekwater [this message]
2010-06-22 6:35 ` Jaroslav Hajtmar
2010-06-22 8:39 ` Taco Hoekwater
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