fn:subsequence-where

Returns a contiguous sequence of items from $input, with the start and end points located by applying predicates.

subsequence-where($input as item()*, $from as (fn(item(), xs:integer) as xs:boolean?)?:=true#0, $to as (fn(item(), xs:integer) as xs:boolean?)?:=false#0) ➔ item()*

Arguments

 

$input

item()*

The input sequence

 

$from

(fn(item(), xs:integer) as xs:boolean?)?

:= true#0

Predicate function to determine the first item in the subsequence

 

$to

(fn(item(), xs:integer) as xs:boolean?)?

:= false#0

Predicate function to determine the last item in the subsequence

Result

item()*

Namespace

http://www.w3.org/2005/xpath-functions

Links to W3C specifications

XPath 4.0 Functions and Operators

Saxon availability

Available in XPath 4.0, XSLT 4.0, and XQuery 4.0. Requires Saxon-PE or Saxon-EE. Implemented since Saxon 13. Available for all platforms.