free_dtd/1

Documentation
- Reference manual
- Packages
  - SWI-Prolog SGML/XML parser
    - Predicate Reference
      - DTD-Handling
        
        new_dtd/2
        
        free_dtd/1
        
        load_dtd/2
        
        load_dtd/3
        
        open_dtd/3
        
        dtd/2
        
        dtd_property/2
        
        The DOCTYPE declaration

Availability::- use_module(library(sgml)).(can be autoloaded)

free_dtd(+DTD)

Deallocate all resources associated to the DTD. Further use of DTD is invalid.