Description
The functx:all-whitespace function tests whether a string (or node that is atomized) is all whitespace or empty. If $arg is the empty sequence, it returns true.
Arguments and Return Type| Name | Type | Description |
|---|
$arg |
xs:string? |
the string (or node) to test |
| return value |
xs:boolean |
XSLT Function Declaration| See XQuery definition. | | XSLT 2.0 Syntax: |
|---|
<xsl:function name="functx:all-whitespace" as="xs:boolean"
xmlns:functx="http://www.functx.com" >
<xsl:param name="arg" as="xs:string?"/>
<xsl:sequence select="
normalize-space($arg) = ''
"/>
</xsl:function>
|
Examples<xsl:variable name="in-xml" as="item()*"> | | <in-xml>
<a> </a>
<b>x </b>
<c> <x>x</x> </c>
</in-xml> |
| </xsl:variable> |
| XSLT Example | Results |
|---|
functx:all-whitespace(' ')
|
true
|
functx:all-whitespace(' x ')
|
false
|
functx:all-whitespace($in-xml/a)
|
true
|
functx:all-whitespace($in-xml/b)
|
false
|
functx:all-whitespace($in-xml/c)
|
false
|
functx:all-whitespace($in-xml/c/text()[1])
|
true
|
See Also| fn:empty | Whether a value is the empty sequence | | functx:if-empty | The first argument if it is not blank, otherwise the second argument | | functx:if-absent | The first argument if it is not empty, otherwise the second argument |
History |
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