The count-non-empty() Function
Release 2.0 - ...
Syntax
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number count-non-empty(node-set) |
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Description
Function count-non-empty() returns the number of non-empty nodes in the argument node-set. A node is considered non-empty if it is convertible into a string with a greater-than zero length.
Example
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<xforms:model>
<xforms:instance xmlns:ex="http://example.org">
<ex:root>
<ex:value>2</ex:value>
<ex:value/>
<ex:value>6</ex:value>
<ex:value></ex:value>
</ex:root>
</xforms:instance>
</xforms:model>
...
<xforms:group>
<xforms:output value="count-non-empty(ex:value)">
<xforms:label>Count non-empty nodes : </xforms:label>
</xforms:output>
</xforms:group>
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The above example will return 2.
Specification
Link to the XForms specification: the count-non-empty() function.