functx:min-non-empty-string
The minimum of a sequence of strings, ignoring “empty” values
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.
Parameters |
Description |
|---|---|
strings:string() |
the sequence of strings to search |
Examples
XPath |
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. |
XPath |
Results |
|---|---|
functx:min-non-empty-string( $in-xml//fName ) |
John |