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TODO List = KEY ==================== # Flagship - Regular ? Maybe I'll Do It ========================== If no interest is expressed for a feature that may require a considerable amount of effort to implement, it may get endlessly delayed. Do not be afraid to cast your vote for the next feature to be implemented! Things to do as soon as possible: - http://htmlpurifier.org/phorum/read.php?3,5560,6307#msg-6307 - Think about allowing explicit order of operations hooks for transforms - Fix "<.<" bug (trailing < is removed if not EOD) - Build in better internal state dumps and debugging tools for remote debugging - Allowed/Allowed* have strange interactions when both set ? Transform lone embeds into object tags - Deprecated config options that emit warnings when you set them (with' a way of muting the warning if you really want to) - Make HTML.Trusted work with Output.FlashCompat - HTML.Trusted and HTML.SafeObject have funny interaction; general problem is what to do when a module "supersedes" another (see also tables and basic tables.) This is a little dicier because HTML.SafeObject has some extra functionality that trusted might find useful. See http://htmlpurifier.org/phorum/read.php?3,5762,6100 FUTURE VERSIONS --------------- 4.9 release [OMG CONFIG PONIES] ! Fix Printer. It's from the old days when we didn't have decent XML classes ! Factor demo.php into a set of Printer classes, and then create a stub file for users here (inside the actual HTML Purifier library) - Fix error handling with form construction - Do encoding validation in Printers, or at least, where user data comes in - Config: Add examples to everything (make built-in which also automatically gives output) - Add "register" field to config schemas to eliminate dependence on naming conventions (try to remember why we ultimately decided on tihs) 5.0 release [HTML 5] # Swap out code to use html5lib tokenizer and tree-builder ! Allow turning off of FixNesting and required attribute insertion 5.1 release [It's All About Trust] (floating) # Implement untrusted, dangerous elements/attributes # Implement IDREF support (harder than it seems, since you cannot have IDREFs to non-existent IDs) - Implement <area> (client and server side image maps are blocking on IDREF support) # Frameset XHTML 1.0 and HTML 4.01 doctypes - Figure out how to simultaneously set %CSS.Trusted and %HTML.Trusted (?) 5.2 release [Error'ed] # Error logging for filtering/cleanup procedures # Additional support for poorly written HTML - Microsoft Word HTML cleaning (i.e. MsoNormal, but research essential!) - Friendly strict handling of <address> (block -> <br>) - XSS-attempt detection--certain errors are flagged XSS-like - Append something to duplicate IDs so they're still usable (impl. note: the dupe detector would also need to detect the suffix as well) 6.0 release [Beyond HTML] # Legit token based CSS parsing (will require revamping almost every AttrDef class). Probably will use CSSTidy # More control over allowed CSS properties using a modularization # IRI support (this includes IDN) - Standardize token armor for all areas of processing 7.0 release [To XML and Beyond] - Extended HTML capabilities based on namespacing and tag transforms (COMPLEX) - Hooks for adding custom processors to custom namespaced tags and attributes, offer default implementation - Lots of documentation and samples Ongoing - More refactoring to take advantage of PHP5's facilities - Refactor unit tests into lots of test methods - Plugins for major CMSes (COMPLEX) - phpBB - Also, a FAQ for extension writers with HTML Purifier AutoFormat - Smileys - Syntax highlighting (with GeSHi) with <pre> and possibly <?php - Look at http://drupal.org/project/Modules/category/63 for ideas Neat feature related ! Support exporting configuration, so users can easily tweak settings in the demo, and then copy-paste into their own setup - Advanced URI filtering schemes (see docs/proposal-new-directives.txt) - Allow scoped="scoped" attribute in <style> tags; may be troublesome because regular CSS has no way of uniquely identifying nodes, so we'd have to generate IDs - Explain how to use HTML Purifier in non-PHP languages / create a simple command line stub (or complicated?) - Fixes for Firefox's inability to handle COL alignment props (Bug 915) - Automatically add non-breaking spaces to empty table cells when empty-cells:show is applied to have compatibility with Internet Explorer - Table of Contents generation (XHTML Compiler might be reusable). May also be out-of-band information. - Full set of color keywords. Also, a way to add onto them without finalizing the configuration object. - Write a var_export and memcached DefinitionCache - Denis - Built-in support for target="_blank" on all external links - Convert RTL/LTR override characters to <bdo> tags, or vice versa on demand. Also, enable disabling of directionality ? Externalize inline CSS to promote clean HTML, proposed by Sander Tekelenburg ? Remove redundant tags, ex. <u><u>Underlined</u></u>. Implementation notes: 1. Analyzing which tags to remove duplicants 2. Ensure attributes are merged into the parent tag 3. Extend the tag exclusion system to specify whether or not the contents should be dropped or not (currently, there's code that could do something like this if it didn't drop the inner text too.) ? Make AutoParagraph also support paragraph-izing double <br> tags, and not just double newlines. This is kind of tough to do in the current framework, though, and might be reasonably approximated by search replacing double <br>s with newlines before running it through HTML Purifier. Maintenance related (slightly boring) # CHMOD install script for PEAR installs ! Factor out command line parser into its own class, and unit test it - Reduce size of internal data-structures (esp. HTMLDefinition) - Allow merging configurations. Thus, a -> b -> default c -> d -> default becomes a -> b -> c -> d -> default Maybe allow more fine-grained tuning of this behavior. Alternatively, encourage people to use short plist depths before building them up. - Time PHPT tests ChildDef related (very boring) - Abstract ChildDef_BlockQuote to work with all elements that only allow blocks in them, required or optional - Implement lenient <ruby> child validation Wontfix - Non-lossy smart alternate character encoding transformations (unless patch provided) - Pretty-printing HTML: users can use Tidy on the output on entire page - Native content compression, whitespace stripping: use gzip if this is really important vim: et sw=4 sts=4