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htmlpurifier/TODO
Edward Z. Yang 522c8ed7c2 [3.1.0] The bulk of autoload support added
- Add FSTools:globr()
- require_once removed from all files
- HTMLPurifier.autoload.php added to register autoload handler
- Removed redundant chdir in maintenance script
- Modified standalone to use HTMLPurifier.includes.php for including stuff
- Added maintenance script remove-require-once.php which we used once and should never use again

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1516 48356398-32a2-884e-a903-53898d9a118a
2008-01-27 01:54:41 +00:00

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TODO List
= KEY ====================
# Flagship
- Regular
? Maybe I'll Do It
==========================
If no interest is expressed for a feature that may required 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!
IMPORTANT
- Put our new configuration thing into effect
- Get rid of the manual includes in ConfigSchema (this means changing
generate-includes.php too)
- Get everything into configuration objects (filters, I'm looking at you)
- Factor demo.php into a set of Printer classes, and then create a stub
file for users here
- Test HTMLPurifier.auto.php
3.1 release [Error'ed]
# Error logging for filtering/cleanup procedures
- XSS-attempt detection
3.2 release [Do What I Mean, Not What I Say]
# Additional support for poorly written HTML
- Microsoft Word HTML cleaning (i.e. MsoNormal, but research essential!)
- Friendly strict handling of <address> (block -> <br>)
- 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.)
- Remove <span> tags that don't do anything (no attributes)
- Remove empty inline tags<i></i>
- Append something to duplicate IDs so they're still usable (impl. note: the
dupe detector would also need to detect the suffix as well)
- Externalize inline CSS to promote clean HTML
3.3 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)
# Frameset XHTML 1.0 and HTML 4.01 doctypes
4.0 release [Beyond HTML]
# Legit token based CSS parsing (will require revamping almost every
AttrDef class). Probably will use CSSTidy class
# More control over allowed CSS properties (maybe modularize it in the
same fashion!)
- Standardize token armor for all areas of processing
- Convert RTL/LTR override characters to <bdo> tags, or vice versa on demand.
Also, enable disabling of directionality
- Table of Contents generation (XHTML Compiler might be reusable)
5.0 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
- Lots of profiling, make it faster!
- Plugins for major CMSes (COMPLEX)
- phpBB
- more! (look for ones that use WYSIWYGs)
- Complete basic smoketests
AutoFormat
- Smileys
- Syntax highlighting with <pre> and possibly <?php
- Look at http://drupal.org/project/Modules/category/63 for ideas
Unknown release (on a scratch-an-itch basis)
# CHMOD install script for PEAR installs
? Have 'lang' attribute be checked against official lists, achieved by
encoding all characters that have string entity equivalents
- Abstract ChildDef_BlockQuote to work with all elements that only
allow blocks in them, required or optional
- Reorganize Unit Tests
- Advanced URI filtering schemes (see docs/proposal-new-directives.txt)
- Implement lenient <ruby> child validation
- 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
- Distinguish between default settings and explicitly set settings, so
configurations can be merged
- Nested configuration namespaces
- 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
Requested
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 (don't rely on Tidy, make
sure we don't remove from <pre> or related tags): use gzip if this is
really important