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
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