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xpur |
Moduleurn:org:ten60:netkernel:ext:xml:uraDefinitionFormat
Syntax
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The xpur accessor returns a canonical URI extracted from an XPath location in the operand document. The XPath location is supplied by the operator as a canonical XPath document.
Documents frequently contain URI's that are needed for subsequent processing. This accessor extracts the value at a given xpath location and casts it to a canonical URI.
Here's an example...
<instr>
<type>xpur</type>
<operand>
<example>
<someresource the_uri_to_my_resource="file:/some/resource.xml">
<desc>My resource</desc>
</someresource>
</example>
</operand>
<operator>
<xpath>/example/someresource/@the_uri_to_my_resource</xpath>
</operator>
<target>var:uri</target>
</instr>
<type>xpur</type>
<operand>
<example>
<someresource the_uri_to_my_resource="file:/some/resource.xml">
<desc>My resource</desc>
</someresource>
</example>
</operand>
<operator>
<xpath>/example/someresource/@the_uri_to_my_resource</xpath>
</operator>
<target>var:uri</target>
</instr>
Produces a value in var:uri...
<uri>file:/some/resource.xml</uri>
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