Hi, xml.text(t) is safer than directly accessing t.dt[1]. Note: you may need to strip some XML tags from that content. If the element is not straight-up data but has nested elements, then this will return the full xml representation instead: <title>A short title</title> => ‘A short title' <title><A short title></title> => ‘<A short title>' <title><A <b>short</b> title></title> => '<title><A <b>short</b> title></title>' Best wishes, Taco

On 12 Sep 2023, at 08:56, wrote:

Ok, I’ve found a way, see below. But maybe someone has some nice lua (or other) tricks to share… (I’m not sure accessing t.dt[1] is particularly safe when operating on nested structures.) Best, Denis \startbuffer[test] <?xml version="1.0" encoding="UTF-8"?> <doc> <chapter> <title>A short title</title> <p>asdf asdf asdf jklö jklö jklö</p> </chapter> <chapter> <title>A longer title bla bla bla bla bla bla bla bla</title> <p> asdf asdf asdf jklö jklö jklö </p> </chapter> </doc> \stopbuffer \startxmlsetups xml:test \xmlsetsetup{#1}{*}{-} \xmlsetsetup{#1}{doc|chapter|p}{xml:*} \stopxmlsetups \xmlregisterdocumentsetup{test}{xml:test} \startxmlsetups xml:doc \xmlflush{#1} \stopxmlsetups \setuphead[chapter][expansion=yes] % make sure the stuff gets expanded on time \startxmlsetups xml:chapter \startchapter [ title={\xmlfilter{#1}{/title/command(xml:chapter:title)}}, marking={\xmlfilter{#1}{/title/command(xml:chapter:title:marking)}}, ] \xmlflush{#1} \stopchapter \stopxmlsetups \startxmlsetups xml:p \xmlflush{#1}\par \stopxmlsetups \startluacode function xml.functions.getMarking(t) _,n = t.dt[1]:gsub("%S+","") if n > 10 then local words = {} for word in t.dt[1]:gmatch("%S+") do table.insert(words, word) end local resWords = {} resWords = { unpack( words, 1, 7 ) } res = table.concat(resWords, " ") .. " …" else res = t.dt[1] end context(res) end \stopluacode \startxmlsetups xml:chapter:title:marking \xmlfunction{#1}{getMarking} \stopxmlsetups \startxmlsetups xml:chapter:title \xmlflush{#1} \stopxmlsetups \setupheadertexts[chapter] \starttext \xmlprocessbuffer{test}{test}{} \stoptext Von: denis.maier@unibe.ch Gesendet: Montag, 11. September 2023 16:47 An: ntg-context@ntg.nl Betreff: [NTG-context] XML: flush to lua function Hi, I have the following xml setup with a lua function: \startluacode function markingLength(s) _,n = s:gsub("%S+","") if n > 3 then context("yes" .. " …") else context("no") end end \stopluacode \startxmlsetups xml:ink:ink-title:marking %\ctxlua{markingLength(\xmlflush{#1})} % does not work \ctxlua{markingLength{"1 2 3 4"}} \stopxmlsetups While the function works, I cannot use xmlflush here. How can I properly pass the xml content to the lua function? Best, Denis ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

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