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   XML Schemas: mixing non-validated and validated elements in aninstance d

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  • From: "Roger L. Costello" <costello@mitre.org>
  • To: xml-dev@lists.xml.org
  • Date: Mon, 04 Sep 2000 09:27:57 -0400

Hi Folks,

It was my understanding that it is legal to create an instance document
in which a portion of it is validated against a schema while another
portion is not validated.  For example, suppose that I would like to
create an instance document for a Library (Library.xml).  Upon
investigation I discover that someone has created a schema for
BookCatalogue (BookCatalogue.xsd).  Thus, in creating Library.xml I
would like to take advantage of having a schema validator check the
BookCatalogue portion of my instance document.  Here's what my Library
instance document looks like:

<?xml version="1.0"?>
<Library xmlns:b="http://www.publishing.org/namespaces/BookCatalogue"
                <b:Title>My Life and Times</b:Title>
                <b:Author>Paul McCartney</b:Author>
                <b:Publisher>McMillin Publishing</b:Publisher>
    ... (other portion of Library)

Thus, as you can see I have embedded within the Library instance
document a BookCatalogue.  My desire is that a schema validator will
validate the BookCatalogue portion and leave the other portion alone.
(Note that there is no schema for Library, just for the BookCatalogue
portion.)  Is this legal?  /Roger


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