Altova XMLSpy 2025 Professional Edition

The DTD/Schema | Include another DTD command allows you to include another Document Type Definition (DTD) or external parsed entity into the internal subset of a document type definition, or in any DTD document. This is done by defining a corresponding external parsed entity declaration and using that entity in the following line:

 

<!ENTITY % navigation.dtd SYSTEM "S:\xml\navigation.dtd">

%navigation.dtd;

 

The command opens the Assign File dialog to let you specify the DTD file you want to include in your DTD.

 

Note:This command is enabled in Grid View only.

 

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