From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: xml and lua again
Date: Fri, 28 Oct 2011 10:59:26 +0200 [thread overview]
Message-ID: <4EAA6EEE.7070500@wxs.nl> (raw)
In-Reply-To: <CE464E69-A9E0-471D-B309-F9D0FB55AB39@googlemail.com>
On 28-10-2011 10:35, Wolfgang Schuster wrote:
>
> Am 28.10.2011 um 08:55 schrieb Thomas A. Schmitz:
>
>> Luigi, Patrick,
>>
>> thanks for your explanations! The point of my question was: can I feed the content of tex.dimen["textwidth"] directly back to TeX, and the answer to this appears to be "no"; you need to add some unit to it (otherwise, you get an error message). Which was a bit confusing to me at first, because the name tex.dimen implies that it holds a "real" dimension, like \newdim does.
>
>
> You can get the same value in TeX when you print the value of a dimension with \number:
>
> \starttext
>
> \scratchdimen=3pt
>
> \number\scratchdimen
>
> \ctxlua{context(tex.dimen["scratchdimen"])}
>
> \stoptext
which also means that you can say \scratchcounter=\scratchdimen and test
dimens as if they are numbers ... this is why we can have
\let\ifzeropt\ifcase
which probably no one ever noticed in the source.
Hans
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next prev parent reply other threads:[~2011-10-28 8:59 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-22 16:46 Thomas A. Schmitz
2011-10-23 14:04 ` Peter Rolf
2011-10-23 14:37 ` Thomas A. Schmitz
2011-10-23 15:25 ` Peter Rolf
2011-10-23 18:15 ` Peter Rolf
2011-10-24 10:17 ` Hans Hagen
2011-10-24 12:18 ` Thomas A. Schmitz
2011-10-24 12:26 ` Hans Hagen
2011-10-24 17:00 ` Thomas A. Schmitz
2011-10-24 18:48 ` Hans Hagen
2011-10-25 9:43 ` Thomas A. Schmitz
2011-10-25 10:10 ` Wolfgang Schuster
2011-10-25 10:17 ` Hans Hagen
2011-10-25 10:27 ` Thomas A. Schmitz
2011-10-27 9:23 ` Thomas A. Schmitz
2011-10-27 9:53 ` Wolfgang Schuster
2011-10-27 10:32 ` Thomas A. Schmitz
2011-10-27 11:05 ` Hans Hagen
2011-10-28 6:23 ` Thomas A. Schmitz
2011-10-28 6:37 ` luigi scarso
2011-10-28 6:43 ` luigi scarso
2011-10-28 6:44 ` Patrick Gundlach
2011-10-28 6:55 ` Thomas A. Schmitz
2011-10-28 8:35 ` Wolfgang Schuster
2011-10-28 8:59 ` Hans Hagen [this message]
2011-10-28 8:56 ` Hans Hagen
2011-10-28 10:48 ` Thomas A. Schmitz
2011-10-28 11:23 ` luigi scarso
2011-10-28 11:42 ` Hans Hagen
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