FunctX XSLT Functions

FunctX XSLT Function Library > Dates, Times and Durations > Month >

functx:days-in-month

Number of days in the month

Description

The functx:days-in-month function returns the number of days in the month of $date as an integer.

The $date argument must be castable to xs:date, meaning that it must have the type xs:date or xs:dateTime, or be an xs:string or untyped value of the form YYYY-MM-DD.

Arguments and Return Type

Name	Type	Description
`$date`	`xs:anyAtomicType?`	the date
return value	`xs:integer?`

XSLT Function Declaration

See XQuery definition.

<xsl:function name="functx:days-in-month" as="xs:integer?"
              xmlns:functx="http://www.functx.com">
  <xsl:param name="date" as="xs:anyAtomicType?"/>

  <xsl:sequence select="
   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))]
 "/>

</xsl:function>