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RE: The use of URLs in the XML technologies to reference externalresourc

• From: "Costello, Roger L." <costello@mitre.org>
• To: "xml-dev@lists.xml.org" <xml-dev@lists.xml.org>
• Date: Fri, 13 May 2011 12:00:54 -0400

Hi Folks,

Ken Holman sent me some corrections and additions. Here's the updated version. Thanks Ken!   /Roger


The XML technologies use URLs to reference external resources. For example, XML Schema uses a URL in the <xs:include> and <xs:import> elements to reference other XML Schema documents.

The below list shows several XML technologies  and where they use URLs. Please let me know if I have missed any place where URLs are used in these technologies to reference external resources.  /Roger

-----------------------------------------
XML
-----------------------------------------

1. The <!ENTITY> external entity

2. The SYSTEM url in a <!DOCTYPE> declaration


-----------------------------------------
XML Schema
-----------------------------------------

1. The <xs:include> element

2. The <xs:import> element

3. The <xs:redefine> element

4. The xsi:schemaLocation attribute

5. The xsi:noNamespaceSchemaLocation attribute


-----------------------------------------
XSLT
-----------------------------------------

1. The document() function

2. The <xsl:include> element

3. The <xsl:import> element

4. The <?xml-stylesheet> PI

5. The <xsl:import-schema> element

6. The unparsed-text() function

7. The unparsed-text-available() function

8. The <xsl:result-document> element

9. All the XPath functions listed below


-----------------------------------------
XPath
-----------------------------------------

1. The doc() function

2. The collection() function

3. The base-uri() function

4. The doc-available() function


-----------------------------------------
Schematron
-----------------------------------------

1. The <sch:include> element

2. All the XPath functions listed above

• References:
  • The use of URLs in the XML technologies to reference externalresources
    • From: "Costello, Roger L." <costello@mitre.org>
  • RE: The use of URLs in the XML technologies to reference externalresources
    • From: "Costello, Roger L." <costello@mitre.org>