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<h1>Introduction to XSLT</h1>
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<p class="intro">XSLT is a language for transforming XML documents into XHTML
documents or to other XML documents.</p>
<p class="intro">XPath is a language for navigating in XML documents.</p>
<hr />
<h2>What You Should Already Know</h2>
<p>Before you continue you should have a basic understanding of the following:</p>
<ul>
<li>HTML / XHTML</li>
<li>XML / XML Namespaces</li>
<li>XPath</li>
</ul>
<p>If you want to study these subjects first, find the tutorials on our
<a href="../default.asp">Home page</a>.</p>
<hr />
<h2>What is XSLT?</h2>
<ul>
<li>XSLT stands for XSL Transformations</li>
<li>XSLT is the most important part of XSL</li>
<li>XSLT transforms an XML document into another XML document</li>
<li>XSLT uses XPath to navigate in XML documents</li>
<li>XSLT is a W3C Recommendation</li>
</ul>
<hr />
<h2>XSLT = XSL Transformations</h2>
<p>XSLT is the most important part of XSL.</p>
<p>XSLT is used to transform an XML document into another XML document, or another
type of document that is recognized by a browser, like HTML and
XHTML. Normally XSLT does this by transforming each XML element into an (X)HTML
element.</p>
<p>With XSLT you can add/remove elements and attributes to or from the output file.
You can also rearrange and sort elements, perform tests and make decisions
about which elements to hide and display, and a lot more.</p>
<p>A common way to describe the transformation process is to say that
<b>XSLT transforms an XML source-tree into an XML result-tree</b>.</p>
<hr />
<h2>XSLT Uses XPath</h2>
<p>XSLT uses XPath to find information in an XML document. XPath is used to
navigate through elements and attributes in XML documents.</p>
<p>If you want to study XPath first, please read our
<a href="../xpath/default.asp">XPath Tutorial</a>.</p>
<hr />
<h2>How Does it Work?</h2>
<p>In the transformation process, XSLT uses XPath to define parts of the source
document that should match one or more predefined templates. When a match is found,
XSLT will transform the matching part of the source document into the result
document.</p>
<hr />
<h2>XSLT is a W3C Recommendation</h2>
<p>XSLT became a W3C Recommendation 16. November 1999.</p>
<p>To read more about the XSLT activities at W3C, please read our
<a href="../w3c/w3c_xsl.asp">W3C Tutorial</a>.</p>
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