Revision history for Perl extension PPI

0.906 Thu Apr 28 2005
	- Completed location support and added related unit tests
	- Added API for future support of tab widths

	- Removed PPI::Element::_line
	- Removed PPI::Element::_col
	- Fixed bugs in PPI::Document::index_location
	- Fixed bugs in PPI::Element::location
	- Added 12_location.t unit test
	- Added PPI::Document::tab_width method
	- Added PPI::Normal::Standard::remove_useless_attributes
	  (to remove the ->{tab_width} attributes and later other things)

0.905 Wed Apr 20 2005
	- Completely forgot to write unit tests for PPI::Util,
	  and a bug slipped in. Fixed and added tests

	- Fixed bug in PPI::Util::_Document
	- Added 11_util.t

0.904 Wed Apr 20 2005
	- Improvements to PPI::Normal
	- Method renaming to parse-time PDOM private methods
	- Various bug fixes and POD tweaks
	- Added PPI::Util

	- Partly added Layer 2 to PPI::Normal
	- Added function PPI::Normal::Standard::remove_useless_pragma
	- Added function PPI::Normal::Standard::remove_statement_seperator
	- Added function PPI::Normal::Standard::remove_useless_return
	- Renamed _on_line_start to __TOKENIZER__on_line_start
	- Renamed _on_line_end to __TOKENIZER__on_line_end
	- Renamed _on_char to __TOKENIZER__on_char
	- Renamed _scan_for_end to __TOKENIZER__scan_for_end
	- Renamed _commit to __TOKENIZER__commit
	- Renamed _is_an_attribute to __TOKENIZER__is_an_attribute
	- Renamed _literal to __TOKENIZER__literal
	- Renamed _opposite to __LEXER__opposite
	- Fixed bug in PPI::Statement::Package::namespace
	- Added unit tests for PPI::Statement::Package
	- Added (currently mostly internal) PPI::Util
	- Added exportable function PPI::Util::_Document

0.903 Fri Mar 25 2005
	- PPI::Document and other PPI::Node-subclasses will now implicitly
	  DESTROY correctly.
	- Now that is just a module loader, merge the main
	  documentation from PPI::Manual back into it again.

	- Added use of Scalar::Util::weaken for all %_PARENT writes
	- Uncovered critical bug in Clone, so we use Storable::dclone
	  for now, until Clone is fixed.
	  This resolves #11552
	- Added dependency on Storable 1.13
	- Moved all PPI::Manual content to PPI and relinked
	  This resolves #11803
	- Removed lib/PPI/Manual.pod
	- Added the standard 99_pod.t to check POD
	- Fixed a POD bug in

0.902 Sun Feb  6 2005
	- Added Document Normalization functions from old Perl::Compare
	  (although it is very very limited in function at this point)

	- Added class PPI::Normal
	- Added class PPI::Normal::Standard
	- Added class PPI::Document::Normalized
	- Added method PPI::Document->normalize
	- Bug: ->clone was going to all the trouble to build a clone,
	       but then returning the original :( Fixed

0.901 Sat Jan 29 2005
	- Moved all up-to-date code over to SourceForge
	- Various fixes to allow the release of File::Find::Rule::PPI

	- Got all modules synchronising their versions correctly
	- Moved to SourceForge CVS repository
	- Changed all files over to the new CVS directory layout
	- Fixed bug in PPI::Node::find_first
	- Added unit tests for PPI::Node::find_first
	- Added unit tests for PPI::Node::find_any
	- Added a stub and docs for PPI::Statement::stable

0.900 Mon Jan 17 2005
	- Final removal of PPI::Base
	- Completed majority of crash bugs in the Tokenizer

	- Fixed Tokenizer Bug C< @foo = <<EOF; > seen as ::Readline
	- Fixed Tokenizer Bug C< (<<EOF) > seen as ::Readline
	- Fixed Tokenizer Bug C< q'foo bar' > parsed incorrectly
	- Fixed bug in PPI::Token::_QuoteEngine::_scan_quote_like_operator_gap
	- Fixed Tokenizer Bug C< $foo:'<undef>' > sees symbol $foo:'
	- Fixed Tokenizer Bug C< $#arrayindex > was seen as a Symbol
	- Fixed Tokenizer Bug C< %2 > was seen as a Symbol
	- Fixed Tokenizer Bug C< &64 > was seen as a Symbol
	- Fixed Tokenizer Bug C< $::| > is actually a Magic
	- Fixed Tokenizer Bug C< @0 > is a Magic
	- Deleted PPI::Base
	- Added $PPI::Element::errstr
	- Added basic private error methods to PPI::Element
	- PPI::Element::significant now returns '' as false
	- PPI::XS - Added all C<significant> methods

0.846 Mon Jan 17 2005
	- Added proper support for <FILE>
	- Last release before beta 1 if all looks good

	- Added class PPI::Token::QuoteLike::Readline
	- Added
	- Added support for <>
	- A few other minor bug fixes

0.845 Sat Jan 15 2005
	- Adding integration with PPI::XS, autoloading if installed

	- Added $PPI::XS_COMPATIBLE and $PPI::XS_EXCLUDE variables to guide integration
	- Don't autoload PPI::Document, always load
	- Load in PPI::XS whenever it is installed
	- Loading and depending on Class::Inspector
	- PPI::Element::significant implemented in XS (as a trial)

0.844 Fri Jan 14 2005
	- Found a massive performance bug when parsing large perl constructs
	- Fixed some install problems

	- PPI::Node::schild was copying the entire of it's child array each call.
	  This was causing massive slowdowns when ->{children} got large. Fixed.
	- The core tests still expect Transform to be in the core. Fixed.

0.843 Tue Jan 12 2005
	- Starting the process of removing PPI::Base.
	  It only does does error handling now, which will be split up.
	- Fixing some packaging and "play well with others" issues

	- Randal Schwartz pointed out t/06... wouldn't working for him.
	  It appears when Test::More bug CPAN #8385 was fixed, we broke.
	- We now include build-time-only dependencies in the installer
	- Although unusable, PPI::Document::Normalized's version fell out
	  of sync with the rest of the distribution. Fixed.
	- PPI::Tokenizer no longer inherits from PPI::Base
	- Added class variable $PPI::Tokenizer::errstr
	- Added class method PPI::Tokenizer->errstr
	- Fixed Tokenizer Bug: C< y => 1 > was being seen as a regex
	- Fixed Tokenizer Bug: C< <<''; > was dying because I expected at
	  least one character
	- Fixed Tokenizer Bug: C< $foo->{s} > was being seen as a regex

0.842 Tue Jan 11 2005
	- Lots of debugging based on Tinderbox results

	- Fixed MANIFEST.SKIP to removed PPI::Transform and PPI::Tinderbox
	  from the core PPI distribution (like they should be)
	- Optimised the previous #9582 to not have to run for EVERY word,
	  only those where it might be needed.
	- Corrected a use of QuoteLike::Execute to QuoteLike::Backtick
	- Fixed CPAN #9598 Tokenizer Bug: C< qx( $command ) >
	- Fixed CPAN #9614 Tokenizer Bug: C< $foo << 16 >
	- Set the properly includive regex for << '...' here-doc
	- Added an very early filter to prevent non-basic chars going in

0.841 Mon Jan 10 2005
	- Completed much more documentation on the core classes
	- PPI::Tester back in sync again (seperate distribution)
	- PPI::Processor and PPI::Tinderbox completed (seperate distribution)

	- Documented PPI::Tokenizer
	- PPI::Document->new( $source ) added as a convenience
	- PPI::Lexer::lex_file can now be called statically
	- PPI::Lexer::lex_source can now be called statically
	- PPI::Lexer::lex_tokenizer can now be called statically
	- Fixed a small bug in PPI::Dumper::print
	- Fixed CPAN #9582 Tokenizer Bug: C< sub y { } # Comment >
	- Fixed similar case with C< foo->y() >

0.840 Thu Dec 21 2004
	- Changed the PPI summary to no longer use the devisive word "parse"
	  Now: "PPI - Analyze and manipulate Perl code without using perl itself"
	- Total rewrite of all the ->location code
	- Upgrading MakeFile.PL to Module::Install
	- Fixed #CPAN 8752 (a round-trip edge case bug)
	- Added 08_regression.t to do code/dump regression testing for lexer bugs
	- Completed (hopefully) HereDocs conversion to a single complex token
	- PPI is now compatible with (although not dependant)

	- Added PPI::Node::find_first object method
	- Changed PPI::Node::find_any to just call PPI::Node::find_first
	- Added PPI::Element::first_token object method
	- Added PPI::Element::last_token object method
	- Made a partial-removal-capable PPI::Element::_flush_locations
	- PPI::Document::flush_locations uses PPI::Element::_flush_locations
	- PPI::Document::index_locations is here-doc sane
	- Added PPI::Token::HereDoc::heredoc object method
	- Added PPI::Token::HereDoc::terminator object method
	- Documented PPI::Token::HereDoc
	- Added a HereDoc code/dump test to 05_lexer_practical.t
	- Added PPI::Document::serialize, which replaces the use of
	  ->content for generating the actual string to write out to
	  files when saving Documents.
	- File::Spec reduced from dependency to build dependency
	- Updated Test::ClassAPI dependency to newest version
	- Enabled API collision detection in 02_api.t
	- Updated Class::Autouse dependency to newest version

0.840_01 Tue Dec 21 2004
	- Perl Foundation Funding Commences
	- Changes separated into General and Details from here one
	- Complete re-organisation of the quote-like token classes.
	  Any and all code that works with quotes will be broken.
	- Gave up on the old PPI::Query code and wrote a complete new and
	  much thinner implementation based roughly on the API of
	  PPI::Find uses the &wanted function (which also has a slightly
	  different API to the old one) but has the ->in style search methods.
	  It should be relatively easy for someone to write PPI::Find::Rule
	  on top of it.
	- PPI::Transform is thus temporarily stale

	- Introduced a bug for C< foreach $foo () > and caught/fixed it
	  during the changeover.
	- Changed PPI::Lexer::Dump to PPI::Dumper
	- API Freeze PPI::Find
	- API Freeze PPI::Dumper
	- Documented PPI::Find
	- Documented PPI::Dumper

0.831 Fri Nov  5 2004
	- Overloaded PPI::Document bool => true
	- Overloaded PPI::Document ""   => content
	  (That is, ::Documents stringify to their content)
	- Fixed PPI::Document::save
	- Merged Leon Brocard's docs patch
	- Cleaned up PPI::Node::_condition and documented conditions better (fixed #7799)
	- Allow dropping of the initial PPI:: in class search conditions
	- Fixed two instances of File::Slurp::read_file being called as a method

0.830 Mon Sep 27 2004
	- Added PPI::Statement::Package::file_scoped object method
	- Handle potentially dangerous C< sub foo ($$ > safer
	- Resolve C< sub BEGIN { } > to PPI::Statement::Scheduled correctly
	- Resolve C< sub () { 1 }; > to PPI::Statement correctly
	- API Freeze PPI::Statement::Package
	- API Freeze PPI::Statement::Scheduled
	- API Freeze PPI::Statement::Sub
	- Documented PPI::Statement
	- Documented PPI::Statement::Package
	- Documented PPI::Statement::Scheduled
	- Documented PPI::Statement::Sub
	- Documented PPI::Document::Fragment

0.829 Sat Sep 25 2004
	- Changed PPI::Token::SubPrototype to PPI::Token::Prototype
	- Added PPI::Token::Prototype::prototype object method
	- Added PPI::Statement::Sub::prototype object method
	- Added PPI::Statement::Sub::block object method
	- Fixed PPI::Statement::Include::version

0.828 Sun Aug  8 2004
	- Changed PPI::Token::DashedBareword to PPI::Token::Quote::Dashed
	- Changed PPI::Token::Bareword to PPI::Token::Word
	- Vastly improved PPI::Manual

0.827 Thu Aug  5 2004
	- Added PPI::Token::Seperator class ( for __DATA__ and __END__ )
	- Added better Tokenizer handling of __DATA__ and __END__
	- Added better Lexer handling of __DATA__ and __END__
	- Fixed some version inconsistencies

0.826 Sat Jul 31 2004
	- Added PPI::Element::statement object method
	- Added PPI::Transform abstract class
	- Sped up the 'bool' overload for PPI::Element
	- Added PPI::Element::snext_sibling object method
	- Added PPI::Element::sprevious_sibling object method
	- Added PPI::Element::insert_before object method placeholder
	- Added PPI::Element::insert_after object method placeholder
	- Changed {elements} to {children} to match PPI::Node definitions
	- Added PPI::Node::first_element object method
	- Added PPI::Node::last_element object method
	- Added PPI::Element::next_token object method
	- Added PPI::Element::previous_token object method
	- Added PPI::Token::Symbol::symbol object method

0.825 Mon Jul 26 2004
	- Added PPI::Statement::Include::type object method
	- Added PPI::Statement::Include::module object method
	- Added PPI::Statement::Include::pragma object method
	- Added PPI::Statement::Include::version object method
	- Overloaded == as "the same object" for PPI::Element
	- Overloaded eq as "->content is the same" for PPI::Element
	- Overloaded bool as always true, to prevent an error
	- Added PPI::Statement::Package::namespace object method
	- 100% round-trip safe. What goes in, will come out.
	- Reduced leaks by 95%. Process size 30meg after 5000 files.
	  Still some leaks remaining when Lexing errors out.
	- Seperated largest Tokens into their own files.
	  This aligns token class structure with that of ::Statement and ::Structure
	- Rewrote PPI::Node::DESTROY several times while hunting down more leaks
	- Fixed Tokenizer crash on empty subroutine prototypes such as C< sub foo() {} >
	- Treat unexpected braces as an implicit close, to make the lexer more resilient
	- Added PPI::Statement::UnmatchedBrace (name suggested by Abhijit Menon-Sen)
	  to handle closing braces found at the base of a Document.
	- Enabled foo'bar package notation again.
	- Getting close to the first 0.900 series beta release

0.824 Wed Jul 21 2004
	- Removed a 6 meg tmon.out file I accidentally bundled

0.823 Wed Jul 21 2004
	- Added PPI::Document::Fragment class
	- Added PPI::Node::schildren object method
	- Completed compound statement parsing
	- Lexer is now officially feature complete

0.822 Wed Jul 21 2004
	- Filling out the API test as much as possible
	- Added PPI::Statement::label object method
	- Moved PPI::Structure::elements object method to PPI::Node::elements
	- Re-organised statement parsing to better implement ::Compound statements
	- Added PPI::Statement::Data class
	- Added PPI::Statement::End class
	- Re-organised the _lex_statement, _statement_continues stuff, ready for while
	- Added PPI::Lexer::_lex_statement_end to handle PPI::Statement::End properly
	- Organising 02_api.t was getting hard, so added implicit Module=class to Test::ClassAPI

0.821 Mon Jul 19 2004
	- Cleaned up test data files directories
	- Added PPI::Statement::Variable::type object method
	- Added PPI::Statement::Variable::variables object method
	- Added some more classes to the API testing
	- Started 07_tokens.t for testing particular token classes
	- Added PPI::Token::Symbol::canonical object method (and tests)
	- PPI::Token::Magic now ISA PPI::Token::Symbol
	- PPI::Element::clone now fixes _PARENT links for Nodes

0.820 Mon Jul 19 2004
	- Added Round-Trip-Safe testing for all PPI files
	- Added PPI::Node::find_any object method
	- Added PPI::Node::contains object method
	- Continuing the never ending addition of tests
	- Structure open and close brace tokens now see the Structure as their parent
	- Removed the sample application, to streamline the core install
	- Removed dependencies for the sample application
	- Removed custom META.yml, as now no longer needed

0.819 Mon Jul 14 2004
	- Many parts of PPI are VASTLY changed in this revision
	- Breaks API compatibility heavily
	- Adds dependency on List::MoreUtils
	- Added PPI::Lexer support for CHECK blocks
	- Added PPI::Document::load method
	- Added PPI::Document::save method
	- Added PPI::Document::index_locations method
	- Added PPI::Document::flush_locations method
	- Added PPI::Element::top method
	- Added PPI::Element::document method
	- Renamed PPI::Element::extract -> PPI::Element::remove
	- Added test script for element-y stuff
	- Optimisation across the board using List::Any
	- Added PPI::Node::first_child method
	- Added PPI::Node::last_child method
	- Added PPI::Element::clone method
	- Removed Filehandle support from PPI::Tokenizer, to allow the
	  ability to rollback source lines into the buffer if needed.
	- Added POD documentation for PPI::Element
	- Added POD documentation for PPI::Node
	- Added POD documentation for PPI::Document

0.818 Mon Jul  5 2004
	- Changed lib/PPI/ to lib/PPI/Manual.pod
	- Added documentation for PPI::Lexer
	- Fixed the misparsing of s{//}{\}
	- More clues added for deciding "slash or regex"
	- Removed PPI::Batch from the default distribution
	- Replaced File::Flat with File::Slurp to reduce dependencies

0.817 Thu Jul  1 2004
 	- Fixed the misparsing of $#{ }
 	- Changed PPI::ParentElement to PPI::Node and moved it to it's own file
	- Changed PPI::Common to PPI::Base
	- Fixed PPI::Node::find
	- Added PPI::Node::prune
	- Started to add a little more class structure documentation
	- Tried to make the DESTROY sequence of events work better

0.816 Tue Jun 29 2004
	- Solved the "last token in file parses wrong" bug

0.815 Sun Jun 27 2004
	- Fixed a bug with the detection of @- and @+
	- Added support for @*
	- Added missing classmap entry for ^ to ::Token::WhiteSpace
	- Added support for arcane "foo"x10 idiosyncracy

0.814 Sat Jun 26 2004
	- Added the PPI tester, a desktop-based interactive debugger, which
	  should greatly accelerate finding and fixing both ::Tokenizer
	  and ::Lexer bugs. This will probably end up as a seperate
	  distribution though, as it has a dependency on wxPerl.

	- Fixed the misparsing of Foo::Bar::Baz
	- Fixed the misparsing of *100
	- Fixed the misparsing of Class::->method properly, or rather Foo::
	- Tokenizer correctly identifies labels
	- Changed PPI::Statement::Flow to PPI::Statement::Compound
	- Removed the extra null whitespace token appearing after a bareword
	  at the end of a file.
	- -X operator are recognised correctly, although not at end of file
	- Lexer detects subroutine and if () statement ends correctly

0.813 Sat Jun 26 2004
	- PPI::Lexer is now structurally complete

0.812 Tue Jun 22 2004
	- No changes to PPI itself.
	- With the addition of Test::ClassAPI 'complete' support,
	  upgraded 02_api.t to use it. Fixed a few small house-keeping bugs.

0.811 Mon Jun 21 2004
	- Added support for subroutine attributes
	- Fixed some problems with anonymous subroutines and prototypes
	- $#$foo parses as (Cast,Symbol) now, not (Magic,Symbol)

0.810 Mon Jun 14 2004
	- Recognise the _ magic filehandle

0.809 Sat Apr 17 2004
	- No changes to PPI itself.
	  Set the correct number of tests to match changes to Test::ClassAPI

0.808 Sat Apr 17 2004
	- No changes to PPI itself.
	  Upgraded 02_api.t to match changes to Test::ClassAPI

0.807 Sat Apr  3 2004
	- Added a manual META.yml file to stop the bundled private AppLib
	  library from being indexed by CPAN

0.806 Mon Mar 22 2004
	- The $} magic variable is now supported
	- Fixed a "tight sub property" bug ( sub foo:lvalue )

0.805 Sun Sep 28 2003
	- The maximum line length regressed, reseting it to 5000.
	- In PPI::Format::HTML, not any parsing error causing a
	  premature end of tokenizer by adding it in a comment at
	  the end of the file.

0.804 Sat Sep 06 2003
	- Statement and Structure resolution preliminarily work.
	  Some basic types of statements and structures are identified.
	- PPI::Format::Apache has been seperated into a different module

0.803 Sat Sep 06 2003
	- Added very long line protection support.
	  Maximum line length is now 5000.
	- Added bug fixes to the Lexer so that block tree building works
	  mostly OK again, without adding broken duplicate tokens.
	- Added the PPI::Lexer::Dump module, to do Lexer object dumps.

0.802 Sat Aug 23 2003
	- PPI::Format::HTML sends the correct content headers

0.801 Fri Aug 22 2003
	- Moved to a new numbering scheme to get more room before 1.0
	- Always fully load when called under mod_perl
	- Add mod_perl hook to PPI::Format::HTML

0.8 Fixes to the quote parsing engine

0.7 Fixed some minor bugs

0.6 Fixed POD, fixed version number, included $'a as a symbol

0.5  Missing

0.4  Mon Dec 23 10:24:21
        - Some more minor parsing fixes in Tokenizer
        - Completely changed the API from doThis to do_this style
        - Changed API to indicate private methods properly

0.3  Tue Dec 17 10:29:27
	- Restructured a little bit
	- Fixed some mis-parsing cases

0.2  Unknown
	- Added test script

0.1  Thu Dec 06 16:50:23 2002
	- original version