xml and lua again

["Thomas A. Schmitz" <thomas.schmitz@uni-bonn.de>]

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(framestate)
	  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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