Description
The functx:substring-before-if-contains function performs substring-before, returning the entire string if it does not contain the delimiter. It differs from the built-in fn:substring-before function, which returns a zero-length string if the delimiter is not found.
Arguments and Return Type| Name | Type | Description |
|---|
$arg |
xs:string? |
the string to substring |
$delim |
xs:string |
the delimiter |
| return value |
xs:string? |
XQuery Function Declaration| See XSLT definition. | | XQuery Syntax for July 2004 - January 2007 (1.0): |
|---|
declare namespace functx = "http://www.functx.com";
declare function functx:substring-before-if-contains
( $arg as xs:string? ,
$delim as xs:string ) as xs:string? {
if (contains($arg,$delim))
then substring-before($arg,$delim)
else $arg
} ; | | XQuery Syntax for May 2003: |
|---|
declare namespace functx = "http://www.functx.com"
define function substring-before-if-contains
( $arg as xs:string? ,
$delim as xs:string ) as xs:string? {
if (fn:contains($arg,$delim))
then fn:substring-before($arg,$delim)
else $arg
} |
Examples| XQuery Example | Results |
|---|
functx:substring-before-if-contains('abcd','c')
|
ab
|
functx:substring-before-if-contains('abcd','x')
|
abcd
|
See AlsoHistory |
|
