Introduction to XLink and XPointer

## XLink Basic

XLink HOME XLink Intro XLink Syntax XLink Example XPointer Example XLink Summary

## XLink References

XLink Reference

# XLink and XPointer Introduction

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XLink defines a standard way of creating hyperlinks in XML documents.

XPointer allows the hyperlinks to point to more specific parts (fragments) in the XML document.

## What You Should Already Know

Before you continue you should have a basic understanding of the following:

- HTML / XHTML
- XML / XML Namespaces
- XPath

If you want to study these subjects first, find the tutorials on our Home page.

## What is XLink?

- XLink is short for XML Linking Language
- XLink is used to create hyperlinks in XML documents
- Any element in an XML document can behave as a link
- XLink supports simple links (like HTML) and extended links (for linking multiple resources together)
- With XLink, the links can be defined outside the linked files
- XLink is a W3C Recommendation

## What is XPointer?

- XPointer is short for XML Pointer Language
- XPointer allows the links to point to specific parts of an XML document
- XPointer uses XPath expressions to navigate in the XML document
- XPointer is a W3C Recommendation

## XLink and XPointer are W3C Recommendations

The XML Linking Language (XLink) became a W3C Recommendation 27. June 2001.

The XML Pointer Language (XPointer) became a W3C Recommendation 25. March 2003.

## XLink and XPointer Browser Support

The browser support for XLink and XPointer is minimal.

There is some XLink support in Mozilla 0.98+ and Internet Explorer 6.0+. Earlier versions of these browsers have no XLinks support at all!

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