xmltok-dtd

xmltok-dtd is a variable defined in `xmltok.el'.
Its value is

nil

Documentation:
Information about the DTD used by `xmltok-forward'.
`xmltok-forward-prolog' sets this up.

It consists of an alist of general entity names vs definitions. The
first member of the alist is t if references to entities not in the
alist are well-formed (e.g. because there's an external subset that
wasn't parsed).

Each general entity name is a string. The definition is either nil,
a symbol, a string, a cons cell. If the definition is nil, then it
means that it's an internal entity but the result of parsing it is
unknown. If it is a symbol, then the symbol is either `unparsed',
meaning the entity is an unparsed entity, `external', meaning the
entity is or references an external entity, `element', meaning the
entity includes one or more elements, or `not-well-formed', meaning
the replacement text is not well-formed. If the definition is a
string, then the replacement text of the entity is that string; this
happens only during the parsing of the prolog. If the definition is
a cons cell (ER . AR), then ER specifies the string that results
from referencing the entity in element content and AR is either nil,
meaning the replacement text included a <, or a string which is the
normalized attribute value.