XSLT, 2nd Edition

Name

[2.0] reverse()

Given a sequence of items, returns a sequence with the items in reverse order.

Syntax

item()* reverse(item()*)

Inputs

A sequence of items. If the sequence is the empty sequence, the empty sequence is returned.

Outputs

A sequence with the input items in reverse order.

Defined in

XQuery 1.0 and XPath 2.0 Functions and Operators section 15.1, “General Functions and Operators on Sequences.”

Example

Here is a short stylesheet that creates a sequence and prints it, and then prints the sequence again after invoking the reverse() function against it:

<?xml version="1.0"?>
<!-- reverse.xsl -->
<xsl:stylesheet version="2.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:xs="http://www.w3.org/2001/XMLSchema"
  xmlns:datatest="http://www.oreilly.com">

  <xsl:output method="text"/>

  <xsl:template match="/">

    <xsl:variable name="testSequence" as="item()*">
      <xsl:sequence 
        select="(3, 4, 5, current-date(), current-time(), 8, 'blue',
                'red', xs:float(3.14), 42, xs:date('1995-04-21'))"/>
    </xsl:variable>
    
    <xsl:text>&#xA;Here is a test of the reverse() </xsl:text>
    <xsl:text>function:&#xA;</xsl:text>

    <xsl:text>&#xA;  Our original sequence is:&#xA;&#xA;    </xsl:text>
    <xsl:value-of select="$testSequence" separator="&#xA;    "/>

    <xsl:text>&#xA;&#xA;  Passing our sequence to reverse() </xsl:text>
    <xsl:text>gives us:&#xA;&#xA;    </xsl:text>

    <xsl:value-of select="reverse($testSequence)" separator="&#xA;    "/>
  </xsl:template>

</xsl:stylesheet>

Here are the results:

Here is a test of the reverse() function: Our ...