On 11/16/22 19:56, mf via ntg-context wrote:
local ch_id = t.at["ch:id"]
You're right, of course, using a colon was a stupid idea. When I replace
it with an underscore, you can see that both are in fact identical:
\startbuffer[test]
<document>
<topics>
<topic t_id="test1">
<title>This is the first test</title>
<date>22/11/16</date>
</topic>
<topic t_id="test2">
<title>This is the second test</title>
<date>22/11/17</date>
</topic>
</topics>
<chapters>
<chapter ch_id="test1">
<content>
This will be the content of the <emph>first</emph> chapter.
</content>
</chapter>
<chapter ch_id="test2">
<content>
This will be the content of the <emph>second</emph> chapter.
</content>
</chapter>
</chapters>
</document>
\stopbuffer
\startxmlsetups xml:testsetups
\xmlsetsetup{#1}{*}{-}
\xmlsetsetup{#1}{document|chapters|chapter|content|emph}{xml:*}
\stopxmlsetups
\xmlregistersetup{xml:testsetups}
\startxmlsetups xml:document
\xmlflush{#1}
\stopxmlsetups
\startxmlsetups xml:chapters
\xmlflush{#1}
\stopxmlsetups
\startxmlsetups xml:chapter
\xmlfunction {#1} {chapter}
% \xmlflush {#1}
\stopxmlsetups
\startxmlsetups xml:chapter:content
\xmltext {#1} {content}
\stopxmlsetups
\startxmlsetups xml:emph
{\em \xmlflush {#1}}
\stopxmlsetups
\startluacode
function xml.functions.chapter (t)
local chapter_id = t.at.ch_id
local other_chapter_id = t.at["ch_id"]
context (chapter_id)
context.par ()
context (other_chapter_id)
context.par ()
local metadata = xml.filter (t,
'../../topics/topic[@t:id=="%s"]', ch_id)
print (inspect(metadata))
lxml.command(t, ".", "xml:chapter:content")
context.par ()
end
\stopluacode
\starttext
\xmlprocessbuffer{main}{test}{}
\stoptext
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