Chapter 6: Building XML Markup

In This Chapter

Defining DTDs

Exploring what's in an XML DTD

Adding tags for fun and profit

Adding attributes to augment your documents

Making formal definitions pay

Extending and reusing code

Chapter Outline

What's So Special About an XML DTD?
- Resources
What's in a Definition?
Add a Tag for Fun and Profit
Add Attributes To Augment Your Documents
Making Formal Definitions Pay
- The <elementtype></elementtype> tag pair
- The type attribute
- The occurs attribute
- Defining your own attributes for the elements
- Open and closed content
- Grouping the elements
  - Grouping order of AND
  - Grouping order of OR
- Specifying a default value
- Specifying a fixed default value
- Numeric values
- Declaring data types
- Primary key
- Multipart primary keys
- Foreign key
- Multipart foreign keys
- Hierarchy
- Aliases
- Using elements from other schemas
Show Me the Examples
- Example 1
  - Schema
  - Data
- Example 2
  - Data
    - Interpreting the data
  - Schema
Whatever You Extend, Be Sure To Make Your Code Reusable
Moving On

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Last edited 1st March 2007.