XHTML™ Modularization 1.1

W3C Recommendation 8 October 2008

This version:: http://www.w3.org/TR/2008/REC-xhtml-modularization-20081008
Latest version:: http://www.w3.org/TR/xhtml-modularization
Previous version:: http://www.w3.org/TR/2008/PR-xhtml-modularization-20080611
Diff-marked version:: xhtml-modularization-diff.html
Diff-marked from version 1.0: xhtml-modularization-rec-diff.html
Editors:: Daniel Austin, Sun Microsystems
Subramanian Peruvemba, Oracle Corporation
Shane McCarron, Applied Testing and Technology, Inc.
Masayasu Ishikawa, W3C
Mark Birbeck, webBackplane mark.birbeck@webBackplane.com
Version 1.0 Editors:: Murray Altheim, Sun Microsystems
Frank Boumphrey, HTML Writers Guild
Sam Dooley, IBM
Shane McCarron, Applied Testing and Technology
Sebastian Schnitzenbaumer, Mozquito Technologies AG
Ted Wugofski, Openwave (formerly Gateway)

Please refer to the errata for this document, which may include some normative corrections.

This document is also available in these non-normative formats: Single HTML file, PostScript version, PDF version, ZIP archive, or Gzip'd TAR archive.

See also translations.

Abstract

This document is version 1.1 of XHTML Modularization, 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. This specification is intended for use by language designers as they construct new XHTML Family Markup Languages. This specification does not define the semantics of elements and attributes, only how those elements and attributes are assembled into modules, and from those modules into markup languages. This second version of this specification includes several minor updates to provide clarifications and address errors found in the first version. It also provides an implementation using XML Schemas.

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 has been reviewed by W3C Members, by software developers, and by other W3C groups and interested parties, and is endorsed by the Director as a W3C Recommendation. It is a stable document and may be used as reference material or cited from another document. W3C's role in making the Recommendation is to draw attention to the specification and to promote its widespread deployment. This enhances the functionality and interoperability of the Web.

Members of the public are invited to send comments on this Recommendation to www-html-editor@w3.org (archive). It is inappropriate to send discussion email to this address. Public discussion may take place on www-html@w3.org (archive).

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
I. Changes from XHTML Modularization 1.0

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. Datatype Definitions and Namespaces
- A.5. 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 Document 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
I. Changes from XHTML Modularization 1.0