Date: Jul. 9, 2000
Link: http://www.ccil.org/~cowan/XML/ibtwsh6.dtd
Source Author or Organization: John Cowan

The Itsy Bitsy Teeny Weeny Simple Hypertext DTD (IBTWSH) is an XML Document Type Definition (DTD) which describes a subset of XHTML Basic for embedded use within other XML DTDs. Its purpose is to enable documentation within an XML document that offers the enhanced readability of rich text, as opposed to documentation that ends up being #PCDATA only. When the IBTWSH DTD is incorporated by reference (as an external parameter entity) into another DTD, that DTD inherits the capabilities of this one. If HTML-compatible elements and attributes are used the documentation can be displayed by HTML renderers.