* [NTG-context] XML: flush to lua function
@ 2023-09-11 14:47 denis.maier
2023-09-12 6:56 ` [NTG-context] " denis.maier
0 siblings, 1 reply; 3+ messages in thread
From: denis.maier @ 2023-09-11 14:47 UTC (permalink / raw)
To: ntg-context
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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
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^ permalink raw reply [flat|nested] 3+ messages in thread
* [NTG-context] Re: XML: flush to lua function
2023-09-11 14:47 [NTG-context] XML: flush to lua function denis.maier
@ 2023-09-12 6:56 ` denis.maier
2023-09-12 7:52 ` Taco Hoekwater
0 siblings, 1 reply; 3+ messages in thread
From: denis.maier @ 2023-09-12 6:56 UTC (permalink / raw)
To: ntg-context
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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 <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
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[-- Attachment #2: Type: text/plain, Size: 495 bytes --]
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage : https://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : https://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 3+ messages in thread
* [NTG-context] Re: XML: flush to lua function
2023-09-12 6:56 ` [NTG-context] " denis.maier
@ 2023-09-12 7:52 ` Taco Hoekwater
0 siblings, 0 replies; 3+ messages in thread
From: Taco Hoekwater @ 2023-09-12 7:52 UTC (permalink / raw)
To: mailing list for ConTeXt users
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, <denis.maier@unibe.ch> <denis.maier@unibe.ch> 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 <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!
>
> maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
> webpage : https://www.pragma-ade.nl / http://context.aanhet.net
> archive : https://bitbucket.org/phg/context-mirror/commits/
> wiki : https://contextgarden.net
> ___________________________________________________________________________________
—
Taco Hoekwater E: taco@bittext.nl
genderfluid (all pronouns)
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage : https://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : https://contextgarden.net
___________________________________________________________________________________
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2023-09-11 14:47 [NTG-context] XML: flush to lua function denis.maier
2023-09-12 6:56 ` [NTG-context] " denis.maier
2023-09-12 7:52 ` Taco Hoekwater
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