FunctX XQuery Function Library > Strings > Comparing >

functx:max-string

The maximum of a sequence of values, treating them like strings

Description

The functx:max-string function returns the maximum of the values in $strings. It differs from the built-in fn:max function only in treats values of all types like strings. The built-in fn:max function, by contrast, treats untyped and numeric values like numbers (and an error is raised if they are not numbers).

Arguments and Return Type

XQuery Function Declaration

declare namespace functx = "http://www.functx.com";
declare function functx:max-string
  ( $strings as xs:anyAtomicType* )  as xs:string? {

   max(for $string in $strings return string($string))
 } ;

Examples

<in-xml>
  <x>a</x>
  <y>c</y>
  <z>b</z>
</in-xml>

functx:max-string( $in-xml/* )

c

functx:max-string( (100,25,3) )

3

See Also

History