Am 22.10.2011 18:46, schrieb Thomas A. Schmitz:
> Hi all,
>
> again, I'm playing a bit with processing my xml in lua. I want a simple
> interface for processing tables (I don't need all the power and
> complexity of cals tables and want to learn something in the process).
> And I thought that collecting the setups in lua might be the easiest
> way, but so far, I haven't been successful. Here's an example:
>
> \startbuffer[test]
> <a>
> <nattable frame="on">
> <tr>
> <td>1</td>
> <td>2</td>
> <td>3</td>
> <td>4</td>
> </tr>
> <tr>
> <td>5</td>
> <td>6</td>
> <td>7</td>
> <td>8</td>
> </tr>
> </nattable>
> </a>
> \stopbuffer
>
> \startxmlsetups xml:testsetups
> \xmlsetsetup{main}{a|nattable|tr|td|}{xml:*}
> \stopxmlsetups
>
> \xmlregistersetup{xml:testsetups}
>
> \startxmlsetups xml:a
> \xmlflush{#1}
> \stopxmlsetups
>
> \startxmlsetups xml:nattable
> \startluacode
> framestate = lxml.att("#1", "frame")
context(type(framestate))
Here is the problem. The function lxml.att() only prints the attribute,
but returns nothing (framestate = nil). I looked into an old example of
mine where I played with attributes, but it's totally outdated (uses
xml.filters, now mkii only).
Sorry, no solution (goat milk was out).
Peter
[lxml-tex.lua]
function lxml.attribute(id,pattern,a,default)
local collected = xmlapplylpath(getid(id),pattern)
if collected then
attribute(collected,a,default)
end
end
local function attribute(collected,a,default)
if collected and #collected > 0 then
local at = collected[1].at
local str = (at and at[a]) or default
if str and str ~= "" then
contextsprint(notcatcodes,str)
end
elseif default then
contextsprint(notcatcodes,default)
end
end
> context(framestate)
does nothing
> context(true)
> context.placefigure( { "here" }, "none" , function()
> context.setupTABLE( { "frame=on" } )
> context.bTABLE()
> context.xmlflush("#1")
> context.eTABLE()
> end)
> \stopluacode
> \stopxmlsetups
>
> \startxmlsetups xml:tr
> \startluacode
> context.bTR()
> context.xmlflush("#1")
> context.eTR()
> \stopluacode
> \stopxmlsetups
>
> \startxmlsetups xml:td
> \startluacode
> context.bTD()
> context.xmlflush("#1")
> context.eTD()
> \stopluacode
> \stopxmlsetups
>
> \starttext
> \xmlprocessbuffer{main}{test}{}
> \stoptext
>
> question: I have the value "on" in the lua variable "framestate." But
> how can I pass this on to the line
> context.setupTABLE( { "frame=on" } )?
> I tried something like
> context.setupTABLE( { "frame=" .. framestate } )
> but that doesn't work. Any suggestions?
>
> Thomas
> ___________________________________________________________________________________
>
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> to the Wiki!
>
> maillist : ntg-context@ntg.nl /
> http://www.ntg.nl/mailman/listinfo/ntg-context
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> archive : http://foundry.supelec.fr/projects/contextrev/
> wiki : http://contextgarden.net
> ___________________________________________________________________________________
>
>
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
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