RE: [xml-dev] Help for finding root node from XML Schema

["Klotz, Leigh" <Leigh.Klotz@pahv.xerox.com>]

Title: Message

It's not just the root node that you can't determine -- an XML Schema defines a potentially infinite class of documents, and in the general case is not generative.

XForms solves this problem by asking the author to provide a prototype instance giving initial structure.

By the way, you might be interested in XForms, as it also performs display and allows structured editing of XML instances. See http://www.w3.org/MarkUp/Forms for a list of implementations.

There are some IE plugins, a Macromedia-flash zero-install version, an open source browser, and a few server-side transformation engines.

 

-----Original Message-----
From: Priti Patil [mailto:ppatil@icope.com]
Sent: Friday, October 10, 2003 4:25 AM
To: xml-dev@lists.xml.org
Subject: [xml-dev] Help for finding root node from XML Schema

Hello all,

I am new to XML and XML Schema. I am working on a project which involves visual display of XML Schema. For parsing  XML Schema I am using MSXML 4.0

 

My problem is How to get element  which will become root element of XML document which uses this schema.

 

e.g.

PO.xsd

 

<xsd:schema
     xmlns:xsd="http://www.w3.org/2001/XMLSchema"
     xmlns=""
      elementFormDefault="qualified"
      finalDefault="restriction">

 

 <xsd:element name="purchaseOrder" type="PurchaseOrderType" />

 

 <xsd:element name="comment" type="xsd:string"/>

 

 <xsd:complexType name="PurchaseOrderType">
  <xsd:sequence> ...   </xsd:sequence>
  <xsd:attribute name="orderDate" type="xsd:date"/>
 </xsd:complexType>

 

</xsd:schema>

When I parse above schema first call to get_childs returns two childs 1 ) comment 2) purchaseOrder.

 

So how to determine which is root?

 

 

 

Thanks & Regards,
 Priti Patil