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<?xml version="1.0" encoding="UTF-8"?>
<externalVariableBindings<dfdlConfig xmlns="http://www.w3.org/2001/XMLSchema" xmlns:ex="http://example.com">
  <externalVariableBindings>
    <bind name="ex:var1">-9</bind>
    <bind name="ex:var2">Foo</bind>
  </externalVariableBindings>
</dfdlConfig>

These would allow the external variables to be set or overridden, if defined in a DFDL schema like so:

<dfdl:defineVariable name="var1" external="true" type="xsd:int">1</dfdl:defineVariable>
<dfdl:defineVariable name="var2" external="true" type="xsd:string">Bar</dfdl:defineVariable>

Tunable Parameters

Various tunable parameters can be modified to change various Daffodil schema compilation and data parsing properties. For example, the following sets the maxOccursBounds tunable to 1024:

<?xml version="1.0" encoding="UTF-8"?>
<dfdlConfig xmlns="http://www.w3.org/2001/XMLSchema" xmlns:ex="http://example.com">
  <tunables>
    <maxOccursBounds>1024</maxOccursBounds>
  </tunables>
</dfdlConfig>

Below is the list of tunable parameters and their default values:

Configuration Schema

Below is the schema that defines this XML file:

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