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FunctX XQuery Functions

functx:left-trim

Trims leading whitespace

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Description

The functx:left-trim function removes all whitespace at the beginning of a string. Whitespace is defined as it is in XML, namely as the characters space, tab, carriage return and line feed. If $arg is the empty sequence, it returns a zero-length string.

Arguments and Return Type

NameTypeDescription
$arg xs:string? the string to trim
return value xs:string

XQuery Function Declaration

See XSLT definition.
declare namespace functx = "http://www.functx.com";
declare function functx:left-trim
  ( $arg as xs:string? )  as xs:string {

   replace($arg,'^\s+','')
 } ;

Examples

XQuery ExampleResults
functx:left-trim('   xyz')
xyz
functx:left-trim('   xyz    x')
xyz    x
functx:left-trim('xyz')
xyz

See Also

functx:trimTrims leading and trailing whitespace
functx:right-trimTrims trailing whitespace
fn:normalize-spaceNormalizes whitespace

History

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