(:**************************************************************:)
(: Test: functx-functx-scheme-from-uri-4                                  :)
(: Written by: Priscilla Walmsley (Frans Englich is maintainer) :)
(: Date: 2008-05-16+02:00                                       :)
(:**************************************************************:)

declare namespace functx = "http://www.example.com/";
(:~
 : Returns the scheme from a URI 
 :
 : @author  Priscilla Walmsley, Datypic 
 : @version 1.0 
 : @see     http://www.xqueryfunctions.com/xq/functx_scheme-from-uri.html 
 : @param   $uri the URI 
 :) 
declare function functx:scheme-from-uri 
  ( $uri as xs:string? )  as xs:string? {
       
   substring-before($uri,':')
 } ;
(functx:scheme-from-uri('www.datypic.com'))
