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  1. <?xml version="1.0" encoding="UTF-8"?>

  2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"

  3.     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

  4. <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>

  5. <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

  6. <meta name="description" content="Tables detailing HTML element and CSS property implementation coverage in HTML Purifier." />

  7. <link rel="stylesheet" type="text/css" href="./style.css" />

  8. 

  9. <title>Implementation Progress - HTML Purifier</title>

  10. 

  11. <style type="text/css">

  12. 

  13. td {padding-right:1em;border-bottom:1px solid #000;padding-left:0.5em;}

  14. th {text-align:left;padding-top:1.4em;font-size:13pt;

  15.     border-bottom:2px solid #000;background:#FFF;}

  16. thead th {text-align:left;padding:0.1em;background-color:#EEE;}

  17. 

  18. .impl-yes {background:#9D9;}

  19. .impl-partial {background:#FFA;}

  20. .impl-no {background:#CCC;}

  21. 

  22. .danger {color:#600;}

  23. .css1 {color:#060;}

  24. .required {font-weight:bold;}

  25. .feature {color:#999;}

  26. 

  27. </style>

  28. 

  29. </head><body>

  30. 

  31. <h1>Implementation Progress</h1>

  32. 

  33. <div id="filing">Filed under Development</div>

  34. <div id="index">Return to the <a href="index.html">index</a>.</div>

  35. <div id="home"><a href="http://htmlpurifier.org/">HTML Purifier</a> End-User Documentation</div>

  36. 

  37. <p>

  38.   <strong>Warning:</strong> This table is kept for historical purposes and

  39.   is not being actively updated.

  40. </p>

  41. 

  42. <h2>Key</h2>

  43. 

  44. <table cellspacing="0"><tbody>

  45. <tr><td class="impl-yes">Implemented</td></tr>

  46. <tr><td class="impl-partial">Partially implemented</td></tr>

  47. <tr><td class="impl-no">Not priority to implement</td></tr>

  48. <tr><td class="danger">Dangerous attribute/property</td></tr>

  49. <tr><td class="css1">Present in CSS1</td></tr>

  50. <tr><td class="feature">Feature, requires extra work</td></tr>

  51. </tbody></table>

  52. 

  53. <h2>CSS</h2>

  54. 

  55. <table cellspacing="0">

  56. 

  57. <thead>

  58. <tr><th>Name</th><th>Notes</th></tr>

  59. </thead>

  60. 

  61. <!--

  62. <tr><td>-</td><td>-</td></tr>

  63. -->

  64. 

  65. <tbody>

  66. <tr><th colspan="2">Standard</th></tr>

  67. <tr class="css1 impl-yes"><td>background-color</td><td>COMPOSITE(&lt;color&gt;, transparent)</td></tr>

  68. <tr class="css1 impl-yes"><td>background</td><td>SHORTHAND, currently alias for background-color</td></tr>

  69. <tr class="css1 impl-yes"><td>border</td><td>SHORTHAND, MULTIPLE</td></tr>

  70. <tr class="css1 impl-yes"><td>border-color</td><td>MULTIPLE</td></tr>

  71. <tr class="css1 impl-yes"><td>border-style</td><td>MULTIPLE</td></tr>

  72. <tr class="css1 impl-yes"><td>border-width</td><td>MULTIPLE</td></tr>

  73. <tr class="css1 impl-yes"><td>border-*</td><td>SHORTHAND</td></tr>

  74. <tr class="impl-yes"><td>border-*-color</td><td>COMPOSITE(&lt;color&gt;, transparent)</td></tr>

  75. <tr class="impl-yes"><td>border-*-style</td><td>ENUM(none, hidden, dotted, dashed,

  76.     solid, double, groove, ridge, inset, outset)</td></tr>

  77. <tr class="css1 impl-yes"><td>border-*-width</td><td>COMPOSITE(&lt;length&gt;, thin, medium, thick)</td></tr>

  78. <tr class="css1 impl-yes"><td>clear</td><td>ENUM(none, left, right, both)</td></tr>

  79. <tr class="css1 impl-yes"><td>color</td><td>&lt;color&gt;</td></tr>

  80. <tr class="css1 impl-yes"><td>float</td><td>ENUM(left, right, none), May require layout

  81.     precautions with clear</td></tr>

  82. <tr class="css1 impl-yes"><td>font</td><td>SHORTHAND</td></tr>

  83. <tr class="css1 impl-yes"><td>font-family</td><td>CSS validator may complain if fallback font

  84.     family not specified</td></tr>

  85. <tr class="css1 impl-yes"><td>font-size</td><td>COMPOSITE(&lt;absolute-size&gt;,

  86.     &lt;relative-size&gt;, &lt;length&gt;, &lt;percentage&gt;)</td></tr>

  87. <tr class="css1 impl-yes"><td>font-style</td><td>ENUM(normal, italic, oblique)</td></tr>

  88. <tr class="css1 impl-yes"><td>font-variant</td><td>ENUM(normal, small-caps)</td></tr>

  89. <tr class="css1 impl-yes"><td>font-weight</td><td>ENUM(normal, bold, bolder, lighter,

  90.     100, 200, 300, 400, 500, 600, 700, 800, 900), maybe special code for

  91.     in-between integers</td></tr>

  92. <tr class="css1 impl-yes"><td>letter-spacing</td><td>COMPOSITE(&lt;length&gt;, normal)</td></tr>

  93. <tr class="css1 impl-yes"><td>line-height</td><td>COMPOSITE(&lt;number&gt;,

  94.     &lt;length&gt;, &lt;percentage&gt;, normal)</td></tr>

  95. <tr class="css1 impl-yes"><td>list-style-position</td><td>ENUM(inside, outside),

  96.     Strange behavior in browsers</td></tr>

  97. <tr class="css1 impl-yes"><td>list-style-type</td><td>ENUM(...),

  98.     Well-supported values are: disc, circle, square,

  99.     decimal, lower-roman, upper-roman, lower-alpha and upper-alpha. See also

  100.     CSS 3. Mostly IE lack of support.</td></tr>

  101. <tr class="css1 impl-yes"><td>list-style</td><td>SHORTHAND</td></tr>

  102. <tr class="css1 impl-yes"><td>margin</td><td>MULTIPLE</td></tr>

  103. <tr class="css1 impl-yes"><td>margin-*</td><td>COMPOSITE(&lt;length&gt;,

  104.     &lt;percentage&gt;, auto)</td></tr>

  105. <tr class="css1 impl-yes"><td>padding</td><td>MULTIPLE</td></tr>

  106. <tr class="css1 impl-yes"><td>padding-*</td><td>COMPOSITE(&lt;length&gt;(positive),

  107.     &lt;percentage&gt;(positive))</td></tr>

  108. <tr class="css1 impl-yes"><td>text-align</td><td>ENUM(left, right,

  109.     center, justify)</td></tr>

  110. <tr class="css1 impl-yes"><td>text-decoration</td><td>No blink (argh my eyes), not

  111.     enum, can be combined (composite sorta): underline, overline,

  112.     line-through</td></tr>

  113. <tr class="css1 impl-yes"><td>text-indent</td><td>COMPOSITE(&lt;length&gt;,

  114.     &lt;percentage&gt;)</td></tr>

  115. <tr class="css1 impl-yes"><td>text-transform</td><td>ENUM(capitalize, uppercase,

  116.     lowercase, none)</td></tr>

  117. <tr class="css1 impl-yes"><td>width</td><td>COMPOSITE(&lt;length&gt;,

  118.     &lt;percentage&gt;, auto), Interesting</td></tr>

  119. <tr class="css1 impl-yes"><td>word-spacing</td><td>COMPOSITE(&lt;length&gt;, auto),

  120.     IE 5 no support</td></tr>

  121. </tbody>

  122. 

  123. <tbody>

  124. <tr><th colspan="2">Table</th></tr>

  125. <tr class="impl-yes"><td>border-collapse</td><td>ENUM(collapse, seperate)</td></tr>

  126. <tr class="impl-yes"><td>border-space</td><td>MULTIPLE</td></tr>

  127. <tr class="impl-yes"><td>caption-side</td><td>ENUM(top, bottom)</td></tr>

  128. <tr class="feature"><td>empty-cells</td><td>ENUM(show, hide), No IE support makes this useless,

  129.     possible fix with &amp;nbsp;? Unknown release milestone.</td></tr>

  130. <tr class="impl-yes"><td>table-layout</td><td>ENUM(auto, fixed)</td></tr>

  131. <tr class="impl-yes css1"><td>vertical-align</td><td>COMPOSITE(ENUM(baseline, sub,

  132.     super, top, text-top, middle, bottom, text-bottom), &lt;percentage&gt;,

  133.     &lt;length&gt;) Also applies to others with explicit height</td></tr>

  134. </tbody>

  135. 

  136. <tbody>

  137. <tr><th colspan="2">Absolute positioning, unknown release milestone</th></tr>

  138. <tr class="danger impl-no"><td>bottom</td><td rowspan="4">Dangerous, must be non-negative to even be considered,

  139.     but it's still possible to arbitrarily position by running over.</td></tr>

  140. <tr class="danger impl-no"><td>left</td></tr>

  141. <tr class="danger impl-no"><td>right</td></tr>

  142. <tr class="danger impl-no"><td>top</td></tr>

  143. <tr class="impl-no"><td>clip</td><td>-</td></tr>

  144. <tr class="danger impl-no"><td>position</td><td>ENUM(static, relative, absolute, fixed)

  145.     relative not absolute?</td></tr>

  146. <tr class="danger impl-no"><td>z-index</td><td>Dangerous</td></tr>

  147. </tbody>

  148. 

  149. <tbody>

  150. <tr><th colspan="2">Unknown</th></tr>

  151. <tr class="danger css1 impl-yes"><td>background-image</td><td>Dangerous</td></tr>

  152. <tr class="css1 impl-yes"><td>background-attachment</td><td>ENUM(scroll, fixed),

  153.     Depends on background-image</td></tr>

  154. <tr class="css1 impl-yes"><td>background-position</td><td>Depends on background-image</td></tr>

  155. <tr class="danger impl-no"><td>cursor</td><td>Dangerous but fluffy</td></tr>

  156. <tr class="danger impl-yes"><td>display</td><td>ENUM(...), Dangerous but interesting;

  157.     will not implement list-item, run-in (Opera only) or table (no IE);

  158.     inline-block has incomplete IE6 support and requires -moz-inline-box

  159.     for Mozilla. Unknown target milestone.</td></tr>

  160. <tr class="css1 impl-yes"><td>height</td><td>Interesting, why use it? Unknown target milestone.</td></tr>

  161. <tr class="danger css1 impl-yes"><td>list-style-image</td><td>Dangerous?</td></tr>

  162. <tr class="impl-no"><td>max-height</td><td rowspan="4">No IE 5/6</td></tr>

  163. <tr class="impl-no"><td>min-height</td></tr>

  164. <tr class="impl-no"><td>max-width</td></tr>

  165. <tr class="impl-no"><td>min-width</td></tr>

  166. <tr class="impl-no"><td>orphans</td><td>No IE support</td></tr>

  167. <tr class="impl-no"><td>widows</td><td>No IE support</td></tr>

  168. <tr><td>overflow</td><td>ENUM, IE 5/6 almost (remove visible if set). Unknown target milestone.</td></tr>

  169. <tr><td>page-break-after</td><td>ENUM(auto, always, avoid, left, right),

  170.     IE 5.5/6 and Opera. Unknown target milestone.</td></tr>

  171. <tr><td>page-break-before</td><td>ENUM(auto, always, avoid, left, right),

  172.     Mostly supported. Unknown target milestone.</td></tr>

  173. <tr><td>page-break-inside</td><td>ENUM(avoid, auto), Opera only. Unknown target milestone.</td></tr>

  174. <tr class="impl-no"><td>quotes</td><td>May be dropped from CSS2, fairly useless for inline context</td></tr>

  175. <tr class="danger impl-yes"><td>visibility</td><td>ENUM(visible, hidden, collapse),

  176.     Dangerous</td></tr>

  177. <tr class="css1 feature impl-partial"><td>white-space</td><td>ENUM(normal, pre, nowrap, pre-wrap,

  178.     pre-line), Spotty implementation:

  179.     pre (no IE 5/6), <em>nowrap</em> (no IE 5, supported),

  180.     pre-wrap (only Opera), pre-line (no support). Fixable? Unknown target milestone.</td></tr>

  181. </tbody>

  182. 

  183. <tbody class="impl-no">

  184. <tr><th colspan="2">Aural</th></tr>

  185. <tr><td>azimuth</td><td>-</td></tr>

  186. <tr><td>cue</td><td>-</td></tr>

  187. <tr><td>cue-after</td><td>-</td></tr>

  188. <tr><td>cue-before</td><td>-</td></tr>

  189. <tr><td>elevation</td><td>-</td></tr>

  190. <tr><td>pause-after</td><td>-</td></tr>

  191. <tr><td>pause-before</td><td>-</td></tr>

  192. <tr><td>pause</td><td>-</td></tr>

  193. <tr><td>pitch-range</td><td>-</td></tr>

  194. <tr><td>pitch</td><td>-</td></tr>

  195. <tr><td>play-during</td><td>-</td></tr>

  196. <tr><td>richness</td><td>-</td></tr>

  197. <tr><td>speak-header</td><td>Table related</td></tr>

  198. <tr><td>speak-numeral</td><td>-</td></tr>

  199. <tr><td>speak-punctuation</td><td>-</td></tr>

  200. <tr><td>speak</td><td>-</td></tr>

  201. <tr><td>speech-rate</td><td>-</td></tr>

  202. <tr><td>stress</td><td>-</td></tr>

  203. <tr><td>voice-family</td><td>-</td></tr>

  204. <tr><td>volume</td><td>-</td></tr>

  205. </tbody>

  206. 

  207. <tbody class="impl-no">

  208. <tr><th colspan="2">Will not implement</th></tr>

  209. <tr><td>content</td><td>Not applicable for inline styles</td></tr>

  210. <tr><td>counter-increment</td><td>Needs content, Opera only</td></tr>

  211. <tr><td>counter-reset</td><td>Needs content, Opera only</td></tr>

  212. <tr><td>direction</td><td>No support</td></tr>

  213. <tr><td>outline-color</td><td rowspan="4">IE Mac and Opera on outside,

  214. Mozilla on inside and needs -moz-outline, no IE support.</td></tr>

  215.     <tr><td>outline-style</td></tr>

  216.     <tr><td>outline-width</td></tr>

  217.     <tr><td>outline</td></tr>

  218. <tr><td>unicode-bidi</td><td>No support</td></tr>

  219. </tbody>

  220. 

  221. </table>

  222. 

  223. <h2>Interesting Attributes</h2>

  224. 

  225. <table cellspacing="0">

  226. 

  227. <thead>

  228. <tr><th>Attribute</th><th>Tags</th><th>Notes</th></tr>

  229. </thead>

  230. 

  231. <!--

  232. <tr><th></th></tr>

  233. <tbody>

  234. <tr><td>-</td><td>-</td><td>-</td></tr>

  235. </tbody>

  236. -->

  237. 

  238. <tbody>

  239. <tr><th colspan="3">CSS</th></tr>

  240. <tr class="impl-yes"><td>style</td><td>All</td><td>Parser is reasonably functional. Status here doesn't count individual properties.</td></tr>

  241. </tbody>

  242. 

  243. <tbody>

  244. <tr><th colspan="3">Questionable</th></tr>

  245. <tr class="impl-no"><td>accesskey</td><td>A</td><td>May interfere with main interface</td></tr>

  246. <tr class="impl-no"><td>tabindex</td><td>A</td><td>May interfere with main interface</td></tr>

  247. <tr class="impl-yes"><td>target</td><td>A</td><td>Config enabled, only useful for frame layouts, disallowed in strict</td></tr>

  248. </tbody>

  249. 

  250. <tbody>

  251. <tr><th colspan="3">Miscellaneous</th></tr>

  252. <tr><td>datetime</td><td>DEL, INS</td><td>No visible effect, ISO format</td></tr>

  253. <tr class="impl-yes"><td>rel</td><td>A</td><td>Largely user-defined: nofollow, tag (see microformats)</td></tr>

  254. <tr class="impl-yes"><td>rev</td><td>A</td><td>Largely user-defined: vote-*</td></tr>

  255. <tr class="feature"><td>axis</td><td>TD, TH</td><td>W3C only: No browser implementation</td></tr>

  256. <tr class="feature"><td>char</td><td>COL, COLGROUP, TBODY, TD, TFOOT, TH, THEAD, TR</td><td>W3C only: No browser implementation</td></tr>

  257. <tr class="feature"><td>headers</td><td>TD, TH</td><td>W3C only: No browser implementation</td></tr>

  258. <tr class="impl-yes"><td>scope</td><td>TD, TH</td><td>W3C only: No browser implementation</td></tr>

  259. </tbody>

  260. 

  261. <tbody class="impl-yes">

  262. <tr><th colspan="3">URI</th></tr>

  263. <tr><td rowspan="2">cite</td><td>BLOCKQUOTE, Q</td><td>For attribution</td></tr>

  264.     <tr><td>DEL, INS</td><td>Link to explanation why it changed</td></tr>

  265. <tr><td>href</td><td>A</td><td>-</td></tr>

  266. <tr><td>longdesc</td><td>IMG</td><td>-</td></tr>

  267. <tr class="required"><td>src</td><td>IMG</td><td>Required</td></tr>

  268. </tbody>

  269. 

  270. <tbody>

  271. <tr><th colspan="3">Transform</th></tr>

  272. <tr class="impl-yes"><td rowspan="5">align</td><td>CAPTION</td><td>'caption-side' for top/bottom, 'text-align' for left/right</td></tr>

  273.     <tr class="impl-yes"><td>IMG</td><td rowspan="3">See specimens/html-align-to-css.html</td></tr>

  274.     <tr class="impl-yes"><td>TABLE</td></tr>

  275.     <tr class="impl-yes"><td>HR</td></tr>

  276.     <tr class="impl-yes"><td>H1, H2, H3, H4, H5, H6, P</td><td>Equivalent style 'text-align'</td></tr>

  277. <tr class="required impl-yes"><td>alt</td><td>IMG</td><td>Required, insert image filename if src is present or default invalid image text</td></tr>

  278. <tr class="impl-yes"><td rowspan="3">bgcolor</td><td>TABLE</td><td>Superset style 'background-color'</td></tr>

  279.     <tr class="impl-yes"><td>TR</td><td>Superset style 'background-color'</td></tr>

  280.     <tr class="impl-yes"><td>TD, TH</td><td>Superset style 'background-color'</td></tr>

  281. <tr class="impl-yes"><td>border</td><td>IMG</td><td>Equivalent style <code>border:[number]px solid</code></td></tr>

  282. <tr class="impl-yes"><td>clear</td><td>BR</td><td>Near-equiv style 'clear', transform 'all' into 'both'</td></tr>

  283. <tr class="impl-no"><td>compact</td><td>DL, OL, UL</td><td>Boolean, needs custom CSS class; rarely used anyway</td></tr>

  284. <tr class="required impl-yes"><td>dir</td><td>BDO</td><td>Required, insert ltr (or configuration value) if none</td></tr>

  285. <tr class="impl-yes"><td>height</td><td>TD, TH</td><td>Near-equiv style 'height', needs px suffix if original was in pixels</td></tr>

  286. <tr class="impl-yes"><td>hspace</td><td>IMG</td><td>Near-equiv styles 'margin-top' and 'margin-bottom', needs px suffix</td></tr>

  287. <tr class="impl-yes"><td>lang</td><td>*</td><td>Copy value to xml:lang</td></tr>

  288. <tr class="impl-yes"><td rowspan="2">name</td><td>IMG</td><td>Turn into ID</td></tr>

  289.     <tr class="impl-yes"><td>A</td><td>Turn into ID</td></tr>

  290. <tr class="impl-yes"><td>noshade</td><td>HR</td><td>Boolean, style 'border-style:solid;'</td></tr>

  291. <tr class="impl-yes"><td>nowrap</td><td>TD, TH</td><td>Boolean, style 'white-space:nowrap;' (not compat with IE5)</td></tr>

  292. <tr class="impl-yes"><td>size</td><td>HR</td><td>Near-equiv 'height', needs px suffix if original was pixels</td></tr>

  293. <tr class="required impl-yes"><td>src</td><td>IMG</td><td>Required, insert blank or default img if not set</td></tr>

  294. <tr class="impl-yes"><td>start</td><td>OL</td><td>Poorly supported 'counter-reset', allowed in loose, dropped in strict</td></tr>

  295. <tr class="impl-yes"><td rowspan="3">type</td><td>LI</td><td rowspan="3">Equivalent style 'list-style-type', different allowed values though. (needs testing)</td></tr>

  296.     <tr class="impl-yes"><td>OL</td></tr>

  297.     <tr class="impl-yes"><td>UL</td></tr>

  298. <tr class="impl-yes"><td>value</td><td>LI</td><td>Poorly supported 'counter-reset', allowed in loose, dropped in strict</td></tr>

  299. <tr class="impl-yes"><td>vspace</td><td>IMG</td><td>Near-equiv styles 'margin-left' and 'margin-right', needs px suffix, see hspace</td></tr>

  300. <tr class="impl-yes"><td rowspan="2">width</td><td>HR</td><td rowspan="2">Near-equiv style 'width', needs px suffix if original was pixels</td></tr>

  301.     <tr class="impl-yes"><td>TD, TH</td></tr>

  302. </tbody>

  303. 

  304. </table>

  305. 

  306. </body></html>

  307. 

  308. <!-- vim: et sw=4 sts=4

  309. -->