XML Tutorial/XPath/proceding

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preceding axis contains all nodes that come before the context node in document order, excluding nodes in the ancestoraxis and attribute and namespace nodes.

   <source lang="xml">

File: Data.xml <?xml version="1.0" encoding="utf-8"?> 

   <AAA id="a1" pos="start">
     <BBB id="b1"/>
     <BBB id="b2"/>
   </AAA>
   <AAA id="a2">
     <BBB id="b3"/>
     <BBB id="b4"/>
     <CCC id="c1">
       <CCC id="c2"/>
     </CCC>
     <BBB id="b5">
       <CCC id="c3"/>
     </BBB>
   </AAA>

File: Transform.xslt <?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet 

     version="1.0"
     xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
   <xsl:template match="/">
<xsl:for-each select="/source//*"> <xsl:call-template name="print"/> </xsl:for-each> </table> </xsl:template> <xsl:template name="print"> <tr> <td> <xsl:value-of select="name()"/> <xsl:text> id = </xsl:text> <xsl:value-of select="./@id"/> </td> <td> <xsl:for-each select="preceding::*"> <xsl:if test="not(@id)"> <xsl:value-of select="name()"/> </xsl:if> <xsl:value-of select="./@id"/> <xsl:text/> </xsl:for-each> </td> </tr> </xsl:template> </xsl:stylesheet> Output: <?xml version="1.0" encoding="UTF-8"?>
Axis: preceding
Element</th> 
         <td>Node-set</th>
</table></source>
Источник — «http://wbex.ru/index.php?title=XML_Tutorial/XPath/proceding&oldid=10723»
Axis: preceding
Element</th><td>Node-set</th>