How do I create my own document type?
Answer:
Document types usually need a formal description, either a DTD or a Schema. Whilst it is
possible to process well-formed XML documents without any such description, trying to
create them without one is asking for trouble. A DTD or Schema is used with an XML
editor or API interface to guide and control the construction of the document, making
sure the right elements go in the right places.
Creating your own document type therefore begins with an analysis of the class of
documents you want to describe: reports, invoices, letters, configuration files, credit-card
verification requests, or whatever. Once you have the structure correct, you write code to
express this formally, using DTD or Schema syntax.
create them without one is asking for trouble. A DTD or Schema is used with an XML
editor or API interface to guide and control the construction of the document, making
sure the right elements go in the right places.
Creating your own document type therefore begins with an analysis of the class of
documents you want to describe: reports, invoices, letters, configuration files, credit-card
verification requests, or whatever. Once you have the structure correct, you write code to
express this formally, using DTD or Schema syntax.
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