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RE: Serialization of XDM - Use cases / Proposal

  • From: "Jim Tivy" <jimt@bluestream.com>
  • To: "'David A. Lee'" <dlee@calldei.com>
  • Date: Sat, 19 Sep 2009 10:48:37 -0700
RE: Serialization of XDM - Use cases / Proposal
Play the video

Yes, from http://www.w3.org/TR/xslt-xquery-serialization I think my use case is handled by producing a serialization of an "external general parsed entity" which can have (element)* in a form such as:

 

<div>

</div>

<div>

</div>

 

There is some confusing text, however in 5. XML Output Method where it describes the "reconstructed tree" as different from the result tree:

 

"if the document was produced by adding a document wrapper, as described above, then it will contain an extra doc element as the document element."

 

I did not see in the spec where adding a <doc> tag was part of serialization - rather it was just shown as a way of describing the use of an external general parsed entity.

 

Jim

 

From: David A. Lee [mailto:dlee@calldei.com]
Sent: Friday, September 18, 2009 6:21 PM
To: Jim Tivy
Cc: xml-dev@lists.xml.org; 'XProc Dev'
Subject: Re: Serialization of XDM - Use cases / Proposal

 

This spec describes concatenation of node sequences such that they are parseable as entities.

In the case you describe I think that fits well.
Atleast in my reading

5 XML Output Method

This describes serializing a sequence of nodes.  I think this spec would fit for your use case.
Atleast that is my read, I admit I have a hard time following the reading of this spec (not to blame the authors, I just have a hard time understanding it all)



David A. Lee
dlee@calldei.com  
http://www.calldei.com
http://www.xmlsh.org
812-482-5224



Jim Tivy wrote: 

David
 
I do not see in this spec where it defines the serialization of a sequence.
I was not talking about concatenating "nodes" but rather concatenation of
text from a sequence after it was serialized.
 
Jim
 
-----Original Message-----
From: David A. Lee [mailto:dlee@calldei.com] 
Sent: Friday, September 18, 2009 4:46 PM
To: Jim Tivy
Cc: xml-dev@lists.xml.org; 'XProc Dev'
Subject: Re:  Serialization of XDM - Use cases / Proposal
 
This is a case, if I'm reading it properly, where the current XDM 
Serializaiton spec may serve perfectly.
http://www.w3.org/TR/xslt-xquery-serialization/
 
That would concatenate the result nodes such that it is serialized 
equivalently to an external entity.
 
 
 
David A. Lee
dlee@calldei.com  
http://www.calldei.com
http://www.xmlsh.org
812-482-5224
 
 
 
Jim Tivy wrote:
  
Here is a better description of the use case I have:
 
There are a number "templating" technologies in use for defining web
    
pages;
  
for example PHP, ASP and JSP.  These templating languages have been very
successful.  When these templates "execute", they produce an HTML page as
    
an
  
HTTP response.  These templating technologies allow you to mix html tags
with program logic to create web pages dynamically.  These templating
languages, as a rule, are text based in that they define a page by
concatenating HTML chunks of text together.  For example, in a JSP file,
sometimes these HTML chunks are literal text and other times they are
calculated and "injected inline" into the output - always as text.
 
It should be possible to inject an XDM text serialization (a sequence of
<div> tags and children, for instance) as returned by
getPipelineSerialization () call in this simple JSP page shown below: 
 
<html>
   <body>
      <% out.write(getPipelineSerialization("mypipeline")); %>
   </body>
</html>
 
examples of jsps:
 
http://java.sun.com/products/jsp/html/jspbasics.fm.html
 
-----Original Message-----
From: Jim Tivy [mailto:jimt@bluestream.com] 
Sent: Friday, September 18, 2009 3:12 PM
To: 'David A. Lee'
Cc: xml-dev@lists.xml.org; talk@x-query.com; 'XProc Dev'
Subject: RE:  Serialization of XDM - Use cases / Proposal
 
Hi David
 
We use XDM serialization - for a simple sequence.  We have a pipeline that
we execute and the last node is XPath /html/body/* of an upstream html
document - we call it html core output.  We use this in JSP (java server
pages) code where we wish to establish the css files and meta tags but
    
serve
  
up the html content from the pipeline.
 
If you like I can write this up in your wiki.
 
Jim
 
 
 
-----Original Message-----
From: David A. Lee [mailto:dlee@calldei.com] 
Sent: Friday, September 18, 2009 2:07 PM
Cc: xml-dev@lists.xml.org; talk@x-query.com; XProc Dev
Subject: Re:  Serialization of XDM - Use cases / Proposal
 
I have created a first pass at documenting the problem of XDM 
Serialization and created some use cases.
I would love any feedback or comments.  This is on a new wiki I created 
for this purpose.  If you would like to comment directly on the wiki 
please reply to me and I will give you the invite code (due to the sad 
state of affairs anonymous comments and editing are disabled due to 
wiki-spam-bots.  I've found spam within 5 minutes of opening a public 
wiki ... <sigh> )
 
 
http://xml.calldei.com/XDMSerialize
 
I have NOT included a proposal for a format yet, I'd like to discuss the 
intent and use cases first before putting up a straw-man proposal.
 
Thank you for any contribution !
 
I've CC'd this to xproc-dev because one of the use cases if for 
developers and integrators with XML Pipeline processors such as XProc
 
 
David A. Lee
dlee@calldei.com  
http://www.calldei.com
http://www.xmlsh.org
812-482-5224
 
 
 
 
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