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