1 NEWS ( CHANGELOG and HISTORY ) HTMLPurifier
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4 = KEY ====================
10 ==========================
12 4.3.0, unknown release date
13 # Fixed broken caching of customized raw definitions, but requires an
14 API change. The old API still works but will emit a warning,
15 see http://htmlpurifier.org/docs/enduser-customize.html#optimized
16 for how to upgrade your code.
17 ! Added %HTML.Nofollow to add rel="nofollow" to external links.
18 ! More types of SPL autoloaders allowed on later versions of PHP.
19 ! Implementations for position, top, left, right, bottom, z-index
20 when %CSS.Trusted is on.
21 ! Add %Cache.SerializerPermissions option for custom serializer
22 directory/file permissions
23 - Make removal of conditional IE comments ungreedy; thanks Bernd
25 - Escape CDATA before removing Internet Explorer comments.
26 - Fix removal of id attributes under certain conditions by ensuring
27 armor attributes are preserved when recreating tags.
28 - Check if schema.ser was corrupted.
29 - Check if zend.ze1_compatibility_mode is on, and error out if it is.
30 This safety check is only done for HTMLPurifier.auto.php; if you
31 are using standalone or the specialized includes files, you're
32 expected to know what you're doing.
33 - Stop repeatedly writing the cache file after I'm done customizing a
34 raw definition. Reported by ajh.
35 - Switch to using require_once in the Bootstrap to work around bad
36 interaction with Zend Debugger and APC. Reported by Antonio Parraga.
38 4.2.0, released 2010-09-15
39 ! Added %Core.RemoveProcessingInstructions, which lets you remove
41 ! Added %URI.DisableResources functionality; the directive originally
42 did nothing. Thanks David Rothstein for reporting.
43 ! Add documentation about configuration directive types.
44 ! Add %CSS.ForbiddenProperties configuration directive.
45 ! Add %HTML.FlashAllowFullScreen to permit embedded Flash objects
46 to utilize full-screen mode.
47 ! Add optional support for the <code>file</code> URI scheme, enable
48 by explicitly setting %URI.AllowedSchemes.
49 ! Add %Core.NormalizeNewlines options to allow turning off newline
51 - Fix improper handling of Internet Explorer conditional comments
52 by parser. Thanks zmonteca for reporting.
53 - Fix missing attributes bug when running on Mac Snow Leopard and APC.
54 Thanks sidepodcast for the fix.
55 - Warn if an element is allowed, but an attribute it requires is
58 4.1.1, released 2010-05-31
59 - Fix undefined index warnings in maintenance scripts.
60 - Fix bug in DirectLex for parsing elements with a single attribute
62 - Rewrite CSS output logic for font-family and url(). Thanks Mario
63 Heiderich <mario.heiderich@googlemail.com> for reporting and Takeshi
64 Terada <t-terada@violet.plala.or.jp> for suggesting the fix.
65 - Emit an error for CollectErrors if a body is extracted
66 - Fix bug where in background-position for center keyword handling.
67 - Fix infinite loop when a wrapper element is inserted in a context
68 where it's not allowed. Thanks Lars <lars@renoz.dk> for reporting.
69 - Remove +x bit and shebang from index.php; only supported mode is to
70 explicitly call it with php.
71 - Make test script less chatty when log_errors is on.
73 4.1.0, released 2010-04-26
74 ! Support proprietary height attribute on table element
75 ! Support YouTube slideshows that contain /cp/ in their URL.
76 ! Support for data: URI scheme; not enabled by default, add it using
78 ! Support flashvars when using %HTML.SafeObject and %HTML.SafeEmbed.
79 ! Support for Internet Explorer compatibility with %HTML.SafeObject
80 using %Output.FlashCompat.
81 ! Handle <ol><ol> properly, by inserting the necessary <li> tag.
82 - Always quote the insides of url(...) in CSS.
84 4.0.0, released 2009-07-07
85 # APIs for ConfigSchema subsystem have substantially changed. See
86 docs/dev-config-bcbreaks.txt for details; in essence, anything that
87 had both namespace and directive now have a single unified key.
88 # Some configuration directives were renamed, specifically:
89 %AutoFormatParam.PurifierLinkifyDocURL -> %AutoFormat.PurifierLinkify.DocURL
90 %FilterParam.ExtractStyleBlocksEscaping -> %Filter.ExtractStyleBlocks.Escaping
91 %FilterParam.ExtractStyleBlocksScope -> %Filter.ExtractStyleBlocks.Scope
92 %FilterParam.ExtractStyleBlocksTidyImpl -> %Filter.ExtractStyleBlocks.TidyImpl
93 As usual, the old directive names will still work, but will throw E_NOTICE
95 # The allowed values for class have been relaxed to allow all of CDATA for
96 doctypes that are not XHTML 1.1 or XHTML 2.0. For old behavior, set
97 %Attr.ClassUseCDATA to false.
98 # Instead of appending the content model to an old content model, a blank
99 element will replace the old content model. You can use #SUPER to get
100 the old content model.
101 ! More robust support for name="" and id=""
102 ! HTMLPurifier_Config::inherit($config) allows you to inherit one
103 configuration, and have changes to that configuration be propagated
104 to all of its children.
105 ! Implement %HTML.Attr.Name.UseCDATA, which relaxes validation rules on
106 the name attribute when set. Use with care. Thanks Ian Cook for
108 ! Implement %AutoFormat.RemoveEmpty.RemoveNbsp, which removes empty
109 tags that contain non-breaking spaces as well other whitespace. You
110 can also modify which tags should have maintained with
111 %AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions.
112 ! Implement %Attr.AllowedClasses, which allows administrators to restrict
113 classes users can use to a specified finite set of classes, and
114 %Attr.ForbiddenClasses, which is the logical inverse.
115 ! You can now maintain your own configuration schema directories by
116 creating a config-schema.php file or passing an extra argument. Check
117 docs/dev-config-schema.html for more details.
118 ! Added HTMLPurifier_Config->serialize() method, which lets you save away
119 your configuration in a compact serial file, which you can unserialize
120 and use directly without having to go through the overhead of setup.
121 - Fix bug where URIDefinition would not get cleared if it's directives got
123 - Fix fatal error in HTMLPurifier_Encoder on certain platforms (probably NetBSD 5.0)
124 - Fix bug in Linkify autoformatter involving <a><span>http://foo</span></a>
125 - Make %URI.Munge not apply to links that have the same host as your host.
126 - Prevent stray </body> tag from truncating output, if a second </body>
128 . Created script maintenance/rename-config.php for renaming a configuration
129 directive while maintaining its alias. This script does not change source code.
130 . Implement namespace locking for definition construction, to prevent
131 bugs where a directive is used for definition construction but is not
132 used to construct the cache hash.
134 3.3.0, released 2009-02-16
135 ! Implement CSS property 'overflow' when %CSS.AllowTricky is true.
136 ! Implement generic property list classess
137 - Fix bug with testEncodingSupportsASCII() algorithm when iconv() implementation
138 does not do the "right thing" with characters not supported in the output
140 - Spellcheck UTF-8: The Secret To Character Encoding
141 - Fix improper removal of the contents of elements with only whitespace. Thanks
142 Eric Wald for reporting.
143 - Fix broken test suite in versions of PHP without spl_autoload_register()
144 - Fix degenerate case with YouTube filter involving double hyphens.
145 Thanks Pierre Attar for reporting.
146 - Fix YouTube rendering problem on certain versions of Firefox.
147 - Fix CSSDefinition Printer problems with decorators
148 - Add text parameter to unit tests, forces text output
149 . Add verbose mode to command line test runner, use (--verbose)
150 . Turn on unit tests for UnitConverter
151 . Fix missing version number in configuration %Attr.DefaultImageAlt (added 3.2.0)
152 . Fix newline errors that caused spurious failures when CRLF HTML Purifier was
154 . Removed trailing whitespace from all text files, see
155 remote-trailing-whitespace.php maintenance script.
156 . Convert configuration to use property list backend.
158 3.2.0, released 2008-10-31
159 # Using %Core.CollectErrors forces line number/column tracking on, whereas
160 previously you could theoretically turn it off.
161 # HTMLPurifier_Injector->notifyEnd() is formally deprecated. Please
162 use handleEnd() instead.
163 ! %Output.AttrSort for when you need your attributes in alphabetical order to
164 deal with a bug in FCKEditor. Requested by frank farmer.
165 ! Enable HTML comments when %HTML.Trusted is on. Requested by Waldo Jaquith.
166 ! Proper support for name attribute. It is now allowed and equivalent to the id
167 attribute in a and img tags, and is only converted to id when %HTML.TidyLevel
168 is heavy (for all doctypes).
169 ! %AutoFormat.RemoveEmpty to remove some empty tags from documents. Please don't
170 use on hand-written HTML.
171 ! Add error-cases for unsupported elements in MakeWellFormed. This enables
172 the strategy to be used, standalone, on untrusted input.
173 ! %Core.AggressivelyFixLt is on by default. This causes more sensible
174 processing of left angled brackets in smileys and other whatnot.
175 ! Test scripts now have a 'type' parameter, which lets you say 'htmlpurifier',
176 'phpt', 'vtest', etc. in order to only execute those tests. This supercedes
177 the --only-phpt parameter, although for backwards-compatibility the flag
179 ! AutoParagraph auto-formatter will now preserve double-newlines upon output.
180 Users who are not performing inbound filtering, this may seem a little
181 useless, but as a bonus, the test suite and handling of edge cases is also
183 ! Experimental implementation of forms for %HTML.Trusted
184 ! Track column numbers when maintain line numbers is on
185 ! Proprietary 'background' attribute on table-related elements converted into
186 corresponding CSS. Thanks Fusemail for sponsoring this feature!
187 ! Add forward(), forwardUntilEndToken(), backward() and current() to Injector
189 ! HTMLPurifier_Injector->handleEnd() permits modification to end tokens. The
190 time of operation varies slightly from notifyEnd() as *all* end tokens are
191 processed by the injector before they are subject to the well-formedness rules.
192 ! %Attr.DefaultImageAlt allows overriding default behavior of setting alt to
193 basename of image when not present.
194 ! %AutoFormat.DisplayLinkURI neuters <a> tags into plain text URLs.
195 - Fix two bugs in %URI.MakeAbsolute; one involving empty paths in base URLs,
196 the other involving an undefined $is_folder error.
197 - Throw error when %Core.Encoding is set to a spurious value. Previously,
198 this errored silently and returned false.
199 - Redirected stderr to stdout for flush error output.
200 - %URI.DisableExternal will now use the host in %URI.Base if %URI.Host is not
202 - Do not re-munge URL if the output URL has the same host as the input URL.
204 - Fix error in documentation regarding %Filter.ExtractStyleBlocks
205 - Prevent <![CDATA[<body></body>]]> from triggering %Core.ConvertDocumentToFragment
206 - Fix bug with inline elements in blockquotes conflicting with strict doctype
207 - Detect if HTML support is disabled for DOM by checking for loadHTML() method.
208 - Fix bug where dots and double-dots in absolute URLs without hostname were
209 not collapsed by URIFilter_MakeAbsolute.
210 - Fix bug with anonymous modules operating on SafeEmbed or SafeObject elements
211 by reordering their addition.
212 - Will now throw exception on many error conditions during lexer creation; also
213 throw an exception when MaintainLineNumbers is true, but a non-tracksLineNumbers
215 - Detect if domxml extension is loaded, and use DirectLEx accordingly.
216 - Improve handling of big numbers with floating point arithmetic in UnitConverter.
217 Reported by David Morton.
218 . Strategy_MakeWellFormed now operates in-place, saving memory and allowing
219 for more interesting filter-backtracking
220 . New HTMLPurifier_Injector->rewind() functionality, allows injectors to rewind
221 index to reprocess tokens.
222 . StringHashParser now allows for multiline sections with "empty" content;
223 previously the section would remain undefined.
224 . Added --quick option to multitest.php, which tests only the most recent
225 release for each series.
226 . Added --distro option to multitest.php, which accepts either 'normal' or
227 'standalone'. This supercedes --exclude-normal and --exclude-standalone
229 3.1.1, released 2008-06-19
230 # %URI.Munge now, by default, does not munge resources (for example, <img src="">)
231 In order to enable this again, please set %URI.MungeResources to true.
232 ! More robust imagecrash protection with height/width CSS with %CSS.MaxImgLength,
233 and height/width HTML with %HTML.MaxImgLength.
234 ! %URI.MungeSecretKey for secure URI munging. Thanks Chris
235 for sponsoring this feature. Check out the corresponding documentation
236 for details. (Att Nightly testers: The API for this feature changed before
237 the general release. Namely, rename your directives %URI.SecureMungeSecretKey =>
238 %URI.MungeSecretKey and and %URI.SecureMunge => %URI.Munge)
239 ! Implemented post URI filtering. Set member variable $post to true to set
241 ! Allow modules to define injectors via $info_injector. Injectors are
242 automatically disabled if injector's needed elements are not found.
243 ! Support for "safe" objects added, use %HTML.SafeObject and %HTML.SafeEmbed.
244 Thanks Chris for sponsoring. If you've been using ad hoc code from the
245 forums, PLEASE use this instead.
246 ! Added substitutions for %e, %n, %a and %p in %URI.Munge (in order,
247 embedded, tag name, attribute name, CSS property name). See %URI.Munge
248 for more details. Requested by Jochem Blok.
249 - Disable percent height/width attributes for img.
250 - AttrValidator operations are now atomic; updates to attributes are not
251 manifest in token until end of operations. This prevents naughty internal
252 code from directly modifying CurrentToken when they're not supposed to.
253 This semantics change was requested by frank farmer.
254 - Percent encoding checks enabled for URI query and fragment
255 - Fix stray backslashes in font-family; CSS Unicode character escapes are
256 now properly resolved (although *only* in font-family). Thanks Takeshi Terada
258 - Improve parseCDATA algorithm to take into account newline normalization
259 - Account for browser confusion between Yen character and backslash in
260 Shift_JIS encoding. This fix generalizes to any other encoding which is not
261 a strict superset of printable ASCII. Thanks Takeshi Terada for reporting.
262 - Fix missing configuration parameter in Generator calls. Thanks vs for the
264 - Improved adherence to Unicode by checking for non-character codepoints.
265 Thanks Geoffrey Sneddon for reporting. This may result in degraded
266 performance for extremely large inputs.
267 - Allow CSS property-value pair ''text-decoration: none''. Thanks Jochem Blok
269 . Added HTMLPurifier_UnitConverter and HTMLPurifier_Length for convenient
270 handling of CSS-style lengths. HTMLPurifier_AttrDef_CSS_Length now uses
272 . API of HTMLPurifier_AttrDef_CSS_Length changed from __construct($disable_negative)
273 to __construct($min, $max). __construct(true) is equivalent to
275 . Added HTMLPurifier_AttrDef_Switch class
276 . Rename HTMLPurifier_HTMLModule_Tidy->construct() to setup() and bubble method
277 up inheritance hierarchy to HTMLPurifier_HTMLModule. All HTMLModules
278 get this called with the configuration object. All modules now
279 use this rather than __construct(), although legacy code using constructors
280 will still work--the new format, however, lets modules access the
281 configuration object for HTML namespace dependant tweaks.
282 . AttrDef_HTML_Pixels now takes a single construction parameter, pixels.
283 . ConfigSchema data-structure heavily optimized; on average it uses a third
284 the memory it did previously. The interface has changed accordingly,
285 consult changes to HTMLPurifier_Config for details.
286 . Variable parsing types now are magic integers instead of strings
287 . Added benchmark for ConfigSchema
288 . HTMLPurifier_Generator requires $config and $context parameters. If you
289 don't know what they should be, use HTMLPurifier_Config::createDefault()
290 and new HTMLPurifier_Context().
291 . Printers now properly distinguish between output configuration, and
292 target configuration. This is not applicable to scripts using
293 the Printers for HTML Purifier related tasks.
294 . HTML/CSS Printers must be primed with prepareGenerator($gen_config), otherwise
295 fatal errors will ensue.
296 . URIFilter->prepare can return false in order to abort loading of the filter
297 . Factory for AttrDef_URI implemented, URI#embedded to indicate URI that embeds
298 an external resource.
299 . %URI.Munge functionality factored out into a post-filter class.
300 . Added CurrentCSSProperty context variable during CSS validation
302 3.1.0, released 2008-05-18
303 # Unnecessary references to objects (vestiges of PHP4) removed from method
304 signatures. The following methods do not need references when assigning from
305 them and will result in E_STRICT errors if you try:
306 + HTMLPurifier_Config->get*Definition() [* = HTML, CSS]
307 + HTMLPurifier_ConfigSchema::instance()
308 + HTMLPurifier_DefinitionCacheFactory::instance()
309 + HTMLPurifier_DefinitionCacheFactory->create()
310 + HTMLPurifier_DoctypeRegistry->register()
311 + HTMLPurifier_DoctypeRegistry->get()
312 + HTMLPurifier_HTMLModule->addElement()
313 + HTMLPurifier_HTMLModule->addBlankElement()
314 + HTMLPurifier_LanguageFactory::instance()
315 # Printer_ConfigForm's get*() functions were static-ified
316 # %HTML.ForbiddenAttributes requires attribute declarations to be in the
317 form of tag@attr, NOT tag.attr (which will throw an error and won't do
318 anything). This is for forwards compatibility with XML; you'd do best
319 to migrate an %HTML.AllowedAttributes directives to this syntax too.
320 ! Allow index to be false for config from form creation
321 ! Added HTMLPurifier::VERSION constant
322 ! Commas, not dashes, used for serializer IDs. This change is forwards-compatible
323 and allows for version numbers like "3.1.0-dev".
324 ! %HTML.Allowed deals gracefully with whitespace anywhere, anytime!
325 ! HTML Purifier's URI handling is a lot more robust, with much stricter
326 validation checks and better percent encoding handling. Thanks Gareth Heyes
327 for indicating security vulnerabilities from lax percent encoding.
328 ! Bootstrap autoloader deals more robustly with classes that don't exist,
329 preventing class_exists($class, true) from barfing.
330 - InterchangeBuilder now alphabetizes its lists
331 - Validation error in configdoc output fixed
332 - Iconv and other encoding errors muted even with custom error handlers that
333 do not honor error_reporting
334 - Add protection against imagecrash attack with CSS height/width
335 - HTMLPurifier::instance() created for consistency, is equivalent to getInstance()
336 - Fixed and revamped broken ConfigForm smoketest
337 - Bug with bool/null fields in Printer_ConfigForm fixed
338 - Bug with global forbidden attributes fixed
339 - Improved error messages for allowed and forbidden HTML elements and attributes
340 - Missing (or null) in configdoc documentation restored
341 - If DOM throws and exception during parsing with PH5P (occurs in newer versions
342 of DOM), HTML Purifier punts to DirectLex
343 - Fatal error with unserialization of ScriptRequired
344 - Created directories are now chmod'ed properly
345 - Fixed bug with fallback languages in LanguageFactory
346 - Standalone testing setup properly with autoload
347 . Out-of-date documentation revised
348 . UTF-8 encoding check optimization as suggested by Diego
349 . HTMLPurifier_Error removed in favor of exceptions
350 . More copy() function removed; should use clone instead
351 . More extensive unit tests for HTMLDefinition
352 . assertPurification moved to central harness
353 . HTMLPurifier_Generator accepts $config and $context parameters during
354 instantiation, not runtime
355 . Double-quotes outside of attribute values are now unescaped
357 3.1.0rc1, released 2008-04-22
358 # Autoload support added. Internal require_once's removed in favor of an
359 explicit require list or autoloading. To use HTML Purifier,
360 you must now either use HTMLPurifier.auto.php
361 or HTMLPurifier.includes.php; setting the include path and including
362 HTMLPurifier.php is insufficient--in such cases include HTMLPurifier.autoload.php
363 as well to register our autoload handler (or modify your autoload function
364 to check HTMLPurifier_Bootstrap::getPath($class)). You can also use
365 HTMLPurifier.safe-includes.php for a less performance friendly but more
366 user-friendly library load.
367 # HTMLPurifier_ConfigSchema static functions are officially deprecated. Schema
368 information is stored in the ConfigSchema directory, and the
369 maintenance/generate-schema-cache.php generates the schema.ser file, which
370 is now instantiated. Support for userland schema changes coming soon!
371 # HTMLPurifier_Config will now throw E_USER_NOTICE when you use a directive
372 alias; to get rid of these errors just modify your configuration to use
373 the new directive name.
374 # HTMLPurifier->addFilter is deprecated; built-in filters can now be
375 enabled using %Filter.$filter_name or by setting your own filters using
377 # Directive-level safety properties superceded in favor of module-level
378 safety. Internal method HTMLModule->addElement() has changed, although
379 the externally visible HTMLDefinition->addElement has *not* changed.
380 ! Extra utility classes for testing and non-library operations can
381 be found in extras/. Specifically, these are FSTools and ConfigDoc.
382 You may find a use for these in your own project, but right now they
383 are highly experimental and volatile.
384 ! Integration with PHPT allows for automated smoketests
385 ! Limited support for proprietary HTML elements, namely <marquee>, sponsored
386 by Chris. You can enable them with %HTML.Proprietary if your client
388 ! Support for !important CSS cascade modifier. By default, this will be stripped
389 from CSS, but you can enable it using %CSS.AllowImportant
390 ! Support for display and visibility CSS properties added, set %CSS.AllowTricky
392 ! HTML Purifier now has its own Exception hierarchy under HTMLPurifier_Exception.
393 Developer error (not enduser error) can cause these to be triggered.
394 ! Experimental kses() wrapper introduced with HTMLPurifier.kses.php
395 ! Finally %CSS.AllowedProperties for tweaking allowed CSS properties without
396 mucking around with HTMLPurifier_CSSDefinition
397 ! ConfigDoc output has been enhanced with version and deprecation info.
398 ! %HTML.ForbiddenAttributes and %HTML.ForbiddenElements implemented.
399 - Autoclose now operates iteratively, i.e. <span><span><div> now has
400 both span tags closed.
401 - Various HTMLPurifier_Config convenience functions now accept another parameter
402 $schema which defines what HTMLPurifier_ConfigSchema to use besides the
404 - Fix bug with trusted script handling in libxml versions later than 2.6.28.
405 - Fix bug in ExtractStyleBlocks with comments in style tags
406 - Fix bug in comment parsing for DirectLex
407 - Flush output now displayed when in command line mode for unit tester
408 - Fix bug with rgb(0, 1, 2) color syntax with spaces inside shorthand syntax
409 - HTMLPurifier_HTMLDefinition->addAttribute can now be called multiple times
410 on the same element without emitting errors.
411 - Fixed fatal error in PH5P lexer with invalid tag names
412 . Plugins now get their own changelogs according to project conventions.
413 . Convert tokens to use instanceof, reducing memory footprint and
414 improving comparison speed.
415 . Dry runs now supported in SimpleTest; testing facilities improved
416 . Bootstrap class added for handling autoloading functionality
417 . Implemented recursive glob at FSTools->globr
418 . ConfigSchema now has instance methods for all corresponding define*
420 . A couple of new historical maintenance scripts were added.
421 . HTMLPurifier/HTMLModule/Tidy/XHTMLAndHTML4.php split into two files
422 . tests/index.php can now be run from any directory.
423 . HTMLPurifier_Token subclasses split into seperate files
424 . HTMLPURIFIER_PREFIX now is defined in Bootstrap.php, NOT HTMLPurifier.php
425 . HTMLPURIFIER_PREFIX can now be defined outside of HTML Purifier
426 . New --php=php flag added, allows PHP executable to be specified (command
428 . htmlpurifier_add_test() preferred method to translate test files in to
429 classes, because it handles PHPT files too.
430 . Debugger class is deprecated and will be removed soon.
431 . Command line argument parsing for testing scripts revamped, now --opt value
433 . Smoketests now cleanup after magic quotes
434 . Generator now can output comments (however, comments are still stripped
435 from HTML Purifier output)
436 . HTMLPurifier_ConfigSchema->validate() deprecated in favor of
437 HTMLPurifier_VarParser->parse()
438 . Integers auto-cast into float type by VarParser.
439 . HTMLPURIFIER_STRICT removed; no validation is performed on runtime, only
440 during cache generation
441 . Reordered script calls in maintenance/flush.php
442 . Command line scripts now honor exit codes
443 . When --flush fails in unit testers, abort tests and print message
444 . Improved documentation in docs/dev-flush.html about the maintenance scripts
445 . copy() methods removed in favor of clone keyword
447 3.0.0, released 2008-01-06
448 # HTML Purifier is PHP 5 only! The 2.1.x branch will be maintained
449 until PHP 4 is completely deprecated, but no new features will be added
451 + Visibility declarations added
452 + Constructor methods renamed to __construct()
453 + PHP4 reference cruft removed (in progress)
454 ! CSS properties are now case-insensitive
455 ! DefinitionCacheFactory now can register new implementations
456 ! New HTMLPurifier_Filter_ExtractStyleBlocks for extracting <style> from
457 documents and cleaning their contents up. Requires the CSSTidy library
458 <http://csstidy.sourceforge.net/>. You can access the blocks with the
459 'StyleBlocks' Context variable ($purifier->context->get('StyleBlocks')).
460 The output CSS can also be "scoped" for a specific element, use:
461 %Filter.ExtractStyleBlocksScope
462 ! Experimental support for some proprietary CSS attributes allowed:
463 opacity (and all of the browser-specific equivalents) and scrollbar colors.
464 Enable by setting %CSS.Proprietary to true.
465 - Colors missing # but in hex form will be corrected
466 - CSS Number algorithm improved
467 - Unit testing and multi-testing now on steroids: command lines,
468 XML output, and other goodies now added.
469 . Unit tests for Injector improved
471 + HTMLPurifier_AttrDef_CSS_AlphaValue
472 + HTMLPurifier_AttrDef_CSS_Filter
473 . Multitest now has a file docblock
475 2.1.3, released 2007-11-05
476 ! tests/multitest.php allows you to test multiple versions by running
477 tests/index.php through multiple interpreters using `phpv` shell
478 script (you must provide this script!)
479 - Fixed poor include ordering for Email URI AttrDefs, causes fatal errors
481 - Injector algorithm further refined: off-by-one error regarding skip
482 counts for dormant injectors fixed
483 - Corrective blockquote definition now enabled for HTML 4.01 Strict
484 - Fatal error when <img> tag (or any other element with required attributes)
485 has 'id' attribute fixed, thanks NykO18 for reporting
486 - Fix warning emitted when a non-supported URI scheme is passed to the
487 MakeAbsolute URIFilter, thanks NykO18 (again)
488 - Further refine AutoParagraph injector. Behavior inside of elements
489 allowing paragraph tags clarified: only inline content delimeted by
490 double newlines (not block elements) are paragraphed.
491 - Buggy treatment of end tags of elements that have required attributes
492 fixed (does not manifest on default tag-set)
493 - Spurious internal content reorganization error suppressed
494 - HTMLDefinition->addElement now returns a reference to the created
495 element object, as implied by the documentation
496 - Phorum mod's HTML Purifier help message expanded (unreleased elsewhere)
497 - Fix a theoretical class of infinite loops from DirectLex reported
499 - Work around unnecessary DOMElement type-cast in PH5P that caused errors
501 - Work around PHP 4 SimpleTest lack-of-error complaining for one-time-only
502 HTMLDefinition errors, this may indicate problems with error-collecting
504 - Make ErrorCollectorEMock work in both PHP 4 and PHP 5
505 - Make PH5P work with PHP 5.0 by removing unnecessary array parameter typedef
506 . %Core.AcceptFullDocuments renamed to %Core.ConvertDocumentToFragment
507 to better communicate its purpose
508 . Error unit tests can now specify the expectation of no errors. Future
509 iterations of the harness will be extremely strict about what errors
511 . Extend Injector hooks to allow for more powerful injector routines
512 . HTMLDefinition->addBlankElement created, as according to the HTMLModule
514 . Doxygen configuration file updated, with minor improvements
515 . Test runner now checks for similarly named files in conf/ directory too.
516 . Minor cosmetic change to flush-definition-cache.php: trailing newline is
518 . Maintenance script for generating PH5P patch added, original PH5P source
519 file also added under version control
520 . Full unit test runner script title made more descriptive with PHP version
521 . Updated INSTALL file to state that 4.3.7 is the earliest version we
524 2.1.2, released 2007-09-03
525 ! Implemented Object module for trusted users
526 ! Implemented experimental HTML5 parsing mode using PH5P. To use, add
528 require_once 'HTMLPurifier/Lexer/PH5P.php';
529 $config->set('Core', 'LexerImpl', 'PH5P');
530 Note that this Lexer introduces some classes not in the HTMLPurifier
531 namespace. Also, this is PHP5 only.
532 ! CSS property border-spacing implemented
533 - Fix non-visible parsing error in DirectLex with empty tags that have
534 slashes inside attribute values.
535 - Fix typo in CSS definition: border-collapse:seperate; was incorrectly
536 accepted as valid CSS. Usually non-visible, because this styling is the
537 default for tables in most browsers. Thanks Brett Zamir for pointing
539 - Fix validation errors in configuration form
540 - Hammer out a bunch of edge-case bugs in the standalone distribution
541 - Inclusion reflection removed from URISchemeRegistry; you must manually
542 include any new schema files you wish to use
543 - Numerous typo fixes in documentation thanks to Brett Zamir
544 . Unit test refactoring for one logical test per test function
545 . Config and context parameters in ComplexHarness deprecated: instead, edit
546 the $config and $context member variables
547 . HTML wrapper in DOMLex now takes DTD identifiers into account; doesn't
548 really make a difference, but is good for completeness sake
549 . merge-library.php script refactored for greater code reusability and
552 2.1.1, released 2007-08-04
553 - Fix show-stopper bug in %URI.MakeAbsolute functionality
554 - Fix PHP4 syntax error in standalone version
555 . Add prefix directory to include path for standalone, this prevents
556 other installations from clobbering the standalone's URI schemes
557 . Single test methods can be invoked by prefixing with __only
559 2.1.0, released 2007-08-02
560 # flush-htmldefinition-cache.php superseded in favor of a generic
561 flush-definition-cache.php script, you can clear a specific cache
562 by passing its name as a parameter to the script
563 ! Phorum mod implemented for HTML Purifier
564 ! With %Core.AggressivelyFixLt, <3 and similar emoticons no longer
565 trigger HTML removal in PHP5 (DOMLex). This directive is not necessary
566 for PHP4 (DirectLex).
567 ! Standalone file now available, which greatly reduces the amount of
568 includes (although there are still a few files that reside in the
570 ! Relative URIs can now be transformed into their absolute equivalents
571 using %URI.Base and %URI.MakeAbsolute
572 ! Ruby implemented for XHTML 1.1
573 ! You can now define custom URI filtering behavior, see enduser-uri-filter.html
575 ! UTF-8 font names now supported in CSS
576 - AutoFormatters emit friendly error messages if tags or attributes they
578 - ConfigForm's compactification of directive names is now configurable
579 - AutoParagraph autoformatter algorithm refined after field-testing
580 - XHTML 1.1 now applies XHTML 1.0 Strict cleanup routines, namely
582 - Contents of <style> tags removed by default when tags are removed
583 . HTMLPurifier_Config->getSerial() implemented, this is extremely useful
584 for output cache invalidation
585 . ConfigForm printer now can retrieve CSS and JS files as strings, in
586 case HTML Purifier's directory is not publically accessible
587 . Introduce new text/itext configuration directive values: these represent
588 longer strings that would be more appropriately edited with a textarea
589 . Allow newlines to act as separators for lists, hashes, lookups and
591 . ConfigForm generates textareas instead of text inputs for lists, hashes,
592 lookups, text and itext fields
593 . Hidden element content removal genericized: %Core.HiddenElements can
594 be used to customize this behavior, by default <script> and <style> are
596 . Added HTMLPURIFIER_PREFIX constant, should be used instead of dirname(__FILE__)
597 . Custom ChildDef added to default include list
598 . URIScheme reflection improved: will not attempt to include file if class
599 already exists. May clobber autoload, so I need to keep an eye on it
600 . ConfigSchema heavily optimized, will only collect information and validate
601 definitions when HTMLPURIFIER_SCHEMA_STRICT is true.
602 . AttrDef_URI unit tests and implementation refactored
603 . benchmarks/ directory now protected from public view with .htaccess file;
604 run the tests via command line
605 . URI scheme is munged off if there is no authority and the scheme is the
607 . All unit tests inherit from HTMLPurifier_Harness, not UnitTestCase
608 . Interface for URIScheme changed
609 . Generic URI object to hold components of URI added, most systems involved
610 in URI validation have been migrated to use it
611 . Custom filtering for URIs factored out to URIDefinition interface for
612 maximum extensibility
614 2.0.1, released 2007-06-27
615 ! Tag auto-closing now based on a ChildDef heuristic rather than a
616 manually set auto_close array; some behavior may change
617 ! Experimental AutoFormat functionality added: auto-paragraph and
618 linkify your HTML input by setting %AutoFormat.AutoParagraph and
619 %AutoFormat.Linkify to true
620 ! Newlines normalized internally, and then converted back to the
621 value of PHP_EOL. If this is not desired, set your newline format
622 using %Output.Newline.
623 ! Beta error collection, messages are implemented for the most generic
624 cases involving Lexing or Strategies
625 - Clean up special case code for <script> tags
626 - Reorder includes for DefinitionCache decorators, fixes a possible
628 - Fixed bug where manually modified definitions were not saved via cache
629 (mostly harmless, except for the fact that it would be a little slower)
630 - Configuration objects with different serials do not clobber each
631 others when revision numbers are unequal
632 - Improve Serializer DefinitionCache directory permissions checks
633 - DefinitionCache no longer throws errors when it encounters old
634 serial files that do not conform to the current style
635 - Stray xmlns attributes removed from configuration documentation
636 - configForm.php smoketest no longer has XSS vulnerability due to
637 unescaped print_r output
638 - Printer adheres to configuration's directives on output format
639 - Fix improperly named form field in ConfigForm printer
640 . Rewire some test-cases to swallow errors rather than expect them
641 . HTMLDefinition printer updated with some of the new attributes
642 . DefinitionCache keys reordered to reflect precedence: version number,
643 hash, then revision number
644 . %Core.DefinitionCache renamed to %Cache.DefinitionImpl
645 . Interlinking in configuration documentation added using
646 Injector_PurifierLinkify
647 . Directives now keep track of aliases to themselves
648 . Error collector now requires a severity to be passed, use PHP's internal
649 error constants for this
650 . HTMLPurifier_Config::getAllowedDirectivesForForm implemented, allows
651 much easier selective embedding of configuration values
652 . Doctype objects now accept public and system DTD identifiers
653 . %HTML.Doctype is now constrained by specific values, to specify a custom
654 doctype use new %HTML.CustomDoctype
655 . ConfigForm truncates long directives to keep the form small, and does
656 not re-output namespaces
658 2.0.0, released 2007-06-20
659 # Completely refactored HTMLModuleManager, decentralizing safety
661 # Transform modules changed to Tidy modules, which offer more flexibility
662 and better modularization
663 # Configuration object now finalizes itself when a read operation is
664 performed on it, ensuring that its internal state stays consistent.
665 To revert this behavior, you can set the $autoFinalize member variable
666 off, but it's not recommended.
667 # New compact syntax for AttrDef objects that can be used to instantiate
668 new objects via make()
669 # Definitions (esp. HTMLDefinition) are now cached for a significant
670 performance boost. You can disable caching by setting %Core.DefinitionCache
671 to null. You CANNOT edit raw definitions without setting the corresponding
672 DefinitionID directive (%HTML.DefinitionID for HTMLDefinition).
673 # Contents between <script> tags are now completely removed if <script>
675 # Prototype-declarations for Lexer removed in favor of configuration
676 determination of Lexer implementations.
677 ! HTML Purifier now works in PHP 4.3.2.
678 ! Configuration form-editing API makes tweaking HTMLPurifier_Config a
680 ! Configuration directives that accept hashes now allow new string
681 format: key1:value1,key2:value2
682 ! ConfigDoc now factored into OOP design
683 ! All deprecated elements now natively supported
684 ! Implement TinyMCE styled whitelist specification format in
686 ! Config object gives more friendly error messages when things go wrong
687 ! Advanced API implemented: easy functions for creating elements (addElement)
688 and attributes (addAttribute) on HTMLDefinition
689 ! Add native support for required attributes
690 - Deprecated and removed EnableRedundantUTF8Cleaning. It didn't even work!
691 - DOMLex will not emit errors when a custom error handler that does not
692 honor error_reporting is used
693 - StrictBlockquote child definition refrains from wrapping whitespace
695 - Bug resulting from tag transforms to non-allowed elements fixed
696 - ChildDef_Custom's regex generation has been improved, removing several
698 . Unit test for ElementDef created, ElementDef behavior modified to
700 . Added convenience functions for HTMLModule constructors
701 . AttrTypes now has accessor functions that should be used instead
702 of directly manipulating info
703 . TagTransform_Center deprecated in favor of generic TagTransform_Simple
704 . Add extra protection in AttrDef_URI against phantom Schemes
705 . Doctype object added to HTMLDefinition which describes certain aspects
706 of the operational document type
707 . Lexer is now pre-emptively included, with a conditional include for the
709 . HTMLDefinition and CSSDefinition have a common parent class: Definition.
710 . DirectLex can now track line-numbers
711 . Preliminary error collector is in place, although no code actually reports
713 . Factor out most of ValidateAttributes to new AttrValidator class
715 1.6.1, released 2007-05-05
716 ! Support for more deprecated attributes via transformations:
717 + hspace and vspace in img
718 + size and noshade in hr
721 + align in caption, table, img and hr
722 + type in ul, ol and li
723 ! DirectLex now preserves text in which a < bracket is followed by
724 a non-alphanumeric character. This means that certain emoticons
726 ! %Core.RemoveInvalidImg is now operational, when set to false invalid
727 images will hang around with an empty src
728 ! target attribute in a tag supported, use %Attr.AllowedFrameTargets
730 ! CSS property white-space now allows nowrap (supported in all modern
731 browsers) but not others (which have spotty browser implementations)
732 ! XHTML 1.1 mode now sort-of works without any fatal errors, and
733 lang is now moved over to xml:lang.
734 ! Attribute transformation smoketest available at smoketests/attrTransform.php
735 ! Transformation of font's size attribute now handles super-large numbers
736 - Possibly fatal bug with __autoload() fixed in module manager
737 - Invert HTMLModuleManager->addModule() processing order to check
738 prefixes first and then the literal module
739 - Empty strings get converted to empty arrays instead of arrays with
740 an empty string in them.
741 - Merging in attribute lists now works.
742 . Demo script removed: it has been added to the website's repository
743 . Basic.php script modified to work out of the box
744 . Refactor AttrTransform classes to reduce duplication
745 . AttrTransform_TextAlign axed in favor of a more general
746 AttrTransform_EnumToCSS, refer to HTMLModule/TransformToStrict.php to
747 see how the new equivalent is implemented
748 . Unit tests now use exclusively assertIdentical
750 1.6.0, released 2007-04-01
751 ! Support for most common deprecated attributes via transformations:
752 + bgcolor in td, th, tr and table
755 + width in td, th and hr
757 ! Support for CSS attribute 'height' added
758 ! Support for rel and rev attributes in a tags added, use %Attr.AllowedRel
759 and %Attr.AllowedRev to activate
760 - You can define ID blacklists using regular expressions via
761 %Attr.IDBlacklistRegexp
762 - Error messages are emitted when you attempt to "allow" elements or
763 attributes that HTML Purifier does not support
764 - Fix segfault in unit test. The problem is not very reproduceable and
765 I don't know what causes it, but a six line patch fixed it.
767 1.5.0, released 2007-03-23
768 ! Added a rudimentary I18N and L10N system modeled off MediaWiki. It
769 doesn't actually do anything yet, but keep your eyes peeled.
770 ! docs/enduser-utf8.html explains how to use UTF-8 and HTML Purifier
771 ! Newly structured HTMLDefinition modeled off of XHTML 1.1 modules.
772 I am loathe to release beta quality APIs, but this is exactly that;
773 don't use the internal interfaces if you're not willing to do migration
775 - Allow 'x' subtag in language codes
776 - Fixed buggy chameleon-support for ins and del
777 . Added support for IDREF attributes (i.e. for)
778 . Renamed HTMLPurifier_AttrDef_Class to HTMLPurifier_AttrDef_Nmtokens
779 . Removed context variable ParentType, replaced with IsInline, which
780 is false when you're not inline and an integer of the parent that
781 caused you to become inline when you are (so possibly zero)
782 . Removed ElementDef->type in favor of ElementDef->descendants_are_inline
783 and HTMLDefinition->content_sets
784 . StrictBlockquote now reports what elements its supposed to allow,
785 rather than what it does allow
786 . Removed HTMLDefinition->info_flow_elements in favor of
787 HTMLDefinition->content_sets['Flow']
788 . Removed redundant "exclusionary" definitions from DTD roster
789 . StrictBlockquote now requires a construction parameter as if it
790 were an Required ChildDef, this is the "real" set of allowed elements
791 . AttrDef partitioned into HTML, CSS and URI segments
792 . Modify Youtube filter regexp to be multiline
793 . Require both PHP5 and DOM extension in order to use DOMLex, fixes
794 some edge cases where a DOMDocument class exists in a PHP4 environment
795 due to DOM XML extension.
797 1.4.1, released 2007-01-21
798 ! docs/enduser-youtube.html updated according to new functionality
799 - YouTube IDs can have underscores and dashes
801 1.4.0, released 2007-01-21
802 ! Implemented list-style-image, URIs now allowed in list-style
803 ! Implemented background-image, background-repeat, background-attachment
804 and background-position CSS properties. Shorthand property background
805 supports all of these properties.
806 ! Configuration documentation looks nicer
807 ! Added %Core.EscapeNonASCIICharacters to workaround loss of Unicode
808 characters while %Core.Encoding is set to a non-UTF-8 encoding.
809 ! Support for configuration directive aliases added
810 ! Config object can now be instantiated from ini files
811 ! YouTube preservation code added to the core, with two lines of code
812 you can add it as a filter to your code. See smoketests/preserveYouTube.php
814 ! Moved SLOW to docs/enduser-slow.html and added code examples
815 - Replaced version check with functionality check for DOM (thanks Stephen
817 . Added smoketest 'all.php', which loads all other smoketests via frames
818 . Implemented AttrDef_CSSURI for url(http://google.com) style declarations
819 . Added convenient single test selector form on test runner
821 1.3.2, released 2006-12-25
822 ! HTMLPurifier object now accepts configuration arrays, no need to manually
823 instantiate a configuration object
824 ! Context object now accessible to outside
825 ! Added enduser-youtube.html, explains how to embed YouTube videos. See
826 also corresponding smoketest preserveYouTube.php.
827 ! Added purifyArray(), which takes a list of HTML and purifies it all
828 ! Added static member variable $version to HTML Purifier with PHP-compatible
829 version number string.
830 - Fixed fatal error thrown by upper-cased language attributes
831 - printDefinition.php: added labels, added better clarification
832 . HTMLPurifier_Config::create() added, takes mixed variable and converts into
833 a HTMLPurifier_Config object.
835 1.3.1, released 2006-12-06
836 ! Added HTMLPurifier.func.php stub for a convenient function to call the library
837 - Fixed bug in RemoveInvalidImg code that caused all images to be dropped
838 (thanks to .mario for reporting this)
839 . Standardized all attribute handling variables to attr, made it plural
841 1.3.0, released 2006-11-26
842 # Invalid images are now removed, rather than replaced with a dud
843 <img src="" alt="Invalid image" />. Previous behavior can be restored
844 with new directive %Core.RemoveInvalidImg set to false.
845 ! (X)HTML Strict now supported
846 + Transparently handles inline elements in block context (blockquote)
847 ! Added GET method to demo for easier validation, added 50kb max input size
848 ! New directive %HTML.BlockWrapper, for block-ifying inline elements
849 ! New directive %HTML.Parent, allows you to only allow inline content
850 ! New directives %HTML.AllowedElements and %HTML.AllowedAttributes to let
851 users narrow the set of allowed tags
852 ! <li value="4"> and <ul start="2"> now allowed in loose mode
853 ! New directives %URI.DisableExternalResources and %URI.DisableResources
854 ! New directive %Attr.DisableURI, which eliminates all hyperlinking
855 ! New directive %URI.Munge, munges URI so you can use some sort of redirector
856 service to avoid PageRank leaks or warn users that they are exiting your site.
857 ! Added spiffy new smoketest printDefinition.php, which lets you twiddle with
858 the configuration settings and see how the internal rules are affected.
859 ! New directive %URI.HostBlacklist for blocking links to bad hosts.
860 xssAttacks.php smoketest updated accordingly.
861 - Added missing type to ChildDef_Chameleon
862 - Remove Tidy option from demo if there is not Tidy available
863 . ChildDef_Required guards against empty tags
864 . Lookup table HTMLDefinition->info_flow_elements added
865 . Added peace-of-mind variable initialization to Strategy_FixNesting
866 . Added HTMLPurifier->info_parent_def, parent child processing made special
867 . Added internal documents briefly summarizing future progression of HTML
868 . HTMLPurifier_Config->getBatch($namespace) added
869 . More lenient casting to bool from string in HTMLPurifier_ConfigSchema
870 . Refactored ChildDef classes into their own files
872 1.2.0, released 2006-11-19
873 # ID attributes now disabled by default. New directives:
874 + %HTML.EnableAttrID - restores old behavior by allowing IDs
875 + %Attr.IDPrefix - %Attr.IDBlacklist alternative that munges all user IDs
876 so that they don't collide with your IDs
877 + %Attr.IDPrefixLocal - Same as above, but for when there are multiple
878 instances of user content on the page
879 + Profuse documentation on how to use these available in docs/enduser-id.txt
880 ! Added MODx plugin <http://modxcms.com/forums/index.php/topic,6604.0.html>
881 ! Added percent encoding normalization
882 ! XSS attacks smoketest given facelift
883 ! Configuration documentation now has table of contents
884 ! Added %URI.DisableExternal, which prevents links to external websites. You
885 can also use %URI.Host to permit absolute linking to subdomains
886 ! Non-accessible resources (ex. mailto) blocked from embedded URIs (img src)
887 - Type variable in HTMLDefinition was not being set properly, fixed
888 - Documentation updated
889 + TODO added request Phalanger
890 + TODO added request Native compression
891 + TODO added request Remove redundant tags
892 + TODO added possible plaintext formatter for HTML Purifier documentation
893 + Updated ConfigDoc TODO
894 + Improved inline comments in AttrDef/Class.php, AttrDef/CSS.php
896 + Revamped documentation into HTML, along with misc updates
897 - HTMLPurifier_Context doesn't throw a variable reference error if you attempt
898 to retrieve a non-existent variable
899 . Switched to purify()-wide Context object registry
900 . Refactored unit tests to minimize duplication
901 . XSS attack sheet updated
902 . configdoc.xml now has xml:space attached to default value nodes
903 . Allow configuration directives to permit null values
904 . Cleaned up test-cases to remove unnecessary swallowErrors()
906 1.1.2, released 2006-09-30
907 ! Add HTMLPurifier.auto.php stub file that configures include_path
908 - Documentation updated
909 + INSTALL document rewritten
910 + TODO added semi-lossy conversion
911 + API Doxygen docs' file exclusions updated
912 + Added notes on HTML versus XML attribute whitespace handling
913 + Noted that HTMLPurifier_ChildDef_Custom isn't being used
914 + Noted that config object's definitions are cached versions
915 - Fixed lack of attribute parsing in HTMLPurifier_Lexer_PEARSax3
916 - ftp:// URIs now have their typecodes checked
917 - Hooked up HTMLPurifier_ChildDef_Custom's unit tests (they weren't being run)
918 . Line endings standardized throughout project (svn:eol-style standardized)
919 . Refactored parseData() to general Lexer class
920 . Tester named "HTML Purifier" not "HTMLPurifier"
922 1.1.1, released 2006-09-24
923 ! Configuration option to optionally Tidy up output for indentation to make up
924 for dropped whitespace by DOMLex (pretty-printing for the entire application
925 should be done by a page-wide Tidy)
926 - Various documentation updates
927 - Fixed parse error in configuration documentation script
928 - Fixed fatal error in benchmark scripts, slightly augmented
929 - As far as possible, whitespace is preserved in-between table children
930 - Sample test-settings.php file included
932 1.1.0, released 2006-09-16
933 ! Directive documentation generation using XSLT
934 ! XHTML can now be turned off, output becomes <br>
935 - Made URI validator more forgiving: will ignore leading and trailing
936 quotes, apostrophes and less than or greater than signs.
937 - Enforce alphanumeric namespace and directive names for configuration.
938 - Table child definition made more flexible, will fix up poorly ordered elements
939 . Renamed ConfigDef to ConfigSchema
941 1.0.1, released 2006-09-04
942 - Fixed slight bug in DOMLex attribute parsing
943 - Fixed rejection of case-insensitive configuration values when there is a
944 set of allowed values. This manifested in %Core.Encoding.
945 - Fixed rejection of inline style declarations that had lots of extra
946 space in them. This manifested in TinyMCE.
948 1.0.0, released 2006-09-01
949 ! Shorthand CSS properties implemented: font, border, background, list-style
950 ! Basic color keywords translated into hexadecimal values
951 ! Table CSS properties implemented
952 ! Support for charsets other than UTF-8 (defined by iconv)
953 ! Malformed UTF-8 and non-SGML character detection and cleaning implemented
954 - Fixed broken numeric entity conversion
955 - API documentation completed
956 . (HTML|CSS)Definition de-singleton-ized
958 1.0.0beta, released 2006-08-16
959 ! First public release, most functionality implemented. Notable omissions are:
960 + Shorthand CSS properties
961 + Table CSS properties
962 + Deprecated attribute transformations