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(:**************************************************************:)
(: Test: functx-functx-days-in-month-all :)
(: Written by: Priscilla Walmsley (Frans Englich is maintainer) :)
(: Date: 2008-05-16+02:00 :)
(:**************************************************************:)
declare namespace functx = "http://www.example.com/";
(:~
: Number of days in the month
:
: @author Priscilla Walmsley, Datypic
: @version 1.0
: @see http://www.xqueryfunctions.com/xq/functx_days-in-month.html
: @param $date the date
:)
declare function functx:days-in-month
( $date as xs:anyAtomicType? ) as xs:integer? {
if (month-from-date(xs:date($date)) = 2 and
functx:is-leap-year($date))
then 29
else
(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31)
[month-from-date(xs:date($date))]
} ;
(:~
: Whether a date falls in a leap year
:
: @author Priscilla Walmsley, Datypic
: @version 1.0
: @see http://www.xqueryfunctions.com/xq/functx_is-leap-year.html
: @param $date the date or year
:)
declare function functx:is-leap-year
( $date as xs:anyAtomicType? ) as xs:boolean {
for $year in xs:integer(substring(string($date),1,4))
return ($year mod 4 = 0 and
$year mod 100 != 0) or
$year mod 400 = 0
} ;
(functx:days-in-month(xs:date('2004-01-23')), functx:days-in-month(
xs:dateTime('2004-02-15T12:00:13')), functx:days-in-month('2005-02-15'))
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