ModSAX: Proposed Core Properties

David Megginson david at megginson.com
Wed Mar 10 01:17:07 GMT 1999


My current proposal for the ModParser interface includes the following 
methods:

  public abstract void set (String propID, Object value)
    throws SAXNotSupportedException;

  public abstract Object get (String propID);
    throws SAXNotSupportedException;

Properties may be read-write, read-only, or write-only; they may also
be parse-time (may be changed during parsing) or non-parse-time (may
be changed only before a parse or between parses).


ModSAX Core Properties
----------------------

(All properties are associated with a single value type.)

http://xml.org/sax/properties/namespace-sep <String> (write-only)
  Set the separator to be used between the URI part of a name and the
  local part of a name when namespace processing is being performed
  (see the http://xml.org/sax/features/namespaces feature).  By
  default, the separator is a single space.  This property may not be
  set while a parse is in progress (throws a SAXNotSupportedException).

http://xml.org/sax/properties/dom-node <Node> (read-only)
  Get the DOM node currently being visited, if the SAX parser is
  iterating over a DOM tree.  If the parser recognises and supports
  this property but is not currently visiting a DOM node, it should
  return null (this is a good way to check for availability before the 
  parse begins).

http://xml.org/sax/properties/xml-string <String> (read-only)
  Get the literal string of characters associated with the current
  event.  If the parser recognises and supports this property but is
  not currently parsing text, it should return null (this is a good
  way to check for availability before the parse begins).  I stole
  this idea from Expat.


Remember that no SAX parser will be required to support any of these
-- it simply has to throw a SAXNotSupportedException if it doesn't
know about the property.


All the best,


David

-- 
David Megginson                 david at megginson.com
           http://www.megginson.com/

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