Revision history for Perl extension XML::Parser.

2.20 Sun Feb 28 15:35:52 EST 1999
	- Fixed miscellaneous bugs in xmlfilter.
	- In the default external entity handler, prepend the base only
	  for relative URLs.
	- Chris Nandor <pudge@pobox.com> provided patches for building
	  on Macintosh.
	- As suggested by Matt Sergeant <Matthew.Sergeant@eml.ericsson.se>,
	  added the finish method to Expat.
	- Matt also provided a fix to a bug he discovered in the Streams
	  style.
	- Fixed a parse position bug reported by Enno Derksen <enno@att.com>
	  that was affecting both original_string and position_in_context.
	- Fixed a gross memory leak reported by David Megginson,
	  <david@megginson.com>: there was a circular reference to the Expat
	  object and the internal end handler for context was not freeing
	  element names after they were removed from the context stack.
	- Now using expat Version 19990109
	  (Plus any patches in Expat/expat.patches)
	- Added is_defaulted method to Expat to tell if an attribute
	  was defaulted. (Requested by Enno Derksen for XML::DOM.)
	- Matt Sergeant <Matthew.Sergeant@eml.ericcson.se> reported that
	  the XML::Parser parse methods weren't propagating array context
	  to the Final handler. Now they are.
	- Fixed more memory leaks (again reported by David Megginson).
	  The SVs pointing to the handlers weren't being reclaimed when
	  the callback vector was freed.
	- Added the element_index method to Expat.
2.19 Sun Jan  3 11:23:45 EST 1999
	- When the recognized string is long enough, expat uses multiple
	  calls to reportDefault. Fixed recString handler in Expat.xs to
	  deal with this properly.
	- Added original_string method to Expat. This returns the untranslated
	  string (i.e. original encoding) that caused current event.
	- Alberto Accomazzi <alberto@cfa0.harvard.edu> sent in more patches
	  for perl5.005_54 incompatibilities.
	- Alberto also fingered a nasty memory bug in Expat.xs that arose
	  sometimes when you registered a declaration handler but no
	  default handler. It would give you a "Not a CODE reference"
	  error in a place that wasn't using any CODE references.
	- <schinder@pobox.com> reported a problem with compiling expat
	  on a Sun 4 due to non-exsitance of memmove on that OS. Provided
	  a workaround in Makefile.PL
	- Now using expat Version 19981231 from James Clark's test directory.
	- Made patch to this version in order to support original_string
	  (see Expat/expat.patches.)
	- Added CdataStart and CdataEnd handlers to expat.
2.18 Sun Dec 27 07:39:23 EST 1998
	- Alberto Accomazzi <alberto@cfa0.harvard.edu> pointed out that
	  the DESTROY sub in the new XML::Parser::Encinfo package was
	  pointing to the wrong package for calling FreeEncoding.
	- Tarang Kumar Patel <mombasa@ptolemy.arc.nasa.gov> reported
	  the mis-declaration of an integer as unsigned in the
	  convert_to_unicode function in Expat.xs.
	- Glenn R. Kronschnabl <grk@arlut.utexas.edu> reported a problem
	  with ExternEnt handlers when using parsefile. Turned out to be
	  an unmatched ENTER; SAVETMPS pair that screwed up the Perl stack.
	- Tom Hughes <tom@compton.demon.co.uk> reported that the fix I put
	  in for the swith to PL_sv.. names failed with 5.0005_54, since
	  these became real variables instead of macros. Switched to just
	  checking the PATCHLEVEL macro.
	- Yoshida Masato <yoshidam@inse.co.jp> provided the EUC-JP encodings
	  (the corresponding XML files are in XML::Encoding 1.01 or later.)
	- With the advice of MURATA Makoto <murata@apsdc.ksp.fujixerox.co.jp>,
	  removed the Shift_JIS encoding and replaced it with 4 variations
	  he provided. He also provided an explanatory message.
	- Added the recognized_string method to Expat, deprecating
	  default_current.
	- Now using expat Version 19981122 from James Clark's test directory
	  (this fixes another bug with external entity reference handlers)
	- Added a default external entity handler that only accesses file:
	  based URLs.
2.17 Sun Dec 13 17:39:58 EST 1998
	- Replaced uses of malloc, realloc, and free with New, Renew,
	  and Safefree respectively
	- In Expat.pm, fixed methods in_element and within_element to
	  work correctly with namespaces.
	- xmlfilter - Substitute quoted equivalents for special characters
	  in attribute values.
	- position_in_context was off by one line when position was at
	  the end of line.
	- For the context methods in Expat.pm, do the right thing when
	  the context list is empty.
	- Added methods xpcroak and xpcarp to Expat.
	- Alberto Accomazzi <alberto@cfa0.harvard.edu> noted that perl
	  releases 5.005_5* (the pre 5.006 development versions) won't
	  accept sv_undef (and related constants) anymore and we have
	  to switch to PL_sv_...
	- Alberto also reported a warning in the newer versions of
	  IO::Handle about input_record_separator not being treated on
	  a per-handle basis.
	- Fixed bug that Jon Udell <udell@top.monad.net> reported in
	  Stream style: Text handler most of the time didn't see proper
	  context.
	- Added XML::Parser::Expat::load_encoding function and support
	  for external encodings.
2.16 Tue Oct 27 22:27:33 EST 1998
	- Fixed bug reported by Enno Derksen <enno@att.com>:
          Now treats parameter entity declarations correctly. The entity
	  handler sees the name beginning with '%' if it's a parameter
	  entity declaration.
	- Nigel Hutchison <nwoh@software-ag.de> pointed out that stream.t
	  wasn't portable off Unix systems. Replaced with portable version.
	- Fixed bug reported by Enno Derksen <enno@att.com>:
	  XML Declaration was firing off both XMLDecl handler *and* Default
	  handler.
	- Added option NoExpand to Expat to turn off expansion of entity
	  references when a default handler is set.
2.15 Tue Oct 20 14:50:11 EDT 1998
	- In Expat's parse method, account for undefined previous
	  record separators.
	- Simplify a couple of Expat methods.
	- Re-ordered Changes entries to put latest changes first.
	- In XML::Parser::new, set Handlers if not already set
	- New Handler (XMLDecl) for handling XML declarations
	- New Handler (Doctype) for handling DOCTYPE declarations
	- New Handler (Entity) for handling ENTITY declarations in
	  the internal subset.
	- New Handler (Element) for handling ELEMENT declarations in
	  the internal subset.
	- New Handler (Attlist) for handling ATTLIST declarations in
	  the internal subset.
	- Documented new handlers
	- Added t/decl.t to test new handlers
2.14 Sun Oct 11 22:17:15 EDT 1998
	- Always use method calls for streams.
	- Use perl's input_record_separator to find delimiter (i.e. each
	  "line" is an entire XML doc with delimiter appended)
	- Deal with line being longer than buffer.
2.13 Thu Oct  8 16:58:39 EDT 1998
	- Fixed a major oops in Expat.xs where I was trying to decrement
	  a refcnt on an unallocated SV, leading to a segment violation.
	  (Why did this show up on HPUX but not Linux?)
2.12 Thu Oct  8 00:05:10 EDT 1998
	- Incorporated fix to t/astress.t from <fletch@phydeaux.org> (Mike
	  Fletcher).
	- Change to xmlstats from <dblack@candle.superlink.net> (David
	  Alan Black)
	- Access Handlers_Setters in Expat and Handler_Types in Parser
	  through object reference (following admonition in perltoot
	  about class data.)
	- Added Stream_Delimiter option to Expat.
	- In the parse_stream function in Expat.xs, if we either have a
	  Stream_Delimiter or if there's no file descriptor, use method
	  calls instead. For Stream_Delimiter in particular, the function
	  now uses the getline method so it can check for the delimiter
	  without consuming stuff past the delimiter from the stream.
2.11 Sun Oct  4 22:15:53 EDT 1998
	- Swapped out local patch for expat and swapped in James Clark's
	  patch.
	- Pass on all Parser attributes (other than those excluded by
	  Non_Expat_Options) to the instance of Expat created at parse time.
	- New method for Expat:  generate_ns_name
	- Split test.pl into t/*.t and change Makefile.PL so we don't do a
	  useless descent into Expat subdir for testing.
	- Stop the numeric warning for eq_name and namespace method.
2.10 Fri Sep 25 18:36:46 EDT 1998
	- Uses expat Version 19980924
	  (with local patch - see Expat/expat/xmlparse/xmlparse.c.diff)
	- Use newSVpvn when PERL_VERSION >= 5.005
	- Completed xmlfilter
	- Added support for namespace processing:
	    o  Namespaces option to XML::Parser and XML::Parser::Expat
	    o  Two new methods in Expat:
		namespace - to return namespace associated with name
		eq_name   - compare 2 names for equality across namespaces.
	- Use expat's new SetDefaultHandlerExpand instead of SetDefaultHandler
	  so that entity expansion may continue even if the default handler
	  is set.
	- Moved test.pl back up main level and changed to work with XML::Parser
	- Added tests for namespaces
2.09 Fri Sep 18 10:33:38 EDT 1998
	- Fixed errors that caused -w to fret in XML::Parser.
	- Fixed depth method in XML::Parser::Expat
	- There were a few places in Expat.xs where garbage strings may
	  have been returned due to the expat library giving us zero-length
	  strings. Fixed by using a local version of newSVpv where length
	  means length, even when zero.
	- The default handler setter in Expat.xs, was inappropriately setting
	  cbv->dflt_sv when there was a null handler.
2.08 Thu Sep 17 11:47:13 EDT 1998
	- Make XML::Parser higher-level re-usable parser objects. Old object
	  now becomes XML::Parser::Expat.
	- The XML::Parser object now supports the style mechanism very close
	  to that in the 1.0 version.
2.07 Wed Sep  9 11:03:43 EDT 1998
	- Added some samples (xmlcomments & xmlstats)
	- Now requires 5.004 (due to sv_catpvf)
	- Changed Makefile.PL to allow automatic manification
	- Added a test that reads xml spec (to check buffer boundary errors)
2.06 Tue Sep  1 10:40:41 EDT 1998
	- Fixed the methods current_line, current_byte, and current_column
	- Added some tests
2.05 Mon Aug 31 15:29:42 EDT 1998
	- Made Makefile.PL changes suggested by Murray Nesbitt
	  <murray@ActiveState.com> to support building on Win32
	  and for making PPM binaries.
	- Added method parse
	- Changed parsestring and parsefile to use new parse method
	- Deprecated parsestring method
	- Improved error handling in the ExternEnt handler
2.04 Wed Aug 26 13:25:01 EDT 1998
	- Uses expat Version 1.0 of August 14, 1998
	- Some document changes
	- Changed dist section in Makefile.PL
	- Added ExternEnt handler
	- Added tests for ExternEnt
2.03 Fri Aug 21 17:19:26 EDT 1998
	- Changed InitEncoding to ProtocolEncoding. Default to none.
	  Pass null string to expat's ParserCreate when there is no
	  ProtocolEncoding.
	- Fixed bug in parsefile & parsestring where they were referring
	  to an ErrorContext *method* instead of a field.
	- Fixed position_in_context bugs:
		-- 'last' in do {} while ();
		-- insert newline before pointer when no following newline
		   in buffer.
	- Added some additional tests
2.02 Thu Aug 20 14:05:08 EDT 1998
	- Fixed parsefile problem reported by
	  "Robert Hanson" <robertha@zenweb.com>, using a modification of
	  his suggested fix.
	- Responded to problem reported by
	  Bart Schuller <schuller+perl-xml@lunatech.com>
	  by pre-expanding parts of the XML_UPD macro to avoid confusing
	  some versions of gcc.
	- Changed the constructor to take the option InitEncoding, which
	  gets passed to the ParserCreate call. When not given, defaults
	  to UTF-8.
	- Added method position_in_context
	- Added Constructor option ErrorContext and added reporting of
	  errors in context.
2.01 Wed Aug 19 11:42:42 EDT 1998
	- Added methods:
		default_current, base, current_line, current_column,
		current_byte, context
	- Added some tests
	- parsestring and parsefile now croak if they're re-used
	- Filled in some documentation
2.00 Mon Aug 17 12:01:33 EDT 1998
	- repackaged with James Clark's most recent expat
	- changed to an API closer to expat
1.00 March 1998 
	- Larry Wall's original version
