使用XSLT解析XML？

Question

How can I parse a XML document using XSLT? May be I am wrong, Is it possible to parse a XML document using XSLT?

Here is XML document:

<?xml version="1.0" encoding="utf-8" ?>
<cart>
  <item id="1">
    <name>Tyres</name>
    <cost>20</cost>
  </item>
  <item id="2">
    <name>Front Glass</name>
    <cost>30</cost>
  </item>
  <item id="3">
    <name>Vanity Mirror</name>
    <cost>10</cost>
  </item>
  <item id="4">
    <name>Brake Pads</name>
    <cost>50</cost>
  </item>
  <item id="5">
    <name>Brake Oil</name>
    <cost>40</cost>
  </item>
</cart>

and the XSLT page:

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"
>
    <xsl:output method="xml" indent="yes"/>

    <xsl:template match="shopping_cart">
      <root>
        <xsl:apply-templates select="cart"/>
      </root>        
    </xsl:template>
  <xsl:template match="cart">
    <cart>
      <xsl:attribute name="name">
        <xsl:value-of select="name"/>
      </xsl:attribute>
      <xsl:attribute name="cost">
        <xsl:value-of select="cost"/>
      </xsl:attribute>

    </cart>
  </xsl:template>
</xsl:stylesheet>

Any way to do that? Please guide as I don't know much about parsing concept.

Answer 1

If there is only one XML document used by the stylesheet, the normal mechanism is to make it the "principal input document". Depending on the API to your processor, you can typically supply the source document in either parsed or unparsed form; if you supply it in unparsed form (for example as an InputStream) it will automatically be parsed and presented to the stylesheet as a tree of nodes.

If your stylesheet uses multiple documents, you can access (and parse) the secondary input documents using the document() function.