Это преобразование XSLT 1.0 создает выражение XPath для каждого узла, содержащегося в параметре $pNode
:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="node()|@*">
<path>
<xsl:call-template name="buildPath"/>
</path>
<xsl:apply-templates select="node()|@*"/>
</xsl:template>
<xsl:template name="buildPath">
<xsl:variable name="pNode" select="."/>
<xsl:variable name="theResult">
<xsl:for-each select="$pNode">
<xsl:variable name="theNode" select="."/>
<xsl:for-each select=
"$theNode
|
$theNode/ancestor-or-self::node()[..]">
<xsl:element name="slash">/</xsl:element>
<xsl:choose>
<xsl:when test="self::*">
<xsl:element name="nodeName">
<xsl:value-of select="name()"/>
<xsl:variable name="thisPosition" select=
"count(preceding-sibling::*
[name(current())
=
name()])"/>
<xsl:variable name="numFollowing" select=
"count(following-sibling::
*[name(current())
=
name()])"/>
<xsl:if test="$thisPosition + $numFollowing > 0">
<xsl:value-of select=
"concat('[', $thisPosition +1, ']')"/>
</xsl:if>
</xsl:element>
</xsl:when>
<xsl:otherwise> <!-- This node is not an element -->
<xsl:choose>
<xsl:when test="count(. | ../@*) = count(../@*)">
<!-- Attribute -->
<xsl:element name="nodeName">
<xsl:value-of select="concat('@',name())"/>
</xsl:element>
</xsl:when>
<xsl:when test="self::text()"> <!-- Text -->
<xsl:element name="nodeName">
<xsl:value-of select="'text()'"/>
<xsl:variable name="thisPosition"
select="count(preceding-sibling::text())"/>
<xsl:variable name="numFollowing"
select="count(following-sibling::text())"/>
<xsl:if test="$thisPosition + $numFollowing > 0">
<xsl:value-of select=
"concat('[', $thisPosition +1, ']')"/>
</xsl:if>
</xsl:element>
</xsl:when>
<xsl:when test="self::processing-instruction()">
<!-- Processing Instruction -->
<xsl:element name="nodeName">
<xsl:value-of select="'processing-instruction()'"/>
<xsl:variable name="thisPosition"
select="count(preceding-sibling::processing-instruction())"/>
<xsl:variable name="numFollowing"
select="count(following-sibling::processing-instruction())"/>
<xsl:if test="$thisPosition + $numFollowing > 0">
<xsl:value-of select=
"concat('[', $thisPosition +1, ']')"/>
</xsl:if>
</xsl:element>
</xsl:when>
<xsl:when test="self::comment()"> <!-- Comment -->
<xsl:element name="nodeName">
<xsl:value-of select="'comment()'"/>
<xsl:variable name="thisPosition"
select="count(preceding-sibling::comment())"/>
<xsl:variable name="numFollowing"
select="count(following-sibling::comment())"/>
<xsl:if test="$thisPosition + $numFollowing > 0">
<xsl:value-of select=
"concat('[', $thisPosition +1, ']')"/>
</xsl:if>
</xsl:element>
</xsl:when>
<!-- Namespace: -->
<xsl:when test=
"count(. | ../namespace::*)
=
count(../namespace::*)">
<xsl:variable name="apos">'</xsl:variable>
<xsl:element name="nodeName">
<xsl:value-of select="concat('namespace::*',
'[local-name() = ', $apos, local-name(), $apos, ']')"/>
</xsl:element>
</xsl:when>
</xsl:choose>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each>
<!-- <xsl:text>
</xsl:text> -->
</xsl:for-each>
</xsl:variable>
<xsl:value-of select="$theResult"/>
</xsl:template>
</xsl:stylesheet>
при применении к следующему документу XML :
<div id="entry-1" class="item-asset asset hentry">
<div class="asset-header">
<h2 class="asset-name entry-title">
<a rel="bookmark" href="http://blahblah.com/paper-scissors">Paper Scissors</a>
</h2>
</div>
<div class="asset-content entry-content">
<div class="asset-body">
<p>Paper and scissors</p>
</div>
</div>
</div>
Результатом является список выражений XPath для каждого узла в документе :
<path>/div</path>
<path>/div/@id</path>
<path>/div/@class</path>
<path>/div/div[1]</path>
<path>/div/div[1]/@class</path>
<path>/div/div[1]/h2</path>
<path>/div/div[1]/h2/@class</path>
<path>/div/div[1]/h2/a</path>
<path>/div/div[1]/h2/a/@rel</path>
<path>/div/div[1]/h2/a/@href</path>
<path>/div/div[1]/h2/a/text()</path>
<path>/div/div[2]</path>
<path>/div/div[2]/@class</path>
<path>/div/div[2]/div</path>
<path>/div/div[2]/div/@class</path>
<path>/div/div[2]/div/p</path>
<path>/div/div[2]/div/p/text()</path>