Re: [xsl] XSLT 3.0 Output and Serialization: Native XSLT message and error listeners?

Subject: Re: [xsl] XSLT 3.0 Output and Serialization: Native XSLT message and error listeners?
From: Philip Fearon <pgfearo@xxxxxxxxxxxxxx>
Date: Mon, 21 Jan 2013 21:41:46 +0000
XProc does (as I understand - I've only recently started using
Calabash) at least already provide some means to process xsl:message
output - as stated in the spec at

 it is common for all xsl:message output from the XSLT component to
appear on the error output port

- it's unclear from this whether xsl:message output is somehow
converted to well-formed XML by the XProc processor (I'm guessing it
should be), and perhaps XProc 2 should address this - but given my
unfamiliarity with XProc I'm not quite ready to pursue this at the

However, instead of an XProc solution, I was rather hoping that with
streaming XSLT there would be a neat way to bind an XSLT 3.0 template
to the message stream of one or more transforms. My standard XSLT
test-harness exploits multi-threaded processing - providing a
real-time count of errors and messages but results are only merged
once all tests are complete. I feel it would be much more elegant,
portable and maintainable if more of this test-harness could be coded
in XSLT instead of the current mix of C# and Java.



On Mon, Jan 21, 2013 at 8:46 PM, Liam R E Quin <liam@xxxxxx> wrote:
> On Mon, 2013-01-21 at 20:05 +0000, Philip Fearon wrote:
>> Dear list,
>> With XSLT 1.0 and 2.0 there is (so far as I know) no specified way of
>> assigning a 'native' XSLT listener to the message output from
>> xsl:message instructions or to the error output.
> This might be an interesting use case for XProc 2. Feel free to submit
> it to the XProc Working Group (let me know if you need help negotiating
> the W3C Maze to do that).
> Liam
> --
> Liam Quin - XML Activity Lead, W3C,
> Pictures from old books:
> Ankh: freenode/#xml

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