Name

<!DOCTYPE>

Synopsis

<!DOCTYPE root-element SYSTEM|PUBLIC
["name"] “URI_of_DTD">

The !DOCTYPE instruction allows you to specify a DTD for an XML document. This instruction currently takes one of two forms: 

<!DOCTYPE root-element SYSTEM "URI_of_DTD">
<!DOCTYPE root-element PUBLIC "name" "URI_of_DTD">
SYSTEM

The SYSTEM variant specifies the URI location of a DTD for private use in the document. For example: 

<!DOCTYPE Book SYSTEM
   "http://mycompany.com/dtd/mydoctype.dtd">
PUBLIC

The PUBLIC variant is used in situations in which a DTD has been publicized for widespread use. In these cases, the DTD is assigned a unique name, which the XML processor may use by itself to attempt to retrieve the DTD. If this fails, the URI is used: 

<!DOCTYPE Book PUBLIC "-//O'Reilly//DTD//EN"
   "http://www.oreilly.com/dtd/xmlbk.dtd">

Public DTDs follow a specific naming convention. See the XML specification for details on naming public DTDs.

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