Mod??SAX: Revised Proposed Core Features 1999-03-12

David Megginson david at
Fri Mar 12 14:06:09 GMT 1999

Here's a revised list of the proposed core features for Mod??SAX.
I've added one new feature --
-- which will explicitly request the parse to supply or not to supply
a Locator through the DocumentHandler.setDocumentLocator callback.

There are two possible advantages to including this feature:

1. If the application wants a locator, it can tell before beginning
   the parse whether the parser can supply one.

2. If the application does not want a locator, the SAX parser/driver
   might be able to operate more efficiently if it doesn't have to
   maintain the Locator information.

What does everyone else think?

In any case, here's the revised core feature list (I've also added
extra wording to make it clear that the external DTD subset counts as
an external parameter entity):

ModSAX Core Features

$Id: features.txt,v 1.1 1999/03/12 13:57:54 david Exp $
  Validate (true) or don't validate (false).
  Expand external general entities (true) or don't expand (false).
  Expand external parameter entities including the external DTD subset 
  (true) or don't expand (false).
  Preprocess namespaces (true) or don't preprocess (false).  See also
  the property.
  Ensure that all consecutive text is returned in a single callback to
  DocumentHandler.characters or DocumentHandler.ignorableWhitespace
  (true) or explicitly do not require it (false).
  Provide a Locator using the DocumentHandler.setDocumentLocator
  callback (true), or explicitly do not provide one (false).

All the best,


David Megginson                 david at

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