On 2013–02–02 Ingo Hohmann wrote: > I'm trying to have the date in a layer in an environment. In the > text using the environment, I want to be able to set the date. > If the date is not set, the current date should be used, otherwise > the set date. > This is what I've tried, but it is always the currentdate, that is > displayes.
You are trying to use the date before it is defined. You can use a
two-pass mechanism:
\define\mydate{\datasetvariable{mydata}{date}{date}}
\definelayer
[firstpage]
\setlayer
[firstpage]
[hoffset=14cm, voffset=3.5cm]
{\framed[frame=on, width=4cm, height=2cm]{%%
\doiftextelse{\mydate}{\mydate}{\currentdate}}}
\setupbackgrounds
[page]
[background=firstpage]
\definedataset
[mydata]
\setdataset
[mydata]
[date]
[date=2011-11-11]
\starttext
\doiftextelse{\mydate}{\mydate}{\currentdate}
\stoptext
Marco
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