XSLT templates and recursion

Posted by user333411 on Stack Overflow See other posts from Stack Overflow or by user333411
Published on 2010-05-14T15:55:41Z Indexed on 2010/05/14 16:04 UTC
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Hi All,

Im new to XSLT and am having some problems trying to format an XML document which has recursive nodes.

My XML Code:

Hopefully my XML shows:

  • All <item> are nested with <items>
  • An item can have either just attributes, or sub nodes
  • The level to which <item> nodes are nested can be infinently deep
<?xml version="1.0" encoding="utf-8" ?> 
- <items>
  <item groupID="1" name="Home" url="//" /> 
- <item groupID="2" name="Guides" url="/Guides/">
- <items>
- <item groupID="26" name="Online-Poker-Guide" url="/Guides/Online-Poker-Guide/">
- <items>
- <item>
  <id>107</id> 
- <title>
- <![CDATA[ Poker Betting - Online Poker Betting Structures
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/online-poker-betting-structures
  ]]> 
  </url>
  </item>
- <item>
  <id>114</id> 
- <title>
- <![CDATA[ Beginners&#39; Poker - Poker Hand Ranking
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/online-poker-hand-ranking
  ]]> 
  </url>
  </item>
- <item>
  <id>115</id> 
- <title>
- <![CDATA[ Poker Terms - 4th Street and 5th Street
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/online-poker-poker-terms
  ]]> 
  </url>
  </item>
- <item>
  <id>116</id> 
- <title>
- <![CDATA[ Popular Poker - The Popularity of Texas Hold&#39;em
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/online-poker-popularity-texas-holdem
  ]]> 
  </url>
  </item>
- <item>
  <id>364</id> 
- <title>
- <![CDATA[ The Impact of Traditional Poker on Online Poker (and vice versa)
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/online-poker-tradional-vs-online
  ]]> 
  </url>
  </item>
- <item>
  <id>365</id> 
- <title>
- <![CDATA[ The Ultimate, Absolute Online Poker Scandal
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/online-poker-scandal
  ]]> 
  </url>
  </item>
  </items>
- <items>
- <item groupID="27" name="Beginners-Poker" url="/Guides/Online-Poker-Guide/Beginners-Poker/">
- <items>
+ <item>
  <id>101</id> 
- <title>
- <![CDATA[ Poker Betting - All-in On the Flop
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/poker-betting-all-in-on-the-flop
  ]]> 
  </url>
  </item>
+ <item>
  <id>102</id> 
- <title>
- <![CDATA[ Beginners&#39; Poker - Choosing an Online Poker Room
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/beginners-poker-choosing-a-room
  ]]> 
  </url>
  </item>
+ <item>
  <id>105</id> 
- <title>
- <![CDATA[ Beginners&#39; Poker - Choosing What Type of Poker to Play
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/beginners-poker-choosing-type-to-play
  ]]> 
  </url>
  </item>
+ <item>
  <id>106</id> 
- <title>
- <![CDATA[ Online Poker - Different Types of Online Poker
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/online-poker
  ]]> 
  </url>
  </item>
+ <item>
  <id>109</id> 
- <title>
- <![CDATA[ Online Poker - Opening an Account at an Online Poker Site
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/online-poker-opening-an-account
  ]]> 
  </url>
  </item>
+ <item>
  <id>111</id> 
- <title>
- <![CDATA[ Beginners&#39; Poker - Poker Glossary
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/beginners-poker-glossary
  ]]> 
  </url>
  </item>
+ <item>
  <id>117</id> 
- <title>
- <![CDATA[ Poker Betting - What is a Blind?
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/poker-betting-what-is-a-blind
  ]]> 
  </url>
  </item>
- <item>
  <id>118</id> 
- <title>
- <![CDATA[ Poker Betting - What is an Ante?
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/poker-betting-what-is-an-ante
  ]]> 
  </url>
  </item>
+ <item>
  <id>119</id> 
- <title>
- <![CDATA[ Beginners Poker - What is Bluffing?
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/online-poker-what-is-bluffing
  ]]> 
  </url>
  </item>
- <item>
  <id>120</id> 
- <title>
- <![CDATA[ Poker Games - What is Community Card Poker?
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/online-poker-what-is-community-card-poker
  ]]> 
  </url>
  </item>
- <item>
  <id>121</id> 
- <title>
- <![CDATA[ Online Poker - What is Online Poker?
  ]]> 
  </title>
- <url>
- <![CDATA[ /Guides/Online-Poker-Guide/Beginners-Poker/online-poker-what-is-online-poker
  ]]> 
  </url>
  </item>
  </items>
  </item>
  </items>
  </item>
  </items>
  </item>
  </items>

The XSL code:

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="html" indent="yes"/>

    <xsl:template name="loop">
        <xsl:for-each select="items/item">
            <ul>
            <li><xsl:value-of select="@name" /></li>
            <xsl:if test="@name and child::node()">
                <ul>
                    <xsl:for-each select="items/item">
                        <li><xsl:value-of select="@name" />test</li>
                    </xsl:for-each>
                </ul>
                <xsl:call-template name="loop" />
            </xsl:if>
            <xsl:if test="child::node() and not(@name)">
                <xsl:for-each select="/items">
                    <li><xsl:value-of select="id" /></li>
                </xsl:for-each>
            </xsl:if>
            </ul>
        </xsl:for-each>
        <xsl:for-each select="item/items/item">
            <li>hi</li>
        </xsl:for-each>
    </xsl:template>

    <xsl:template match="/" name="test">
            <xsl:call-template name="loop" />
    </xsl:template>

</xsl:stylesheet>

Im trying to write the XSL so that every <items> node will render a <ul> and every <items> node will render an <li>.

The XSL needs to be recursive because i cant tell how deep the nested nodes will go.

Can anyone help?

Regards, Al

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