Changes for the Explain-- DTD, version 1.2

Changes between versions 1.1 and 1.2 (Fri, 8 Mar 2002 17:28:15):

• The databaseInfo element's title and description subelements are now repeatable.
• The title element is now used in various other places as well as in databaseInfo.
• The indexInfo element may now contain any sequence of zero or more index or sortKeyword subelements. (Previously there had to be at least one index.)
• The index element may now contain a single optional name subelement, and zero or more title and map subelements. (Previously, it had a single optional indexTitle, a single optional indexType and zero or more maps.) To say the same thing a different way, the indexTitle element is dropped, and title is re-used in its place; name is introduced; and indexType is dropped, largely because no-one except Rob understood what it meant :-)
• The map element's attributeset attribute is renamed attributeSet (with a capital S).
• All of the old elements that represented particular kinds of search attributes have gone away, to be replaced by a single unified new attr element. So we've lost:
  • use
  • posit
  • struct
  • relat
  • trunc
  • complet
  • access
  • semantic
  • language
  • content
  • expan
  • weight
  • hitcount
  • compar
  • occur
  • indirect
  • func
  • form
  Now that's what I call simplification!
• The new attr element has a mandatory type attribute and an attributeSet attribute which defaults to ``BIB1''.
• The format element is renamed to the less ambiguous recordSyntax
• The elementset element is renamed to the more canonical elementSet (with a capital S).
• The elementSet element now has a mandatory name attribute and contains a title subelement instead of #CDATA.