Changelog for HTML-Tree

5.910    2017-04-26  Trial Release by Kent Fredric
    [FIXES]
    * Port 5.04 & 5.05 Fixes
    * Add POD to htmltree RT #116367
    * Speed up is_inside method RT #113415
      - From Todd Rinaldo https://github.com/madsen/HTML-Tree/pull/5
    * Fix extra spaces being added to comments RT #94311
      - From Tomaz Solc
    * Don't needlessly escape characters in element content RT #93431
      - From Tomaz Solc
    * Fix fix for '.' in @INC
      - https://rt.cpan.org/Ticket/Display.html?id=120521

5.909    2014-05-24  Trial Release by Christopher J. Madsen

    [TESTS]
    - Skip LWP::UserAgent tests if the version installed is too old
    - Change 00system.t to use diag so the output is visible

5.908    2014-05-17  Trial Release by Christopher J. Madsen

    [ENHANCEMENTS]
    - New as_lol & content_as_lol methods in HTML::Element
      (Ben Deutsch, GitHub #2)

    [FIXES]
    - as_XML inserted extra whitespace in comments (Toma┼ż Solc, RT #94311)

5.907    2013-09-13  Trial Release by Christopher J. Madsen

    [ENHANCEMENTS]
    - New content_as_HTML & content_as_XML methods in HTML::Element

5.906    2013-07-13  Trial Release by Christopher J. Madsen

    [DOCUMENTATION]
    - Explain that implicit_tags => 0 still returns implicit <html> (RT #86062)
    - typo fixes supplied by David Steinbrunner (GitHub #1)

    [TESTS]
    - Add implicit-tags-off.t

5.905    2013-06-29  Trial Release by Christopher J. Madsen

    [FIXES]
    - as_XML would not allow single-character attribute names (RT #86566)

5.904    2013-06-08  Trial Release by Christopher J. Madsen

    [FIXES]
    - as_text would infinite loop if it encountered undef (RT #83757)

5.903    2013-06-01  Trial Release by Christopher J. Madsen

    [ENHANCEMENTS]
    - $HTML::Element::default_encoding gets its default value from
      $ENV{PERL_HTML_TREE_ENCODING}, so you can restore the old behavior
      without modifying any code (just export PERL_HTML_TREE_ENCODING='').

5.902    2013-03-01  Trial Release by Christopher J. Madsen

    [DOCUMENTATION]
    - minor clarifications

    [TESTS]
    - Add dump.t

5.901    2012-12-22  Trial Release by Christopher J. Madsen

    [TESTS]
    - Fix encoding.t to work on Perl 5.8.9 and 5.10.0

5.900    2012-12-15  Trial Release by Christopher J. Madsen

    [THINGS THAT MAY BREAK YOUR CODE OR TESTS]
    - parse_file (and new_from_file) now try to determine the encoding
      automatically when given a filename (not a filehandle).  To restore
      the old behavior, set the new encoding attribute to the empty string.
      To restore it globally, set $HTML::Element::default_encoding = ''.

    [ENHANCEMENTS]
    - new_from_file & new_from_url now let you set parsing attributes
    - New shortcut constructor new_from_string is like new_from_content,
      but allows you to set parsing attributes
    - New shortcut constructor new_from_http for constructing a tree
      from the content of a HTTP::Message (or subclass like HTTP::Response)
    - Setting the new self_closed_tags attribute to 1 makes TreeBuilder
      handle XML-style self-closed tags (e.g. <a id="a1" />)
    - New child_nodes method makes for simpler recursion
    - New openw and encode_fh methods for writing a file with the
      correct encoding

    [DOCUMENTATION]
    - new actually does take optional attributes
      (It has since at least 3.18, although undocumented, and it did
       not previously work with ignore_ignorable_whitespace.)
    - methods & attributes added in version 4.0 or later are now marked
    - don't recommend the traverse method; give recursive example (RT #48344)

    [TESTS]
    - Add test for self_closed_tags attribute.
    - Clarify skip message in construct_tree.t (RT #81371)

5.05      2017-04-26

    [FIXES]
    * Revert Dist::Zilla Removal
      - https://github.com/jfearn/HTML-Tree/issues/7
      - Vendor note: It should be simpler to compare 5.03 and 5.05
        than to compare 5.04 and 5.05, or 5.03 and 5.04.
      - Fixes RT#12230: Undeclared dep on Test::Fatal
        - https://rt.cpan.org/Ticket/Display.html?id=121230
    * Proper fix for '.' in @INC
      - https://rt.cpan.org/Ticket/Display.html?id=120521

5.04     2017-04-17
   Release by Jeff Fearn

    [FIXES]
    * Remove Distzilla to fix RT #120521 #89820
    * Add POD to htmltree RT #116367
    * Speed up is_inside method RT #113415
      - From Todd Rinaldo https://github.com/madsen/HTML-Tree/pull/5
    * Fix extra spaces being added to comments RT #94311
      - From Tomaz Solc
    * Don't needlessly escape characters in element content RT #93431
      - From Tomaz Solc

5.03     2012-09-22  Release by Christopher J. Madsen

    [THINGS THAT MAY BREAK YOUR CODE OR TESTS]
    - as_HTML no longer indents <textarea> (Tomohiro Hosaka) (RT #70385)

    [FIXES]
    - as_trimmed_text did not accept '0' for extra_chars

    [DOCUMENTATION]
    - Explain that as_text never adds whitespace (RT #66498)
    - Explain what extra_chars can contain for as_trimmed_text.


5.02     2012-06-27  Release by Christopher J. Madsen

    [TESTS]
    - Do not attempt to check result of $! in construct_tree.t
      (The fix in 5.01 was not successful.)


5.01     2012-06-20  Release by Christopher J. Madsen

    [TESTS]
    - Force C locale in construct_tree.t (in non-English locales,
      $! will produce messages in a different language) (RT #77823)
    - Add test for preserving whitespace while parsing.


5.00     2012-06-12  Release by Christopher J. Madsen

   There are only some minor documentation changes since 4.903.
   This is a summary of the most significant changes since 4.2.

    [THINGS THAT MAY BREAK YOUR CODE OR TESTS]
    - Use weak references to avoid memory leaks
      See "Weak References" in HTML::Element for details.
    - new_from_file now dies if the file cannot be opened.  $! records
      the specific problem.  (Previously, you got a tree with a few
      implicit elements.)
    - Some methods normally returning a scalar could return the empty
      list in certain circumstances.  This has been corrected.  The
      affected methods are: address, deobjectify_text, detach, is_inside,
      & pindex.
    - deprecate the Version sub/method.  Use the VERSION method instead.

    [ENHANCEMENTS]
    - add new_from_url (Using LWP) (David Pottage) (RT #68097)

    [DOCUMENTATION]
    - Explain that parse_file (and new_from_file) opens files in binary mode
      BUT THIS IS PLANNED TO CHANGE.


4.903    2012-06-08  Trial Release by Christopher J. Madsen

    [DOCUMENTATION]
    - Explain that parse_file (and new_from_file) opens files in binary mode
      BUT THIS IS PLANNED TO CHANGE.

    [TESTS]
    - test error handling for new_from_file & new_from_url
    - remove use_ok from most tests
      (if the module won't load, the tests can't pass anyway)


4.902    2012-06-06  Trial Release by Christopher J. Madsen

    [THINGS THAT MAY BREAK YOUR CODE OR TESTS]
    - new_from_url now dies if the request fails or the response is not HTML


4.901    2012-06-06  Trial Release by Christopher J. Madsen

    [THINGS THAT MAY BREAK YOUR CODE OR TESTS]
    - new_from_file now dies if the file cannot be opened.  $! records
      the specific problem.  (Previously, you got a tree with a few
      implicit elements.)
    - Some methods normally returning a scalar could return the empty
      list in certain circumstances.  This has been corrected.  The
      affected methods are: address, deobjectify_text, detach, is_inside,
      & pindex.

    [FIXES]
    - new_from_url did not call eof after parsing

    [DOCUMENTATION]
    - Improve SEE ALSO for HTML::TreeBuilder
    - General documentation cleanup


4.900    2012-06-01  Trial Release by Christopher J. Madsen

    [THINGS THAT MAY BREAK YOUR CODE OR TESTS]
    - Use weak references to avoid memory leaks
      See "Weak References" in HTML::Element for details.
    - deprecate the Version sub/method.  Use the VERSION method instead.

    [ENHANCEMENTS]
    - add new_from_url (Using LWP) (David Pottage) (RT #68097)


4.2      2011-04-06  Release by Jeff Fearn

    [FIXES]
    - Tied all $VERSION to HTML::Element to ensure latest package is used
      for all modules. RT #66110
    - Moved perlcritic tests to xt/author
    [DOCUMENTATION]
    - Added text and link to "Perl and LWP" book.
    - Fix Authors is all PM files.


4.1      2010-10-25  Release by Jeff Fearn

    [FIXES]
    - '/' is a valid attribute (pull from tokuhirom) (RT #61809)
    - Change check fo subclasses in as_HTML. (RT #61673)
    - Fix ProhibitThreeArgumentOpen being triggered. (RT #61857)


4.0      2010-09-20  Release by Jeff Fearn

    [THINGS THAT MAY BREAK YOUR CODE OR TESTS]
    - Changes to entity encoding from ord values to XML entities may break
      tests expecting &#00; style encoding.
    - Attribute names are now validated in as_XML and invalid names will
      cause an error.
    - HTML-Tree now requires at least Perl 5.8.0

    [FIXES]
    - Optionally empty tags with content now have close tag. (RT #49932 #41806)
    - Added attribute name validation. (RT #23439)
    - Added span to @TAGS in AsSubs. (RT #55848)
    - Changed tag encoding to human readable form, e.g. &gt;, and stopped
      re-encoding encoded tags (RT #55835)
    - Added no_expand_entities option to disable entity decoding when
      parsing source. (RT #24947)
    - Fix replace_with not setting parent for an array of content.
      (RT #28204 #45495)
    - Removed newline being appended to as_HTML output. (RT #41739)
    - Fix invalid parent for subsclasses. (RT #36247)
    - Fixed #! line in tests (RT #41945)
    - Switched to Module::Build
    - Fixed Perl::Critic errors
    - Added lots of use strict and use warnings
    - Fix PERL_UNICODE breaking tests. (RT #28404)
    - Add check for class type to traverse. (RT #35948)
    - Move attribute name validation to as_XML. (RT #60619)
    - Fix critic test exploding if Test::Perl::Critic isn't installed.
    - Fix annoying message about x.yy_z not being numeric in t/building.t
    - Added extra_chars options to as_trimmed_text (RT #26436)
    - Added catch for broken table tags (RT #59980)
    - Replace parentheses for constants. (RT #58880)
    - Removed build deps Devel::Cover, Test::Pod::Coverage, Test::Perl::Critic.
      (RT #58878)
    - Added create_makefile_pl => 'traditional' to Build.PL (RT #58878)

    [ENHANCEMENTS]
    - (Ricardo Signes RT #26282) The secret hack to allow elements to be created
      from classes other than HTML::Element has been cleaned up and documented
      for the benefit of TreeBuilder subclasses.
      q.v., HTML::TreeBuilder->element_class
    - Added HTML::Element::encoded_content to control encoding of entities on
      output.

   [TESTS]
    - Added test for optionally empty tags, like A.
    - Added test for invalid attribute name.
    - Added more tests for entity parsing.
    - Add parent test from Christopher J. Madsen. (RT #28204)
    - Add subclass test. (RT #36247)

    [DOCUMENTATION]
    - Docs spelling patch from Ansgar Burchardt <ansgar@43-1.org> (RT #55836)
    - Added definition of white space to as_trimmed_text. (RT #26436)


3.23     2006-11-12  Release by Pete Krawczyk <petek@cpan.org>

    [THINGS THAT MAY BREAK YOUR CODE OR TESTS]
    - Mark-Jason Dominus points out that the fix for as_html was not
      proper, and broken behavior should never be codified.  Fixed
      as_html so an empty string doesn't encode entites, instead of
      blaming the behavior on HTML::Entities.  (RT 18571)


3.22     2006-11-11  Release by Pete Krawczyk <petek@cpan.org>

    [THINGS THAT MAY BREAK YOUR CODE OR TESTS]
    - HTML::Element::as_XML now only escapes five characters, instead
      of escaping everything but alphanumerics and spaces.  This is
      more in line with the XML spec, and will no longer escape wide
      characters as two (or more) entities.  Resolves RT 14260.  Thanks
      to Carl Franks and somewhere [at] confuzzled.lu for assistance.

    [FIXES]
    - A string comparison was commented to use lc() on both sides, but
      didn't.  This caused HTML::Element::look_down to not properly find
      elements in certain cases.  Thanks to Andrew Suhachov. (RT 21114)

    [TESTS]
    - Added several new tests and enhanced others.  Thanks to Rocco
      Caputo for t/attributes.t, and several others for providing
      test cases in their RT bugs.

    [DOCUMENTATION]
    - Fixed description of HTML::Element::all_attr_names.  Thanks
      to dsteinbrunner [at] pobox.com for catching it.
    - Fixed example code in HTML::Element::push_content.  Thanks
      to dsteinbrunner [at] pobox.com for catching it. (RT 21293)
    - Fixed description of HTML::Element::as_HTML.  Thanks to
      Mark-Jason Dominus for catching it.  (RT 18569)


3.21     2006-08-06  Release by Pete Krawczyk <petek@cpan.org>

    [FIXES]
    - Updated HTML::Parser requirement to 3.46 to fix a bug in
      tag-rendering.t, noted in RT 20816 and 19796.  Thanks to
      Gordon Lack and Ricardo Signes
    - Fixed HTML::TreeBuilder to not remove &nbsp; where it shouldn't,
      using patch supplied in RT 17481.  Thanks to Chris Madsen.

    [DOCUMENTATION]
    - HTML-Tree has a new maintainer: Pete Krawczyk <petek@cpan.org>


3.20     2006-06-04  Release by Andy Lester

    - No code changes.  Just making sure all notes go to Andy Lester,
      not Sean Burke.


3.19_04  2006-02-01  Trial Release by Andy Lester

    [FIXES]
    - Modified starttag() so that it could render a literal HTML::Element
      correctly. Added a test case for this in tag-rendering.t
      Thanks to Terrence Brannon.


3.19_03  2005-11-25  Trial Release by Andy Lester

    [THINGS THAT MAY BREAK YOUR CODE]
    - The store_declarations() method has been restored, but defaults
      to true instead of false.


3.19_02  2005-11-24  Trial Release by Andy Lester

    [THINGS THAT MAY BREAK YOUR CODE]
    - The store_declarations() method has been removed.
    - Non-closing HTML tags like <IMG> are now rendered as <IMG />.
    - All values in tags are now double-quoted.  Previously, all-numeric
      values weren't quoted.

    [FIXES]
    - The DOCTYPE declaration now always gets put back at the top of
      the recreated document.  Thanks, Terrence Brannon.
    - Non-closing HTML tags like <IMG> are now rendered as <IMG />.
      Thanks to Ian Malpass.
    - All values in tags are now double-quoted.

    [DOCUMENTATION]
    - Updated docs from Terrence Brannon.


3.19_01  2005-11-09  Trial Release by Andy Lester

    - No new functionality.  New tests, though!
      Thanks to the Chicago Perl Mongers for their work.


3.18     2003-09-15  Release by Sean M. Burke <sburke@cpan.org>

    - bugfix to test, adding qr// to look_(down|up)

    - Accepting Iain 'Spoon' Truskett's neat patch for qr// as lookdown
      operators (previously you had to do sub { $_[0]=~ m/.../}).

    - Rewrote some tests, notably parsefile.t, which was pointlessly
      failing because of an incompatibility with an HTML::Parser version.

    - Removed the disused ancient utils "dtd2pm" and "ent" from the dist.

    - Added TODO file.


3.17     2003-01-18  Release by Sean M. Burke <sburke@cpan.org>

    - minor bugfix

      HTML::Element : Making as_HTML('',...) work just like
      as_HTML(undef,...).  Also fixing as_XML's docs to remove mention of
      an unimplemented feature (specifying what characters to escape).


3.16     2002-11-06  Release by Sean M. Burke <sburke@cpan.org>

    - just fixing a doc typo.


3.15     2002-11-06  Release by Sean M. Burke <sburke@cpan.org>

    - a few new features.

    - Added the aliases "descendents" and "find" to HTML::Element.

    - Added a new method "simplify_pres" to HTML::Element.


3.14     2002-10-19  Release by Sean M. Burke <sburke@cpan.org>

    - minor bugfix

      Just fixes a few problems in HTML::Element with the number_lists
      method.


3.13     2002-08-16  Release by Sean M. Burke <sburke@cpan.org>

    - basically a bugfix version

    - It turns out that 3.12 had a hideous HTML::TreeBuilder bug that
      made the whole thing damn near useless.  Fixed.
      Many many thanks to Michael Koehne for catching this!

    - Wrote t/parse.t, to catch this sort of thing from happening again.

    - Fixed a bug that would treat <td> outside any table context
      as <tr><table><td> instead of <table><tr><td>


3.12     2002-07-30  Release by Sean M. Burke <sburke@cpan.org>

    - Added as_trimmed_text method to HTML::Element, as described
      (prophesied?) in the fantabulous new book /Perl & LWP/.

    - Bugfix: fixed unshift_content when given a LoL.  (_parent wasn't
      getting set right.)

    - HTML::Element and HTML::TreeBuilder now enforce at least some
      minimal sanity on what can be in a tag name.  (Notably, no spaces,
      slashes, or control characters.)

    - Semi-bugfix: $element->replace_with(...) can now take LoLs in its
      replacement list.

    - Bumped HTML::Element version up to 3.12 (right from 3.09)

    - Semi-bugfix: as_XML now doesn't use named entities in its return
      value -- it always uses numeric entities.

    - Added behavior: new_frow_lol can now do clever things in list
      context.

    - HTML::Tree -- added blurb for /Perl & LWP/

    - HTML::TreeBuilder -- added blurb for /Perl & LWP/
      Also added a few tweaks to do better with XHTML parsing.
      Added guts() and disembowel() methods, for parsing document fragments.

    - TODO: desperately need to add tests to t/


3.11     2001-03-14  Release by Sean M. Burke <sburke@cpan.org>

    - Bugfix: Klaus-Georg Adams <Klaus-Georg.Adams@sap.com> reported that
      the topmost frameset element in an HTML::TreeBuilder tree wasn't
      getting its _parent attribute set.  Fixed.

    - Minor bugfix: the root element of a new HTML::TreeBuilder tree was
      missing its initial "_implicit" attribute.  Fixed.

    - Two handy new methods in HTML::TreeBuilder:
       - HTML::TreeBuilder->new_from_content(...)
       - HTML::TreeBuilder->new_from_file($filename)
          a.k.a.: HTML::TreeBuilder->new_from_file($fh)


3.10     2001-03-10  Release by Sean M. Burke <sburke@cpan.org>

    - Now bundling three relevent The Perl Journal articles by me:
      HTML::Tree::AboutObjects, HTML::Tree::AboutTrees, and
      HTML::Tree::Scanning.

    - Vadims_Beilins@swh-t.lv observes that $h->push_content(LoL)
      doesn't take care of _parent bookkeeping right.  FIXED.
      John Woffindin <john@xoren.co.nz> notes a similar bug in clone();
      FIXED.

    - Adding no_space_compacting feature to TreeBuilder, at suggestion of
      Victor Wagner <vitus@ice.ru>.

    - Incorporating the clever suggestion (from Martin H. Sluka,
      <martin@sluka.de>) that $element->extract_links's returned LoL
      should contain a third item (for the attribute name) in the
      per-link listref.  I also add a fourth item, the tagname of the
      element.

    - New method, "elementify", in HTML::TreeBuilder.

    - Various improvements and clarifications to the POD in
      HTML::TreeBuilder and HTML::Element.

    - Some new methods in HTML::Element: "number_lists",
      "objectify_text", and "deobjectify_text".

    - HTML::Element and HTML::TreeBuilder versions both bumped up from
      3.08 to 3.10, to keep pace with the HTML::Tree version.


3.09     2001-01-21  Release by Sean M. Burke <sburke@cpan.org>

    - Changed HTML/Element/traverse.pod to HTML/Element/traverse.pm

    - Wrote overview file: HTML/Tree.pm


3.08     2000-11-03  Release by Sean M. Burke <sburke@cpan.org>

    - In Element and TreeBuilder: fixed handling of textarea content --
      Thanks to Ronald J Kimball <rjk@linguist.dartmouth.edu> for
      catching this.

    - In Element: a few internal changes to make it subclassable by the
      forthcoming XML::Element et al.


3.07     2000-10-20  Release by Sean M. Burke <sburke@cpan.org>

    - In Element: made new_from_lol accept existing HTML::Element objects
      as part of the loltree.  Thanks for Bob Glickstein
      <bobg@zanshin.com> for the suggestion.

    - In Element: feeding an arrayref to push_content, unshift_content,
      or splice_content now implicitly calls new_from_lol.

    - In Element: reversed the change in as_HTML/XML/Lisp_form that would
      skip dumping attributes with references for values.  It reacted
      undesirably with objects that overload stringify; to wit, URI.pm
      objects.


3.06     2000-10-15  Release by Sean M. Burke <sburke@cpan.org>

    - In Element: methods added:  $x->id, $x->idf, $x->as_XML,
      $x->as_Lisp_form

    - In Element: internal optimization: as_HTML no longer uses the
      tag() accessor.  Should cause no change in behavior.

    - In Element: as_HTML (via starttag) no longer tries to dump
      attributes whose values are references, or whose names
      are null-string or "/".  This should cause no change in
      behavior, as there's no normal way for any document to parse
      to a tree containing any such attributes.

    - In Element: minor rewordings or typo-fixes in the POD.


3.05     2000-10-02  Release by Sean M. Burke <sburke@cpan.org>

    - In Element: fixed typo in docs for the content_refs_list method.
      Had:
       foreach my $item ($h->content_array_ref) {
      Corrected to:
       foreach my $item (@{ $h->content_array_ref }) {

    - In Element: fixed bug in $h->left that made it useless in scalar
      context.  Thanks to Toby Thurston <toby@wildfire.dircon.co.uk> for
      spotting this.

    - In Element: added new method $h->tagname_map

    - In TreeBuilder: Some minor corrections to the logic of handling TD
      and TH elements -- basically bug fixes, in response to an astute
      bug report from Toby Thurston <toby@wildfire.dircon.co.uk>.

    - In TreeBuilder: Fixed lame bug that made strict-p mode nearly
      useless.  It may now approach usability!

    - This dist contains a simple utility called "htmltree" that parses
      given HTML documents, and dumps their parse tree.  (It's not
      actually new in this version, but was never mentioned before.)

    - In TreeBuilder, a change of interest only to advanced programmers
      familiar with TreeBuilder's source and perpetually undocumented
      features: there is no $HTML::TreeBuilder::Debug anymore.

      If you want to throw TreeBuilder into Debug mode, you have to do it
      at compile time -- by having a line like this BEFORE any line that
      says "use HTML::TreeBuilder":

         sub HTML::TreeBuilder::DEBUG () {3};

      where "5" is whatever debug level (0 for no debug output) that you
      want TreeBuilder to be in.  All the in TreeBuilder that used to say

        print "...stuff..." if $Debug > 1;

      now say

        print "...stuff..." if DEBUG > 1;

      where DEBUG is the constant-sub whose default value set at compile
      time is 0.  The point of this is that for the typical
      compilation-instance of TreeBuilder will run with DEBUG = 0, and
      having that set at compile time means that all the "print ... if
      DEBUG" can be optimized away at compile time, so they don't appear
      in the code tree for TreeBuilder.  This leads to a typical ~10%
      speedup in TreeBuilder code, since it's no longer having to
      constantly interrogate $Debug.

      Note that if you really do NEED the debug level to vary at runtime,
      say:
        sub HTML::TreeBuilder::DEBUG () { $HTML::TreeBuilder::DEBUG };
      and then change that variable's value as need be.  Do this only if
      necessary, tho.

      BTW, useful line to have in your ~/.cshrc:
        alias deparse 'perl -MO=Deparse \!*'
      I found it useful for deparsing TreeBuilder.pm to make sure that
      the DEBUG-conditional statements really were optimized away
      as I intended.


3.04     2000-09-04  Release by Sean M. Burke <sburke@cpan.org>

    - In TreeBuilder: added p_strict, an option to somewhat change
      behavior of implicating "</p>"s.
      Added store_comments, store_declarations, store_pis, to control
      treatment of comments, declarations, and PIs when parsing.

    - In Element: documented the pseudo-elements (~comment, ~declaration,
      ~pi, and ~literal).  Corrected as_HTML dumping of ~pi elements.

    - Removed formfeeds from source of Element and TreeBuilder --
      different editors (and Perl) treat them differently as far as
      incrementing the line counter; so Perl might report an error on
      line 314, but preceding formfeeds might make your editor think that
      that line is actually 316 or something, resulting in confusion all
      around.  Ahwell.


3.03     2000-08-26  Release by Sean M. Burke <sburke@cpan.org>

    - Introduced an optimization in TreeBuilder's logic for checking that
      body-worthy elements are actually inserted under body.  Should
      speed things up a bit -- it saves two method calls per typical
      start-tag.  Hopefully no change in behavior.

    - Whoops -- 3.01's change in the return values of TreeBuilder's
      (internal) end(...) method ended up breaking the processing of list
      elements.  Fixed.  Thanks to Claus Schotten for spotting this.

    - Whoops 2 -- Margarit A. Nickolov spotted that TreeBuilder
      documented a implicit_body_p_tag method, but the module didn't
      define it.  I must have deleted it some time or other.  Restored.


3.02     2000-08-20  Release by Sean M. Burke <sburke@cpan.org>

    - Fixed a silly typo in Element that made delete_ignorable_whitespace
      useless.

    - Made Element's $tree->dump take an optional output-filehandle
      argument.

    - Added (restored?) "use integer" to TreeBuilder.


3.01     2000-08-20  Release by Sean M. Burke <sburke@cpan.org>

    - Now depends on HTML::Tagset for data tables of HTML elements and
      their characteristics.

    - Version numbers for HTML::TreeBuilder and HTML::Element, as well as
      for the package, moved forward to 3.01.

    - Minor changes to HTML::TreeBuilder's docs.

    - HTML::TreeBuilder now knows not to amp-decode text children of
      CDATA-parent elements.  Also exceptionally stores comments under
      CDATA-parent elements.

    - TreeBuilder should now correctly parse documents with frameset
      elements.  Tricky bunch of hacks.

    - TreeBuilder now ignores those pointless "x-html" tags that a
      certain standards-flouting monopolistic American software/OS
      company's mailer wraps its HTML in.

    - Introduced "tweaks" in HTML::TreeBuilder -- an experimental
      (and quite undocumented) feature to allow specifying callbacks
      to be called when specific elements are closed; makes possible
      rendering (or otherwise scanning and/or manipulating) documents
      as they are being parsed.  Inspired by Michel Rodriguez's clever
      XML::Twig module.  Until I document this, email me if you're
      interested.

    - HTML::Element's as_HTML now knows not to amp-escape children of
      CDATA-parent elements.  Thanks to folks who kept reminding me about this.

    - HTML::Element's as_HTML can now take an optional parameter
      specifying which non-empty elements will get end-tags omitted.

    - HTML::Element's traverse's docs moved into separate POD,
      HTML::Element::traverse.

    - Added HTML::Element methods all_attr_names and
      all_external_attr_names.  Fixed bug in all_external_attr.

    - Added HTML::Element method delete_ignorable_whitespace.
      (Actually just moved from HTML::TreeBuilder, where it was
      undocumented, and called tighten_up.)

    - Adding a bit of sanity checking to Element's look_down, look_up.

    - Added some formfeeds to the source of Element and TreeBuilder,
      to make hardcopy a bit more readable.


0.68     2000-06-28  Release by Sean M. Burke <sburke@cpan.org>

    - Fixed doc typo for HTML::Element's lineage_tag_names method.

    - Fixed lame bug in HTML::Element's all_external_attr that made it
      quite useless.  Thanks to Rich Wales <richw@webcom.com> for the bug
      report and patch.

    - Changed as_text to no longer DEcode entities, as it formerly did,
      and was documented to.  Since entities are already decoded by time
      text is stored in the tree, another decoding step is wrong.  Neither
      me nor Gisle Aas can remember what that was doing there in the
      first place.

    - Changed as_text to not traverse under 'style' and 'script'
      elements.  Rewrote as_text's traverser to be iterative.

    - Added a bit of text to HTML::AsSubs to recommend using XML::Generator.


0.67     2000-06-12  Release by Sean M. Burke <sburke@cpan.org>

    Just changes to HTML::Element...

    - Introduced look_up and look_down.  Thanks to the folks on the
      libwww list for helping me find the right form for that idea.
      Deprecated find_by_attribute

    - Doc typo fixed: at one point in the discussion of "consolidating
      text", I said push_content('Skronk') when I meant
      unshift_content('Skronk').  Thanks to Richard Y. Kim (ryk@coho.net)
      for pointing this out.

    - Added left() and right() methods.

    - Made address([address]) accept relative addresses (".3.0.1")

    - Added content_array_ref and content_refs_list.

    - Added a bit more clarification to bits of the Element docs here and there.

    - Made find_by_tag_name work iteratively now, for speed.


0.66     2000-05-18  Release by Sean M. Burke <sburke@cpan.org>

    - Noting my new email address.

    - Fixed bug in HTML::Element::detach_content -- it would return
      empty-list, instead of returing the nodes detached.

    - Fixed big in HTML::Element::replace_with_content -- it would
      accidentally completely kill the parent's content list!
      Thanks to Reinier Post and others for spotting this error.

    - Fixed big in HTML::Element::replace_with -- it put replacers
      in the content list of of the new parent, !but! forgot to update
      each replacer's _parent attribute.
      Thanks to Matt Sisk for spotting this error.


0.65     2000-03-26  Release by Sean M. Burke <sburke@netadventure.net>

    - Important additions to HTML::Element :

      - Totally reimplemented the traverse() method, and added features,
        now providing a somewhat-new interface.  It's still
        backwards-compatible both syntactically and semantically.

      - Added methods: content_list, detach_content, replace_linkage,
        normalize_content, preinsert, postinsert, and has_insane_linkage.

      - $h->attr('foo', undef) now actually deletes the attribute
        'foo' from $h, instead of setting it to undef.  Hopefully
        this won't break any existing code!

    - Rearranged the order of some sections in the Element docs
      for purely pedagogical reasons.

    - Bugfix:  $tree->clone failed to delete the internal
      _head and _body attributes of the clone (used by TreeBuilder),
      $tree->clone->delete ended up deleting most/all of the original!
      Fixed.  Added cavets to the docs warning against cloning
      TreeBuilder objects that are in mid-parse (not that I think most
      users are exactly rushing to do this).
      Thanks to Bob Glickstein for finding and reporting this bug.

    - Added some regression/sanity tests in t/

    - A bit more sanity checking in TreeBuilder: checks for _head and
      _body before including it.

    - Modded TreeBuilder's calls to traverse() to be use new [sub{...},0]
      calling syntax, for sake of efficiency.

    - Added some undocumented and experimental code in Element and
      TreeBuilder for using HTML::Element objects to represent
      comments, PIs, declarations, and "literals".


0.64     2000-03-08  Release by Sean M. Burke <sburke@netadventure.net>

    - Bugfix:  $element->replace_with_content() would cause
      a fatal error if any of $element's content nodes were
      text segments.  Fixed.


0.63     2000-03-08  Release by Sean M. Burke <sburke@netadventure.net>

    - Fixed a typo in the SYNOPSIS of TreeBuilder.pm: I had "->destroy" for
      "->delete"!

    - Added $element->clone and HTML::Element->clone_list(nodes) methods,
      as Marek Rouchal very helpfully suggested.

    - $tree->as_HTML can now indent, hopefully properly.  The logic to do
      so is pretty frightening, and regrettably doesn't wrap, and it's
      not obvious how to make it capable of doing so.

    - $tree->as_text can now take a 'skip_dels' parameter.

    - Added $h->same_as($j) method.

    - Added $h->all_attr method.

    - Added $h->new_from_lol constructor method.


0.62     1999-12-18  Release by Sean M. Burke <sburke@netadventure.net>

    - Incremented HTML::AsSubs version to 1.13, and HTML::Parse version
      to 2.7, to avoid version confusion with the old (<0.60) HTML-Tree
      dist.

    - Re-simplified the options to HTML::Element::traverse, removing the
      verbose_for_text option.  (The behavior that it turned on, is now
      always on; this should not cause any problems with any existing
      code.)

    - Fixed HTML::Element::delete_content, and made an
      HTML::TreeBuilder::delete to override it for TreeBuilder nodes,
      which have their own special attributes.

    - HTML::Element::find_by_attribute, find_by_attribute, and get_attr_i
      now behave differently in scalar context, if you're the sort that
      likes context on method calls.  HTML::Element::descendant is now
      optimized in scalar context.

    - Fixed up some of the reporting of lineages in some $Debug-triggered
      messages.

    - Fixed minor bug in updating pos when a text node under HTML
      implicates BODY (and maybe P).

    - You should not use release 0.61


0.61     1999-12-15  Release by Sean M. Burke <sburke@netadventure.net>

    - Versions in this dist:
       HTML::Parse:  2.6
       HTML::TreeBuilder: 2.91
       HTML::Element:  1.44
       HTML::AsSubs: 1.12

    - No longer including the Formatter modules.

    - Lots of new methods and changes in HTML::Element; reorganized docs.

    - Added new HTML tags to HTML::Element's and HTML::TreeBuilder's
      internal tables.

    - Reworked the logic in HTML::TreeBuilder.  Previous versions dealt
      badly with tables, and attempts to enforce content-model rules
      occasionally went quite awry.  This new version is much less
      agressive about content-model rules, and works on the principle
      that if the HTML source is cock-eyed, there's limits to what can be
      done to keep the syntax tree from being cock-eyed.

    - HTML::TreeBuilder now also tries to ignore ignorable whitespace.
      The resulting parse trees often have half (or fewer) the number of
      nodes, without all the ignorable "     " nodes like before.


0.53     1999-12-15  Release by Gisle Aas <gisle@aas.no>

    - Make it compatible with HTML-Parser-3.00


0.52     1999-11-10  Release by Gisle Aas <gisle@aas.no>

    - Fix SYNOPSIS for HTML::FormatText as suggested by
      Michael G Schwern <schwern@pobox.com>

    - Updated my email address.


0.51     1998-07-07  Release by Gisle Aas <aas@sn.no>

    - Avoid new warnings introduced by perl5.004_70


0.50    1998-04-01  Release by Gisle Aas <aas@sn.no>

    - the HTML::* modules that dealt with HTML syntax trees
      was unbundled from libwww-perl-5.22.