Modularization of XHTML™ 1.0

This document is the second edition of Modularization of XHTML, an abstract modularization of XHTML and implementations of the abstraction using XML Document Type Definitions (DTDs), and XML Schemas. This modularization provides a means for subsetting and extending XHTML, a feature needed for extending XHTML's reach onto emerging platforms. The second edition of this document provides several minor updates to provide clarifications and address errors found in the first edition.

Status of This Document

This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.

This document is a working draft, but is nearly complete. It reflects clarifications and corrections as a result of nearly three years of use by the community. It also includes an new implementation of the abstract modules using XML Schemas. This implementation has gone through the W3C process, including Last Call, and is now integrated here in anticipation of its publication as a W3C Recommendation. It should in no way be considered stable, and should not be normatively referenced for any purposes whatsoever. It is being published so that the community can review the changes in anticipation of entering the W3C's Proposed Edited Recommendation process later this year.

Publication as a Working Draft does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.

The English version of this specification is the only normative version. Information about translations of this document is available at http://www.w3.org/MarkUp/translations.

Quick Table of Contents

1. Introduction
2. Terms and Definitions
3. Conformance Definition
4. Defining Abstract Modules
5. XHTML Abstract Modules
A. Building Schema Modules
B. Developing Schema with defined and extended modules
C. XHTML Schema Module Implementations
D. Building DTD Modules
E. Developing DTDs with defined and extended modules
F. XHTML DTD Module Implementations
G. References
H. Design Goals
J. Acknowledgements

Full Table of Contents

1. Introduction
- 1.1. What is XHTML?
- 1.2. What is XHTML Modularization?
- 1.3. Why Modularize XHTML?
  - 1.3.1. Abstract modules
  - 1.3.2. Module implementations
  - 1.3.3. Hybrid document types
  - 1.3.4. Validation
  - 1.3.5. Formatting Model
2. Terms and Definitions
3. Conformance Definition
- 3.1. XHTML Host Language Document Type Conformance
- 3.2. XHTML Integration Set Document Type Conformance
- 3.3. XHTML Family Module Conformance
- 3.4. XHTML Family Document Conformance
- 3.5. XHTML Family User Agent Conformance
- 3.6. Naming Rules
- 3.7. XHTML Module Evolution
4. Defining Abstract Modules
- 4.1. Syntactic Conventions
- 4.2. Content Types
- 4.3. Attribute Types
- 4.4. An Example Abstract Module Definition
  - 4.4.1. XHTML Skiing Module
5. XHTML Abstract Modules
- 5.1. Attribute Collections
- 5.2. Core Modules
  - 5.2.1. Structure Module
  - 5.2.2. Text Module
  - 5.2.3. Hypertext Module
  - 5.2.4. List Module
- 5.3. Applet Module
- 5.4. Text Extension Modules
  - 5.4.1. Presentation Module
  - 5.4.2. Edit Module
  - 5.4.3. Bi-directional Text Module
- 5.5. Forms Modules
  - 5.5.1. Basic Forms Module
  - 5.5.2. Forms Module
- 5.6. Table Modules
  - 5.6.1. Basic Tables Module
  - 5.6.2. Tables Module
- 5.7. Image Module
- 5.8. Client-side Image Map Module
- 5.9. Server-side Image Map Module
- 5.10. Object Module
- 5.11. Frames Module
- 5.12. Target Module
- 5.13. Iframe Module
- 5.14. Intrinsic Events Module
- 5.15. Metainformation Module
- 5.16. Scripting Module
- 5.17. Style Sheet Module
- 5.18. Style Attribute Module
- 5.19. Link Module
- 5.20. Base Module
- 5.21. Name Identification Module
- 5.22. Legacy Module
A. Building Schema Modules
- A.1. Named Content Models
- A.2. Defining the Namespace of a Module
  - A.2.1. Global and Local Element Declarations
  - A.2.2. Global and Local Attribute Declarations
- A.3. Importing External Namespace Schema Components
- A.4. Content model Redefinitions
B. Developing Schema with defined and extended modules
- B.1. Defining additional attributes
- B.2. Defining additional elements
- B.3. Defining the content model for a collection of modules
  - B.3.1. Integrating a stand-alone module into XHTML
  - B.3.2. Mixing a new module throughout the modules in XHTML
- B.4. Creating a new Document Type
  - B.4.1. Creating a simple Docoment Type
  - B.4.2. Creating a Language by extending XHTML
  - B.4.3. Creating a Language by removing and replacing XHTML modules
  - B.4.4. Creating a the new Document Type
C. XHTML Schema Module Implementations
- C.1. Character Entities
- C.2. XHTML Schema Modular Framework
  - C.2.1. XHTML Notations
  - C.2.2. XHTML Datatypes
  - C.2.3. XHTML Common Attribute Definitions
  - C.2.4. XHTML Character Entities
- C.3. XHTML Module Implementations
  - C.3.1. XHTML Core Modules
  - C.3.2. Applet
  - C.3.3. Text Modules
  - C.3.4. Forms
  - C.3.5. Tables
  - C.3.6. Image
  - C.3.7. Client-side Image Map
  - C.3.8. Server-side Image Map
  - C.3.9. Object
  - C.3.10. Frames
  - C.3.11. Target
  - C.3.12. Iframe
  - C.3.13. Intrinsic Events
  - C.3.14. Metainformation
  - C.3.15. Scripting
  - C.3.16. Style Sheet
  - C.3.17. Style Attribute
  - C.3.18. Link
  - C.3.19. Base
  - C.3.20. Name Identification
  - C.3.21. Legacy
  - C.3.22. Ruby
- C.4. XHTML Schema Support Modules
  - C.4.1. Block Phrasal
  - C.4.2. Block Presentational
  - C.4.3. Block Structural
  - C.4.4. Inline Phrasal
  - C.4.5. Inline Presentational
  - C.4.6. Inline Structural
  - C.4.7. Param
  - C.4.8. Legacy - Miscellaneous
D. Building DTD Modules
- D.1. Parameter Entity Naming
- D.2. Defining the Namespace of a Module
  - D.2.1. Qualified Names sub-module
  - D.2.2. Declaration sub-module(s)
  - D.2.3. Using the module as a stand-alone DTD
  - D.2.4. Namespace Idiosyncrasies
E. Developing DTDs with defined and extended modules
- E.1. Defining additional attributes
- E.2. Defining additional elements
- E.3. Defining the content model for a collection of modules
  - E.3.1. Integrating a stand-alone module into XHTML
  - E.3.2. Mixing a new module throughout the modules in XHTML
- E.4. Creating a new DTD
  - E.4.1. Creating a simple DTD
  - E.4.2. Creating a DTD by extending XHTML
  - E.4.3. Creating a DTD by removing and replacing XHTML modules
  - E.4.4. Creating a new DTD
- E.5. Using the new DTD
F. XHTML DTD Module Implementations
- F.1. XHTML Character Entities
  - F.1.1. XHTML Latin 1 Character Entities
  - F.1.2. XHTML Special Characters
  - F.1.3. XHTML Mathematical, Greek, and Symbolic Characters
- F.2. XHTML Modular Framework
  - F.2.1. XHTML Base Architecture
  - F.2.2. XHTML Notations
  - F.2.3. XHTML Datatypes
  - F.2.4. XHTML Common Attribute Definitions
  - F.2.5. XHTML Qualified Names
  - F.2.6. XHTML Character Entities
- F.3. XHTML Module Implementations
  - F.3.1. XHTML Core Modules
  - F.3.2. Applet
  - F.3.3. Text Modules
  - F.3.4. Forms
  - F.3.5. Tables
  - F.3.6. Image
  - F.3.7. Client-side Image Map
  - F.3.8. Server-side Image Map
  - F.3.9. Object
  - F.3.10. Frames
  - F.3.11. Target
  - F.3.12. Iframe
  - F.3.13. Intrinsic Events
  - F.3.14. Metainformation
  - F.3.15. Scripting
  - F.3.16. Style Sheet
  - F.3.17. Style Attribute
  - F.3.18. Link
  - F.3.19. Base
  - F.3.20. Name Identification
  - F.3.21. Legacy
- F.4. XHTML DTD Support Modules
  - F.4.1. Block Phrasal
  - F.4.2. Block Presentational
  - F.4.3. Block Structural
  - F.4.4. Inline Phrasal
  - F.4.5. Inline Presentational
  - F.4.6. Inline Structural
  - F.4.7. Param
  - F.4.8. Legacy Redeclarations
G. References
- G.1. Normative References
- G.2. Informative References
H. Design Goals
- H.1. Requirements
  - H.1.1. Granularity
  - H.1.2. Composibility
  - H.1.3. Ease of Use
  - H.1.4. Compatibility
  - H.1.5. Conformance
J. Acknowledgements

Modularization of XHTML^™ 1.0 - Second Edition

W3C Working Draft 18 February 2004

Abstract

Status of This Document

Quick Table of Contents

Full Table of Contents

Modularization of XHTML™ 1.0 - Second Edition

W3C Working Draft 18 February 2004

Abstract

Status of This Document

Quick Table of Contents

Full Table of Contents

Modularization of XHTML^™ 1.0 - Second Edition