FunctX XQuery Function Library > Sequences > Sorting and Grouping >

functx:sort-case-insensitive

Sorts a sequence of values or nodes regardless of capitalization

Description

The functx:sort-case-insensitive function sorts a sequence of values or nodes without regard to whether they are upper or lower-case. Normally, using most collations, all upper-case letters are sorted before all lower-case letters, so "Z" would come before "a". It returns the items in their original capitalization.

Arguments and Return Type

XQuery Function Declaration

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

   for $item in $seq
   order by upper-case(string($item))
   return $item
 } ;

Examples

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

functx:sort-case-insensitive(('a','c','B'))

('a', 'B', 'c')

functx:sort-case-insensitive($in-xml/*)

<f>a</f>
<e>B</e>
<f>c</f>

See Also

History