Zvon XSLT Tutorial

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A variable can hold a result tree fragment. The operations permitted on a result tree fragment are a subset of those permitted on a node-set. An operation is permitted on a result tree fragment only if that operation would be permitted on a string (the operation on the string may involve first converting the string to a number or boolean). In particular, it is not permitted to use the /, //, and [] operators on result tree fragments. When a permitted operation is performed on a result tree fragment, it is performed exactly as it would be on the equivalent node-set. Compare XSLT stylesheet 1 and XSLT stylesheet 2 .

XSLT stylesheet 1

XML Source

Output

HTML view

1111111

22222222

AAA	BBB
aaa	bbb

1111111

22222222

XSLT stylesheet

<xsl:stylesheet version = '1.0'
     xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>

<xsl:variable name="A1">
     <xsl:copy-of select="//TABLE[1]"/>
</xsl:variable>
<xsl:variable name="A2">
     <xsl:copy-of select="//TABLE[2]"/>
</xsl:variable>
<xsl:template match="/">
     <xsl:copy-of select="$A2"/>
     <xsl:copy-of select="$A1"/>
     <xsl:copy-of select="$A2"/>
</xsl:template>

</xsl:stylesheet>

XSLT stylesheet 2

XML Source

Output

HTML view

1111111 22222222

AAA BBB aaa bbb

1111111 22222222

XSLT stylesheet

<xsl:stylesheet version = '1.0'
     xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>

<xsl:variable name="A1">
     <xsl:copy-of select="//TABLE[1]"/>
</xsl:variable>
<xsl:variable name="A2">
     <xsl:copy-of select="//TABLE[2]"/>
</xsl:variable>
<xsl:template match="/">
     <P>
          <xsl:value-of select="$A2"/>
     </P>
     <P>
          <xsl:value-of select="$A1"/>
     </P>
     <P>
          <xsl:value-of select="$A2"/>
     </P>
</xsl:template>

</xsl:stylesheet>