• Chapter 1: Getting Started with Stylus Studio
• Chapter 2: Editing and Querying XML
• Chapter 3: Converting Non-XML Files to XML
• Chapter 4: Working with XSLT
• Chapter 5: Creating XSLT Using the XSLT Mapper
• Chapter 6: Debugging Stylesheets
• Chapter 7: Defining XML Schemas
• Chapter 8: Defining Document Type Definitions
  • What Is a DTD?
  • Creating DTDs
  • About Editing DTDs
    • Restrictions
  • About Modifiers in Element Definitions in DTDs
  • Defining Elements in DTDs
  • Defining General Entities and Parameter Entities in DTDs
  • Inserting White Space in DTDs
  • Adding Comments to DTDs
  • About Node Properties in DTDs
  • Associating an XML Document with an External DTD
  • Moving an Internal DTD to an External File
• Chapter 9: Writing XPath Expressions
• Chapter 10: Working with XQuery in Stylus Studio
• Chapter 11: Composing Web Service Calls
• Chapter 12: Accessing Relational Data as XML
• Chapter 13: Extending Stylus Studio
• Chapter 14: Stylus Studio GUI Reference

Home > Online Product Documentation > Table of Contents > About Editing DTDs

About Editing DTDs

To open a DTD, select File > Open and navigate to the file you want to open. For details, see Opening Files in Stylus Studio.

Stylus Studio displays a DTD with two views. Click the Text tab or the Tree tab to display the view you want. The Tree tab displays a DOM-like tree that represents the DTD.

You can specify and edit the DTD in either view. However, the recommended method is to edit the DTD in the Tree view. The Tree view provides tools tailored for creating a DTD. The tool bar on the left provides a button for defining each node in a DTD. After you select a node in the tree, the DTD editor allows you to add only those nodes that are valid at that point.

Also, in the Tree view of the DTD, you can see the properties for each node. When you click the node whose properties you want to view, the properties appear in the Properties window. If the Properties window is not visible, select View > Properties from the menu bar.

After you add a node, you can make changes in the Properties window, the Tree tab, or the Text tab. Any changes you make in one place are immediately reflected in the other places.

See Defining Elements in DTDs.

Restrictions

A DTD can include other, external DTDs. In a future release, it is expected that you will be able to click Open Schema to display an included DTD. However, in this release, this is not supported.

DTDs are not XML documents. Consequently, as you would expect, Indent XML Tags does not work on DTDs.