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(:**************************************************************:)
(: Test: functx-functx-duration-from-timezone-all :)
(: Written by: Priscilla Walmsley (Frans Englich is maintainer) :)
(: Date: 2008-05-16+02:00 :)
(:**************************************************************:)
declare namespace functx = "http://www.example.com/";
(:~
: Converts a timezone like "-05:00" or "Z" into xs:dayTimeDuration
:
: @author Priscilla Walmsley, Datypic
: @version 1.0
: @see http://www.xqueryfunctions.com/xq/functx_duration-from-timezone.html
: @param $timezone the time zone, in (+|-)HH:MM format
:)
declare function functx:duration-from-timezone
( $timezone as xs:string ) as xs:dayTimeDuration {
xs:dayTimeDuration(
if (not(matches($timezone,'Z|[\+\-]\d{2}:\d{2}')))
then error(xs:QName('functx:Invalid_Timezone_Value'))
else if ($timezone = 'Z')
then 'PT0S'
else replace($timezone,'\+?(\d{2}):\d{2}','PT$1H')
)
} ;
(functx:duration-from-timezone('Z'), functx:duration-from-timezone('-05:00'), functx:duration-from-timezone('+09:00'))
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