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FunctX XQuery Functions

functx:duration-from-timezone

Converts a timezone like "-05:00" or "Z" into xs:dayTimeDuration

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Description

The functx:duration-from-timezone function accepts a timezone (as it appears in xs:date, xs:time, xs:dateTime etc. values) and converts it to an xs:dayTimeDuration value. The $timezone value can be Z, or in the format (+|-)HH:MM.

Arguments and Return Type

NameTypeDescription
$timezone xs:string the time zone, in (+|-)HH:MM format
return value xs:dayTimeDuration

XQuery Function Declaration

See XSLT definition.
declare namespace functx = "http://www.functx.com";
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')
        )
 } ;

Examples

XQuery ExampleResults
functx:duration-from-timezone('Z')
PT0S
functx:duration-from-timezone('-05:00')
-PT5H
functx:duration-from-timezone('+09:00')
PT9H

See Also

functx:timezone-from-durationConverts an xs:dayTimeDuration into a timezone like "-05:00" or "Z"
fn:timezone-from-timeThe timezone portion of a time
fn:timezone-from-dateTimeThe timezone portion of a date/time

History

Published OnLast UpdatedContributor(s)
2006-06-272007-02-26Priscilla Walmsley, Datypic, pwalmsley@datypic.com, http://www.datypic.com
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