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XProc Minutes 31 Jan 2013

From: Norman Walsh <ndw@nwalsh.com>
Date: Thu, 31 Jan 2013 10:03:54 -0600
To: public-xml-processing-model-wg@w3.org
Message-ID: <m2vcadjq51.fsf@nwalsh.com>
See http://www.w3.org/XML/XProc/2013/01/31-minutes

[1]W3C

                                   - DRAFT -

                            XML Processing Model WG

Meeting 226, 31 Jan 2013

   [2]Agenda

   See also: [3]IRC log

Attendees

   Present
           Norm, Jim, Vojtech, Henry, Alex

   Regrets

   Chair
           Norm

   Scribe
           Norm

Contents

     * [4]Topics

         1. [5]Accept this agenda?
         2. [6]Accept minutes from the previous meeting?
         3. [7]Next meeting: 21 Feb 2013
         4. [8]Change of meeting time
         5. [9]Review of open action items
         6. [10]XML Processor Profiles
         7. [11]Option inheritance
         8. [12]Document metadata in pipelines
         9. [13]Handling non-XML documents
        10. [14]Discussion of XProcathon at XML Prague
        11. [15]Any other business?

     * [16]Summary of Action Items

   --------------------------------------------------------------------------

  Accept this agenda?

   -> [17]http://www.w3.org/XML/XProc/2013/01/31-agenda

   Accepted

  Accept minutes from the previous meeting?

   -> [18]http://www.w3.org/XML/XProc/2013/01/24-minutes

   Accepted

  Next meeting: 21 Feb 2013

   Norm: Note that's a Thursday; still waiting on Liam for the time slot

   No regrets heard.

  Change of meeting time

   Norm: See above :-)

  Review of open action items

   Norm: I think A-210-03 is done.

  XML Processor Profiles

   Norm summarizes the changes

   Norm: I believe that covers all the changes requested by commentors.

   Jim: I tried to trace them back and I think it's a good response.

   Norm: Ok, I'm going to point Michael to this draft.

  Option inheritance

   Vojtech leads us through
   [19]http://lists.w3.org/Archives/Public/public-xml-processing-model-wg/2013Jan/0022.html

   Norm: Thanks Vojtech. It's an interesting idea. I can't quite decide if
   I'm comfortable with it or not.

   Vojtech: Me neither.
   ... The 'autobind' attribute could also be on the step.
   ... But that introduces even more magic, the user has less control than
   with the top-down inheritence

   Norm: I wonder if we can align it with XSLT "tunnel" parameters.

   Norm and Henry have differing recollections of how tunnel parameters work.

   Norm: Any other opinions on the inheritance

   Jim: What happens when you bind a variable with something like
   fn:current-dateTime(); does that invoke when the time it gets used? Or at
   the declaration.

   Vojtech: When it's used is my idea.

   Norm: I don't think you can tell. Whatever value it gets, that's the value
   it gets everywhere.

   Vojtech: Right.

   Norm: It sounds like we need to think about this a little bit. Let's take
   it up next time.

   Some discussion of what use cases this covers. Mostly the parameter input
   port magic.

   Norm points to examples in
   [20]http://www.w3.org/XML/XProc/2012/11/01-minutes

   Vojtech: Those examples are mostly about how you construct the map, they
   didn't seem relevant.

  Document metadata in pipelines

   Norm: I said I'd leave this on the agenda, but I don't have anything new
   to contribute this week.

   No one else does either, apparently

  Handling non-XML documents

   Alex: I think one thing that's essential for the approach that I was
   advocating is a resource manager.

   Norm: It's not a deeply complicated resource manager is it?

   Vojtech: Is it something that's visible and controllable by the pipeline
   author?

   Alex: No, I think it's for the spec. We have to be able to speak about how
   resources are stored with an opaque URI.

   Vojtech: You mean we should say things like, for example, if your pipeline
   accesses the same URI twice at different times you should get the same
   data?

   Alex: That's a fine point. Say you get an image with an http-request. The
   result is a c:data with an href you can resolve. Now in another step down
   the way, you get that element. You have to be able to get that image back
   from somewhere, I'm calling that somewhere the 'resource manager'.

   Norm: I don't think it's that complicated. Pipeline authors can't control
   the 'resource manager'.

   Henry: The simplest possible but no simpler thing is what we're looking
   for. You have to speak about locking, read/write, serialization,
   sequencing, etc.
   ... It does seem to make sense to add to that as a strategic question,
   whether we should take the opportunity to implement the XSLT/XQuery
   constraint.
   ... I think we should address that question.

   Norm: I think the XSLT folks are relaxing that constraint in some cases,
   where they need to for streaming.
   ... WRT Alex's question about existing steps, I think we may need a new
   c:binary element or something.

   Norm mumbles a bit about when you want to operate on the element and when
   you want to operate on the data

  Discussion of XProcathon at XML Prague

   Jim: At XML Prague, in the morning of the pre-conference day, we have an
   hour and a half.

   <jfuller__> [21]http://lanyrd.com/2013/xprocathon/

   Jim: I think we're going to get some advanced users.
   ... We'll get some new users too; I'd like to bring them on board.
   ... I'm hoping to release xprocxq at the conference.
   ... The other things I want to talk about are some of the latest
   approaches we're discussing.

   Alex: I'm not sure I want to put out there our half-baked ideas. Because
   there are so many details we haven't thought through.
   ... But I think telling them our hot topics that we're trying to figure
   out is a great idea.

   Jim: I'd be happy to say here are the things we're working on for V.next
   ... The third thing I want to do is identify some of these XProc
   activities and get them in the expath repository.
   ... And my stretch goal is to get an XProc running within eXist.

   Norm: Thanks, Jim, for the summary and for setting it up!

  Any other business?

   None heard

   Adjourned.

Summary of Action Items

   [End of minutes]

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    Minutes formatted by David Booth's [22]scribe.perl version 1.137 ([23]CVS
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    $Date: 2013-01-31 16:03:04 $

References

   1. http://www.w3.org/
   2. http://www.w3.org/XML/XProc/2013/01/31-agenda
   3. http://www.w3.org/2013/01/31-xproc-irc
   4. http://www.w3.org/XML/XProc/2013/01/31-minutes#agenda
   5. http://www.w3.org/XML/XProc/2013/01/31-minutes#item01
   6. http://www.w3.org/XML/XProc/2013/01/31-minutes#item02
   7. http://www.w3.org/XML/XProc/2013/01/31-minutes#item03
   8. http://www.w3.org/XML/XProc/2013/01/31-minutes#item04
   9. http://www.w3.org/XML/XProc/2013/01/31-minutes#item05
  10. http://www.w3.org/XML/XProc/2013/01/31-minutes#item06
  11. http://www.w3.org/XML/XProc/2013/01/31-minutes#item07
  12. http://www.w3.org/XML/XProc/2013/01/31-minutes#item08
  13. http://www.w3.org/XML/XProc/2013/01/31-minutes#item09
  14. http://www.w3.org/XML/XProc/2013/01/31-minutes#item10
  15. http://www.w3.org/XML/XProc/2013/01/31-minutes#item11
  16. http://www.w3.org/XML/XProc/2013/01/31-minutes#ActionSummary
  17. http://www.w3.org/XML/XProc/2013/01/31-agenda
  18. http://www.w3.org/XML/XProc/2013/01/24-minutes
  19. http://lists.w3.org/Archives/Public/public-xml-processing-model-wg/2013Jan/0022.html
  20. http://www.w3.org/XML/XProc/2012/11/01-minutes
  21. http://lanyrd.com/2013/xprocathon/
  22. http://dev.w3.org/cvsweb/~checkout~/2002/scribe/scribedoc.htm
  23. http://dev.w3.org/cvsweb/2002/scribe/

Received on Thursday, 31 January 2013 16:04:25 GMT

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