Description
The functx:min-string function returns the minimum of the values in $strings. It differs from
the built-in fn:min function only in treats values of all types like strings. The fn:min function, by contrast, treats untyped and numeric values like numbers (and an error is raised if they are not numbers).
Arguments and Return Type| Name | Type | Description |
|---|
$strings |
xs:anyAtomicType* |
the sequence of strings |
| return value |
xs:string? |
XQuery Function Declaration| See XSLT definition. | | XQuery Syntax for January 2007 (1.0): |
|---|
declare namespace functx = "http://www.functx.com";
declare function functx:min-string
( $strings as xs:anyAtomicType* ) as xs:string? {
min(for $string in $strings return string($string))
} ; | | XQuery Syntax for July 2004 - November 2005 (CR): |
|---|
declare namespace functx = "http://www.functx.com";
declare function functx:min-string
( $strings as xdt:anyAtomicType* ) as xs:string? {
min(for $string in $strings return string($string))
} ; | | XQuery Syntax for May 2003: |
|---|
declare namespace functx = "http://www.functx.com"
define function min-string
( $strings as xdt:anyAtomicType* ) as xs:string? {
fn:min(for $string in $strings return fn:string($string))
} |
Exampleslet $in-xml := | <in-xml>
<x>a</x>
<y>c</y>
<z>b</z>
</in-xml> | return |
| XQuery Example | Results | Explanation |
|---|
functx:min-string( $in-xml/* )
|
a
|
Calling the fn:min function instead would have raised an error. |
functx:min-string( (100,25,3) )
|
100
|
See AlsoHistory |
|
