sgml:dtd/2

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Predicate dtd/2

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dtd(+Type, -DTD) is det

DTD is a DTD object created from the file dtd(Type). Loaded DTD objects are cached. Note that DTD objects may not be shared between threads. Therefore, dtd/2 maintains the pool of DTD objects using a thread_local predicate. DTD objects are destroyed if a thread terminates.

Errors: - existence_error(source_sink, dtd(Type))