2009-06-28  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |rp| now takes normali phrasing content (HTML5 revision
	3217).

2009-06-28  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |ondataunavailable| has been removed (HTML5 revision
	3252).

2009-06-28  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Block-level contents in |figure|'s |legend| and
	|caption| are now allowed (HTML5 revision 3329).

2008-12-15  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm ($HTMLDatetimeAttrChecker): Removed.
	($GetDateTimeAttrChecker): Added.
	($GetHTMLFloatingPointNumberAttrChecker): Set |number_value| for
	later use.
	(ins/@datetime, del/@datetime): Changed to use newer definitin of
	"global date and time string".
	(input's date- and time-related, and type=number and type=range
	control types): Implemented value="", min="", and max="".

2008-12-13  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Implemented <object form> and <legend form>.

2008-12-13  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Updated definitions for attributes for form submission
	on |form| and submit buttons (action="", method="", enctype="",
	target="", and novalidate="").

2008-12-12  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Added checking for the uniqueness of |autofocus=""|
	attribute.  Implemented |name=""| attribute for form controls.
	Added U+000C into character class of space characters (it should
	have been, but was not in some of regular expressions).  Updated
	definitions for |output| elements.
	
2008-12-12  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Updated definitions for |datalist|, |optgroup|,
	|option|, and |textarea| elements.

2008-12-12  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Updated definitions for |select|.

2008-12-12  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Updated definitions for |button|.

2008-12-12  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Implemented <input accept> and <form accept>.  Raise a
	SHOULD-level error if @pattern but no @title.

2008-12-11  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Added support for |pattern| attributes.

2008-12-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Implemented <input type=file multiple> and <input
	placeholder>.

2008-12-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Implemented <input list>.

2008-12-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Implemented <input type=color>.

2008-12-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Implemented <input multiple>, <input type=search>.
	Implemented <input value> validation for |type|s |text|, |search|,
	|email|, |url|, and |password|.

2008-12-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Use |Message::URL| for relative URL resolution.  Don't
	use attributes not supported by NanoDOM.

2008-10-27  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: HTML5 spec status updated, except for
	datatemplate-related features, once again.  Status for RDFa and
	XHTML Basic 1.1 updated.

2008-10-27  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: HTML5 spec status updated, except for
	datatemplate-related features.

2008-10-07  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Quoted-strings in media type specifications were not
	properly decoded.  Fixed support for <li value> with non-<ol>
	parent (or with no parent).

2008-10-07  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: <input usemap> support.

2008-10-07  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Mark <input inputmode> as dropped.  <input accesskey>
	support fixed.  <input align> support.  Tentative support for
	<input inputmode>.  Support for <input replace>.  Status of
	<button template> fixed.

2008-10-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Place checkers for obsolete attributes appropriately.

2008-10-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: <input step> implemented.

2008-10-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: The checker code for the Password state merged with the
	code for the Text state.  The |maxlength| attribute checker
	implemented.  The |size| attribute whose value is zero is not
	allowed.

2008-10-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |required| attribute of the |input|
	element.

2008-10-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Don't use |get_attribute|, for compatibility with
	NanoDOM.  Support for |readonly|, |autocomplete|, and |size|
	attributes of the |input| element.

2008-10-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Checks of attribute applicablity for remaining <input
	type> states are implemented.  Some <input type>-dependent
	attribute checkers implemented.

2008-10-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: <input type=text>, <input type=email>, <input
	type=url>, <input type=password>, and <input type=datetime>
	checkes are implemented.

2008-10-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: <input type=hidden> checkes implemented.

2008-10-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: <input type> definition updated according to HTML5
	definition.  Prepares for tests against <input type> states.

2008-10-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |input|'s |check_attrs| method is expanded to support
	varying requirements for various states of the element.

2008-10-05  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: <label> content conformance checking implemented.

2008-09-22  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |for=""| validation.

2008-09-22  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |area| |alt=""| validation (HTML5
	revision 1932).

2008-09-21  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |form=""| attributes.

2008-09-21  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |id| attribute checkers for the |menu| and |map|
	elements are removed; the |id| attribute of those elements is now
	checked by the global |id| attribute.

2008-09-21  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |fieldset| |legend|.

2008-09-21  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |form| element's |name| attribute is implemented.

2008-09-20  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: U+000B is no longer part of space characters (HTML5
	revision 1738).

2008-09-20  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm, Atom.pm: Interactrive content implementation synced
	with the spec (HTML5 revision 2018).

2008-09-20  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm ($HTMLCharsetChecker): Support for ASCII-compatibility
	check.
	($HTMLCharsetsAttrChecker): New checker for accept-charset=""
	support.

2008-09-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for style="" attributes.

2008-09-12  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Tentative support for |textarea| |oninput|
	attribute.

2008-09-12  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: The WF2 |oninput| attribute was not added.
	The WF2 |onforminput| and |onformchange| attributes were
	not added, since they are not defined (although they ARE
	mentioned) in the normative part of the WF2 spec.  
	Typo on the |oninvalid| attribute fixed.

2008-09-11  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |fieldset| |name| added (HTML5 revision 2162).

2008-09-09  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |a| is now transparent (HTML5 revision 1963).

2008-09-07  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: data-UPPERCASE attributes are no longer
	allowed (HTML5 revision 1945).

2008-09-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for form elements (HTML5 revisions
	2142, 2148, 2150-2154).

2008-09-05  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: RDFa spec status updated again.

2008-09-04  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: RDFa spec status updated.

2008-09-04  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: WF2 content model, contexts, attributes/elements
	status are updated. (HTML5 revision 2142-2152).

2008-08-31  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |event-source| renamed as |eventsource| (HTML5 revision
	1863).

2008-08-31  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Uppercase attribute names for embed elements
	are disallowed (HTML5 revision 1946).

2008-08-31  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |embed| custom attributes and |data-*| attributes
	must be XML compatible (HTML5 revision 1836).

2008-08-31  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: All HTML elements can have xmlns="" attributes (HTML5
	revision 1834).

2008-08-31  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Requires non-empty title="" for rel="alternate stylesheet"
	link elements (HTML5 revision 1942).

2008-08-31  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for the |bb| element (HTML5 revision 1894).
	|irrelevant| renamed as |hidden| (HTML5 revision 2119).

2008-08-31  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Element status updated.

2008-08-31  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: <embed> without src="" is conforming (HTML5
	revision 1929).

2008-08-30  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: @autosubmit dropped (HTML5 revision 2019).

2008-08-30  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Use White_Space instead of Zs for date or time
	string in content (HTML5 revision 2094).  Make "YYYY-MM-DDHH:MM" (that
	misses a white space or "T" literal between day and hour) 
	not raise two errors.

2008-08-30  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |xml:lang| attribute value must be same
	as |lang| attribute value for HTML elements (HTML5 revision 2062
	and so on).  |lang| attribute in XML document is no longer
	disallowed (HTML5 revision 2062).  |xml:lang| is allowed
	in HTML document (HTML5 revision 2062 and so on).

2008-08-30  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: s/element missing/child element missing/ for
	consistency.

	* HTML.pm: Typos fixed.
	(pre): "No significant content" error was unintentionally
	disabled.  s/element missing/child element missing/ for
	consistency.

2008-08-29  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm, HTML.pm: Made {level} inherited to the IMT checker.

2008-08-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (%XHTML2CommonAttrStatus): HTML5 status was missing.

2008-08-16  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Subdocument texts for |style| and |script|
	elements were not initialized.

2008-08-16  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm, Atom.pm: Pass {level} object to language tag
	and URL checkers.

2008-08-15  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Mark HTML4's "fact"-level errors as such.  Typo fixed.

2008-08-15  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm, HTML.pm: All error reporting method calls are
	revised.

2008-07-19  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for class=idl WebIDL checking.

2008-06-08  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |<map name="">| (HTML5 revisions
	1722 and 1728).

2008-06-08  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for ruby, rt, and rp elements (HTML5
	revision 1704).  The |href| attribute is also extended
	as a common attribute by RDFa Last Call Working Draft.

2008-06-01  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Make data="" invalid (HTML5 revision 1709).

2008-05-25  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for sizes="" (HTML5 revision 1558).

2008-05-25  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |select| or |datalist| as a first child of |datagrid|
	is now disallowed (HTML5 revision 1566).  |datagrid| elements
	may be empty.

2008-05-25  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: The |param| element is in LC phase now.

2008-05-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for seemless="" (HTML5 revision 1637) and
	sandbox="" (HTML5 revision 1643).

2008-05-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |width| and |height| on |iframe| are now conforming (HTML5
	revision 1659).

2008-05-16  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Fact out generic charset name checking code
	to $HTMLCharsetChecker.  Support for charset="" attributes
	on <a>, <link>, and <script> elements.

2008-05-16  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm ($GetHTMLFloatingPointNumberAttrChecker): More than
	one "." characters were allowed in a floating point number
	incorrectly.
	(source): Support for the pixelratio="" attribute (HTML5 revision
	1629).

2008-05-10  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Yay, |canvas| got the final status!

2008-05-10  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm ($GetHTMLBooleanAttrChecker): Allow uppercase
	letters (HTML5 revision 1572).

2008-05-06  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Invoke |Whatpm::HTMLTable->assign_header| for each
	table object.  Return the table object, not table element.
	The |headers=""| checker for |td| elements are now noop.
	Set the status of |headers=""| attribute as HTML5's one.

2008-05-05  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm ($HTMLLengthAttrChecker): New.
	(table/@cellpadding, table/@cellspacing, @charoff): Implemented.
	(script/@langauge): Implemented.

2008-05-05  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Make duplicate http-equiv="" non-conforming.
	Check meta refresh content="".

2008-05-05  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Empty <tbod>, <thead>, <tfoot>, and <tr> are
	no longer content model error (they might be raise
	table model error, however).  All table model error
	parameters should propagate.

2008-05-05  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Raise an error if a repeat* global attrbute
	is used for an HTML element.

2008-05-03  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for global attributes.  Status
	for XHTML2 elements/attributes are added.

2008-05-03  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |repeat-start=""| attribute.

2008-05-03  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |repeat=""|, |repeat-template=""|,
	|repeat-min=""|, and |repeat-max=""| attributes.
	Support for |button| |type| values |add|, |remove|, |move-up|,
	and |move-down|.

2008-05-03  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |template=""|, |ref=""|, and
	|registrationmark=""| attributes.

2008-04-29  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: <font> dropped and style="" is now global (HTML5 revision
	1511).

2008-04-29  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |onstorage| attribute is added (HTML5
	revision 1495).  Defined terms no longer have to be unique (HTML5
	revision 1467).

2008-04-29  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm ($HTMLBrowsingContextNameAttrChecker): New checker.
	($HTMLTargetAttrChecker): |_blank| is now allowed (HTML5
	revision 1471) and an empty string is no longer allowed (HTML5
	revision 1470).
	(object/@name, iframe/@name): Added (HTML5 revision 1470).

2008-04-13  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |xmlns| attribute is now a global attribute (HTML5
	revision 1426).

2008-04-12  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for HTML custom data attributes (HTML5
	revision 1399).

2008-03-28  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: s/Prose/Flow/g (HTML5 revision 1261).

2008-03-23  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: @datetime microsyntax is in the First Draft phase.

2008-03-22  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: link/@rev and a/@rev are implemented.

2008-03-22  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: link/@target, img/@align, img/@border, img/@hspace,
	img/@vspace, img/@longdesc, object/@align, object/@archive,
	object/@border, object/@classid, object/@codebase, 
	object/@codetype, object/@declare, object/@hspace,
	object/@standby, object/@vspace, param/@valuetype,
	param/@type, area/@nohref, %cellhalign/@align, %cellhalign/@char,
	and %cellvalign/@valign are implemented.

2008-03-22  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: tr/@bgcolor, td/@bgcolor, th/@bgcolor, td/@abbr,
	th/@abbr, td/@axis, th/@axis, td/@scope, td/@nowrap,
	th/@nowrap, caption/@align , table/@frame, table/@rules,
	table/@summary, and table/@width are implemented.

2008-03-22  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: body/@alink, body/@background, body/@bgcolor,
	body/@link, body/@text, body/@vlink, hn/@align, p/@align,
	br/@clear, pre/@width, ol/@compact, ul/@compact,
	dl/@compact, dl/@compact, menu/@compact, and div/@align implemented.

2008-03-22  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Typo fixed.  html/@version implemented (as do-nothing
	checker). head/@profile implemented.  meta/@scheme implemented (as
	do-nothing checker).

2008-03-22  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Add URIs to the list of URIs to be returned
	by the checker method. |accesskey| attribute is implemented.

2008-03-20  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Don't raise an error even if there is
	no |atom:summary| element child in the |atom:entry|
	element when the |type| attribute of the |atom:content|
	element is set to |html|, |xhtml|, or |text|.
	The |atom:rights| elements were implemented
	as Date construct (!?).
	Typo in code for |rel=alternate| are fixed.

2008-03-20  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Support for |thr:total| element.
	Add notes on additional Atom namespaces.

2008-03-20  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Support for |thr:in-reply-to| element.

2008-03-20  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Raise an error if required |atom:summary|
	element is missing from an |atom:entry| element.

2008-03-20  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Support for |<* type=html>| in Text construct.

2008-03-20  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Bug fix for validation of |feed| on |author| child.

2008-03-20  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Support for |<content type=html>| content
	checking.

2008-03-20  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Support for |author| for |feed| checking.

2008-03-20  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Support for |author| for |entry| checking.

2008-03-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Some attribute level definitions were missing.

2008-03-09  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |dir|, |center|, and |basefont| are implemented.

2008-03-09  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |contenteditable| attribute support is now implemented.

2008-03-09  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Known but not-implemented-yet attributes were not
	warned.

2008-03-02  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Status information from old specifications
	are incorporated.

2008-03-02  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Reimplemented.

2008-03-02  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |in_a_href| flag is not reset after the </a>.
	Raise an error if |area| is not a descendant of |map|.

2008-03-01  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Sectioning root category added.  |blockquote|
	is no longer a sectioning content.

2008-02-26  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Allow |blockquote| in |header| and |footer| (HTML5
	revision 1250).

2008-02-26  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: First version of Web Forms 2.0 support (its weired,
	since the spec itself is frankensteinesque:-); note that though
	it is weired spec from the today's viewpoint, it is still
	better-written spec than any W3C (Candidate or Proposed or full)
	Recommendation, sadly.

2008-02-26  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Since even XHTML Basic 1.1 is a CR, diffs
	from XHTML M12N 1.0 are reflected in |status| field.

2008-02-26  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: HTML5 status constants are OR-ed with "allowed" status.
	Don't raise "not defined" errors; they are now raised according
	to status flags.  Status flags of li/@value, ol/@start, and menu
	are now non-deprecated, to avoid deprecated error message.
	area/@hreftype typo fixed.  |isindex| SHOULD NOT be used
	according to HTML4.

2008-02-26  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Make |figure| caption optional (HTML5 revision 1240).
	Add |reversed| to |ol| (HTML5 revision 1248).

2008-02-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Most of Web Forms 1.0 attributes are implemented.

2008-02-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |big|, |tt|, |s|, |strike|, and |u| are implemented.
	Raise not-part-of-HTML5 error for |acronym|.

2008-02-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: HTML5 attribute status added.

2008-02-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Standardized status for attributes are added (HTML5
	info are not added yet).  Make element or attribute not defined
	by HTML5 spec as a conformance error (though it is not clearly
	defined by HTML5 spec as non-conforming).  Note that more work
	is needed for non-standard attribute thing, since the current
	implementation prevents non-standard attribute from being 
	syntactically checked (otherwise it is treated as if a
	standard attribute).

2008-02-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Standardized status attributes are added.

2008-02-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Invalid |meta| in |noscript| should be erred
	as usual.

2008-02-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Updated for |del|-and-significant problem.

2008-02-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (datagrid): Condition was incorrect.

2008-02-23  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (%HTMLProseContentChecker, details, figure): Don't
	change state when a transparent element is encountered.
	(details check): Reimplemented.

2008-02-23  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (object check_end): Don't check significant content
	if the element is used as a transparent element.
	(video check): Reimplemented.

2008-02-23  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |figure| content checker reimplemented.  |object|
	content checker for root element case reimplemented.

2008-02-23  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Revised.

2008-02-18  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (object): Implemented (with some bug on transparentness
	handling).

2008-02-18  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: s/m/mark/g (HTML5 revision 1232).

2008-02-18  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (img): |alt| is a SHOULD-level requirement now (since
	the conformance checker cannot examine the semantics of the
	image).

2008-02-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Useless old stuff are removed.  |datagrid|
	was missing from |$HTMLInteractiveContent|.
	(a): Use new |$HTMLInteractiveContent| in place
	of |$HTMLIntetractiveElements|.
	(caption): Use new |$HTMLPhrasingContentChecker| in place 
	of |$HTMLStrictlyInlineChecker|.

2008-02-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (figure): Implemented.
	(video, audio): In no-parent-element case with |src| attribute,
	the content model is now prose content.

2008-02-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (noscript): Reimplemented.

2008-02-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: |<meta http-equiv=Content-Type| support (HTML5 revision 
	1180).

2008-02-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (th): |th| now requires phrasing content.  |div|
	now requires prose content.

2008-02-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Error messages revised.

2008-02-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Most part of December 2007 Content Model is implemented.

2008-02-10  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (<style>): CSS validation code removed; instead,
	it does invoke subdoc callback to ask to the callee to validate
	the style sheet separately.

2008-02-09  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (<style>): Initial version of CSS validation support.

2007-11-25  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm ($HTMLSignificantContentErrors): New.

2007-11-25  Wakaba  <wakaba@suika.fam.cx>	

	* HTML.pm: Support for checking for significant content (HTML5
	revision 1114).  Note that the current implementation has
	an issue on treatment for transparent or semi-transparent
	elements.

	* Atom.pm: Support for significant content checking (for composed
	HTML-Atom documents).

2007-11-25  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (header): Descendant constraint is redefined by
	new todo item type |descendant|.

2007-11-24  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (nest/@filter, rule/@condition): Implemented.
	(nest/@mode): Definition was wrong.
	($HTMLSelectorsAttrChecker): New.

2007-11-23  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (meta): Character references in |charset| attribute
	values are now erred.

2007-11-23  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (meta): |charset| value tests implemented.

2007-11-11  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Raise bad-context error for proposed link types.

2007-11-07  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Specialized error for old charset syntax.

2007-11-07  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Make |rel="up up"| conforming (HTML5 revision 1130).

2007-11-04  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Allow <html manifest=URI>.

2007-11-04  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Don't allow <a><img ismap></a> (<a> w/o href="") (HTML5
	revision 1115).

2007-11-04  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: <base> w/o @target and @href is non-conforming (HTML5
	revision 1115).

2007-11-04  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: "Significant" has been gone (HTML5 revision 1114).

2007-10-26  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |poster| attribute (HTML5 revision 1097).

2007-10-23  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Make <script async defer> conforming (HTML5
	revision 1085).

2007-10-14  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm, HTML.pm: Support for |html:nest|, |html:datatemplate|,
	and |html:rule| elements.

2007-09-24  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm (atom:link@title): Definition was missing.

2007-09-24  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm (hreflang): Checker is implemented.
	(AtomDateConstruct): Checking for content is implemented.

2007-09-09  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for language tag validation.

2007-08-25  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm (head, noscript): Treatement for invalid |meta|
	elenments are changed as per HTML5 revision 1018.

2007-08-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Raise new errors if |base| is following
	URI attributes or hyperlink attributes.

2007-08-17  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: Support for |noscript| in |head|.  Make an
	error for |noscript| in XML document.

2007-08-08  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm ($HTMLURIsAttrChecker): Syntax of error |type|
	value are changed for the ease of error message catalog
	lookup.

2007-08-05  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: |link|-related checks are added; |type|
	media type checks are added.  |hreflang| now warns
	as unimplemented.

2007-08-05  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: Checker for all elements are defined (with
	a number of "TODO"s).

2007-08-05  Wakaba  <wakaba@suika.fam.cx>

	* Atom.pm: New Perl module.

2007-08-04  Wakaba  <wakaba@suika.fam.cx>

	* HTML.pm: New Perl module, split from |Whatpm/ContentChecker.pm|.

	* ChangeLog: New file.