On 3-8-2012 08:35, Olivier Binda wrote:
On 02/08/2012 17:43, Aditya Mahajan wrote:
On Thu, 2 Aug 2012, Olivier Binda wrote:
1) does lxml.att("#1","some tag") really work ?
I don't know, but please provide a complete minimal example.
\startxmlsetups xml:test
\xmlsetsetup{maths}{c}{xml:*}
\stopxmlsetups
\xmlregistersetup{xml:test}
\startxmlsetups xml:c
\ctxlua{
title = "test="..lxml.att("#1","title")
context(title)}%
\stopxmlsetups
\starttext
test : \xmlprocessdata {maths}{<?xml version='1.0' standalone='yes?><c
title="My title"></c>} {}
\stoptext
\endinput
Context gives the "can't concatenate with a nil value" Luatex error
when processing this snipet...but if I ignore the error, the pdf output
is okey
the functions in the lxml namespace already print to context and return
no value so you effectively appends nil which is invalid
also, when used in a context run the default serializer is also piping
to context so if you want otherwise you need to prefix with xml://
(which is an indication that in principle there can be many variants)
here are some valid solutions (whatch the lxml.id):
\startxmlsetups xml:test
\xmlsetsetup{#1}{c}{xml:*}
\stopxmlsetups
\xmlregistersetup{xml:test}
\startxmlsetups xml:c
\ctxlua{title = "test=" ..
xml.filter(lxml.id("#1"),"xml://./attribute(title)") context(title)}
\par
\ctxlua{context("test=")
xml.filter(lxml.id("#1"),"./attribute(title)")}
\par
\ctxlua{context("test=") lxml.att("#1","title")}
\stopxmlsetups
\starttext
\xmlprocessdata
{maths}
{<?xml version='1.0' standalone='yes?><c title="My title"></c>}
{}
\stoptext
You can wikify this ...
Hans
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