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(psgml.info)Managing the DTD

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Document Type Declaration
*************************

   PSGML needs to know about the DTD you are using for many of its
commands.  If you do not have a `DOCTYPE' declaration in your file,
PSGML will try assume that there is one of the form

     <!DOCTYPE NAME SYSTEM>

   where NAME is the value of `sgml-default-doctype-name', if the value
is non-`nil', else the GI of the first tag will be used.

   PSGML will try to parse the document type declaration the first time
you do something that needs to parse the document or immediately if the
variable `sgml-auto-activate-dtd' is `t'.  You can also initiate the
parsing of the document type declaration with the command
`sgml-parse-prolog'.  Big DTDs take some time to parse.

   When the DTD has been parsed or loaded the name of the document
element will be displayed in the mode line inside brackets.  If there
was an error parsing the DTD or there is no DTD, the mode line will
display `[ANY]' (*** this is not really correct! a DTD will be
established even if there are missing entities, it may even be empty).

Precompiled DTD Subsets

Using a Split Document

Inserting a DOCTYPE

Information from the DTD