Description
The functx:min-non-empty-string function returns the minimum of the values in $strings, throwing out all zero-length strings. Like the functx:min-string function, it treats untyped values like strings. This is in contrast to the built-in fn:min function, which treats untyped values like numbers (and raises an error if they are not numbers).
The values in $strings must be untyped, or match the type xs:string.
Arguments and Return Type| Name | Type | Description |
|---|
$strings |
xs:string* |
the sequence of strings to search |
| return value |
xs:string? |
XSLT Function Declaration| See XQuery definition. | <xsl:function name="functx:min-non-empty-string" as="xs:string?"
xmlns:functx="http://www.functx.com">
<xsl:param name="strings" as="xs:string*"/>
<xsl:sequence select="
min($strings[. != ''])
"/>
</xsl:function>
|
Examples<xsl:variable name="in-xml" as="item()*"> | | <authors>
<author>
<fName/>
<lName>Smith</lName>
</author>
<author>
<fName>Kate</fName>
<lName>Jones</lName>
</author>
<author>
<fName>John</fName>
<lName>Doe</lName>
</author>
</authors> |
| </xsl:variable> |
| XPath Example | Results | Explanation |
|---|
functx:min-non-empty-string( $in-xml//fName ) |
John |
Calling the functx:min-string function would have returned a zero-length string (""). Calling the fn:min function instead would have raised an error. |
See Also| fn:min | The minimum of a sequence of values | | functx:min-string | The minimum of a sequence of values, treating them like strings |
History |
Recommended Reading: 
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