On 4-9-2012 19:40, Marco Patzer wrote:
On 2012-09-04 Martin Schröder <mar...@oneiros.de> wrote:
Hi Martin,
http://tracker.luatex.org/view.php?id=682
It seems that I just hit a very hard to solve issue which needs
not yet available support from the luatex side.
Patricks solution seems not very practical and error prone, so I
settled with this ugly but still readable workaround:
\def\cmd
{\newdimen\mydimen
\mydimen=50pt}
\starttexdefinition action
\cmd
\startluacode
if tex.dimen.mydimen < tex.dimen.textwidth then %
context("is smaller")
else %
context("is not smaller")
end %
\stopluacode
\stoptexdefinition
\action
you probably over code things ... instead of storing you can pass the
valus directly
\def\largerthantextwidth#1%
{\cldcontext
{if \number\dimexpr#1<tex.dimen.textwidth then
"is smaller"
else
"is equal or larger"
fi}}
you don't need to store in a dimen, as effectively these are just numbers:
local temp = \number\dimexpr#1 ;
...
if temp<tex.dimen.textwidth then
context("is smaller")
else
context("is equal or larger")
fi
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