providing style from dynamic XSL

[Dave Roe]

I am new to AxKit but already have some XML::LibXML/XML::LibXSLT 
experience under my belt. I am writing an application that generates 
both XML and XSL dynamically and I would like to use AxKit to process 
it for me. Although I have looked at XSP and taglibs, I believe the 
approach I should take instead is to write a custom Provider class. 
This Provider will be responsible for providing the XML (looks simple 
enough to handle this using get_strref()), but providing the dynamic 
XSL looks tricky.

Having browsed the list archive, I can see that people have been 
interested in dynamic pipelines as such, but the most dynamic I have 
seen is the HowTo that uses "if" attributes to conditionally processing 
existing documents. The code for Provider::CGI/DOM/OpenOffice doesn't 
do much WRT get_styles(), although the AxKit::Provider docs are clear 
on what it should return:

<?xml-stylesheet type="text/xsl" href="/tests/test1.xsl"?>

produces:

$VAR1 = 'styles';
$VAR2 = [
  {
    'media' => 'screen',
    'href' => '/tests/test1.xsl',
    'title' => '#default',
    'type' => 'text/xsl',
    'alternate' => 'no',
    'module' => 'Apache::AxKit::Language::LibXSLT'
  }
];
It seems to me that what I want to be able to do is handle the call to 
get_styles(), returning one or more entries like the above except href 
=> 'file_on_disk' would be replaced with, ideally, the 
XML::LibXML::Document I have created that contains the dynamic XSL. Is 
there an alternative to href that will do that, or perhaps an axkit: 
URI?

AxKit::Cache looks interesting, in that I might be able to place my 
dynamic XSL in the cache in the hope that it will be picked up during 
get_styles(). Is this approach feasible?

On a side note, can anyone confirm the following: taglibs work with 
XSP, and once you enter the XSL pipeline stage, taglib elements will 
not behave as you might expect. Or more specifically, using taglib 
elements in XSL effectively re-introduces XSP into the pipeline, 
therefore causing the XSP to be re-compiled before being used. Simply 
put, should I think of taglib elements as something to be used in XSP 
and not XSL?

Regards,
/dave
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