User View of the TEI DTD

Selecting Tag Sets

A `view' of the DTD is created by using the main DTD (tei2.dtd) and selecting the appropriate subsets, e.g:

<!DOCTYPE tei.2 SYSTEM 'tei2.dtd' [ 
<!ENTITY % TEI.prose 'INCLUDE' > 
<!ENTITY % TEI.analysis 'INCLUDE' > 
<!ENTITY % TEI.fs 'INCLUDE' > ]
>
      

Element Classes

Elements and their attributes are grouped into `classes'.

Model classes

• share syntactic properties (occur in same position)
• may have similar meaning

Attribute classes

• share attributes
• generally have similar meaning

Both types of class may have subclasses; both have inheritance. Both are documented and used to generate the DTD.

Modifying the TEI DTD

A user can modify the TEI DTD by

• renaming elements
• suppressing elements
• adding elements
• modifying elements
• invoking local modifications
• documenting local modifications

All modifications are invoked by defining the extension entities as follows:

 
<!ENTITY % TEI.extensions.ent system 'project.ent' > 
<!ENTITY % TEI.extensions.dtd system 'project.dtd' >

The modifications itself are then placed in the files `project.ent' and `project.dtd'.

Ordering a DTD from the Pizza-Chef

Since the invocation and modification is rather complex, a DTD delivery service has been established at the TEI Consortium (http://www.tei-c.org/pizza.html). Ordering a DTD is very simple:

• Visit the Pizza-Chef at the TEI Consortium
• Select the base tag set(s)
• Add and/or delete additional tags
• Upload your own modifications, if you have some
• Select a SGML or XML version of the DTD
• Voilá — take delivery of a fresh DTD immediately!