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(:**************************************************************:)
(: Test: functx-functx-yyyymmdd-to-date-2 :)
(: Written by: Priscilla Walmsley (Frans Englich is maintainer) :)
(: Date: 2008-05-16+02:00 :)
(:**************************************************************:)
declare namespace functx = "http://www.example.com/";
(:~
: Converts a string with format YYYYMMDD (with any delimiters) to a date
:
: @author Priscilla Walmsley, Datypic
: @version 1.1
: @see http://www.xqueryfunctions.com/xq/functx_yyyymmdd-to-date.html
: @param $dateString the YYYYMMDD string
:)
declare function functx:yyyymmdd-to-date
( $dateString as xs:string? ) as xs:date? {
if (empty($dateString))
then ()
else if (not(matches($dateString,
'^\D*(\d{4})\D*(\d{2})\D*(\d{2})\D*$')))
then error(xs:QName('functx:Invalid_Date_Format'))
else xs:date(replace($dateString,
'^\D*(\d{4})\D*(\d{2})\D*(\d{2})\D*$',
'$1-$2-$3'))
} ;
(functx:yyyymmdd-to-date('20041215'))
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