Re: xml, language, btx problems

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

On 06/17/2018 09:37 PM, Pablo Rodriguez wrote:
> Hi Thomas,
> 
> this may work in your case:
> 
>   \startxmlsetups xml:document
>       \mainlanguage[\xmlatt{#1}{language}]
>       \doifmodeelse{**en}
> 	{\usebtxdefinitions [english]}
> 	{\usebtxdefinitions [deutsch]}
>   \stopxmlsetups
> 
> I have just checked in with another document and it worked as expected.

Thank you for your suggestion, Pablo, but this is just a slightly 
different syntax to express the same test, this doesn't change anything. 
Maybe this document is clearer in explaining my problem (and results are 
identical with the \doifmodeelse syntax):

\startbuffer[test]
<document language="de">
    test
</document>
\stopbuffer

\startxmlsetups xml:testsetups
	\xmlsetsetup{\xmldocument}{document}{xml:*}
\stopxmlsetups

\xmlregistersetup{xml:testsetups}

\startxmlsetups xml:document
	\mainlanguage[\xmlatt{#1}{language}]
	Language settings work correctly here:

	\doifelse {\currentmainlanguage} {de}
	{\color [blue] {Deutsch}}
	{\color [red]  {English}}\par
	\xmlflush{#1}
\stopxmlsetups

\starttext
This is where the btx set has to be loaded, and language settings do not 
work as needed:

	\doifelse {\currentmainlanguage} {de}
	{\color [blue] {Deutsch}}
	{\color [red]  {English}}\par

\xmlprocessbuffer{main}{test}{}

\stoptext

Is there any way to set the language before the <document> element is 
processed? I experimented with this

\startxmlsetups xml:language:initiate
	\mainlanguage[\xmlattribute{\xmldocument}{root::/document}{language}]
\stopxmlsetups

\xmlbeforedocumentsetup{\xmldocument}{xml:language:initiate}{xml:testsetups}

but this doesn't work, and I'm not sure I'm using it the right way.

All best

Thomas
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