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Hi, I'm typesetting an XML document where the links to the images contain spaces which are encoded as %20 <graphic xlink:href="a%20filename%20with%20spaces.jpg"/> Using this works in cases without spaces: \startxmlsetups xml:fig:graphic \externalfigure[\xmlatt{#1}{xlink:href}] \stopxmlsetups This also works for normal spaces, but is there a way to decode/expand the %20s to regular spaces? I've tried with some Lua, but I don't really know how to pass data around. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \startluacode function replaceSpaces(s) result = string.gsub(s, "%%20", " ") context(result) end \stopluacode \define[1]\replaceSpaces{\ctxlua{replaceSpaces("#1")}} \startxmlsetups xml:fig:graphic \externalfigure[\replaceSpaces{\xmlatt{#1}{xlink:href}}] \stopxmlsetups %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Any hints, why this does not work?` Also, maybe there's a simpler way for this kind of scenario? Best, Denis