XSLT transformam

O diagrama representa o processo da transforma��o: recolhendo um original de XML, aplicando a lima de XSLT aos n�s do original de XML, e gerar um outro original do formato desejado.

Consiste em duas fun��es. A primeira fun��o l� simplesmente um original de XML e transforma ent�o os dados usando uma lima de XSLT. A segunda fun��o l� um original de XML, transforma os dados, e escreve ent�o um original novo de XML dos dados transformados.

Exemplo 1: - XML de transforma��o a XML

Transformando o original de XML

<?xml version="1.0"?>
<persons>
<person username="MP123456">
    <name>John</name>
    <family_name>Smith</family_name>
</person>
<person username="PK123456">
    <name>Morka</name>
    <family_name>Ismincius</family_name>
</person>
</persons>

Aplicando-se os XSLT transformam:

<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="xml" indent="yes"/>
<xsl:template match="/">
<transform>
<xsl:apply-templates/>
</transform>
</xsl:template>
<xsl:template match="person">
<record>
<username>
<xsl:value-of select="@username" />
</username>
<name>
<xsl:value-of select="name" />
</name>
</record>
</xsl:template>
</xsl:stylesheet>

Resultados em um original novo de XML, tendo uma outra estrutura:

<?xml version="1.0" encoding="UTF-8"?>
<transform>
   <record>
      <username>MP123456</username>
      <name>John</name>
   </record>
   <record>
      <username>PK123456</username>
      <name>Morka</name>
   </record>
</transform>

Exemplo 2: XML de transforma��o a XHTML

Exemplo do original entrante de XML:

<?xml version="1.0" encoding="UTF-8"?>

<domains>
<sun.com ownedBy="Sun Microsystems Inc.">
<host>
www
<use>World Wide Web site</use>
</host>
<host>
java
<use>Java info</use>
</host>
</sun.com>

<w3.org ownedBy="The World Wide Web Consortium">
<host>
www
<use>World Wide Web site</use>
</host>
<host>
validator
<use>web developers who want to get it right</use>
</host>
</w3.org>
</domains>

Exemplo XSLT Stylesheet:

<?xml version="1.0" encoding="UTF-8" ?>

<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml">
<xsl:output method="xml" indent="yes"
doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"/>


<xsl:template match="/">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>test1</title>
<style type="text/css">
h1 { padding: 10px; padding-width: 100%; background-color: silver }
td, th { width: 40%; border: 1px solid silver; padding: 10px }
td:first-child, th:first-child { width: 20% }
table { width: 650px }
</style>
</head>
<body>
<xsl:apply-templates/>
</body>
</html>
</xsl:template>


<xsl:template match="domains/*">
<h1><xsl:value-of select="@ownedBy"/></h1>
<p>The following host names are currently in use at
<strong><xsl:value-of select="local-name(.)"/></strong>
</p>
<table>
<tr><th>Host name</th><th>URL</th><th>Used by</th></tr>
<xsl:apply-templates/>
</table>
</xsl:template>


<xsl:template match="host">

<xsl:variable name="url" select=
"normalize-space(concat('http://', normalize-space(node()), '.', local-name(..)))"/>
<tr>
<td><xsl:value-of select="node()"/></td>
<td><a href="{$url}"><xsl:value-of select="$url"/></a></td>
<xsl:apply-templates select="use"/>
</tr>
</xsl:template>


<xsl:template match="use">
<td><xsl:value-of select="."/></td>
</xsl:template>

</xsl:stylesheet>

XHTML output que isto produziria

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
                      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
    <meta content="text/html;charset=UTF-8" http-equiv="Content-Type" />
    <title>test1</title>
    <style type="text/css">
      h1          { padding: 10px; padding-width: 100%; background-color: silver }
      td, th      { width: 40%; border: 1px solid silver; padding: 10px }
      td:first-child, th:first-child { width: 20% }
      table       { width: 650px }
    </style>
</head>
<body>
    <h1>Sun Microsystems Inc.</h1>
    <p>The following host names are currently in use at <strong>sun.com</strong></p>
    <table>
        <tr>
          <th>Host name</th>
          <th>URL</th>
          <th>Used by</th>
        </tr>
        <tr>
          <td>www</td>
          <td><a href="http://www.sun.com">http://www.sun.com</a></td>
          <td>World Wide Web site</td>
        </tr>
        <tr>
          <td>java</td>
          <td><a href="http://java.sun.com">http://java.sun.com</a></td>
          <td>Java info</td>
        </tr>
    </table>

    <h1>The World Wide Web Consortium</h1>
    <p>The following host names are currently in use at <strong>w3.org</strong></p>
    <table>
      <tr>
        <th>Host name</th>
        <th>URL</th>
        <th>Used by</th>
      </tr>
      <tr>
        <td>www</td>
        <td><a href="http://www.w3.org">http://www.w3.org</a></td>
        <td>World Wide Web site</td>
      </tr>
      <tr>
        <td>validator</td>
        <td><a href="http://validator.w3.org">http://validator.w3.org</a></td>
        <td>web developers who want to get it right</td>
      </tr>
    </table>
</body>
</html>

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