FunctX XQuery Function Library > Sequences > Sorting and Grouping >

functx:sort-as-numeric

Sorts a sequence of numeric values or nodes

Description

The functx:sort-as-numeric function sorts a sequence of numeric values or nodes. This is useful for untyped values, because the order by clause by default treats values as strings, and would therefore sort 100 before 99.

Arguments and Return Type

XQuery Function Declaration

declare namespace functx = "http://www.functx.com";
declare function functx:sort-as-numeric
  ( $seq as item()* )  as item()* {

   for $item in $seq
   order by number($item)
   return $item
 } ;

Examples

<in-xml>
  <f>1</f>
  <f>35</f>
  <e>4</e>
</in-xml>

functx:sort-as-numeric(('1','100','99'))

('1', '99', '100')

functx:sort-as-numeric($in-xml/*)

<f>1</f>
<e>4</e>
<f>35</f>

See Also

History