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The use of URLs in the XML technologies to reference externalresources

• From: "Costello, Roger L." <costello@mitre.org>
• To: "xml-dev@lists.xml.org" <xml-dev@lists.xml.org>
• Date: Fri, 13 May 2011 09:50:59 -0400

Hi Folks,

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


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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. <?xml-stylesheet> PI

5. The <xsl:import-schema> element

6. All the XPath functions


-----------------------------------------
XSLT/XPath
-----------------------------------------

1. The doc() function

2. The collection() function

3. The unparsed-text() function

4. The base-uri() function


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Schematron
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1. The <sch:include> element

2. All the XPath functions

• Follow-Ups:
  • Re: The use of URLs in the XML technologies to referenceexternal resources
    • From: Philip Fearon <pgfearo@googlemail.com>
  • RE: 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>