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It allows Word/InfoPath to work with existing Schema. The Schema
probably already dictates the root element for the document, and to wrap
it with <ms:word> would break any other software that expected the
native shape. Think of this use of the PI as similar to the #! At the
head of scripts on Unix. It is useful for many of the same reasons.
-derek
> -----Original Message-----
> From: Jonathan Robie [mailto:jonathan.robie@datadirect.com]
> Sent: Tuesday, May 10, 2005 7:58 AM
> To: Dare Obasanjo
> Cc: Vladimir Gapeyev; xml-dev@lists.xml.org
> Subject: Re: [xml-dev] Well-established uses of processing
instructions?
>
> What is the advantage of using a PI for this?
>
> Jonathan
>
> Dare Obasanjo wrote:
>
> >The various Microsoft Office 2003 XML formats such as
wordProcessingML
> >use processing instructions to indicate which application should be
used
> >for opening the file. See
>
>http://msdn.microsoft.com/library/default.asp?url=/library/en-us/WordXM
L
> >CDK/html/cdktHTMLConverter_HV01113361.asp
> >
> >--
> >PITHY WORDS OF WISDOM
> >Two wrongs are only the beginning.
> >
> >This posting is provided "AS IS" with no warranties, and confers no
> >rights.
> >
> >
> >
> >>-----Original Message-----
> >>From: Vladimir Gapeyev [mailto:vgapeyev@seas.upenn.edu]
> >>Sent: Sunday, May 08, 2005 7:33 PM
> >>To: xml-dev@lists.xml.org
> >>Subject: [xml-dev] Well-established uses of processing instructions?
> >>
> >>
> >>I am curious to know to what uses have people put XML
> >>processing instructions. I am more interested in those that
> >>have a "community"
> >>around them (manifesting itself by a de jure or a de facto
> >>standard, or multiple applications that understand the PI, or
> >>large amount of document instances with unrelated authorship)
> >>rather than in made-up samples, however plausible they are.
> >>Any pointers?
> >>
> >>After some search, I am aware of just a couple instances:
> >>
> >>(1) http://www.w3.org/TR/xml-stylesheet/ -- W3C
> >>Recommendation of 1999 on Associating Style Sheets with XML
> >>documents. How much is this Rec important for non-HTML XML
> >>documents? (For (X)HTML, the <LINK REL="stylesheet"> element
> >>appears to be a better solution.)
> >>
> >>(2) It appears Apache project Cocoon-1 used PIs, but Cocoon-2
> >>switched to a more flexible model where association between
> >>an XML document and a processor is specified by a third,
> >>separate, document
> >>(http://wiki.apache.org/cocoon/ThePyramidModel?highlight=%28pr
> >>ocessing%29%7C%28instruction%29).
> >>
> >>Thanks for any help,
> >>
> >>Vladimir
> >>
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