Document Type Declaration

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A Complete XML Document

The following sample XML document brings all these concepts together. It contains a document type declaration, an internal DTD specification, and then the actual data contents of the document:

<?xml version="1.0" standalone="yes" encoding="UTF-8"?> <!  ---   A Book order in XML format  -- > <!DOCTYPE Order [ <!ELEMENT Order (LineItem)+> <!ATTLIST Order orderNumber CDATA #REQUIRED> <!ELEMENT LineItem (Title, Author+, BookType, Price)> <!ELEMENT Title (#PCDATA)> <!ELEMENT Author (#PCDATA)> <!ELEMENT BookType (#PCDATA)> <!ELEMENT Price (#PCDATA)> <!ENTITY HARDCOVER "Hardcover"> <!ENTITY PAPERBACK "Paperback"> ]> <Order orderNumber="81332713233407"> <LineItem> <Title>Debt of Honor</Title> <Author>Tom Clancy</Author> <BookType>&PAPERBACK;</BookType> <Price>$6.99</Price> </LineItem> <LineItem> <Title>The Hunt for Red October</Title> <Author>Tom Clancy</Author> <BookType>&HARDCOVER;</BookType> <Price>$18.99</Price> </LineItem> </Order>

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