# F. XHTML 2.0 Document Type Definition

Contents

This appendix is normative.

This appendix will contain the implementation of the XHTML 2.0 DTD driver file and content model file.

XHTML 2.0 DTD Needed

The XHTML 2.0 DTD driver and content model files need to be built. There is an open issue about how to integrate the XForms instance data into such a DTD.

## F.1. Issues

Entity management: do we still need it? PR #670
State: Approved
Resolution: Accepted
User: Agree

Notes:
We will support both XML Catalogs and SGML Open Catalogs for XHTML 2.

Character entities: do we still need them? PR #671
State: Approved
Resolution: Accepted
User: None

Notes:
The WG believes that there's still a need for character entities. We need to find a solution. On 9 September 2003, the WG agrees to retain character entities; DTDs therefore still necessary; it might be possible to supply a DTD that only provides the entities.

Last Call Comment: DTD and SCHEMA directories included in TR tree for XHTML M12N 1.1 PR #7893
State: Open
Resolution: None
User: None

Notes:
Actually, the DTD directory needs to stay there to ensure backward compatibility. However, it should really be a symlink into /MarkUp/DTD space rather than having the items live in date space and be hard to maintain.