EXSLT - math:max - EXSLT Function Implementation

Supported Version: 1
XML Definition: math.max.xml
Source: math.max.function.xsl

Source

<exsl:function name="math:max">
   <xsl:param name="nodes"
              select="/.." />
   <xsl:choose>
      <xsl:when test="not($nodes)">
         <exsl:return select="number('NaN')" />
      </xsl:when>
      <xsl:otherwise>
         <xsl:for-each select="$nodes">
            <xsl:sort data-type="number"
                      order="descending" />
            <xsl:if test="position() = 1">
               <exsl:return select="number(.)" />
            </xsl:if>
         </xsl:for-each>
      </xsl:otherwise>
   </xsl:choose>
</exsl:function>

Change History

Submitted: 2001-03-28
Creator: Jeni Tennison(http://www.jenitennison.com)

Returns the maximum value from a node-set.

Version	Modified	By	Details
1.1	2001-04-28	Jeni Tennison	Added condition that `math:max()` must return `NaN` if any of the values of the nodes in the node set passed as the argument have a numerical value of `NaN`. Changed the definition of the maximum to be the value of the first node in the node list when sorted as with `xsl:sort` with a data type of `number` in `descending` order.
1.2	2001-05-22	Jeni Tennison	Added vendor implementations in Saxon and 4XSLT Changed status to stable
1.3	2001-06-11	Jeni Tennison	Added vendor implementation in jd.xslt.
1.4	2001-08-23	Jeni Tennison	Added vendor implementation in libxslt.
1.5	2002-08-20	Craig Stewart	Added Xalan-J implementation to the list.
1.6	2002-11-12	Craig Stewart	Updated 4XSLT version to 0.12.0a3.

Copyright

This material is in the public domain.