4 = KEY ====================
8 ==========================
10 If no interest is expressed for a feature that may require a considerable
11 amount of effort to implement, it may get endlessly delayed. Do not be
12 afraid to cast your vote for the next feature to be implemented!
16 - Incorporate data: support as implemented here:
17 http://htmlpurifier.org/phorum/read.php?3,3491,3548
18 - Incorporate download and resize support as implemented here:
19 http://htmlpurifier.org/phorum/read.php?3,2795,3628
20 - Incorporate remove <span> tags that don't do anything (no attributes):
21 http://htmlpurifier.org/phorum/read.php?5,2507
23 Things to do as soon as possible:
25 - Fix ImgRequired to handle data correctly
26 - Think about allowing explicit order of operations hooks for transforms
28 - Inputs don't do the right thing with submit
29 - Fix "<.<" bug (trailing < is removed if not EOD)
34 4.1 release [OMG CONFIG PONIES]
35 ! Fix Printer. It's from the old days when we didn't have decent XML classes
36 ! Factor demo.php into a set of Printer classes, and then create a stub
37 file for users here (inside the actual HTML Purifier library)
38 - Fix error handling with form construction
39 - Do encoding validation in Printers, or at least, where user data comes in
40 - Config: Add examples to everything (make built-in which also automatically
42 - Add "register" field to config schemas to eliminate dependence on
43 naming conventions (try to remember why we ultimately decided on tihs)
46 # Swap out code to use html5lib tokenizer and tree-builder
47 ! Allow turning off of FixNesting and required attribute insertion
49 5.1 release [It's All About Trust] (floating)
50 # Implement untrusted, dangerous elements/attributes
51 # Implement IDREF support (harder than it seems, since you cannot have
52 IDREFs to non-existent IDs)
53 - Implement <area> (client and server side image maps are blocking
55 # Frameset XHTML 1.0 and HTML 4.01 doctypes
56 - Figure out how to simultaneously set %CSS.Trusted and %HTML.Trusted (?)
58 5.2 release [Error'ed]
59 # Error logging for filtering/cleanup procedures
60 # Additional support for poorly written HTML
61 - Microsoft Word HTML cleaning (i.e. MsoNormal, but research essential!)
62 - Friendly strict handling of <address> (block -> <br>)
63 - XSS-attempt detection--certain errors are flagged XSS-like
64 - Append something to duplicate IDs so they're still usable (impl. note: the
65 dupe detector would also need to detect the suffix as well)
67 6.0 release [Beyond HTML]
68 # Legit token based CSS parsing (will require revamping almost every
69 AttrDef class). Probably will use CSSTidy
70 # More control over allowed CSS properties using a modularization
71 # IRI support (this includes IDN)
72 - Standardize token armor for all areas of processing
74 7.0 release [To XML and Beyond]
75 - Extended HTML capabilities based on namespacing and tag transforms (COMPLEX)
76 - Hooks for adding custom processors to custom namespaced tags and
77 attributes, offer default implementation
78 - Lots of documentation and samples
81 - More refactoring to take advantage of PHP5's facilities
82 - Refactor unit tests into lots of test methods
83 - Plugins for major CMSes (COMPLEX)
85 - Also, a FAQ for extension writers with HTML Purifier
89 - Syntax highlighting (with GeSHi) with <pre> and possibly <?php
90 - Look at http://drupal.org/project/Modules/category/63 for ideas
93 ! Support exporting configuration, so users can easily tweak settings
94 in the demo, and then copy-paste into their own setup
95 - Advanced URI filtering schemes (see docs/proposal-new-directives.txt)
96 - Allow scoped="scoped" attribute in <style> tags; may be troublesome
97 because regular CSS has no way of uniquely identifying nodes, so we'd
99 - Explain how to use HTML Purifier in non-PHP languages / create
100 a simple command line stub (or complicated?)
101 - Fixes for Firefox's inability to handle COL alignment props (Bug 915)
102 - Automatically add non-breaking spaces to empty table cells when
103 empty-cells:show is applied to have compatibility with Internet Explorer
104 - Table of Contents generation (XHTML Compiler might be reusable). May also
105 be out-of-band information.
106 - Full set of color keywords. Also, a way to add onto them without
107 finalizing the configuration object.
108 - Write a var_export and memcached DefinitionCache - Denis
109 - Built-in support for target="_blank" on all external links
110 - Convert RTL/LTR override characters to <bdo> tags, or vice versa on demand.
111 Also, enable disabling of directionality
112 ? Externalize inline CSS to promote clean HTML, proposed by Sander Tekelenburg
113 ? Remove redundant tags, ex. <u><u>Underlined</u></u>. Implementation notes:
114 1. Analyzing which tags to remove duplicants
115 2. Ensure attributes are merged into the parent tag
116 3. Extend the tag exclusion system to specify whether or not the
117 contents should be dropped or not (currently, there's code that could do
118 something like this if it didn't drop the inner text too.)
120 Maintenance related (slightly boring)
121 # CHMOD install script for PEAR installs
122 ! Factor out command line parser into its own class, and unit test it
123 - Reduce size of internal data-structures (esp. HTMLDefinition)
124 - Allow merging configurations. Thus,
128 a -> b -> c -> d -> default
129 Maybe allow more fine-grained tuning of this behavior. Alternatively,
130 encourage people to use short plist depths before building them up.
133 ChildDef related (very boring)
134 - Abstract ChildDef_BlockQuote to work with all elements that only
135 allow blocks in them, required or optional
136 - Implement lenient <ruby> child validation
139 - Non-lossy smart alternate character encoding transformations (unless
141 - Pretty-printing HTML: users can use Tidy on the output on entire page
142 - Native content compression, whitespace stripping: use gzip if this is