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)
30 - http://htmlpurifier.org/phorum/read.php?5,2267,4308#msg-4308
35 4.1 release [OMG CONFIG PONIES]
36 ! Fix Printer. It's from the old days when we didn't have decent XML classes
37 ! Factor demo.php into a set of Printer classes, and then create a stub
38 file for users here (inside the actual HTML Purifier library)
39 - Fix error handling with form construction
40 - Do encoding validation in Printers, or at least, where user data comes in
41 - Config: Add examples to everything (make built-in which also automatically
43 - Add "register" field to config schemas to eliminate dependence on
44 naming conventions (try to remember why we ultimately decided on tihs)
47 # Swap out code to use html5lib tokenizer and tree-builder
48 ! Allow turning off of FixNesting and required attribute insertion
50 5.1 release [It's All About Trust] (floating)
51 # Implement untrusted, dangerous elements/attributes
52 # Implement IDREF support (harder than it seems, since you cannot have
53 IDREFs to non-existent IDs)
54 - Implement <area> (client and server side image maps are blocking
56 # Frameset XHTML 1.0 and HTML 4.01 doctypes
57 - Figure out how to simultaneously set %CSS.Trusted and %HTML.Trusted (?)
59 5.2 release [Error'ed]
60 # Error logging for filtering/cleanup procedures
61 # Additional support for poorly written HTML
62 - Microsoft Word HTML cleaning (i.e. MsoNormal, but research essential!)
63 - Friendly strict handling of <address> (block -> <br>)
64 - XSS-attempt detection--certain errors are flagged XSS-like
65 - Append something to duplicate IDs so they're still usable (impl. note: the
66 dupe detector would also need to detect the suffix as well)
68 6.0 release [Beyond HTML]
69 # Legit token based CSS parsing (will require revamping almost every
70 AttrDef class). Probably will use CSSTidy
71 # More control over allowed CSS properties using a modularization
72 # IRI support (this includes IDN)
73 - Standardize token armor for all areas of processing
75 7.0 release [To XML and Beyond]
76 - Extended HTML capabilities based on namespacing and tag transforms (COMPLEX)
77 - Hooks for adding custom processors to custom namespaced tags and
78 attributes, offer default implementation
79 - Lots of documentation and samples
82 - More refactoring to take advantage of PHP5's facilities
83 - Refactor unit tests into lots of test methods
84 - Plugins for major CMSes (COMPLEX)
86 - Also, a FAQ for extension writers with HTML Purifier
90 - Syntax highlighting (with GeSHi) with <pre> and possibly <?php
91 - Look at http://drupal.org/project/Modules/category/63 for ideas
94 ! Support exporting configuration, so users can easily tweak settings
95 in the demo, and then copy-paste into their own setup
96 - Advanced URI filtering schemes (see docs/proposal-new-directives.txt)
97 - Allow scoped="scoped" attribute in <style> tags; may be troublesome
98 because regular CSS has no way of uniquely identifying nodes, so we'd
100 - Explain how to use HTML Purifier in non-PHP languages / create
101 a simple command line stub (or complicated?)
102 - Fixes for Firefox's inability to handle COL alignment props (Bug 915)
103 - Automatically add non-breaking spaces to empty table cells when
104 empty-cells:show is applied to have compatibility with Internet Explorer
105 - Table of Contents generation (XHTML Compiler might be reusable). May also
106 be out-of-band information.
107 - Full set of color keywords. Also, a way to add onto them without
108 finalizing the configuration object.
109 - Write a var_export and memcached DefinitionCache - Denis
110 - Built-in support for target="_blank" on all external links
111 - Convert RTL/LTR override characters to <bdo> tags, or vice versa on demand.
112 Also, enable disabling of directionality
113 ? Externalize inline CSS to promote clean HTML, proposed by Sander Tekelenburg
114 ? Remove redundant tags, ex. <u><u>Underlined</u></u>. Implementation notes:
115 1. Analyzing which tags to remove duplicants
116 2. Ensure attributes are merged into the parent tag
117 3. Extend the tag exclusion system to specify whether or not the
118 contents should be dropped or not (currently, there's code that could do
119 something like this if it didn't drop the inner text too.)
121 Maintenance related (slightly boring)
122 # CHMOD install script for PEAR installs
123 ! Factor out command line parser into its own class, and unit test it
124 - Reduce size of internal data-structures (esp. HTMLDefinition)
125 - Allow merging configurations. Thus,
129 a -> b -> c -> d -> default
130 Maybe allow more fine-grained tuning of this behavior. Alternatively,
131 encourage people to use short plist depths before building them up.
134 ChildDef related (very boring)
135 - Abstract ChildDef_BlockQuote to work with all elements that only
136 allow blocks in them, required or optional
137 - Implement lenient <ruby> child validation
140 - Non-lossy smart alternate character encoding transformations (unless
142 - Pretty-printing HTML: users can use Tidy on the output on entire page
143 - Native content compression, whitespace stripping: use gzip if this is