On 16-2-2012 07:43, Mari Voipio wrote:
I'm trying to do something that should be possible and I think
"variables" is the answer, I just can't figure out how.
attached .. (will be in test suite)
Hans
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
-----------------------------------------------------------------
% For Mari Voipio
\startluacode
local files = { }
function document.collectgraphics(pattern)
files = table.merged(files,dir.glob(pattern))
files = table.unique(files)
table.sort(files)
logs.report(string.format("graphics: %s",table.concat(files," ")))
end
function document.choosegraphic()
if #files > 0 then
context(table.remove(files, math.random(1,#files)) or "dummy")
else
context("dummy")
end
end
\stopluacode
\def\CollectGraphics[#1]{\ctxlua{document.collectgraphics("#1")}}
\def\ChooseGraphic {\ctxlua{document.choosegraphic()}}
\CollectGraphics[*.png]
\CollectGraphics[*.jpg]
\starttext
\dorecurse {10} {
\expanded{\externalfigure[\ChooseGraphic][width=4cm]}
}
\stoptext
___________________________________________________________________________________
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
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
