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RE: Processing and Serialization of FIXED attributes

• From: "Jim Tivy" <jimt@bluestream.com>
• To: "'George Cristian Bina'" <george@oxygenxml.com>,"'Michael Kay'" <mike@s...>
• Date: Thu, 13 Jun 2013 13:12:09 -0700

Thanks George

That looks very promissing.

cheers
Jim

> -----Original Message-----
> From: George Cristian Bina [mailto:george@oxygenxml.com]
> Sent: June-11-13 6:22 AM
> To: Michael Kay
> Cc: Jim Tivy; xml-dev@lists.xml.org
> Subject: Re:  Processing and Serialization of FIXED attributes
> 
> Hi Mike,
> 
> I think Jim wants this on the serialization part, while -expand:off seems
to apply
> to loading a document. He needs the values for processing the document but
> when the processing is done he does not want to save values that come from
> the DTD/schema.
> 
> Hi Jim,
> 
> The values added by the parser that are not present in the XML document
itself
> can be identified at SAX level by looking at the isSpecified() property -
if this is
> true then the value comes from the document, otherwise the value comes
from
> the DTD/schema. See for example:
> http://xerces.apache.org/xerces2-
>
j/javadocs/api/org/xml/sax/ext/Attributes2.html#isSpecified%28java.lang.Stri
ng
> %29
> 
> Hope this helps!
> 
> Best Regards,
> George
> --
> George Cristian Bina
> <oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
> http://www.oxygenxml.com
> 
> On 6/11/13 10:02 AM, Michael Kay wrote:
> > Saxon has an option (-expand:off) to suppress the expansion of fixed
> > attribute values defined in the schema or DTD.
> >
> > Michael Kay
> > Saxonica
> >
> > On 11 Jun 2013, at 04:47, Jim Tivy wrote:
> >
> >> Hello
> >> The DITA XML DTD has a number of #FIXED declarations in the DTDs that
> >> imply fixed values for class attributes.
> >> When this is processed in SAX and serialized the DITA class
> >> attributes are also serialized.
> >> It would be cleaner, for future XML authors to not have to see these
> >> class attributes inlined into the XML document.
> >> Do XSLT or other serializers commonly take out FIXED attributes or
> >> does the infoset mark them so they are not serialized - or is the
> >> usual form to serialize these.
> >> Inhttp://www.w3.org/TR/xslt-xquery-serialization-30/#xml-outputit
> >> states "MAY"
> >>
> >> .  Thereconstructed tree
> >> <http://www.w3.org/TR/xslt-xquery-serialization-30/#reconstructed-tre
> >> e>*MAY*contain
> >> additional attributes and textnodes
> >> <http://www.w3.org/TR/xslt-xquery-serialization-30/#dt-node>resulting
> >> from the expansion of default and fixed values in its DTD or schema;
> >> also, in the presence of a DTD, non-CDATA attributes may lose
> >> whitespace characters as a result of attribute value normalization.
> >>
> >> My question is, what do most java based implementations of XLST
> >> processors, SAX processors and associated serializers do with respect
> >> to inlining or stripping out #FIXED attributes.
> >>
> >> Jim
> >>
> >

• References:
  • Processing and Serialization of FIXED attributes
    • From: "Jim Tivy" <jimt@bluestream.com>
  • Re: Processing and Serialization of FIXED attributes
    • From: Michael Kay <mike@saxonica.com>
  • Re: Processing and Serialization of FIXED attributes
    • From: George Cristian Bina <george@oxygenxml.com>