set_with_default

Description:

Sets a value to a default value

Syntax:

Two parameters:

1. Value to be returned, if it exists

2. Value to be returned if no value can be determined for the first parameter.

Example:

<operation name="set_with_default">
<constant>42</constant>
<constant>1</constant>
</operation>

Return value:

42
If no value can be determined for both parameters, nothing is returned.