FunctX XQuery Function Library > Sequences > Sorting and Grouping >

functx:sort

Sorts a sequence of values or nodes

Description

The functx:sort function sorts a sequence of values or nodes. If nodes are provided, their typed values are compared (if they are untyped, they are treated like strings.) Although this can easily be accomplished with an order by clause, calling this function makes the query less verbose because you can avoid writing a FLWOR expression solely to sort the values.

Arguments and Return Type

XQuery Function Declaration

declare namespace functx = "http://www.functx.com"; 
declare function functx:sort 
  ( $seq as item()* )  as item()* {
       
   for $item in $seq
   order by $item
   return $item
 } ;

declare namespace functx = "http://www.functx.com" 
define function sort 
  ( $seq as item()* )  as item()* {
       
   for $item in $seq
   order by $item
   return $item
 }

Examples

<in-xml>
  <f>c</f>
  <f>a</f>
  <e>b</e>
</in-xml>

functx:sort(('c','a','b'))

('a', 'b', 'c')

functx:sort($in-xml/*)

<f>a</f>
<e>b</e>
<f>c</f>

See Also

History