XML Validation:

[Jan Schenkel]

XML Schema validation is a different animal from DTD validation.
Whereas DTD validation is limited to the structure of the XML file (are there no eloements that are not defined in the DTD, are all the elements there, do they have the right attributes,etc) XML Schemas can also dictate the cardinality of the elements and their content.
RevXML doesn't offer XML Schema validation. You can either use a shell() call to a command-line tool, or write your own external to wrap an existing C library.

Jan Schenkel
=====
Quartam Reports & PDF Library for Revolution
<http://www.quartam.com>

=====
"As we grow older, we grow both wiser and more foolish at the same time."  (La Rochefoucauld)


--- On Mon, 6/15/09, David Bovill <david at architex.tv> wrote:

> From: David Bovill <david at architex.tv>
> Subject: XML Validation:
> To: "How to use Revolution" <use-revolution at lists.runrev.com>
> Date: Monday, June 15, 2009, 4:42 AM
> Has anyone done XML validation using
> Rev with and XML Schema? The docs say
> you can use a DTD, but mention nothing about using a
> schema...
> 
> I'm looking to validate XML within Rev. Looking at the
> docs, we can use:
> 
> 
> > Use the revXMLValidateDTD function to validate an XML
> tree against a DTD.
> >
> > Parameters:
> > The treeID is the number returned by the
> revCreateXMLTree or
> > revCreateXMLTreeFromFile function when you created the
> XML tree.
> >
> > The DTDText is a Document Type Definition.
> 
> 
> I need to get the DTD from the url referenced in the XML
> file - however the
> XML file uses an XML-based alternative to DTD, ( XML Schema
> ):
> 
>    - http://www.w3schools.com/Xml/xml_dtd.asp
> 
> The XML starts with something of the form:
> 
> <?xml version="1.0"?>
> > <XX xmlns="http://www.example.com/test/ui/" xmlns:xsi="
> > http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation="
> > http://www.example.com/test/ui/
> ..\ExampleXML\Test.xsd">
> 
> 
>  AFAIK, it is still not possible to use Rev to extract
> these XML attributes
> (they aall get put in "xmlns" - see bugzilla 231) Skipping
> over that issue,
> I could extract
> xsi:schemaLocation="http://www.example.com/test/ui/..\ExampleXML\Test.xsd"
> with a script but then the url is a bit strange I'm
> not sure how to get the text referenced. Any ideas?
>