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/wp-content/plugins/html-purified/lib/HTMLPurifier/Lexer/PH5P.php

https://bitbucket.org/crypticrod/sr_wp_code
PHP | 3904 lines | 1977 code | 614 blank | 1313 comment | 305 complexity | fe014dc9d00bc84352578e9183917d24 MD5 | raw file
Possible License(s): AGPL-1.0, GPL-2.0, LGPL-2.1, GPL-3.0, LGPL-2.0, AGPL-3.0 
    

  1. <?php
    2. 

  2. 

  3. /**
    4. 

  4.  * Experimental HTML5-based parser using Jeroen van der Meer's PH5P library.
    5. 

  5.  * Occupies space in the HTML5 pseudo-namespace, which may cause conflicts.
    6. 

  6.  * 
    7. 

  7.  * @note
    8. 

  8.  *    Recent changes to PHP's DOM extension have resulted in some fatal
    9. 

  9.  *    error conditions with the original version of PH5P. Pending changes,
    10. 

  10.  *    this lexer will punt to DirectLex if DOM throughs an exception.
    11. 

  11.  */
    12. 

  12. 

  13. class HTMLPurifier_Lexer_PH5P extends HTMLPurifier_Lexer_DOMLex {
    14. 

  14.     
    15. 

  15.     public function tokenizeHTML($html, $config, $context) {
    16. 

  16.         $new_html = $this->normalize($html, $config, $context);
    17. 

  17.         $new_html = $this->wrapHTML($new_html, $config, $context);
    18. 

  18.         try {
    19. 

  19.             $parser = new HTML5($new_html);
    20. 

  20.             $doc = $parser->save();
    21. 

  21.         } catch (DOMException $e) {
    22. 

  22.             // Uh oh, it failed. Punt to DirectLex.
    23. 

  23.             $lexer = new HTMLPurifier_Lexer_DirectLex();
    24. 

  24.             $context->register('PH5PError', $e); // save the error, so we can detect it
    25. 

  25.             return $lexer->tokenizeHTML($html, $config, $context); // use original HTML
    26. 

  26.         }
    27. 

  27.         $tokens = array();
    28. 

  28.         $this->tokenizeDOM(
    29. 

  29.             $doc->getElementsByTagName('html')->item(0)-> // <html>
    30. 

  30.                   getElementsByTagName('body')->item(0)-> //   <body>
    31. 

  31.                   getElementsByTagName('div')->item(0)    //     <div>
    32. 

  32.             , $tokens);
    33. 

  33.         return $tokens;
    34. 

  34.     }
    35. 

  35.     
    36. 

  36. }
    37. 

  37. 

  38. /*
    39. 

    40. 

  40. Copyright 2007 Jeroen van der Meer <http://jero.net/> 
    41. 

    42. 

  42. Permission is hereby granted, free of charge, to any person obtaining a 
    43. 

  43. copy of this software and associated documentation files (the 
    44. 

  44. "Software"), to deal in the Software without restriction, including 
    45. 

  45. without limitation the rights to use, copy, modify, merge, publish, 
    46. 

  46. distribute, sublicense, and/or sell copies of the Software, and to 
    47. 

  47. permit persons to whom the Software is furnished to do so, subject to 
    48. 

  48. the following conditions: 
    49. 

    50. 

  50. The above copyright notice and this permission notice shall be included 
    51. 

  51. in all copies or substantial portions of the Software. 
    52. 

    53. 

  53. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 
    54. 

  54. OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
    55. 

  55. MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
    56. 

  56. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 
    57. 

  57. CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
    58. 

  58. TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
    59. 

  59. SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
    60. 

    61. 

  61. */
    62. 

  62. 

  63. class HTML5 {
    64. 

  64.     private $data;
    65. 

  65.     private $char;
    66. 

  66.     private $EOF;
    67. 

  67.     private $state;
    68. 

  68.     private $tree;
    69. 

  69.     private $token;
    70. 

  70.     private $content_model;
    71. 

  71.     private $escape = false;
    72. 

  72.     private $entities = array('AElig;','AElig','AMP;','AMP','Aacute;','Aacute',
    73. 

  73.     'Acirc;','Acirc','Agrave;','Agrave','Alpha;','Aring;','Aring','Atilde;',
    74. 

  74.     'Atilde','Auml;','Auml','Beta;','COPY;','COPY','Ccedil;','Ccedil','Chi;',
    75. 

  75.     'Dagger;','Delta;','ETH;','ETH','Eacute;','Eacute','Ecirc;','Ecirc','Egrave;',
    76. 

  76.     'Egrave','Epsilon;','Eta;','Euml;','Euml','GT;','GT','Gamma;','Iacute;',
    77. 

  77.     'Iacute','Icirc;','Icirc','Igrave;','Igrave','Iota;','Iuml;','Iuml','Kappa;',
    78. 

  78.     'LT;','LT','Lambda;','Mu;','Ntilde;','Ntilde','Nu;','OElig;','Oacute;',
    79. 

  79.     'Oacute','Ocirc;','Ocirc','Ograve;','Ograve','Omega;','Omicron;','Oslash;',
    80. 

  80.     'Oslash','Otilde;','Otilde','Ouml;','Ouml','Phi;','Pi;','Prime;','Psi;',
    81. 

  81.     'QUOT;','QUOT','REG;','REG','Rho;','Scaron;','Sigma;','THORN;','THORN',
    82. 

  82.     'TRADE;','Tau;','Theta;','Uacute;','Uacute','Ucirc;','Ucirc','Ugrave;',
    83. 

  83.     'Ugrave','Upsilon;','Uuml;','Uuml','Xi;','Yacute;','Yacute','Yuml;','Zeta;',
    84. 

  84.     'aacute;','aacute','acirc;','acirc','acute;','acute','aelig;','aelig',
    85. 

  85.     'agrave;','agrave','alefsym;','alpha;','amp;','amp','and;','ang;','apos;',
    86. 

  86.     'aring;','aring','asymp;','atilde;','atilde','auml;','auml','bdquo;','beta;',
    87. 

  87.     'brvbar;','brvbar','bull;','cap;','ccedil;','ccedil','cedil;','cedil',
    88. 

  88.     'cent;','cent','chi;','circ;','clubs;','cong;','copy;','copy','crarr;',
    89. 

  89.     'cup;','curren;','curren','dArr;','dagger;','darr;','deg;','deg','delta;',
    90. 

  90.     'diams;','divide;','divide','eacute;','eacute','ecirc;','ecirc','egrave;',
    91. 

  91.     'egrave','empty;','emsp;','ensp;','epsilon;','equiv;','eta;','eth;','eth',
    92. 

  92.     'euml;','euml','euro;','exist;','fnof;','forall;','frac12;','frac12',
    93. 

  93.     'frac14;','frac14','frac34;','frac34','frasl;','gamma;','ge;','gt;','gt',
    94. 

  94.     'hArr;','harr;','hearts;','hellip;','iacute;','iacute','icirc;','icirc',
    95. 

  95.     'iexcl;','iexcl','igrave;','igrave','image;','infin;','int;','iota;',
    96. 

  96.     'iquest;','iquest','isin;','iuml;','iuml','kappa;','lArr;','lambda;','lang;',
    97. 

  97.     'laquo;','laquo','larr;','lceil;','ldquo;','le;','lfloor;','lowast;','loz;',
    98. 

  98.     'lrm;','lsaquo;','lsquo;','lt;','lt','macr;','macr','mdash;','micro;','micro',
    99. 

  99.     'middot;','middot','minus;','mu;','nabla;','nbsp;','nbsp','ndash;','ne;',
    100. 

  100.     'ni;','not;','not','notin;','nsub;','ntilde;','ntilde','nu;','oacute;',
    101. 

  101.     'oacute','ocirc;','ocirc','oelig;','ograve;','ograve','oline;','omega;',
    102. 

  102.     'omicron;','oplus;','or;','ordf;','ordf','ordm;','ordm','oslash;','oslash',
    103. 

  103.     'otilde;','otilde','otimes;','ouml;','ouml','para;','para','part;','permil;',
    104. 

  104.     'perp;','phi;','pi;','piv;','plusmn;','plusmn','pound;','pound','prime;',
    105. 

  105.     'prod;','prop;','psi;','quot;','quot','rArr;','radic;','rang;','raquo;',
    106. 

  106.     'raquo','rarr;','rceil;','rdquo;','real;','reg;','reg','rfloor;','rho;',
    107. 

  107.     'rlm;','rsaquo;','rsquo;','sbquo;','scaron;','sdot;','sect;','sect','shy;',
    108. 

  108.     'shy','sigma;','sigmaf;','sim;','spades;','sub;','sube;','sum;','sup1;',
    109. 

  109.     'sup1','sup2;','sup2','sup3;','sup3','sup;','supe;','szlig;','szlig','tau;',
    110. 

  110.     'there4;','theta;','thetasym;','thinsp;','thorn;','thorn','tilde;','times;',
    111. 

  111.     'times','trade;','uArr;','uacute;','uacute','uarr;','ucirc;','ucirc',
    112. 

  112.     'ugrave;','ugrave','uml;','uml','upsih;','upsilon;','uuml;','uuml','weierp;',
    113. 

  113.     'xi;','yacute;','yacute','yen;','yen','yuml;','yuml','zeta;','zwj;','zwnj;');
    114. 

  114. 

  115.     const PCDATA    = 0;
    116. 

  116.     const RCDATA    = 1;
    117. 

  117.     const CDATA     = 2;
    118. 

  118.     const PLAINTEXT = 3;
    119. 

  119. 

  120.     const DOCTYPE  = 0;
    121. 

  121.     const STARTTAG = 1;
    122. 

  122.     const ENDTAG   = 2;
    123. 

  123.     const COMMENT  = 3;
    124. 

  124.     const CHARACTR = 4;
    125. 

  125.     const EOF      = 5;
    126. 

  126. 

  127.     public function __construct($data) {
    128. 

  128. 

  129.         $this->data = $data;
    130. 

  130.         $this->char = -1;
    131. 

  131.         $this->EOF  = strlen($data);
    132. 

  132.         $this->tree = new HTML5TreeConstructer;
    133. 

  133.         $this->content_model = self::PCDATA;
    134. 

  134. 

  135.         $this->state = 'data';
    136. 

  136. 

  137.         while($this->state !== null) {
    138. 

  138.             $this->{$this->state.'State'}();
    139. 

  139.         }
    140. 

  140.     }
    141. 

  141. 

  142.     public function save() {
    143. 

  143.         return $this->tree->save();
    144. 

  144.     }
    145. 

  145. 

  146.     private function char() {
    147. 

  147.         return ($this->char < $this->EOF)
    148. 

  148.             ? $this->data[$this->char]
    149. 

  149.             : false;
    150. 

  150.     }
    151. 

  151. 

  152.     private function character($s, $l = 0) {
    153. 

  153.         if($s + $l < $this->EOF) {
    154. 

  154.             if($l === 0) {
    155. 

  155.                 return $this->data[$s];
    156. 

  156.             } else {
    157. 

  157.                 return substr($this->data, $s, $l);
    158. 

  158.             }
    159. 

  159.         }
    160. 

  160.     }
    161. 

  161. 

  162.     private function characters($char_class, $start) {
    163. 

  163.         return preg_replace('#^(['.$char_class.']+).*#s', '\\1', substr($this->data, $start));
    164. 

  164.     }
    165. 

  165. 

  166.     private function dataState() {
    167. 

  167.         // Consume the next input character
    168. 

  168.         $this->char++;
    169. 

  169.         $char = $this->char();
    170. 

  170. 

  171.         if($char === '&' && ($this->content_model === self::PCDATA || $this->content_model === self::RCDATA)) {
    172. 

  172.             /* U+0026 AMPERSAND (&)
    173. 

  173.             When the content model flag is set to one of the PCDATA or RCDATA
    174. 

  174.             states: switch to the entity data state. Otherwise: treat it as per
    175. 

  175.             the "anything else"    entry below. */
    176. 

  176.             $this->state = 'entityData';
    177. 

  177. 

  178.         } elseif($char === '-') {
    179. 

  179.             /* If the content model flag is set to either the RCDATA state or
    180. 

  180.             the CDATA state, and the escape flag is false, and there are at
    181. 

  181.             least three characters before this one in the input stream, and the
    182. 

  182.             last four characters in the input stream, including this one, are
    183. 

  183.             U+003C LESS-THAN SIGN, U+0021 EXCLAMATION MARK, U+002D HYPHEN-MINUS,
    184. 

  184.             and U+002D HYPHEN-MINUS ("<!--"), then set the escape flag to true. */
    185. 

  185.             if(($this->content_model === self::RCDATA || $this->content_model ===
    186. 

  186.             self::CDATA) && $this->escape === false &&
    187. 

  187.             $this->char >= 3 && $this->character($this->char - 4, 4) === '<!--') {
    188. 

  188.                 $this->escape = true;
    189. 

  189.             }
    190. 

  190. 

  191.             /* In any case, emit the input character as a character token. Stay
    192. 

  192.             in the data state. */
    193. 

  193.             $this->emitToken(array(
    194. 

  194.                 'type' => self::CHARACTR,
    195. 

  195.                 'data' => $char
    196. 

  196.             ));
    197. 

  197. 

  198.         /* U+003C LESS-THAN SIGN (<) */
    199. 

  199.         } elseif($char === '<' && ($this->content_model === self::PCDATA ||
    200. 

  200.         (($this->content_model === self::RCDATA ||
    201. 

  201.         $this->content_model === self::CDATA) && $this->escape === false))) {
    202. 

  202.             /* When the content model flag is set to the PCDATA state: switch
    203. 

  203.             to the tag open state.
    204. 

    205. 

  205.             When the content model flag is set to either the RCDATA state or
    206. 

  206.             the CDATA state and the escape flag is false: switch to the tag
    207. 

  207.             open state.
    208. 

    209. 

  209.             Otherwise: treat it as per the "anything else" entry below. */
    210. 

  210.             $this->state = 'tagOpen';
    211. 

  211. 

  212.         /* U+003E GREATER-THAN SIGN (>) */
    213. 

  213.         } elseif($char === '>') {
    214. 

  214.             /* If the content model flag is set to either the RCDATA state or
    215. 

  215.             the CDATA state, and the escape flag is true, and the last three
    216. 

  216.             characters in the input stream including this one are U+002D
    217. 

  217.             HYPHEN-MINUS, U+002D HYPHEN-MINUS, U+003E GREATER-THAN SIGN ("-->"),
    218. 

  218.             set the escape flag to false. */
    219. 

  219.             if(($this->content_model === self::RCDATA ||
    220. 

  220.             $this->content_model === self::CDATA) && $this->escape === true &&
    221. 

  221.             $this->character($this->char, 3) === '-->') {
    222. 

  222.                 $this->escape = false;
    223. 

  223.             }
    224. 

  224. 

  225.             /* In any case, emit the input character as a character token.
    226. 

  226.             Stay in the data state. */
    227. 

  227.             $this->emitToken(array(
    228. 

  228.                 'type' => self::CHARACTR,
    229. 

  229.                 'data' => $char
    230. 

  230.             ));
    231. 

  231. 

  232.         } elseif($this->char === $this->EOF) {
    233. 

  233.             /* EOF
    234. 

  234.             Emit an end-of-file token. */
    235. 

  235.             $this->EOF();
    236. 

  236. 

  237.         } elseif($this->content_model === self::PLAINTEXT) {
    238. 

  238.             /* When the content model flag is set to the PLAINTEXT state
    239. 

  239.             THIS DIFFERS GREATLY FROM THE SPEC: Get the remaining characters of
    240. 

  240.             the text and emit it as a character token. */
    241. 

  241.             $this->emitToken(array(
    242. 

  242.                 'type' => self::CHARACTR,
    243. 

  243.                 'data' => substr($this->data, $this->char)
    244. 

  244.             ));
    245. 

  245. 

  246.             $this->EOF();
    247. 

  247. 

  248.         } else {
    249. 

  249.             /* Anything else
    250. 

  250.             THIS DIFFERS GREATLY FROM THE SPEC: Get as many character that
    251. 

  251.             otherwise would also be treated as a character token and emit it
    252. 

  252.             as a single character token. Stay in the data state. */
    253. 

  253.             $len  = strcspn($this->data, '<&', $this->char);
    254. 

  254.             $char = substr($this->data, $this->char, $len);
    255. 

  255.             $this->char += $len - 1;
    256. 

  256. 

  257.             $this->emitToken(array(
    258. 

  258.                 'type' => self::CHARACTR,
    259. 

  259.                 'data' => $char
    260. 

  260.             ));
    261. 

  261. 

  262.             $this->state = 'data';
    263. 

  263.         }
    264. 

  264.     }
    265. 

  265. 

  266.     private function entityDataState() {
    267. 

  267.         // Attempt to consume an entity.
    268. 

  268.         $entity = $this->entity();
    269. 

  269. 

  270.         // If nothing is returned, emit a U+0026 AMPERSAND character token.
    271. 

  271.         // Otherwise, emit the character token that was returned.
    272. 

  272.         $char = (!$entity) ? '&' : $entity;
    273. 

  273.         $this->emitToken(array(
    274. 

  274.             'type' => self::CHARACTR,
    275. 

  275.             'data' => $char
    276. 

  276.         ));
    277. 

  277. 

  278.         // Finally, switch to the data state.
    279. 

  279.         $this->state = 'data';
    280. 

  280.     }
    281. 

  281. 

  282.     private function tagOpenState() {
    283. 

  283.         switch($this->content_model) {
    284. 

  284.             case self::RCDATA:
    285. 

  285.             case self::CDATA:
    286. 

  286.                 /* If the next input character is a U+002F SOLIDUS (/) character,
    287. 

  287.                 consume it and switch to the close tag open state. If the next
    288. 

  288.                 input character is not a U+002F SOLIDUS (/) character, emit a
    289. 

  289.                 U+003C LESS-THAN SIGN character token and switch to the data
    290. 

  290.                 state to process the next input character. */
    291. 

  291.                 if($this->character($this->char + 1) === '/') {
    292. 

  292.                     $this->char++;
    293. 

  293.                     $this->state = 'closeTagOpen';
    294. 

  294. 

  295.                 } else {
    296. 

  296.                     $this->emitToken(array(
    297. 

  297.                         'type' => self::CHARACTR,
    298. 

  298.                         'data' => '<'
    299. 

  299.                     ));
    300. 

  300. 

  301.                     $this->state = 'data';
    302. 

  302.                 }
    303. 

  303.             break;
    304. 

  304. 

  305.             case self::PCDATA:
    306. 

  306.                 // If the content model flag is set to the PCDATA state
    307. 

  307.                 // Consume the next input character:
    308. 

  308.                 $this->char++;
    309. 

  309.                 $char = $this->char();
    310. 

  310. 

  311.                 if($char === '!') {
    312. 

  312.                     /* U+0021 EXCLAMATION MARK (!)
    313. 

  313.                     Switch to the markup declaration open state. */
    314. 

  314.                     $this->state = 'markupDeclarationOpen';
    315. 

  315. 

  316.                 } elseif($char === '/') {
    317. 

  317.                     /* U+002F SOLIDUS (/)
    318. 

  318.                     Switch to the close tag open state. */
    319. 

  319.                     $this->state = 'closeTagOpen';
    320. 

  320. 

  321.                 } elseif(preg_match('/^[A-Za-z]$/', $char)) {
    322. 

  322.                     /* U+0041 LATIN LETTER A through to U+005A LATIN LETTER Z
    323. 

  323.                     Create a new start tag token, set its tag name to the lowercase
    324. 

  324.                     version of the input character (add 0x0020 to the character's code
    325. 

  325.                     point), then switch to the tag name state. (Don't emit the token
    326. 

  326.                     yet; further details will be filled in before it is emitted.) */
    327. 

  327.                     $this->token = array(
    328. 

  328.                         'name'  => strtolower($char),
    329. 

  329.                         'type'  => self::STARTTAG,
    330. 

  330.                         'attr'  => array()
    331. 

  331.                     );
    332. 

  332. 

  333.                     $this->state = 'tagName';
    334. 

  334. 

  335.                 } elseif($char === '>') {
    336. 

  336.                     /* U+003E GREATER-THAN SIGN (>)
    337. 

  337.                     Parse error. Emit a U+003C LESS-THAN SIGN character token and a
    338. 

  338.                     U+003E GREATER-THAN SIGN character token. Switch to the data state. */
    339. 

  339.                     $this->emitToken(array(
    340. 

  340.                         'type' => self::CHARACTR,
    341. 

  341.                         'data' => '<>'
    342. 

  342.                     ));
    343. 

  343. 

  344.                     $this->state = 'data';
    345. 

  345. 

  346.                 } elseif($char === '?') {
    347. 

  347.                     /* U+003F QUESTION MARK (?)
    348. 

  348.                     Parse error. Switch to the bogus comment state. */
    349. 

  349.                     $this->state = 'bogusComment';
    350. 

  350. 

  351.                 } else {
    352. 

  352.                     /* Anything else
    353. 

  353.                     Parse error. Emit a U+003C LESS-THAN SIGN character token and
    354. 

  354.                     reconsume the current input character in the data state. */
    355. 

  355.                     $this->emitToken(array(
    356. 

  356.                         'type' => self::CHARACTR,
    357. 

  357.                         'data' => '<'
    358. 

  358.                     ));
    359. 

  359. 

  360.                     $this->char--;
    361. 

  361.                     $this->state = 'data';
    362. 

  362.                 }
    363. 

  363.             break;
    364. 

  364.         }
    365. 

  365.     }
    366. 

  366. 

  367.     private function closeTagOpenState() {
    368. 

  368.         $next_node = strtolower($this->characters('A-Za-z', $this->char + 1));
    369. 

  369.         $the_same = count($this->tree->stack) > 0 && $next_node === end($this->tree->stack)->nodeName;
    370. 

  370. 

  371.         if(($this->content_model === self::RCDATA || $this->content_model === self::CDATA) &&
    372. 

  372.         (!$the_same || ($the_same && (!preg_match('/[\t\n\x0b\x0c >\/]/',
    373. 

  373.         $this->character($this->char + 1 + strlen($next_node))) || $this->EOF === $this->char)))) {
    374. 

  374.             /* If the content model flag is set to the RCDATA or CDATA states then
    375. 

  375.             examine the next few characters. If they do not match the tag name of
    376. 

  376.             the last start tag token emitted (case insensitively), or if they do but
    377. 

  377.             they are not immediately followed by one of the following characters:
    378. 

  378.                 * U+0009 CHARACTER TABULATION
    379. 

  379.                 * U+000A LINE FEED (LF)
    380. 

  380.                 * U+000B LINE TABULATION
    381. 

  381.                 * U+000C FORM FEED (FF)
    382. 

  382.                 * U+0020 SPACE
    383. 

  383.                 * U+003E GREATER-THAN SIGN (>)
    384. 

  384.                 * U+002F SOLIDUS (/)
    385. 

  385.                 * EOF
    386. 

  386.             ...then there is a parse error. Emit a U+003C LESS-THAN SIGN character
    387. 

  387.             token, a U+002F SOLIDUS character token, and switch to the data state
    388. 

  388.             to process the next input character. */
    389. 

  389.             $this->emitToken(array(
    390. 

  390.                 'type' => self::CHARACTR,
    391. 

  391.                 'data' => '</'
    392. 

  392.             ));
    393. 

  393. 

  394.             $this->state = 'data';
    395. 

  395. 

  396.         } else {
    397. 

  397.             /* Otherwise, if the content model flag is set to the PCDATA state,
    398. 

  398.             or if the next few characters do match that tag name, consume the
    399. 

  399.             next input character: */
    400. 

  400.             $this->char++;
    401. 

  401.             $char = $this->char();
    402. 

  402. 

  403.             if(preg_match('/^[A-Za-z]$/', $char)) {
    404. 

  404.                 /* U+0041 LATIN LETTER A through to U+005A LATIN LETTER Z
    405. 

  405.                 Create a new end tag token, set its tag name to the lowercase version
    406. 

  406.                 of the input character (add 0x0020 to the character's code point), then
    407. 

  407.                 switch to the tag name state. (Don't emit the token yet; further details
    408. 

  408.                 will be filled in before it is emitted.) */
    409. 

  409.                 $this->token = array(
    410. 

  410.                     'name'  => strtolower($char),
    411. 

  411.                     'type'  => self::ENDTAG
    412. 

  412.                 );
    413. 

  413. 

  414.                 $this->state = 'tagName';
    415. 

  415. 

  416.             } elseif($char === '>') {
    417. 

  417.                 /* U+003E GREATER-THAN SIGN (>)
    418. 

  418.                 Parse error. Switch to the data state. */
    419. 

  419.                 $this->state = 'data';
    420. 

  420. 

  421.             } elseif($this->char === $this->EOF) {
    422. 

  422.                 /* EOF
    423. 

  423.                 Parse error. Emit a U+003C LESS-THAN SIGN character token and a U+002F
    424. 

  424.                 SOLIDUS character token. Reconsume the EOF character in the data state. */
    425. 

  425.                 $this->emitToken(array(
    426. 

  426.                     'type' => self::CHARACTR,
    427. 

  427.                     'data' => '</'
    428. 

  428.                 ));
    429. 

  429. 

  430.                 $this->char--;
    431. 

  431.                 $this->state = 'data';
    432. 

  432. 

  433.             } else {
    434. 

  434.                 /* Parse error. Switch to the bogus comment state. */
    435. 

  435.                 $this->state = 'bogusComment';
    436. 

  436.             }
    437. 

  437.         }
    438. 

  438.     }
    439. 

  439. 

  440.     private function tagNameState() {
    441. 

  441.         // Consume the next input character:
    442. 

  442.         $this->char++;
    443. 

  443.         $char = $this->character($this->char);
    444. 

  444. 

  445.         if(preg_match('/^[\t\n\x0b\x0c ]$/', $char)) {
    446. 

  446.             /* U+0009 CHARACTER TABULATION
    447. 

  447.             U+000A LINE FEED (LF)
    448. 

  448.             U+000B LINE TABULATION
    449. 

  449.             U+000C FORM FEED (FF)
    450. 

  450.             U+0020 SPACE
    451. 

  451.             Switch to the before attribute name state. */
    452. 

  452.             $this->state = 'beforeAttributeName';
    453. 

  453. 

  454.         } elseif($char === '>') {
    455. 

  455.             /* U+003E GREATER-THAN SIGN (>)
    456. 

  456.             Emit the current tag token. Switch to the data state. */
    457. 

  457.             $this->emitToken($this->token);
    458. 

  458.             $this->state = 'data';
    459. 

  459. 

  460.         } elseif($this->char === $this->EOF) {
    461. 

  461.             /* EOF
    462. 

  462.             Parse error. Emit the current tag token. Reconsume the EOF
    463. 

  463.             character in the data state. */
    464. 

  464.             $this->emitToken($this->token);
    465. 

  465. 

  466.             $this->char--;
    467. 

  467.             $this->state = 'data';
    468. 

  468. 

  469.         } elseif($char === '/') {
    470. 

  470.             /* U+002F SOLIDUS (/)
    471. 

  471.             Parse error unless this is a permitted slash. Switch to the before
    472. 

  472.             attribute name state. */
    473. 

  473.             $this->state = 'beforeAttributeName';
    474. 

  474. 

  475.         } else {
    476. 

  476.             /* Anything else
    477. 

  477.             Append the current input character to the current tag token's tag name.
    478. 

  478.             Stay in the tag name state. */
    479. 

  479.             $this->token['name'] .= strtolower($char);
    480. 

  480.             $this->state = 'tagName';
    481. 

  481.         }
    482. 

  482.     }
    483. 

  483. 

  484.     private function beforeAttributeNameState() {
    485. 

  485.         // Consume the next input character:
    486. 

  486.         $this->char++;
    487. 

  487.         $char = $this->character($this->char);
    488. 

  488. 

  489.         if(preg_match('/^[\t\n\x0b\x0c ]$/', $char)) {
    490. 

  490.             /* U+0009 CHARACTER TABULATION
    491. 

  491.             U+000A LINE FEED (LF)
    492. 

  492.             U+000B LINE TABULATION
    493. 

  493.             U+000C FORM FEED (FF)
    494. 

  494.             U+0020 SPACE
    495. 

  495.             Stay in the before attribute name state. */
    496. 

  496.             $this->state = 'beforeAttributeName';
    497. 

  497. 

  498.         } elseif($char === '>') {
    499. 

  499.             /* U+003E GREATER-THAN SIGN (>)
    500. 

  500.             Emit the current tag token. Switch to the data state. */
    501. 

  501.             $this->emitToken($this->token);
    502. 

  502.             $this->state = 'data';
    503. 

  503. 

  504.         } elseif($char === '/') {
    505. 

  505.             /* U+002F SOLIDUS (/)
    506. 

  506.             Parse error unless this is a permitted slash. Stay in the before
    507. 

  507.             attribute name state. */
    508. 

  508.             $this->state = 'beforeAttributeName';
    509. 

  509. 

  510.         } elseif($this->char === $this->EOF) {
    511. 

  511.             /* EOF
    512. 

  512.             Parse error. Emit the current tag token. Reconsume the EOF
    513. 

  513.             character in the data state. */
    514. 

  514.             $this->emitToken($this->token);
    515. 

  515. 

  516.             $this->char--;
    517. 

  517.             $this->state = 'data';
    518. 

  518. 

  519.         } else {
    520. 

  520.             /* Anything else
    521. 

  521.             Start a new attribute in the current tag token. Set that attribute's
    522. 

  522.             name to the current input character, and its value to the empty string.
    523. 

  523.             Switch to the attribute name state. */
    524. 

  524.             $this->token['attr'][] = array(
    525. 

  525.                 'name'  => strtolower($char),
    526. 

  526.                 'value' => null
    527. 

  527.             );
    528. 

  528. 

  529.             $this->state = 'attributeName';
    530. 

  530.         }
    531. 

  531.     }
    532. 

  532. 

  533.     private function attributeNameState() {
    534. 

  534.         // Consume the next input character:
    535. 

  535.         $this->char++;
    536. 

  536.         $char = $this->character($this->char);
    537. 

  537. 

  538.         if(preg_match('/^[\t\n\x0b\x0c ]$/', $char)) {
    539. 

  539.             /* U+0009 CHARACTER TABULATION
    540. 

  540.             U+000A LINE FEED (LF)
    541. 

  541.             U+000B LINE TABULATION
    542. 

  542.             U+000C FORM FEED (FF)
    543. 

  543.             U+0020 SPACE
    544. 

  544.             Stay in the before attribute name state. */
    545. 

  545.             $this->state = 'afterAttributeName';
    546. 

  546. 

  547.         } elseif($char === '=') {
    548. 

  548.             /* U+003D EQUALS SIGN (=)
    549. 

  549.             Switch to the before attribute value state. */
    550. 

  550.             $this->state = 'beforeAttributeValue';
    551. 

  551. 

  552.         } elseif($char === '>') {
    553. 

  553.             /* U+003E GREATER-THAN SIGN (>)
    554. 

  554.             Emit the current tag token. Switch to the data state. */
    555. 

  555.             $this->emitToken($this->token);
    556. 

  556.             $this->state = 'data';
    557. 

  557. 

  558.         } elseif($char === '/' && $this->character($this->char + 1) !== '>') {
    559. 

  559.             /* U+002F SOLIDUS (/)
    560. 

  560.             Parse error unless this is a permitted slash. Switch to the before
    561. 

  561.             attribute name state. */
    562. 

  562.             $this->state = 'beforeAttributeName';
    563. 

  563. 

  564.         } elseif($this->char === $this->EOF) {
    565. 

  565.             /* EOF
    566. 

  566.             Parse error. Emit the current tag token. Reconsume the EOF
    567. 

  567.             character in the data state. */
    568. 

  568.             $this->emitToken($this->token);
    569. 

  569. 

  570.             $this->char--;
    571. 

  571.             $this->state = 'data';
    572. 

  572. 

  573.         } else {
    574. 

  574.             /* Anything else
    575. 

  575.             Append the current input character to the current attribute's name.
    576. 

  576.             Stay in the attribute name state. */
    577. 

  577.             $last = count($this->token['attr']) - 1;
    578. 

  578.             $this->token['attr'][$last]['name'] .= strtolower($char);
    579. 

  579. 

  580.             $this->state = 'attributeName';
    581. 

  581.         }
    582. 

  582.     }
    583. 

  583. 

  584.     private function afterAttributeNameState() {
    585. 

  585.         // Consume the next input character:
    586. 

  586.         $this->char++;
    587. 

  587.         $char = $this->character($this->char);
    588. 

  588. 

  589.         if(preg_match('/^[\t\n\x0b\x0c ]$/', $char)) {
    590. 

  590.             /* U+0009 CHARACTER TABULATION
    591. 

  591.             U+000A LINE FEED (LF)
    592. 

  592.             U+000B LINE TABULATION
    593. 

  593.             U+000C FORM FEED (FF)
    594. 

  594.             U+0020 SPACE
    595. 

  595.             Stay in the after attribute name state. */
    596. 

  596.             $this->state = 'afterAttributeName';
    597. 

  597. 

  598.         } elseif($char === '=') {
    599. 

  599.             /* U+003D EQUALS SIGN (=)
    600. 

  600.             Switch to the before attribute value state. */
    601. 

  601.             $this->state = 'beforeAttributeValue';
    602. 

  602. 

  603.         } elseif($char === '>') {
    604. 

  604.             /* U+003E GREATER-THAN SIGN (>)
    605. 

  605.             Emit the current tag token. Switch to the data state. */
    606. 

  606.             $this->emitToken($this->token);
    607. 

  607.             $this->state = 'data';
    608. 

  608. 

  609.         } elseif($char === '/' && $this->character($this->char + 1) !== '>') {
    610. 

  610.             /* U+002F SOLIDUS (/)
    611. 

  611.             Parse error unless this is a permitted slash. Switch to the
    612. 

  612.             before attribute name state. */
    613. 

  613.             $this->state = 'beforeAttributeName';
    614. 

  614. 

  615.         } elseif($this->char === $this->EOF) {
    616. 

  616.             /* EOF
    617. 

  617.             Parse error. Emit the current tag token. Reconsume the EOF
    618. 

  618.             character in the data state. */
    619. 

  619.             $this->emitToken($this->token);
    620. 

  620. 

  621.             $this->char--;
    622. 

  622.             $this->state = 'data';
    623. 

  623. 

  624.         } else {
    625. 

  625.             /* Anything else
    626. 

  626.             Start a new attribute in the current tag token. Set that attribute's
    627. 

  627.             name to the current input character, and its value to the empty string.
    628. 

  628.             Switch to the attribute name state. */
    629. 

  629.             $this->token['attr'][] = array(
    630. 

  630.                 'name'  => strtolower($char),
    631. 

  631.                 'value' => null
    632. 

  632.             );
    633. 

  633. 

  634.             $this->state = 'attributeName';
    635. 

  635.         }
    636. 

  636.     }
    637. 

  637. 

  638.     private function beforeAttributeValueState() {
    639. 

  639.         // Consume the next input character:
    640. 

  640.         $this->char++;
    641. 

  641.         $char = $this->character($this->char);
    642. 

  642. 

  643.         if(preg_match('/^[\t\n\x0b\x0c ]$/', $char)) {
    644. 

  644.             /* U+0009 CHARACTER TABULATION
    645. 

  645.             U+000A LINE FEED (LF)
    646. 

  646.             U+000B LINE TABULATION
    647. 

  647.             U+000C FORM FEED (FF)
    648. 

  648.             U+0020 SPACE
    649. 

  649.             Stay in the before attribute value state. */
    650. 

  650.             $this->state = 'beforeAttributeValue';
    651. 

  651. 

  652.         } elseif($char === '"') {
    653. 

  653.             /* U+0022 QUOTATION MARK (")
    654. 

  654.             Switch to the attribute value (double-quoted) state. */
    655. 

  655.             $this->state = 'attributeValueDoubleQuoted';
    656. 

  656. 

  657.         } elseif($char === '&') {
    658. 

  658.             /* U+0026 AMPERSAND (&)
    659. 

  659.             Switch to the attribute value (unquoted) state and reconsume
    660. 

  660.             this input character. */
    661. 

  661.             $this->char--;
    662. 

  662.             $this->state = 'attributeValueUnquoted';
    663. 

  663. 

  664.         } elseif($char === '\'') {
    665. 

  665.             /* U+0027 APOSTROPHE (')
    666. 

  666.             Switch to the attribute value (single-quoted) state. */
    667. 

  667.             $this->state = 'attributeValueSingleQuoted';
    668. 

  668. 

  669.         } elseif($char === '>') {
    670. 

  670.             /* U+003E GREATER-THAN SIGN (>)
    671. 

  671.             Emit the current tag token. Switch to the data state. */
    672. 

  672.             $this->emitToken($this->token);
    673. 

  673.             $this->state = 'data';
    674. 

  674. 

  675.         } else {
    676. 

  676.             /* Anything else
    677. 

  677.             Append the current input character to the current attribute's value.
    678. 

  678.             Switch to the attribute value (unquoted) state. */
    679. 

  679.             $last = count($this->token['attr']) - 1;
    680. 

  680.             $this->token['attr'][$last]['value'] .= $char;
    681. 

  681. 

  682.             $this->state = 'attributeValueUnquoted';
    683. 

  683.         }
    684. 

  684.     }
    685. 

  685. 

  686.     private function attributeValueDoubleQuotedState() {
    687. 

  687.         // Consume the next input character:
    688. 

  688.         $this->char++;
    689. 

  689.         $char = $this->character($this->char);
    690. 

  690. 

  691.         if($char === '"') {
    692. 

  692.             /* U+0022 QUOTATION MARK (")
    693. 

  693.             Switch to the before attribute name state. */
    694. 

  694.             $this->state = 'beforeAttributeName';
    695. 

  695. 

  696.         } elseif($char === '&') {
    697. 

  697.             /* U+0026 AMPERSAND (&)
    698. 

  698.             Switch to the entity in attribute value state. */
    699. 

  699.             $this->entityInAttributeValueState('double');
    700. 

  700. 

  701.         } elseif($this->char === $this->EOF) {
    702. 

  702.             /* EOF
    703. 

  703.             Parse error. Emit the current tag token. Reconsume the character
    704. 

  704.             in the data state. */
    705. 

  705.             $this->emitToken($this->token);
    706. 

  706. 

  707.             $this->char--;
    708. 

  708.             $this->state = 'data';
    709. 

  709. 

  710.         } else {
    711. 

  711.             /* Anything else
    712. 

  712.             Append the current input character to the current attribute's value.
    713. 

  713.             Stay in the attribute value (double-quoted) state. */
    714. 

  714.             $last = count($this->token['attr']) - 1;
    715. 

  715.             $this->token['attr'][$last]['value'] .= $char;
    716. 

  716. 

  717.             $this->state = 'attributeValueDoubleQuoted';
    718. 

  718.         }
    719. 

  719.     }
    720. 

  720. 

  721.     private function attributeValueSingleQuotedState() {
    722. 

  722.         // Consume the next input character:
    723. 

  723.         $this->char++;
    724. 

  724.         $char = $this->character($this->char);
    725. 

  725. 

  726.         if($char === '\'') {
    727. 

  727.             /* U+0022 QUOTATION MARK (')
    728. 

  728.             Switch to the before attribute name state. */
    729. 

  729.             $this->state = 'beforeAttributeName';
    730. 

  730. 

  731.         } elseif($char === '&') {
    732. 

  732.             /* U+0026 AMPERSAND (&)
    733. 

  733.             Switch to the entity in attribute value state. */
    734. 

  734.             $this->entityInAttributeValueState('single');
    735. 

  735. 

  736.         } elseif($this->char === $this->EOF) {
    737. 

  737.             /* EOF
    738. 

  738.             Parse error. Emit the current tag token. Reconsume the character
    739. 

  739.             in the data state. */
    740. 

  740.             $this->emitToken($this->token);
    741. 

  741. 

  742.             $this->char--;
    743. 

  743.             $this->state = 'data';
    744. 

  744. 

  745.         } else {
    746. 

  746.             /* Anything else
    747. 

  747.             Append the current input character to the current attribute's value.
    748. 

  748.             Stay in the attribute value (single-quoted) state. */
    749. 

  749.             $last = count($this->token['attr']) - 1;
    750. 

  750.             $this->token['attr'][$last]['value'] .= $char;
    751. 

  751. 

  752.             $this->state = 'attributeValueSingleQuoted';
    753. 

  753.         }
    754. 

  754.     }
    755. 

  755. 

  756.     private function attributeValueUnquotedState() {
    757. 

  757.         // Consume the next input character:
    758. 

  758.         $this->char++;
    759. 

  759.         $char = $this->character($this->char);
    760. 

  760. 

  761.         if(preg_match('/^[\t\n\x0b\x0c ]$/', $char)) {
    762. 

  762.             /* U+0009 CHARACTER TABULATION
    763. 

  763.             U+000A LINE FEED (LF)
    764. 

  764.             U+000B LINE TABULATION
    765. 

  765.             U+000C FORM FEED (FF)
    766. 

  766.             U+0020 SPACE
    767. 

  767.             Switch to the before attribute name state. */
    768. 

  768.             $this->state = 'beforeAttributeName';
    769. 

  769. 

  770.         } elseif($char === '&') {
    771. 

  771.             /* U+0026 AMPERSAND (&)
    772. 

  772.             Switch to the entity in attribute value state. */
    773. 

  773.             $this->entityInAttributeValueState();
    774. 

  774. 

  775.         } elseif($char === '>') {
    776. 

  776.             /* U+003E GREATER-THAN SIGN (>)
    777. 

  777.             Emit the current tag token. Switch to the data state. */
    778. 

  778.             $this->emitToken($this->token);
    779. 

  779.             $this->state = 'data';
    780. 

  780. 

  781.         } else {
    782. 

  782.             /* Anything else
    783. 

  783.             Append the current input character to the current attribute's value.
    784. 

  784.             Stay in the attribute value (unquoted) state. */
    785. 

  785.             $last = count($this->token['attr']) - 1;
    786. 

  786.             $this->token['attr'][$last]['value'] .= $char;
    787. 

  787. 

  788.             $this->state = 'attributeValueUnquoted';
    789. 

  789.         }
    790. 

  790.     }
    791. 

  791. 

  792.     private function entityInAttributeValueState() {
    793. 

  793.         // Attempt to consume an entity.
    794. 

  794.         $entity = $this->entity();
    795. 

  795. 

  796.         // If nothing is returned, append a U+0026 AMPERSAND character to the
    797. 

  797.         // current attribute's value. Otherwise, emit the character token that
    798. 

  798.         // was returned.
    799. 

  799.         $char = (!$entity)
    800. 

  800.             ? '&'
    801. 

  801.             : $entity;
    802. 

  802. 

  803.         $last = count($this->token['attr']) - 1;
    804. 

  804.         $this->token['attr'][$last]['value'] .= $char;
    805. 

  805.     }
    806. 

  806. 

  807.     private function bogusCommentState() {
    808. 

  808.         /* Consume every character up to the first U+003E GREATER-THAN SIGN
    809. 

  809.         character (>) or the end of the file (EOF), whichever comes first. Emit
    810. 

  810.         a comment token whose data is the concatenation of all the characters
    811. 

  811.         starting from and including the character that caused the state machine
    812. 

  812.         to switch into the bogus comment state, up to and including the last
    813. 

  813.         consumed character before the U+003E character, if any, or up to the
    814. 

  814.         end of the file otherwise. (If the comment was started by the end of
    815. 

  815.         the file (EOF), the token is empty.) */
    816. 

  816.         $data = $this->characters('^>', $this->char);
    817. 

  817.         $this->emitToken(array(
    818. 

  818.             'data' => $data,
    819. 

  819.             'type' => self::COMMENT
    820. 

  820.         ));
    821. 

  821. 

  822.         $this->char += strlen($data);
    823. 

  823. 

  824.         /* Switch to the data state. */
    825. 

  825.         $this->state = 'data';
    826. 

  826. 

  827.         /* If the end of the file was reached, reconsume the EOF character. */
    828. 

  828.         if($this->char === $this->EOF) {
    829. 

  829.             $this->char = $this->EOF - 1;
    830. 

  830.         }
    831. 

  831.     }
    832. 

  832. 

  833.     private function markupDeclarationOpenState() {
    834. 

  834.         /* If the next two characters are both U+002D HYPHEN-MINUS (-)
    835. 

  835.         characters, consume those two characters, create a comment token whose
    836. 

  836.         data is the empty string, and switch to the comment state. */
    837. 

  837.         if($this->character($this->char + 1, 2) === '--') {
    838. 

  838.             $this->char += 2;
    839. 

  839.             $this->state = 'comment';
    840. 

  840.             $this->token = array(
    841. 

  841.                 'data' => null,
    842. 

  842.                 'type' => self::COMMENT
    843. 

  843.             );
    844. 

  844. 

  845.         /* Otherwise if the next seven chacacters are a case-insensitive match
    846. 

  846.         for the word "DOCTYPE", then consume those characters and switch to the
    847. 

  847.         DOCTYPE state. */
    848. 

  848.         } elseif(strtolower($this->character($this->char + 1, 7)) === 'doctype') {
    849. 

  849.             $this->char += 7;
    850. 

  850.             $this->state = 'doctype';
    851. 

  851. 

  852.         /* Otherwise, is is a parse error. Switch to the bogus comment state.
    853. 

  853.         The next character that is consumed, if any, is the first character
    854. 

  854.         that will be in the comment. */
    855. 

  855.         } else {
    856. 

  856.             $this->char++;
    857. 

  857.             $this->state = 'bogusComment';
    858. 

  858.         }
    859. 

  859.     }
    860. 

  860. 

  861.     private function commentState() {
    862. 

  862.         /* Consume the next input character: */
    863. 

  863.         $this->char++;
    864. 

  864.         $char = $this->char();
    865. 

  865. 

  866.         /* U+002D HYPHEN-MINUS (-) */
    867. 

  867.         if($char === '-') {
    868. 

  868.             /* Switch to the comment dash state  */
    869. 

  869.             $this->state = 'commentDash';
    870. 

  870. 

  871.         /* EOF */
    872. 

  872.         } elseif($this->char === $this->EOF) {
    873. 

  873.             /* Parse error. Emit the comment token. Reconsume the EOF character
    874. 

  874.             in the data state. */
    875. 

  875.             $this->emitToken($this->token);
    876. 

  876.             $this->char--;
    877. 

  877.             $this->state = 'data';
    878. 

  878. 

  879.         /* Anything else */
    880. 

  880.         } else {
    881. 

  881.             /* Append the input character to the comment token's data. Stay in
    882. 

  882.             the comment state. */
    883. 

  883.             $this->token['data'] .= $char;
    884. 

  884.         }
    885. 

  885.     }
    886. 

  886. 

  887.     private function commentDashState() {
    888. 

  888.         /* Consume the next input character: */
    889. 

  889.         $this->char++;
    890. 

  890.         $char = $this->char();
    891. 

  891. 

  892.         /* U+002D HYPHEN-MINUS (-) */
    893. 

  893.         if($char === '-') {
    894. 

  894.             /* Switch to the comment end state  */
    895. 

  895.             $this->state = 'commentEnd';
    896. 

  896. 

  897.         /* EOF */
    898. 

  898.         } elseif($this->char === $this->EOF) {
    899. 

  899.             /* Parse error. Emit the comment token. Reconsume the EOF character
    900. 

  900.             in the data state. */
    901. 

  901.             $this->emitToken($this->token);
    902. 

  902.             $this->char--;
    903. 

  903.             $this->state = 'data';
    904. 

  904. 

  905.         /* Anything else */
    906. 

  906.         } else {
    907. 

  907.             /* Append a U+002D HYPHEN-MINUS (-) character and the input
    908. 

  908.             character to the comment token's data. Switch to the comment state. */
    909. 

  909.             $this->token['data'] .= '-'.$char;
    910. 

  910.             $this->state = 'comment';
    911. 

  911.         }
    912. 

  912.     }
    913. 

  913. 

  914.     private function commentEndState() {
    915. 

  915.         /* Consume the next input character: */
    916. 

  916.         $this->char++;
    917. 

  917.         $char = $this->char();
    918. 

  918. 

  919.         if($char === '>') {
    920. 

  920.             $this->emitToken($this->token);
    921. 

  921.             $this->state = 'data';
    922. 

  922. 

  923.         } elseif($char === '-') {
    924. 

  924.             $this->token['data'] .= '-';
    925. 

  925. 

  926.         } elseif($this->char === $this->EOF) {
    927. 

  927.             $this->emitToken($this->token);
    928. 

  928.             $this->char--;
    929. 

  929.             $this->state = 'data';
    930. 

  930. 

  931.         } else {
    932. 

  932.             $this->token['data'] .= '--'.$char;
    933. 

  933.             $this->state = 'comment';
    934. 

  934.         }
    935. 

  935.     }
    936. 

  936. 

  937.     private function doctypeState() {
    938. 

  938.         /* Consume the next input character: */
    939. 

  939.         $this->char++;
    940. 

  940.         $char = $this->char();
    941. 

  941. 

  942.         if(preg_match('/^[\t\n\x0b\x0c ]$/', $char)) {
    943. 

  943.             $this->state = 'beforeDoctypeName';
    944. 

  944. 

  945.         } else {
    946. 

  946.             $this->char--;
    947. 

  947.             $this->state = 'beforeDoctypeName';
    948. 

  948.         }
    949. 

  949.     }
    950. 

  950. 

  951.     private function beforeDoctypeNameState() {
    952. 

  952.         /* Consume the next input character: */
    953. 

  953.         $this->char++;
    954. 

  954.         $char = $this->char();
    955. 

  955. 

  956.         if(preg_match('/^[\t\n\x0b\x0c ]$/', $char)) {
    957. 

  957.             // Stay in the before DOCTYPE name state.
    958. 

  958. 

  959.         } elseif(preg_match('/^[a-z]$/', $char)) {
    960. 

  960.             $this->token = array(
    961. 

  961.                 'name' => strtoupper($char),
    962. 

  962.                 'type' => self::DOCTYPE,
    963. 

  963.                 'error' => true
    964. 

  964.             );
    965. 

  965. 

  966.             $this->state = 'doctypeName';
    967. 

  967. 

  968.         } elseif($char === '>') {
    969. 

  969.             $this->emitToken(array(
    970. 

  970.                 'name' => null,
    971. 

  971.                 'type' => self::DOCTYPE,
    972. 

  972.                 'error' => true
    973. 

  973.             ));
    974. 

  974. 

  975.             $this->state = 'data';
    976. 

  976. 

  977.         } elseif($this->char === $this->EOF) {
    978. 

  978.             $this->emitToken(array(
    979. 

  979.                 'name' => null,
    980. 

  980.                 'type' => self::DOCTYPE,
    981. 

  981.                 'error' => true
    982. 

  982.             ));
    983. 

  983. 

  984.             $this->char--;
    985. 

  985.             $this->state = 'data';
    986. 

  986. 

  987.         } else {
    988. 

  988.             $this->token = array(
    989. 

  989.                 'name' => $char,
    990. 

  990.                 'type' => self::DOCTYPE,
    991. 

  991.                 'error' => true
    992. 

  992.             );
    993. 

  993. 

  994.             $this->state = 'doctypeName';
    995. 

  995.         }
    996. 

  996.     }
    997. 

  997. 

  998.     private function doctypeNameState() {
    999. 

  999.         /* Consume the next input character: */
    1000. 

  1000.         $this->char++;
    1001. 

  1001.         $char = $this->char();
    1002. 

  1002. 

  1003.         if(preg_match('/^[\t\n\x0b\x0c ]$/', $char)) {
    1004. 

  1004.             $this->state = 'AfterDoctypeName';
    1005. 

  1005. 

  1006.         } elseif($char === '>') {
    1007. 

  1007.             $this->emitToken($this->token);
    1008. 

  1008.             $this->state = 'data';
    1009. 

  1009. 

  1010.         } elseif(preg_match('/^[a-z]$/', $char)) {
    1011. 

  1011.             $this->token['name'] .= strtoupper($char);
    1012. 

  1012. 

  1013.         } elseif($this->char === $this->EOF) {
    1014. 

  1014.             $this->emitToken($this->token);
    1015. 

  1015.             $this->char--;
    1016. 

  1016.             $this->state = 'data';
    1017. 

  1017. 

  1018.         } else {
    1019. 

  1019.             $this->token['name'] .= $char;
    1020. 

  1020.         }
    1021. 

  1021. 

  1022.         $this->token['error'] = ($this->token['name'] === 'HTML')
    1023. 

  1023.             ? false
    1024. 

  1024.             : true;
    1025. 

  1025.     }
    1026. 

  1026. 

  1027.     private function afterDoctypeNameState() {
    1028. 

  1028.         /* Consume the next input character: */
    1029. 

  1029.         $this->char++;
    1030. 

  1030.         $char = $this->char();
    1031. 

  1031. 

  1032.         if(preg_match('/^[\t\n\x0b\x0c ]$/', $char)) {
    1033. 

  1033.             // Stay in the DOCTYPE name state.
    1034. 

  1034. 

  1035.         } elseif($char === '>') {
    1036. 

  1036.             $this->emitToken($this->token);
    1037. 

  1037.             $this->state = 'data';
    1038. 

  1038. 

  1039.         } elseif($this->char === $this->EOF) {
    1040. 

  1040.             $this->emitToken($this->token);
    1041. 

  1041.             $this->char--;
    1042. 

  1042.             $this->state = 'data';
    1043. 

  1043. 

  1044.         } else {
    1045. 

  1045.             $this->token['error'] = true;
    1046. 

  1046.             $this->state = 'bogusDoctype';
    1047. 

  1047.         }
    1048. 

  1048.     }
    1049. 

  1049. 

  1050.     private function bogusDoctypeState() {
    1051. 

  1051.         /* Consume the next input character: */
    1052. 

  1052.         $this->char++;
    1053. 

  1053.         $char = $this->char();
    1054. 

  1054. 

  1055.         if($char === '>') {
    1056. 

  1056.             $this->emitToken($this->token);
    1057. 

  1057.             $this->state = 'data';
    1058. 

  1058. 

  1059.         } elseif($this->char === $this->EOF) {
    1060. 

  1060.             $this->emitToken($this->token);
    1061. 

  1061.             $this->char--;
    1062. 

  1062.             $this->state = 'data';
    1063. 

  1063. 

  1064.         } else {
    1065. 

  1065.             // Stay in the bogus DOCTYPE state.
    1066. 

  1066.         }
    1067. 

  1067.     }
    1068. 

  1068. 

  1069.     private function entity() {
    1070. 

  1070.         $start = $this->char;
    1071. 

  1071. 

  1072.         // This section defines how to consume an entity. This definition is
    1073. 

  1073.         // used when parsing entities in text and in attributes.
    1074. 

  1074. 

  1075.         // The behaviour depends on the identity of the next character (the
    1076. 

  1076.         // one immediately after the U+0026 AMPERSAND character): 
    1077. 

  1077. 

  1078.         switch($this->character($this->char + 1)) {
    1079. 

  1079.             // U+0023 NUMBER SIGN (#)
    1080. 

  1080.             case '#':
    1081. 

  1081. 

  1082.                 // The behaviour further depends on the character after the
    1083. 

  1083.                 // U+0023 NUMBER SIGN:
    1084. 

  1084.                 switch($this->character($this->char + 1)) {
    1085. 

  1085.                     // U+0078 LATIN SMALL LETTER X
    1086. 

  1086.                     // U+0058 LATIN CAPITAL LETTER X
    1087. 

  1087.                     case 'x':
    1088. 

  1088.                     case 'X':
    1089. 

  1089.                         // Follow the steps below, but using the range of
    1090. 

  1090.                         // characters U+0030 DIGIT ZERO through to U+0039 DIGIT
    1091. 

  1091.                         // NINE, U+0061 LATIN SMALL LETTER A through to U+0066
    1092. 

  1092.                         // LATIN SMALL LETTER F, and U+0041 LATIN CAPITAL LETTER
    1093. 

  1093.                         // A, through to U+0046 LATIN CAPITAL LETTER F (in other
    1094. 

  1094.                         // words, 0-9, A-F, a-f).
    1095. 

  1095.                         $char = 1;
    1096. 

  1096.                         $char_class = '0-9A-Fa-f';
    1097. 

  1097.                     break;
    1098. 

  1098. 

  1099.                     // Anything else
    1100. 

  1100.                     default:
    1101. 

  1101.                         // Follow the steps below, but using the range of
    1102. 

  1102.                         // characters U+0030 DIGIT ZERO through to U+0039 DIGIT
    1103. 

  1103.                         // NINE (i.e. just 0-9).
    1104. 

  1104.                         $char = 0;
    1105. 

  1105.                         $char_class = '0-9';
    1106. 

  1106.                     break;
    1107. 

  1107.                 }
    1108. 

  1108. 

  1109.                 // Consume as many characters as match the range of characters
    1110. 

  1110.                 // given above.
    1111. 

  1111.                 $this->char++;
    1112. 

  1112.                 $e_name = $this->characters($char_class, $this->char + $char + 1);
    1113. 

  1113.                 $entity = $this->character($start, $this->char);
    1114. 

  1114.                 $cond = strlen($e_name) > 0;
    1115. 

  1115. 

  1116.                 // The rest of the parsing happens bellow.
    1117. 

  1117.             break;
    1118. 

  1118. 

  1119.             // Anything else
    1120. 

  1120.             default:
    1121. 

  1121.                 // Consume the maximum number of characters possible, with the
    1122. 

  1122.                 // consumed characters case-sensitively matching one of the
    1123. 

  1123.                 // identifiers in the first column of the entities table.
    1124. 

  1124.                 $e_name = $this->characters('0-9A-Za-z;', $this->char + 1);
    1125. 

  1125.                 $len = strlen($e_name);
    1126. 

  1126. 

  1127.                 for($c = 1; $c <= $len; $c++) {
    1128. 

  1128.                     $id = substr($e_name, 0, $c);
    1129. 

  1129.                     $this->char++;
    1130. 

  1130. 

  1131.                     if(in_array($id, $this->entities)) {
    1132. 

  1132.                         if ($e_name[$c-1] !== ';') {
    1133. 

  1133.                             if ($c < $len && $e_name[$c] == ';') {
    1134. 

  1134.                                 $this->char++; // consume extra semicolon
    1135. 

  1135.                             }
    1136. 

  1136.                         }
    1137. 

  1137.                         $entity = $id;
    1138. 

  1138.                         break;
    1139. 

  1139.                     }
    1140. 

  1140.                 }
    1141. 

  1141. 

  1142.                 $cond = isset($entity);
    1143. 

  1143.                 // The rest of the parsing happens bellow.
    1144. 

  1144.             break;
    1145. 

  1145.         }
    1146. 

  1146. 

  1147.         if(!$cond) {
    1148. 

  1148.             // If no match can be made, then this is a parse error. No
    1149. 

  1149.             // characters are consumed, and nothing is returned.
    1150. 

  1150.             $this->char = $start;
    1151. 

  1151.             return false;
    1152. 

  1152.         }
    1153. 

  1153. 

  1154.         // Return a character token for the character corresponding to the
    1155. 

  1155.         // entity name (as given by the second column of the entities table).
    1156. 

  1156.         return html_entity_decode('&'.$entity.';', ENT_QUOTES, 'UTF-8');
    1157. 

  1157.     }
    1158. 

  1158. 

  1159.     private function emitToken($token) {
    1160. 

  1160.         $emit = $this->tree->emitToken($token);
    1161. 

  1161. 

  1162.         if(is_int($emit)) {
    1163. 

  1163.             $this->content_model = $emit;
    1164. 

  1164. 

  1165.         } elseif($token['type'] === self::ENDTAG) {
    1166. 

  1166.             $this->content_model = self::PCDATA;
    1167. 

  1167.         }
    1168. 

  1168.     }
    1169. 

  1169. 

  1170.     private function EOF() {
    1171. 

  1171.         $this->state = null;
    1172. 

  1172.         $this->tree->emitToken(array(
    1173. 

  1173.             'type' => self::EOF
    1174. 

  1174.         ));
    1175. 

  1175.     }
    1176. 

  1176. }
    1177. 

  1177. 

  1178. class HTML5TreeConstructer {
    1179. 

  1179.     public $stack = array();
    1180. 

  1180. 

  1181.     private $phase;
    1182. 

  1182.     private $mode;
    1183. 

  1183.     private $dom;
    1184. 

  1184.     private $foster_parent = null;
    1185. 

  1185.     private $a_formatting  = array();
    1186. 

  1186. 

  1187.     private $head_pointer = null;
    1188. 

  1188.     private $form_pointer = null;
    1189. 

  1189. 

  1190.     private $scoping = array('button','caption','html','marquee','object','table','td','th');
    1191. 

  1191.     private $formatting = array('a','b','big','em','font','i','nobr','s','small','strike','strong','tt','u');
    1192. 

  1192.     private $special = array('address','area','base','basefont','bgsound',
    1193. 

  1193.     'blockquote','body','br','center','col','colgroup','dd','dir','div','dl',
    1194. 

  1194.     'dt','embed','fieldset','form','frame','frameset','h1','h2','h3','h4','h5',
    1195. 

  1195.     'h6','head','hr','iframe','image','img','input','isindex','li','link',
    1196. 

  1196.     'listing','menu','meta','noembed','noframes','noscript','ol','optgroup',
    1197. 

  1197.     'option','p','param','plaintext','pre','script','select','spacer','style',
    1198. 

  1198.     'tbody','textarea','tfoot','thead','title','tr','ul','wbr');
    1199. 

  1199. 

  1200.     // The different phases.
    1201. 

  1201.     const INIT_PHASE = 0;
    1202. 

  1202.     const ROOT_PHASE = 1;
    1203. 

  1203.     const MAIN_PHASE = 2;
    1204. 

  1204.     const END_PHASE  = 3;
    1205. 

  1205. 

  1206.     // The different insertion modes for the main phase.
    1207. 

  1207.     const BEFOR_HEAD = 0;
    1208. 

  1208.     const IN_HEAD    = 1;
    1209. 

  1209.     const AFTER_HEAD = 2;
    1210. 

  1210.     const IN_BODY    = 3;
    1211. 

  1211.     const IN_TABLE   = 4;
    1212. 

  1212.     const IN_CAPTION = 5;
    1213. 

  1213.     const IN_CGROUP  = 6;
    1214. 

  1214.     const IN_TBODY   = 7;
    1215. 

  1215.     const IN_ROW     = 8;
    1216. 

  1216.     const IN_CELL    = 9;
    1217. 

  1217.     const IN_SELECT  = 10;
    1218. 

  1218.     const AFTER_BODY = 11;
    1219. 

  1219.     const IN_FRAME   = 12;
    1220. 

  1220.     const AFTR_FRAME = 13;
    1221. 

  1221. 

  1222.     // The different types of elements.
    1223. 

  1223.     const SPECIAL    = 0;
    1224. 

  1224.     const SCOPING    = 1;
    1225. 

  1225.     const FORMATTING = 2;
    1226. 

  1226.     const PHRASING   = 3;
    1227. 

  1227. 

  1228.     const MARKER     = 0;
    1229. 

  1229. 

  1230.     public function __construct() {
    1231. 

  1231.         $this->phase = self::INIT_PHASE;
    1232. 

  1232.         $this->mode = self::BEFOR_HEAD;
    1233. 

  1233.         $this->dom = new DOMDocument;
    1234. 

  1234. 

  1235.         $this->dom->encoding = 'UTF-8';
    1236. 

  1236.         $this->dom->preserveWhiteSpace = true;
    1237. 

  1237.         $this->dom->substituteEntities = true;
    1238. 

  1238.         $this->dom->strictErrorChecking = false;
    1239. 

  1239.     }
    1240. 

  1240. 

  1241.     // Process tag tokens
    1242. 

  1242.     public function emitToken($token) {
    1243. 

  1243.         switch($this->phase) {
    1244. 

  1244.             case self::INIT_PHASE: return $this->initPhase($token); break;
    1245. 

  1245.             case self::ROOT_PHASE: return $this->rootElementPhase($token); break;
    1246. 

  1246.             case self::MAIN_PHASE: return $this->mainPhase($token); break;
    1247. 

  1247.             case self::END_PHASE : return $this->trailingEndPhase($token); break;
    1248. 

  1248.         }
    1249. 

  1249.     }
    1250. 

  1250. 

  1251.     private function initPhase($token) {
    1252. 

  1252.         /* Initially, the tree construction stage must handle each token
    1253. 

  1253.         emitted from the tokenisation stage as follows: */
    1254. 

  1254. 

  1255.         /* A DOCTYPE token that is marked as being in error
    1256. 

  1256.         A comment token
    1257. 

  1257.         A start tag token
    1258. 

  1258.         An end tag token
    1259. 

  1259.         A character token that is not one of one of U+0009 CHARACTER TABULATION,
    1260. 

  1260.             U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    1261. 

  1261.             or U+0020 SPACE
    1262. 

  1262.         An end-of-file token */
    1263. 

  1263.         if((isset($token['error']) && $token['error']) ||
    1264. 

  1264.         $token['type'] === HTML5::COMMENT ||
    1265. 

  1265.         $token['type'] === HTML5::STARTTAG ||
    1266. 

  1266.         $token['type'] === HTML5::ENDTAG ||
    1267. 

  1267.         $token['type'] === HTML5::EOF ||
    1268. 

  1268.         ($token['type'] === HTML5::CHARACTR && isset($token['data']) &&
    1269. 

  1269.         !preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data']))) {
    1270. 

  1270.             /* This specification does not define how to handle this case. In
    1271. 

  1271.             particular, user agents may ignore the entirety of this specification
    1272. 

  1272.             altogether for such documents, and instead invoke special parse modes
    1273. 

  1273.             with a greater emphasis on backwards compatibility. */
    1274. 

  1274. 

  1275.             $this->phase = self::ROOT_PHASE;
    1276. 

  1276.             return $this->rootElementPhase($token);
    1277. 

  1277. 

  1278.         /* A DOCTYPE token marked as being correct */
    1279. 

  1279.         } elseif(isset($token['error']) && !$token['error']) {
    1280. 

  1280.             /* Append a DocumentType node to the Document  node, with the name
    1281. 

  1281.             attribute set to the name given in the DOCTYPE token (which will be
    1282. 

  1282.             "HTML"), and the other attributes specific to DocumentType objects
    1283. 

  1283.             set to null, empty lists, or the empty string as appropriate. */
    1284. 

  1284.             $doctype = new DOMDocumentType(null, null, 'HTML');
    1285. 

  1285. 

  1286.             /* Then, switch to the root element phase of the tree construction
    1287. 

  1287.             stage. */
    1288. 

  1288.             $this->phase = self::ROOT_PHASE;
    1289. 

  1289. 

  1290.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    1291. 

  1291.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    1292. 

  1292.         or U+0020 SPACE */
    1293. 

  1293.         } elseif(isset($token['data']) && preg_match('/^[\t\n\x0b\x0c ]+$/',
    1294. 

  1294.         $token['data'])) {
    1295. 

  1295.             /* Append that character  to the Document node. */
    1296. 

  1296.             $text = $this->dom->createTextNode($token['data']);
    1297. 

  1297.             $this->dom->appendChild($text);
    1298. 

  1298.         }
    1299. 

  1299.     }
    1300. 

  1300. 

  1301.     private function rootElementPhase($token) {
    1302. 

  1302.         /* After the initial phase, as each token is emitted from the tokenisation
    1303. 

  1303.         stage, it must be processed as described in this section. */
    1304. 

  1304. 

  1305.         /* A DOCTYPE token */
    1306. 

  1306.         if($token['type'] === HTML5::DOCTYPE) {
    1307. 

  1307.             // Parse error. Ignore the token.
    1308. 

  1308. 

  1309.         /* A comment token */
    1310. 

  1310.         } elseif($token['type'] === HTML5::COMMENT) {
    1311. 

  1311.             /* Append a Comment node to the Document object with the data
    1312. 

  1312.             attribute set to the data given in the comment token. */
    1313. 

  1313.             $comment = $this->dom->createComment($token['data']);
    1314. 

  1314.             $this->dom->appendChild($comment);
    1315. 

  1315. 

  1316.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    1317. 

  1317.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    1318. 

  1318.         or U+0020 SPACE */
    1319. 

  1319.         } elseif($token['type'] === HTML5::CHARACTR &&
    1320. 

  1320.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) {
    1321. 

  1321.             /* Append that character  to the Document node. */
    1322. 

  1322.             $text = $this->dom->createTextNode($token['data']);
    1323. 

  1323.             $this->dom->appendChild($text);
    1324. 

  1324. 

  1325.         /* A character token that is not one of U+0009 CHARACTER TABULATION,
    1326. 

  1326.             U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED
    1327. 

  1327.             (FF), or U+0020 SPACE
    1328. 

  1328.         A start tag token
    1329. 

  1329.         An end tag token
    1330. 

  1330.         An end-of-file token */
    1331. 

  1331.         } elseif(($token['type'] === HTML5::CHARACTR &&
    1332. 

  1332.         !preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) ||
    1333. 

  1333.         $token['type'] === HTML5::STARTTAG ||
    1334. 

  1334.         $token['type'] === HTML5::ENDTAG ||
    1335. 

  1335.         $token['type'] === HTML5::EOF) {
    1336. 

  1336.             /* Create an HTMLElement node with the tag name html, in the HTML
    1337. 

  1337.             namespace. Append it to the Document object. Switch to the main
    1338. 

  1338.             phase and reprocess the current token. */
    1339. 

  1339.             $html = $this->dom->createElement('html');
    1340. 

  1340.             $this->dom->appendChild($html);
    1341. 

  1341.             $this->stack[] = $html;
    1342. 

  1342. 

  1343.             $this->phase = self::MAIN_PHASE;
    1344. 

  1344.             return $this->mainPhase($token);
    1345. 

  1345.         }
    1346. 

  1346.     }
    1347. 

  1347. 

  1348.     private function mainPhase($token) {
    1349. 

  1349.         /* Tokens in the main phase must be handled as follows: */
    1350. 

  1350. 

  1351.         /* A DOCTYPE token */
    1352. 

  1352.         if($token['type'] === HTML5::DOCTYPE) {
    1353. 

  1353.             // Parse error. Ignore the token.
    1354. 

  1354. 

  1355.         /* A start tag token with the tag name "html" */
    1356. 

  1356.         } elseif($token['type'] === HTML5::STARTTAG && $token['name'] === 'html') {
    1357. 

  1357.             /* If this start tag token was not the first start tag token, then
    1358. 

  1358.             it is a parse error. */
    1359. 

  1359. 

  1360.             /* For each attribute on the token, check to see if the attribute
    1361. 

  1361.             is already present on the top element of the stack of open elements.
    1362. 

  1362.             If it is not, add the attribute and its corresponding value to that
    1363. 

  1363.             element. */
    1364. 

  1364.             foreach($token['attr'] as $attr) {
    1365. 

  1365.                 if(!$this->stack[0]->hasAttribute($attr['name'])) {
    1366. 

  1366.                     $this->stack[0]->setAttribute($attr['name'], $attr['value']);
    1367. 

  1367.                 }
    1368. 

  1368.             }
    1369. 

  1369. 

  1370.         /* An end-of-file token */
    1371. 

  1371.         } elseif($token['type'] === HTML5::EOF) {
    1372. 

  1372.             /* Generate implied end tags. */
    1373. 

  1373.             $this->generateImpliedEndTags();
    1374. 

  1374. 

  1375.         /* Anything else. */
    1376. 

  1376.         } else {
    1377. 

  1377.             /* Depends on the insertion mode: */
    1378. 

  1378.             switch($this->mode) {
    1379. 

  1379.                 case self::BEFOR_HEAD: return $this->beforeHead($token); break;
    1380. 

  1380.                 case self::IN_HEAD:    return $this->inHead($token); break;
    1381. 

  1381.                 case self::AFTER_HEAD: return $this->afterHead($token); break;
    1382. 

  1382.                 case self::IN_BODY:    return $this->inBody($token); break;
    1383. 

  1383.                 case self::IN_TABLE:   return $this->inTable($token); break;
    1384. 

  1384.                 case self::IN_CAPTION: return $this->inCaption($token); break;
    1385. 

  1385.                 case self::IN_CGROUP:  return $this->inColumnGroup($token); break;
    1386. 

  1386.                 case self::IN_TBODY:   return $this->inTableBody($token); break;
    1387. 

  1387.                 case self::IN_ROW:     return $this->inRow($token); break;
    1388. 

  1388.                 case self::IN_CELL:    return $this->inCell($token); break;
    1389. 

  1389.                 case self::IN_SELECT:  return $this->inSelect($token); break;
    1390. 

  1390.                 case self::AFTER_BODY: return $this->afterBody($token); break;
    1391. 

  1391.                 case self::IN_FRAME:   return $this->inFrameset($token); break;
    1392. 

  1392.                 case self::AFTR_FRAME: return $this->afterFrameset($token); break;
    1393. 

  1393.                 case self::END_PHASE:  return $this->trailingEndPhase($token); break;
    1394. 

  1394.             }
    1395. 

  1395.         }
    1396. 

  1396.     }
    1397. 

  1397. 

  1398.     private function beforeHead($token) {
    1399. 

  1399.         /* Handle the token as follows: */
    1400. 

  1400. 

  1401.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    1402. 

  1402.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    1403. 

  1403.         or U+0020 SPACE */
    1404. 

  1404.         if($token['type'] === HTML5::CHARACTR &&
    1405. 

  1405.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) {
    1406. 

  1406.             /* Append the character to the current node. */
    1407. 

  1407.             $this->insertText($token['data']);
    1408. 

  1408. 

  1409.         /* A comment token */
    1410. 

  1410.         } elseif($token['type'] === HTML5::COMMENT) {
    1411. 

  1411.             /* Append a Comment node to the current node with the data attribute
    1412. 

  1412.             set to the data given in the comment token. */
    1413. 

  1413.             $this->insertComment($token['data']);
    1414. 

  1414. 

  1415.         /* A start tag token with the tag name "head" */
    1416. 

  1416.         } elseif($token['type'] === HTML5::STARTTAG && $token['name'] === 'head') {
    1417. 

  1417.             /* Create an element for the token, append the new element to the
    1418. 

  1418.             current node and push it onto the stack of open elements. */
    1419. 

  1419.             $element = $this->insertElement($token);
    1420. 

  1420. 

  1421.             /* Set the head element pointer to this new element node. */
    1422. 

  1422.             $this->head_pointer = $element;
    1423. 

  1423. 

  1424.             /* Change the insertion mode to "in head". */
    1425. 

  1425.             $this->mode = self::IN_HEAD;
    1426. 

  1426. 

  1427.         /* A start tag token whose tag name is one of: "base", "link", "meta",
    1428. 

  1428.         "script", "style", "title". Or an end tag with the tag name "html".
    1429. 

  1429.         Or a character token that is not one of U+0009 CHARACTER TABULATION,
    1430. 

  1430.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    1431. 

  1431.         or U+0020 SPACE. Or any other start tag token */
    1432. 

  1432.         } elseif($token['type'] === HTML5::STARTTAG ||
    1433. 

  1433.         ($token['type'] === HTML5::ENDTAG && $token['name'] === 'html') ||
    1434. 

  1434.         ($token['type'] === HTML5::CHARACTR && !preg_match('/^[\t\n\x0b\x0c ]$/',
    1435. 

  1435.         $token['data']))) {
    1436. 

  1436.             /* Act as if a start tag token with the tag name "head" and no
    1437. 

  1437.             attributes had been seen, then reprocess the current token. */
    1438. 

  1438.             $this->beforeHead(array(
    1439. 

  1439.                 'name' => 'head',
    1440. 

  1440.                 'type' => HTML5::STARTTAG,
    1441. 

  1441.                 'attr' => array()
    1442. 

  1442.             ));
    1443. 

  1443. 

  1444.             return $this->inHead($token);
    1445. 

  1445. 

  1446.         /* Any other end tag */
    1447. 

  1447.         } elseif($token['type'] === HTML5::ENDTAG) {
    1448. 

  1448.             /* Parse error. Ignore the token. */
    1449. 

  1449.         }
    1450. 

  1450.     }
    1451. 

  1451. 

  1452.     private function inHead($token) {
    1453. 

  1453.         /* Handle the token as follows: */
    1454. 

  1454. 

  1455.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    1456. 

  1456.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    1457. 

  1457.         or U+0020 SPACE.
    1458. 

    1459. 

  1459.         THIS DIFFERS FROM THE SPEC: If the current node is either a title, style
    1460. 

  1460.         or script element, append the character to the current node regardless
    1461. 

  1461.         of its content. */
    1462. 

  1462.         if(($token['type'] === HTML5::CHARACTR &&
    1463. 

  1463.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) || (
    1464. 

  1464.         $token['type'] === HTML5::CHARACTR && in_array(end($this->stack)->nodeName,
    1465. 

  1465.         array('title', 'style', 'script')))) {
    1466. 

  1466.             /* Append the character to the current node. */
    1467. 

  1467.             $this->insertText($token['data']);
    1468. 

  1468. 

  1469.         /* A comment token */
    1470. 

  1470.         } elseif($token['type'] === HTML5::COMMENT) {
    1471. 

  1471.             /* Append a Comment node to the current node with the data attribute
    1472. 

  1472.             set to the data given in the comment token. */
    1473. 

  1473.             $this->insertComment($token['data']);
    1474. 

  1474. 

  1475.         } elseif($token['type'] === HTML5::ENDTAG &&
    1476. 

  1476.         in_array($token['name'], array('title', 'style', 'script'))) {
    1477. 

  1477.             array_pop($this->stack);
    1478. 

  1478.             return HTML5::PCDATA;
    1479. 

  1479. 

  1480.         /* A start tag with the tag name "title" */
    1481. 

  1481.         } elseif($token['type'] === HTML5::STARTTAG && $token['name'] === 'title') {
    1482. 

  1482.             /* Create an element for the token and append the new element to the
    1483. 

  1483.             node pointed to by the head element pointer, or, if that is null
    1484. 

  1484.             (innerHTML case), to the current node. */
    1485. 

  1485.             if($this->head_pointer !== null) {
    1486. 

  1486.                 $element = $this->insertElement($token, false);
    1487. 

  1487.                 $this->head_pointer->appendChild($element);
    1488. 

  1488. 

  1489.             } else {
    1490. 

  1490.                 $element = $this->insertElement($token);
    1491. 

  1491.             }
    1492. 

  1492. 

  1493.             /* Switch the tokeniser's content model flag  to the RCDATA state. */
    1494. 

  1494.             return HTML5::RCDATA;
    1495. 

  1495. 

  1496.         /* A start tag with the tag name "style" */
    1497. 

  1497.         } elseif($token['type'] === HTML5::STARTTAG && $token['name'] === 'style') {
    1498. 

  1498.             /* Create an element for the token and append the new element to the
    1499. 

  1499.             node pointed to by the head element pointer, or, if that is null
    1500. 

  1500.             (innerHTML case), to the current node. */
    1501. 

  1501.             if($this->head_pointer !== null) {
    1502. 

  1502.                 $element = $this->insertElement($token, false);
    1503. 

  1503.                 $this->head_pointer->appendChild($element);
    1504. 

  1504. 

  1505.             } else {
    1506. 

  1506.                 $this->insertElement($token);
    1507. 

  1507.             }
    1508. 

  1508. 

  1509.             /* Switch the tokeniser's content model flag  to the CDATA state. */
    1510. 

  1510.             return HTML5::CDATA;
    1511. 

  1511. 

  1512.         /* A start tag with the tag name "script" */
    1513. 

  1513.         } elseif($token['type'] === HTML5::STARTTAG && $token['name'] === 'script') {
    1514. 

  1514.             /* Create an element for the token. */
    1515. 

  1515.             $element = $this->insertElement($token, false);
    1516. 

  1516.             $this->head_pointer->appendChild($element);
    1517. 

  1517. 

  1518.             /* Switch the tokeniser's content model flag  to the CDATA state. */
    1519. 

  1519.             return HTML5::CDATA;
    1520. 

  1520. 

  1521.         /* A start tag with the tag name "base", "link", or "meta" */
    1522. 

  1522.         } elseif($token['type'] === HTML5::STARTTAG && in_array($token['name'],
    1523. 

  1523.         array('base', 'link', 'meta'))) {
    1524. 

  1524.             /* Create an element for the token and append the new element to the
    1525. 

  1525.             node pointed to by the head element pointer, or, if that is null
    1526. 

  1526.             (innerHTML case), to the current node. */
    1527. 

  1527.             if($this->head_pointer !== null) {
    1528. 

  1528.                 $element = $this->insertElement($token, false);
    1529. 

  1529.                 $this->head_pointer->appendChild($element);
    1530. 

  1530.                 array_pop($this->stack);
    1531. 

  1531. 

  1532.             } else {
    1533. 

  1533.                 $this->insertElement($token);
    1534. 

  1534.             }
    1535. 

  1535. 

  1536.         /* An end tag with the tag name "head" */
    1537. 

  1537.         } elseif($token['type'] === HTML5::ENDTAG && $token['name'] === 'head') {
    1538. 

  1538.             /* If the current node is a head element, pop the current node off
    1539. 

  1539.             the stack of open elements. */
    1540. 

  1540.             if($this->head_pointer->isSameNode(end($this->stack))) {
    1541. 

  1541.                 array_pop($this->stack);
    1542. 

  1542. 

  1543.             /* Otherwise, this is a parse error. */
    1544. 

  1544.             } else {
    1545. 

  1545.                 // k
    1546. 

  1546.             }
    1547. 

  1547. 

  1548.             /* Change the insertion mode to "after head". */
    1549. 

  1549.             $this->mode = self::AFTER_HEAD;
    1550. 

  1550. 

  1551.         /* A start tag with the tag name "head" or an end tag except "html". */
    1552. 

  1552.         } elseif(($token['type'] === HTML5::STARTTAG && $token['name'] === 'head') ||
    1553. 

  1553.         ($token['type'] === HTML5::ENDTAG && $token['name'] !== 'html')) {
    1554. 

  1554.             // Parse error. Ignore the token.
    1555. 

  1555. 

  1556.         /* Anything else */
    1557. 

  1557.         } else {
    1558. 

  1558.             /* If the current node is a head element, act as if an end tag
    1559. 

  1559.             token with the tag name "head" had been seen. */
    1560. 

  1560.             if($this->head_pointer->isSameNode(end($this->stack))) {
    1561. 

  1561.                 $this->inHead(array(
    1562. 

  1562.                     'name' => 'head',
    1563. 

  1563.                     'type' => HTML5::ENDTAG
    1564. 

  1564.                 ));
    1565. 

  1565. 

  1566.             /* Otherwise, change the insertion mode to "after head". */
    1567. 

  1567.             } else {
    1568. 

  1568.                 $this->mode = self::AFTER_HEAD;
    1569. 

  1569.             }
    1570. 

  1570. 

  1571.             /* Then, reprocess the current token. */
    1572. 

  1572.             return $this->afterHead($token);
    1573. 

  1573.         }
    1574. 

  1574.     }
    1575. 

  1575. 

  1576.     private function afterHead($token) {
    1577. 

  1577.         /* Handle the token as follows: */
    1578. 

  1578. 

  1579.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    1580. 

  1580.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    1581. 

  1581.         or U+0020 SPACE */
    1582. 

  1582.         if($token['type'] === HTML5::CHARACTR &&
    1583. 

  1583.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) {
    1584. 

  1584.             /* Append the character to the current node. */
    1585. 

  1585.             $this->insertText($token['data']);
    1586. 

  1586. 

  1587.         /* A comment token */
    1588. 

  1588.         } elseif($token['type'] === HTML5::COMMENT) {
    1589. 

  1589.             /* Append a Comment node to the current node with the data attribute
    1590. 

  1590.             set to the data given in the comment token. */
    1591. 

  1591.             $this->insertComment($token['data']);
    1592. 

  1592. 

  1593.         /* A start tag token with the tag name "body" */
    1594. 

  1594.         } elseif($token['type'] === HTML5::STARTTAG && $token['name'] === 'body') {
    1595. 

  1595.             /* Insert a body element for the token. */
    1596. 

  1596.             $this->insertElement($token);
    1597. 

  1597. 

  1598.             /* Change the insertion mode to "in body". */
    1599. 

  1599.             $this->mode = self::IN_BODY;
    1600. 

  1600. 

  1601.         /* A start tag token with the tag name "frameset" */
    1602. 

  1602.         } elseif($token['type'] === HTML5::STARTTAG && $token['name'] === 'frameset') {
    1603. 

  1603.             /* Insert a frameset element for the token. */
    1604. 

  1604.             $this->insertElement($token);
    1605. 

  1605. 

  1606.             /* Change the insertion mode to "in frameset". */
    1607. 

  1607.             $this->mode = self::IN_FRAME;
    1608. 

  1608. 

  1609.         /* A start tag token whose tag name is one of: "base", "link", "meta",
    1610. 

  1610.         "script", "style", "title" */
    1611. 

  1611.         } elseif($token['type'] === HTML5::STARTTAG && in_array($token['name'],
    1612. 

  1612.         array('base', 'link', 'meta', 'script', 'style', 'title'))) {
    1613. 

  1613.             /* Parse error. Switch the insertion mode back to "in head" and
    1614. 

  1614.             reprocess the token. */
    1615. 

  1615.             $this->mode = self::IN_HEAD;
    1616. 

  1616.             return $this->inHead($token);
    1617. 

  1617. 

  1618.         /* Anything else */
    1619. 

  1619.         } else {
    1620. 

  1620.             /* Act as if a start tag token with the tag name "body" and no
    1621. 

  1621.             attributes had been seen, and then reprocess the current token. */
    1622. 

  1622.             $this->afterHead(array(
    1623. 

  1623.                 'name' => 'body',
    1624. 

  1624.                 'type' => HTML5::STARTTAG,
    1625. 

  1625.                 'attr' => array()
    1626. 

  1626.             ));
    1627. 

  1627. 

  1628.             return $this->inBody($token);
    1629. 

  1629.         }
    1630. 

  1630.     }
    1631. 

  1631. 

  1632.     private function inBody($token) {
    1633. 

  1633.         /* Handle the token as follows: */
    1634. 

  1634. 

  1635.         switch($token['type']) {
    1636. 

  1636.             /* A character token */
    1637. 

  1637.             case HTML5::CHARACTR:
    1638. 

  1638.                 /* Reconstruct the active formatting elements, if any. */
    1639. 

  1639.                 $this->reconstructActiveFormattingElements();
    1640. 

  1640. 

  1641.                 /* Append the token's character to the current node. */
    1642. 

  1642.                 $this->insertText($token['data']);
    1643. 

  1643.             break;
    1644. 

  1644. 

  1645.             /* A comment token */
    1646. 

  1646.             case HTML5::COMMENT:
    1647. 

  1647.                 /* Append a Comment node to the current node with the data
    1648. 

  1648.                 attribute set to the data given in the comment token. */
    1649. 

  1649.                 $this->insertComment($token['data']);
    1650. 

  1650.             break;
    1651. 

  1651. 

  1652.             case HTML5::STARTTAG:
    1653. 

  1653.             switch($token['name']) {
    1654. 

  1654.                 /* A start tag token whose tag name is one of: "script",
    1655. 

  1655.                 "style" */
    1656. 

  1656.                 case 'script': case 'style':
    1657. 

  1657.                     /* Process the token as if the insertion mode had been "in
    1658. 

  1658.                     head". */
    1659. 

  1659.                     return $this->inHead($token);
    1660. 

  1660.                 break;
    1661. 

  1661. 

  1662.                 /* A start tag token whose tag name is one of: "base", "link",
    1663. 

  1663.                 "meta", "title" */
    1664. 

  1664.                 case 'base': case 'link': case 'meta': case 'title':
    1665. 

  1665.                     /* Parse error. Process the token as if the insertion mode
    1666. 

  1666.                     had    been "in head". */
    1667. 

  1667.                     return $this->inHead($token);
    1668. 

  1668.                 break;
    1669. 

  1669. 

  1670.                 /* A start tag token with the tag name "body" */
    1671. 

  1671.                 case 'body':
    1672. 

  1672.                     /* Parse error. If the second element on the stack of open
    1673. 

  1673.                     elements is not a body element, or, if the stack of open
    1674. 

  1674.                     elements has only one node on it, then ignore the token.
    1675. 

  1675.                     (innerHTML case) */
    1676. 

  1676.                     if(count($this->stack) === 1 || $this->stack[1]->nodeName !== 'body') {
    1677. 

  1677.                         // Ignore
    1678. 

  1678. 

  1679.                     /* Otherwise, for each attribute on the token, check to see
    1680. 

  1680.                     if the attribute is already present on the body element (the
    1681. 

  1681.                     second element)    on the stack of open elements. If it is not,
    1682. 

  1682.                     add the attribute and its corresponding value to that
    1683. 

  1683.                     element. */
    1684. 

  1684.                     } else {
    1685. 

  1685.                         foreach($token['attr'] as $attr) {
    1686. 

  1686.                             if(!$this->stack[1]->hasAttribute($attr['name'])) {
    1687. 

  1687.                                 $this->stack[1]->setAttribute($attr['name'], $attr['value']);
    1688. 

  1688.                             }
    1689. 

  1689.                         }
    1690. 

  1690.                     }
    1691. 

  1691.                 break;
    1692. 

  1692. 

  1693.                 /* A start tag whose tag name is one of: "address",
    1694. 

  1694.                 "blockquote", "center", "dir", "div", "dl", "fieldset",
    1695. 

  1695.                 "listing", "menu", "ol", "p", "ul" */
    1696. 

  1696.                 case 'address': case 'blockquote': case 'center': case 'dir':
    1697. 

  1697.                 case 'div': case 'dl': case 'fieldset': case 'listing':
    1698. 

  1698.                 case 'menu': case 'ol': case 'p': case 'ul':
    1699. 

  1699.                     /* If the stack of open elements has a p element in scope,
    1700. 

  1700.                     then act as if an end tag with the tag name p had been
    1701. 

  1701.                     seen. */
    1702. 

  1702.                     if($this->elementInScope('p')) {
    1703. 

  1703.                         $this->emitToken(array(
    1704. 

  1704.                             'name' => 'p',
    1705. 

  1705.                             'type' => HTML5::ENDTAG
    1706. 

  1706.                         ));
    1707. 

  1707.                     }
    1708. 

  1708. 

  1709.                     /* Insert an HTML element for the token. */
    1710. 

  1710.                     $this->insertElement($token);
    1711. 

  1711.                 break;
    1712. 

  1712. 

  1713.                 /* A start tag whose tag name is "form" */
    1714. 

  1714.                 case 'form':
    1715. 

  1715.                     /* If the form element pointer is not null, ignore the
    1716. 

  1716.                     token with a parse error. */
    1717. 

  1717.                     if($this->form_pointer !== null) {
    1718. 

  1718.                         // Ignore.
    1719. 

  1719. 

  1720.                     /* Otherwise: */
    1721. 

  1721.                     } else {
    1722. 

  1722.                         /* If the stack of open elements has a p element in
    1723. 

  1723.                         scope, then act as if an end tag with the tag name p
    1724. 

  1724.                         had been seen. */
    1725. 

  1725.                         if($this->elementInScope('p')) {
    1726. 

  1726.                             $this->emitToken(array(
    1727. 

  1727.                                 'name' => 'p',
    1728. 

  1728.                                 'type' => HTML5::ENDTAG
    1729. 

  1729.                             ));
    1730. 

  1730.                         }
    1731. 

  1731. 

  1732.                         /* Insert an HTML element for the token, and set the
    1733. 

  1733.                         form element pointer to point to the element created. */
    1734. 

  1734.                         $element = $this->insertElement($token);
    1735. 

  1735.                         $this->form_pointer = $element;
    1736. 

  1736.                     }
    1737. 

  1737.                 break;
    1738. 

  1738. 

  1739.                 /* A start tag whose tag name is "li", "dd" or "dt" */
    1740. 

  1740.                 case 'li': case 'dd': case 'dt':
    1741. 

  1741.                     /* If the stack of open elements has a p  element in scope,
    1742. 

  1742.                     then act as if an end tag with the tag name p had been
    1743. 

  1743.                     seen. */
    1744. 

  1744.                     if($this->elementInScope('p')) {
    1745. 

  1745.                         $this->emitToken(array(
    1746. 

  1746.                             'name' => 'p',
    1747. 

  1747.                             'type' => HTML5::ENDTAG
    1748. 

  1748.                         ));
    1749. 

  1749.                     }
    1750. 

  1750. 

  1751.                     $stack_length = count($this->stack) - 1;
    1752. 

  1752. 

  1753.                     for($n = $stack_length; 0 <= $n; $n--) {
    1754. 

  1754.                         /* 1. Initialise node to be the current node (the
    1755. 

  1755.                         bottommost node of the stack). */
    1756. 

  1756.                         $stop = false;
    1757. 

  1757.                         $node = $this->stack[$n];
    1758. 

  1758.                         $cat  = $this->getElementCategory($node->tagName);
    1759. 

  1759. 

  1760.                         /* 2. If node is an li, dd or dt element, then pop all
    1761. 

  1761.                         the    nodes from the current node up to node, including
    1762. 

  1762.                         node, then stop this algorithm. */
    1763. 

  1763.                         if($token['name'] === $node->tagName ||    ($token['name'] !== 'li'
    1764. 

  1764.                         && ($node->tagName === 'dd' || $node->tagName === 'dt'))) {
    1765. 

  1765.                             for($x = $stack_length; $x >= $n ; $x--) {
    1766. 

  1766.                                 array_pop($this->stack);
    1767. 

  1767.                             }
    1768. 

  1768. 

  1769.                             break;
    1770. 

  1770.                         }
    1771. 

  1771. 

  1772.                         /* 3. If node is not in the formatting category, and is
    1773. 

  1773.                         not    in the phrasing category, and is not an address or
    1774. 

  1774.                         div element, then stop this algorithm. */
    1775. 

  1775.                         if($cat !== self::FORMATTING && $cat !== self::PHRASING &&
    1776. 

  1776.                         $node->tagName !== 'address' && $node->tagName !== 'div') {
    1777. 

  1777.                             break;
    1778. 

  1778.                         }
    1779. 

  1779.                     }
    1780. 

  1780. 

  1781.                     /* Finally, insert an HTML element with the same tag
    1782. 

  1782.                     name as the    token's. */
    1783. 

  1783.                     $this->insertElement($token);
    1784. 

  1784.                 break;
    1785. 

  1785. 

  1786.                 /* A start tag token whose tag name is "plaintext" */
    1787. 

  1787.                 case 'plaintext':
    1788. 

  1788.                     /* If the stack of open elements has a p  element in scope,
    1789. 

  1789.                     then act as if an end tag with the tag name p had been
    1790. 

  1790.                     seen. */
    1791. 

  1791.                     if($this->elementInScope('p')) {
    1792. 

  1792.                         $this->emitToken(array(
    1793. 

  1793.                             'name' => 'p',
    1794. 

  1794.                             'type' => HTML5::ENDTAG
    1795. 

  1795.                         ));
    1796. 

  1796.                     }
    1797. 

  1797. 

  1798.                     /* Insert an HTML element for the token. */
    1799. 

  1799.                     $this->insertElement($token);
    1800. 

  1800. 

  1801.                     return HTML5::PLAINTEXT;
    1802. 

  1802.                 break;
    1803. 

  1803. 

  1804.                 /* A start tag whose tag name is one of: "h1", "h2", "h3", "h4",
    1805. 

  1805.                 "h5", "h6" */
    1806. 

  1806.                 case 'h1': case 'h2': case 'h3': case 'h4': case 'h5': case 'h6':
    1807. 

  1807.                     /* If the stack of open elements has a p  element in scope,
    1808. 

  1808.                     then act as if an end tag with the tag name p had been seen. */
    1809. 

  1809.                     if($this->elementInScope('p')) {
    1810. 

  1810.                         $this->emitToken(array(
    1811. 

  1811.                             'name' => 'p',
    1812. 

  1812.                             'type' => HTML5::ENDTAG
    1813. 

  1813.                         ));
    1814. 

  1814.                     }
    1815. 

  1815. 

  1816.                     /* If the stack of open elements has in scope an element whose
    1817. 

  1817.                     tag name is one of "h1", "h2", "h3", "h4", "h5", or "h6", then
    1818. 

  1818.                     this is a parse error; pop elements from the stack until an
    1819. 

  1819.                     element with one of those tag names has been popped from the
    1820. 

  1820.                     stack. */
    1821. 

  1821.                     while($this->elementInScope(array('h1', 'h2', 'h3', 'h4', 'h5', 'h6'))) {
    1822. 

  1822.                         array_pop($this->stack);
    1823. 

  1823.                     }
    1824. 

  1824. 

  1825.                     /* Insert an HTML element for the token. */
    1826. 

  1826.                     $this->insertElement($token);
    1827. 

  1827.                 break;
    1828. 

  1828. 

  1829.                 /* A start tag whose tag name is "a" */
    1830. 

  1830.                 case 'a':
    1831. 

  1831.                     /* If the list of active formatting elements contains
    1832. 

  1832.                     an element whose tag name is "a" between the end of the
    1833. 

  1833.                     list and the last marker on the list (or the start of
    1834. 

  1834.                     the list if there is no marker on the list), then this
    1835. 

  1835.                     is a parse error; act as if an end tag with the tag name
    1836. 

  1836.                     "a" had been seen, then remove that element from the list
    1837. 

  1837.                     of active formatting elements and the stack of open
    1838. 

  1838.                     elements if the end tag didn't already remove it (it
    1839. 

  1839.                     might not have if the element is not in table scope). */
    1840. 

  1840.                     $leng = count($this->a_formatting);
    1841. 

  1841. 

  1842.                     for($n = $leng - 1; $n >= 0; $n--) {
    1843. 

  1843.                         if($this->a_formatting[$n] === self::MARKER) {
    1844. 

  1844.                             break;
    1845. 

  1845. 

  1846.                         } elseif($this->a_formatting[$n]->nodeName === 'a') {
    1847. 

  1847.                             $this->emitToken(array(
    1848. 

  1848.                                 'name' => 'a',
    1849. 

  1849.                                 'type' => HTML5::ENDTAG
    1850. 

  1850.                             ));
    1851. 

  1851.                             break;
    1852. 

  1852.                         }
    1853. 

  1853.                     }
    1854. 

  1854. 

  1855.                     /* Reconstruct the active formatting elements, if any. */
    1856. 

  1856.                     $this->reconstructActiveFormattingElements();
    1857. 

  1857. 

  1858.                     /* Insert an HTML element for the token. */
    1859. 

  1859.                     $el = $this->insertElement($token);
    1860. 

  1860. 

  1861.                     /* Add that element to the list of active formatting
    1862. 

  1862.                     elements. */
    1863. 

  1863.                     $this->a_formatting[] = $el;
    1864. 

  1864.                 break;
    1865. 

  1865. 

  1866.                 /* A start tag whose tag name is one of: "b", "big", "em", "font",
    1867. 

  1867.                 "i", "nobr", "s", "small", "strike", "strong", "tt", "u" */
    1868. 

  1868.                 case 'b': case 'big': case 'em': case 'font': case 'i':
    1869. 

  1869.                 case 'nobr': case 's': case 'small': case 'strike':
    1870. 

  1870.                 case 'strong': case 'tt': case 'u':
    1871. 

  1871.                     /* Reconstruct the active formatting elements, if any. */
    1872. 

  1872.                     $this->reconstructActiveFormattingElements();
    1873. 

  1873. 

  1874.                     /* Insert an HTML element for the token. */
    1875. 

  1875.                     $el = $this->insertElement($token);
    1876. 

  1876. 

  1877.                     /* Add that element to the list of active formatting
    1878. 

  1878.                     elements. */
    1879. 

  1879.                     $this->a_formatting[] = $el;
    1880. 

  1880.                 break;
    1881. 

  1881. 

  1882.                 /* A start tag token whose tag name is "button" */
    1883. 

  1883.                 case 'button':
    1884. 

  1884.                     /* If the stack of open elements has a button element in scope,
    1885. 

  1885.                     then this is a parse error; act as if an end tag with the tag
    1886. 

  1886.                     name "button" had been seen, then reprocess the token. (We don't
    1887. 

  1887.                     do that. Unnecessary.) */
    1888. 

  1888.                     if($this->elementInScope('button')) {
    1889. 

  1889.                         $this->inBody(array(
    1890. 

  1890.                             'name' => 'button',
    1891. 

  1891.                             'type' => HTML5::ENDTAG
    1892. 

  1892.                         ));
    1893. 

  1893.                     }
    1894. 

  1894. 

  1895.                     /* Reconstruct the active formatting elements, if any. */
    1896. 

  1896.                     $this->reconstructActiveFormattingElements();
    1897. 

  1897. 

  1898.                     /* Insert an HTML element for the token. */
    1899. 

  1899.                     $this->insertElement($token);
    1900. 

  1900. 

  1901.                     /* Insert a marker at the end of the list of active
    1902. 

  1902.                     formatting elements. */
    1903. 

  1903.                     $this->a_formatting[] = self::MARKER;
    1904. 

  1904.                 break;
    1905. 

  1905. 

  1906.                 /* A start tag token whose tag name is one of: "marquee", "object" */
    1907. 

  1907.                 case 'marquee': case 'object':
    1908. 

  1908.                     /* Reconstruct the active formatting elements, if any. */
    1909. 

  1909.                     $this->reconstructActiveFormattingElements();
    1910. 

  1910. 

  1911.                     /* Insert an HTML element for the token. */
    1912. 

  1912.                     $this->insertElement($token);
    1913. 

  1913. 

  1914.                     /* Insert a marker at the end of the list of active
    1915. 

  1915.                     formatting elements. */
    1916. 

  1916.                     $this->a_formatting[] = self::MARKER;
    1917. 

  1917.                 break;
    1918. 

  1918. 

  1919.                 /* A start tag token whose tag name is "xmp" */
    1920. 

  1920.                 case 'xmp':
    1921. 

  1921.                     /* Reconstruct the active formatting elements, if any. */
    1922. 

  1922.                     $this->reconstructActiveFormattingElements();
    1923. 

  1923. 

  1924.                     /* Insert an HTML element for the token. */
    1925. 

  1925.                     $this->insertElement($token);
    1926. 

  1926. 

  1927.                     /* Switch the content model flag to the CDATA state. */
    1928. 

  1928.                     return HTML5::CDATA;
    1929. 

  1929.                 break;
    1930. 

  1930. 

  1931.                 /* A start tag whose tag name is "table" */
    1932. 

  1932.                 case 'table':
    1933. 

  1933.                     /* If the stack of open elements has a p element in scope,
    1934. 

  1934.                     then act as if an end tag with the tag name p had been seen. */
    1935. 

  1935.                     if($this->elementInScope('p')) {
    1936. 

  1936.                         $this->emitToken(array(
    1937. 

  1937.                             'name' => 'p',
    1938. 

  1938.                             'type' => HTML5::ENDTAG
    1939. 

  1939.                         ));
    1940. 

  1940.                     }
    1941. 

  1941. 

  1942.                     /* Insert an HTML element for the token. */
    1943. 

  1943.                     $this->insertElement($token);
    1944. 

  1944. 

  1945.                     /* Change the insertion mode to "in table". */
    1946. 

  1946.                     $this->mode = self::IN_TABLE;
    1947. 

  1947.                 break;
    1948. 

  1948. 

  1949.                 /* A start tag whose tag name is one of: "area", "basefont",
    1950. 

  1950.                 "bgsound", "br", "embed", "img", "param", "spacer", "wbr" */
    1951. 

  1951.                 case 'area': case 'basefont': case 'bgsound': case 'br':
    1952. 

  1952.                 case 'embed': case 'img': case 'param': case 'spacer':
    1953. 

  1953.                 case 'wbr':
    1954. 

  1954.                     /* Reconstruct the active formatting elements, if any. */
    1955. 

  1955.                     $this->reconstructActiveFormattingElements();
    1956. 

  1956. 

  1957.                     /* Insert an HTML element for the token. */
    1958. 

  1958.                     $this->insertElement($token);
    1959. 

  1959. 

  1960.                     /* Immediately pop the current node off the stack of open elements. */
    1961. 

  1961.                     array_pop($this->stack);
    1962. 

  1962.                 break;
    1963. 

  1963. 

  1964.                 /* A start tag whose tag name is "hr" */
    1965. 

  1965.                 case 'hr':
    1966. 

  1966.                     /* If the stack of open elements has a p element in scope,
    1967. 

  1967.                     then act as if an end tag with the tag name p had been seen. */
    1968. 

  1968.                     if($this->elementInScope('p')) {
    1969. 

  1969.                         $this->emitToken(array(
    1970. 

  1970.                             'name' => 'p',
    1971. 

  1971.                             'type' => HTML5::ENDTAG
    1972. 

  1972.                         ));
    1973. 

  1973.                     }
    1974. 

  1974. 

  1975.                     /* Insert an HTML element for the token. */
    1976. 

  1976.                     $this->insertElement($token);
    1977. 

  1977. 

  1978.                     /* Immediately pop the current node off the stack of open elements. */
    1979. 

  1979.                     array_pop($this->stack);
    1980. 

  1980.                 break;
    1981. 

  1981. 

  1982.                 /* A start tag whose tag name is "image" */
    1983. 

  1983.                 case 'image':
    1984. 

  1984.                     /* Parse error. Change the token's tag name to "img" and
    1985. 

  1985.                     reprocess it. (Don't ask.) */
    1986. 

  1986.                     $token['name'] = 'img';
    1987. 

  1987.                     return $this->inBody($token);
    1988. 

  1988.                 break;
    1989. 

  1989. 

  1990.                 /* A start tag whose tag name is "input" */
    1991. 

  1991.                 case 'input':
    1992. 

  1992.                     /* Reconstruct the active formatting elements, if any. */
    1993. 

  1993.                     $this->reconstructActiveFormattingElements();
    1994. 

  1994. 

  1995.                     /* Insert an input element for the token. */
    1996. 

  1996.                     $element = $this->insertElement($token, false);
    1997. 

  1997. 

  1998.                     /* If the form element pointer is not null, then associate the
    1999. 

  1999.                     input element with the form element pointed to by the form
    2000. 

  2000.                     element pointer. */
    2001. 

  2001.                     $this->form_pointer !== null
    2002. 

  2002.                         ? $this->form_pointer->appendChild($element)
    2003. 

  2003.                         : end($this->stack)->appendChild($element);
    2004. 

  2004. 

  2005.                     /* Pop that input element off the stack of open elements. */
    2006. 

  2006.                     array_pop($this->stack);
    2007. 

  2007.                 break;
    2008. 

  2008. 

  2009.                 /* A start tag whose tag name is "isindex" */
    2010. 

  2010.                 case 'isindex':
    2011. 

  2011.                     /* Parse error. */
    2012. 

  2012.                     // w/e
    2013. 

  2013. 

  2014.                     /* If the form element pointer is not null,
    2015. 

  2015.                     then ignore the token. */
    2016. 

  2016.                     if($this->form_pointer === null) {
    2017. 

  2017.                         /* Act as if a start tag token with the tag name "form" had
    2018. 

  2018.                         been seen. */
    2019. 

  2019.                         $this->inBody(array(
    2020. 

  2020.                             'name' => 'body',
    2021. 

  2021.                             'type' => HTML5::STARTTAG,
    2022. 

  2022.                             'attr' => array()
    2023. 

  2023.                         ));
    2024. 

  2024. 

  2025.                         /* Act as if a start tag token with the tag name "hr" had
    2026. 

  2026.                         been seen. */
    2027. 

  2027.                         $this->inBody(array(
    2028. 

  2028.                             'name' => 'hr',
    2029. 

  2029.                             'type' => HTML5::STARTTAG,
    2030. 

  2030.                             'attr' => array()
    2031. 

  2031.                         ));
    2032. 

  2032. 

  2033.                         /* Act as if a start tag token with the tag name "p" had
    2034. 

  2034.                         been seen. */
    2035. 

  2035.                         $this->inBody(array(
    2036. 

  2036.                             'name' => 'p',
    2037. 

  2037.                             'type' => HTML5::STARTTAG,
    2038. 

  2038.                             'attr' => array()
    2039. 

  2039.                         ));
    2040. 

  2040. 

  2041.                         /* Act as if a start tag token with the tag name "label"
    2042. 

  2042.                         had been seen. */
    2043. 

  2043.                         $this->inBody(array(
    2044. 

  2044.                             'name' => 'label',
    2045. 

  2045.                             'type' => HTML5::STARTTAG,
    2046. 

  2046.                             'attr' => array()
    2047. 

  2047.                         ));
    2048. 

  2048. 

  2049.                         /* Act as if a stream of character tokens had been seen. */
    2050. 

  2050.                         $this->insertText('This is a searchable index. '.
    2051. 

  2051.                         'Insert your search keywords here: ');
    2052. 

  2052. 

  2053.                         /* Act as if a start tag token with the tag name "input"
    2054. 

  2054.                         had been seen, with all the attributes from the "isindex"
    2055. 

  2055.                         token, except with the "name" attribute set to the value
    2056. 

  2056.                         "isindex" (ignoring any explicit "name" attribute). */
    2057. 

  2057.                         $attr = $token['attr'];
    2058. 

  2058.                         $attr[] = array('name' => 'name', 'value' => 'isindex');
    2059. 

  2059. 

  2060.                         $this->inBody(array(
    2061. 

  2061.                             'name' => 'input',
    2062. 

  2062.                             'type' => HTML5::STARTTAG,
    2063. 

  2063.                             'attr' => $attr
    2064. 

  2064.                         ));
    2065. 

  2065. 

  2066.                         /* Act as if a stream of character tokens had been seen
    2067. 

  2067.                         (see below for what they should say). */
    2068. 

  2068.                         $this->insertText('This is a searchable index. '.
    2069. 

  2069.                         'Insert your search keywords here: ');
    2070. 

  2070. 

  2071.                         /* Act as if an end tag token with the tag name "label"
    2072. 

  2072.                         had been seen. */
    2073. 

  2073.                         $this->inBody(array(
    2074. 

  2074.                             'name' => 'label',
    2075. 

  2075.                             'type' => HTML5::ENDTAG
    2076. 

  2076.                         ));
    2077. 

  2077. 

  2078.                         /* Act as if an end tag token with the tag name "p" had
    2079. 

  2079.                         been seen. */
    2080. 

  2080.                         $this->inBody(array(
    2081. 

  2081.                             'name' => 'p',
    2082. 

  2082.                             'type' => HTML5::ENDTAG
    2083. 

  2083.                         ));
    2084. 

  2084. 

  2085.                         /* Act as if a start tag token with the tag name "hr" had
    2086. 

  2086.                         been seen. */
    2087. 

  2087.                         $this->inBody(array(
    2088. 

  2088.                             'name' => 'hr',
    2089. 

  2089.                             'type' => HTML5::ENDTAG
    2090. 

  2090.                         ));
    2091. 

  2091. 

  2092.                         /* Act as if an end tag token with the tag name "form" had
    2093. 

  2093.                         been seen. */
    2094. 

  2094.                         $this->inBody(array(
    2095. 

  2095.                             'name' => 'form',
    2096. 

  2096.                             'type' => HTML5::ENDTAG
    2097. 

  2097.                         ));
    2098. 

  2098.                     }
    2099. 

  2099.                 break;
    2100. 

  2100. 

  2101.                 /* A start tag whose tag name is "textarea" */
    2102. 

  2102.                 case 'textarea':
    2103. 

  2103.                     $this->insertElement($token);
    2104. 

  2104. 

  2105.                     /* Switch the tokeniser's content model flag to the
    2106. 

  2106.                     RCDATA state. */
    2107. 

  2107.                     return HTML5::RCDATA;
    2108. 

  2108.                 break;
    2109. 

  2109. 

  2110.                 /* A start tag whose tag name is one of: "iframe", "noembed",
    2111. 

  2111.                 "noframes" */
    2112. 

  2112.                 case 'iframe': case 'noembed': case 'noframes':
    2113. 

  2113.                     $this->insertElement($token);
    2114. 

  2114. 

  2115.                     /* Switch the tokeniser's content model flag to the CDATA state. */
    2116. 

  2116.                     return HTML5::CDATA;
    2117. 

  2117.                 break;
    2118. 

  2118. 

  2119.                 /* A start tag whose tag name is "select" */
    2120. 

  2120.                 case 'select':
    2121. 

  2121.                     /* Reconstruct the active formatting elements, if any. */
    2122. 

  2122.                     $this->reconstructActiveFormattingElements();
    2123. 

  2123. 

  2124.                     /* Insert an HTML element for the token. */
    2125. 

  2125.                     $this->insertElement($token);
    2126. 

  2126. 

  2127.                     /* Change the insertion mode to "in select". */
    2128. 

  2128.                     $this->mode = self::IN_SELECT;
    2129. 

  2129.                 break;
    2130. 

  2130. 

  2131.                 /* A start or end tag whose tag name is one of: "caption", "col",
    2132. 

  2132.                 "colgroup", "frame", "frameset", "head", "option", "optgroup",
    2133. 

  2133.                 "tbody", "td", "tfoot", "th", "thead", "tr". */
    2134. 

  2134.                 case 'caption': case 'col': case 'colgroup': case 'frame':
    2135. 

  2135.                 case 'frameset': case 'head': case 'option': case 'optgroup':
    2136. 

  2136.                 case 'tbody': case 'td': case 'tfoot': case 'th': case 'thead':
    2137. 

  2137.                 case 'tr':
    2138. 

  2138.                     // Parse error. Ignore the token.
    2139. 

  2139.                 break;
    2140. 

  2140. 

  2141.                 /* A start or end tag whose tag name is one of: "event-source",
    2142. 

  2142.                 "section", "nav", "article", "aside", "header", "footer",
    2143. 

  2143.                 "datagrid", "command" */
    2144. 

  2144.                 case 'event-source': case 'section': case 'nav': case 'article':
    2145. 

  2145.                 case 'aside': case 'header': case 'footer': case 'datagrid':
    2146. 

  2146.                 case 'command':
    2147. 

  2147.                     // Work in progress!
    2148. 

  2148.                 break;
    2149. 

  2149. 

  2150.                 /* A start tag token not covered by the previous entries */
    2151. 

  2151.                 default:
    2152. 

  2152.                     /* Reconstruct the active formatting elements, if any. */
    2153. 

  2153.                     $this->reconstructActiveFormattingElements();
    2154. 

  2154. 

  2155.                     $this->insertElement($token, true, true);
    2156. 

  2156.                 break;
    2157. 

  2157.             }
    2158. 

  2158.             break;
    2159. 

  2159. 

  2160.             case HTML5::ENDTAG:
    2161. 

  2161.             switch($token['name']) {
    2162. 

  2162.                 /* An end tag with the tag name "body" */
    2163. 

  2163.                 case 'body':
    2164. 

  2164.                     /* If the second element in the stack of open elements is
    2165. 

  2165.                     not a body element, this is a parse error. Ignore the token.
    2166. 

  2166.                     (innerHTML case) */
    2167. 

  2167.                     if(count($this->stack) < 2 || $this->stack[1]->nodeName !== 'body') {
    2168. 

  2168.                         // Ignore.
    2169. 

  2169. 

  2170.                     /* If the current node is not the body element, then this
    2171. 

  2171.                     is a parse error. */
    2172. 

  2172.                     } elseif(end($this->stack)->nodeName !== 'body') {
    2173. 

  2173.                         // Parse error.
    2174. 

  2174.                     }
    2175. 

  2175. 

  2176.                     /* Change the insertion mode to "after body". */
    2177. 

  2177.                     $this->mode = self::AFTER_BODY;
    2178. 

  2178.                 break;
    2179. 

  2179. 

  2180.                 /* An end tag with the tag name "html" */
    2181. 

  2181.                 case 'html':
    2182. 

  2182.                     /* Act as if an end tag with tag name "body" had been seen,
    2183. 

  2183.                     then, if that token wasn't ignored, reprocess the current
    2184. 

  2184.                     token. */
    2185. 

  2185.                     $this->inBody(array(
    2186. 

  2186.                         'name' => 'body',
    2187. 

  2187.                         'type' => HTML5::ENDTAG
    2188. 

  2188.                     ));
    2189. 

  2189. 

  2190.                     return $this->afterBody($token);
    2191. 

  2191.                 break;
    2192. 

  2192. 

  2193.                 /* An end tag whose tag name is one of: "address", "blockquote",
    2194. 

  2194.                 "center", "dir", "div", "dl", "fieldset", "listing", "menu",
    2195. 

  2195.                 "ol", "pre", "ul" */
    2196. 

  2196.                 case 'address': case 'blockquote': case 'center': case 'dir':
    2197. 

  2197.                 case 'div': case 'dl': case 'fieldset': case 'listing':
    2198. 

  2198.                 case 'menu': case 'ol': case 'pre': case 'ul':
    2199. 

  2199.                     /* If the stack of open elements has an element in scope
    2200. 

  2200.                     with the same tag name as that of the token, then generate
    2201. 

  2201.                     implied end tags. */
    2202. 

  2202.                     if($this->elementInScope($token['name'])) {
    2203. 

  2203.                         $this->generateImpliedEndTags();
    2204. 

  2204. 

  2205.                         /* Now, if the current node is not an element with
    2206. 

  2206.                         the same tag name as that of the token, then this
    2207. 

  2207.                         is a parse error. */
    2208. 

  2208.                         // w/e
    2209. 

  2209. 

  2210.                         /* If the stack of open elements has an element in
    2211. 

  2211.                         scope with the same tag name as that of the token,
    2212. 

  2212.                         then pop elements from this stack until an element
    2213. 

  2213.                         with that tag name has been popped from the stack. */
    2214. 

  2214.                         for($n = count($this->stack) - 1; $n >= 0; $n--) {
    2215. 

  2215.                             if($this->stack[$n]->nodeName === $token['name']) {
    2216. 

  2216.                                 $n = -1;
    2217. 

  2217.                             }
    2218. 

  2218. 

  2219.                             array_pop($this->stack);
    2220. 

  2220.                         }
    2221. 

  2221.                     }
    2222. 

  2222.                 break;
    2223. 

  2223. 

  2224.                 /* An end tag whose tag name is "form" */
    2225. 

  2225.                 case 'form':
    2226. 

  2226.                     /* If the stack of open elements has an element in scope
    2227. 

  2227.                     with the same tag name as that of the token, then generate
    2228. 

  2228.                     implied    end tags. */
    2229. 

  2229.                     if($this->elementInScope($token['name'])) {
    2230. 

  2230.                         $this->generateImpliedEndTags();
    2231. 

  2231. 

  2232.                     } 
    2233. 

  2233. 

  2234.                     if(end($this->stack)->nodeName !== $token['name']) {
    2235. 

  2235.                         /* Now, if the current node is not an element with the
    2236. 

  2236.                         same tag name as that of the token, then this is a parse
    2237. 

  2237.                         error. */
    2238. 

  2238.                         // w/e
    2239. 

  2239. 

  2240.                     } else {
    2241. 

  2241.                         /* Otherwise, if the current node is an element with
    2242. 

  2242.                         the same tag name as that of the token pop that element
    2243. 

  2243.                         from the stack. */
    2244. 

  2244.                         array_pop($this->stack);
    2245. 

  2245.                     }
    2246. 

  2246. 

  2247.                     /* In any case, set the form element pointer to null. */
    2248. 

  2248.                     $this->form_pointer = null;
    2249. 

  2249.                 break;
    2250. 

  2250. 

  2251.                 /* An end tag whose tag name is "p" */
    2252. 

  2252.                 case 'p':
    2253. 

  2253.                     /* If the stack of open elements has a p element in scope,
    2254. 

  2254.                     then generate implied end tags, except for p elements. */
    2255. 

  2255.                     if($this->elementInScope('p')) {
    2256. 

  2256.                         $this->generateImpliedEndTags(array('p'));
    2257. 

  2257. 

  2258.                         /* If the current node is not a p element, then this is
    2259. 

  2259.                         a parse error. */
    2260. 

  2260.                         // k
    2261. 

  2261. 

  2262.                         /* If the stack of open elements has a p element in
    2263. 

  2263.                         scope, then pop elements from this stack until the stack
    2264. 

  2264.                         no longer has a p element in scope. */
    2265. 

  2265.                         for($n = count($this->stack) - 1; $n >= 0; $n--) {
    2266. 

  2266.                             if($this->elementInScope('p')) {
    2267. 

  2267.                                 array_pop($this->stack);
    2268. 

  2268. 

  2269.                             } else {
    2270. 

  2270.                                 break;
    2271. 

  2271.                             }
    2272. 

  2272.                         }
    2273. 

  2273.                     }
    2274. 

  2274.                 break;
    2275. 

  2275. 

  2276.                 /* An end tag whose tag name is "dd", "dt", or "li" */
    2277. 

  2277.                 case 'dd': case 'dt': case 'li':
    2278. 

  2278.                     /* If the stack of open elements has an element in scope
    2279. 

  2279.                     whose tag name matches the tag name of the token, then
    2280. 

  2280.                     generate implied end tags, except for elements with the
    2281. 

  2281.                     same tag name as the token. */
    2282. 

  2282.                     if($this->elementInScope($token['name'])) {
    2283. 

  2283.                         $this->generateImpliedEndTags(array($token['name']));
    2284. 

  2284. 

  2285.                         /* If the current node is not an element with the same
    2286. 

  2286.                         tag name as the token, then this is a parse error. */
    2287. 

  2287.                         // w/e
    2288. 

  2288. 

  2289.                         /* If the stack of open elements has an element in scope
    2290. 

  2290.                         whose tag name matches the tag name of the token, then
    2291. 

  2291.                         pop elements from this stack until an element with that
    2292. 

  2292.                         tag name has been popped from the stack. */
    2293. 

  2293.                         for($n = count($this->stack) - 1; $n >= 0; $n--) {
    2294. 

  2294.                             if($this->stack[$n]->nodeName === $token['name']) {
    2295. 

  2295.                                 $n = -1;
    2296. 

  2296.                             }
    2297. 

  2297. 

  2298.                             array_pop($this->stack);
    2299. 

  2299.                         }
    2300. 

  2300.                     }
    2301. 

  2301.                 break;
    2302. 

  2302. 

  2303.                 /* An end tag whose tag name is one of: "h1", "h2", "h3", "h4",
    2304. 

  2304.                 "h5", "h6" */
    2305. 

  2305.                 case 'h1': case 'h2': case 'h3': case 'h4': case 'h5': case 'h6':
    2306. 

  2306.                     $elements = array('h1', 'h2', 'h3', 'h4', 'h5', 'h6');
    2307. 

  2307. 

  2308.                     /* If the stack of open elements has in scope an element whose
    2309. 

  2309.                     tag name is one of "h1", "h2", "h3", "h4", "h5", or "h6", then
    2310. 

  2310.                     generate implied end tags. */
    2311. 

  2311.                     if($this->elementInScope($elements)) {
    2312. 

  2312.                         $this->generateImpliedEndTags();
    2313. 

  2313. 

  2314.                         /* Now, if the current node is not an element with the same
    2315. 

  2315.                         tag name as that of the token, then this is a parse error. */
    2316. 

  2316.                         // w/e
    2317. 

  2317. 

  2318.                         /* If the stack of open elements has in scope an element
    2319. 

  2319.                         whose tag name is one of "h1", "h2", "h3", "h4", "h5", or
    2320. 

  2320.                         "h6", then pop elements from the stack until an element
    2321. 

  2321.                         with one of those tag names has been popped from the stack. */
    2322. 

  2322.                         while($this->elementInScope($elements)) {
    2323. 

  2323.                             array_pop($this->stack);
    2324. 

  2324.                         }
    2325. 

  2325.                     }
    2326. 

  2326.                 break;
    2327. 

  2327. 

  2328.                 /* An end tag whose tag name is one of: "a", "b", "big", "em",
    2329. 

  2329.                 "font", "i", "nobr", "s", "small", "strike", "strong", "tt", "u" */
    2330. 

  2330.                 case 'a': case 'b': case 'big': case 'em': case 'font':
    2331. 

  2331.                 case 'i': case 'nobr': case 's': case 'small': case 'strike':
    2332. 

  2332.                 case 'strong': case 'tt': case 'u':
    2333. 

  2333.                     /* 1. Let the formatting element be the last element in
    2334. 

  2334.                     the list of active formatting elements that:
    2335. 

  2335.                         * is between the end of the list and the last scope
    2336. 

  2336.                         marker in the list, if any, or the start of the list
    2337. 

  2337.                         otherwise, and
    2338. 

  2338.                         * has the same tag name as the token.
    2339. 

  2339.                     */
    2340. 

  2340.                     while(true) {
    2341. 

  2341.                         for($a = count($this->a_formatting) - 1; $a >= 0; $a--) {
    2342. 

  2342.                             if($this->a_formatting[$a] === self::MARKER) {
    2343. 

  2343.                                 break;
    2344. 

  2344. 

  2345.                             } elseif($this->a_formatting[$a]->tagName === $token['name']) {
    2346. 

  2346.                                 $formatting_element = $this->a_formatting[$a];
    2347. 

  2347.                                 $in_stack = in_array($formatting_element, $this->stack, true);
    2348. 

  2348.                                 $fe_af_pos = $a;
    2349. 

  2349.                                 break;
    2350. 

  2350.                             }
    2351. 

  2351.                         }
    2352. 

  2352. 

  2353.                         /* If there is no such node, or, if that node is
    2354. 

  2354.                         also in the stack of open elements but the element
    2355. 

  2355.                         is not in scope, then this is a parse error. Abort
    2356. 

  2356.                         these steps. The token is ignored. */
    2357. 

  2357.                         if(!isset($formatting_element) || ($in_stack &&
    2358. 

  2358.                         !$this->elementInScope($token['name']))) {
    2359. 

  2359.                             break;
    2360. 

  2360. 

  2361.                         /* Otherwise, if there is such a node, but that node
    2362. 

  2362.                         is not in the stack of open elements, then this is a
    2363. 

  2363.                         parse error; remove the element from the list, and
    2364. 

  2364.                         abort these steps. */
    2365. 

  2365.                         } elseif(isset($formatting_element) && !$in_stack) {
    2366. 

  2366.                             unset($this->a_formatting[$fe_af_pos]);
    2367. 

  2367.                             $this->a_formatting = array_merge($this->a_formatting);
    2368. 

  2368.                             break;
    2369. 

  2369.                         }
    2370. 

  2370. 

  2371.                         /* 2. Let the furthest block be the topmost node in the
    2372. 

  2372.                         stack of open elements that is lower in the stack
    2373. 

  2373.                         than the formatting element, and is not an element in
    2374. 

  2374.                         the phrasing or formatting categories. There might
    2375. 

  2375.                         not be one. */
    2376. 

  2376.                         $fe_s_pos = array_search($formatting_element, $this->stack, true);
    2377. 

  2377.                         $length = count($this->stack);
    2378. 

  2378. 

  2379.                         for($s = $fe_s_pos + 1; $s < $length; $s++) {
    2380. 

  2380.                             $category = $this->getElementCategory($this->stack[$s]->nodeName);
    2381. 

  2381. 

  2382.                             if($category !== self::PHRASING && $category !== self::FORMATTING) {
    2383. 

  2383.                                 $furthest_block = $this->stack[$s];
    2384. 

  2384.                             }
    2385. 

  2385.                         }
    2386. 

  2386. 

  2387.                         /* 3. If there is no furthest block, then the UA must
    2388. 

  2388.                         skip the subsequent steps and instead just pop all
    2389. 

  2389.                         the nodes from the bottom of the stack of open
    2390. 

  2390.                         elements, from the current node up to the formatting
    2391. 

  2391.                         element, and remove the formatting element from the
    2392. 

  2392.                         list of active formatting elements. */
    2393. 

  2393.                         if(!isset($furthest_block)) {
    2394. 

  2394.                             for($n = $length - 1; $n >= $fe_s_pos; $n--) {
    2395. 

  2395.                                 array_pop($this->stack);
    2396. 

  2396.                             }
    2397. 

  2397. 

  2398.                             unset($this->a_formatting[$fe_af_pos]);
    2399. 

  2399.                             $this->a_formatting = array_merge($this->a_formatting);
    2400. 

  2400.                             break;
    2401. 

  2401.                         }
    2402. 

  2402. 

  2403.                         /* 4. Let the common ancestor be the element
    2404. 

  2404.                         immediately above the formatting element in the stack
    2405. 

  2405.                         of open elements. */
    2406. 

  2406.                         $common_ancestor = $this->stack[$fe_s_pos - 1];
    2407. 

  2407. 

  2408.                         /* 5. If the furthest block has a parent node, then
    2409. 

  2409.                         remove the furthest block from its parent node. */
    2410. 

  2410.                         if($furthest_block->parentNode !== null) {
    2411. 

  2411.                             $furthest_block->parentNode->removeChild($furthest_block);
    2412. 

  2412.                         }
    2413. 

  2413. 

  2414.                         /* 6. Let a bookmark note the position of the
    2415. 

  2415.                         formatting element in the list of active formatting
    2416. 

  2416.                         elements relative to the elements on either side
    2417. 

  2417.                         of it in the list. */
    2418. 

  2418.                         $bookmark = $fe_af_pos;
    2419. 

  2419. 

  2420.                         /* 7. Let node and last node  be the furthest block.
    2421. 

  2421.                         Follow these steps: */
    2422. 

  2422.                         $node = $furthest_block;
    2423. 

  2423.                         $last_node = $furthest_block;
    2424. 

  2424. 

  2425.                         while(true) {
    2426. 

  2426.                             for($n = array_search($node, $this->stack, true) - 1; $n >= 0; $n--) {
    2427. 

  2427.                                 /* 7.1 Let node be the element immediately
    2428. 

  2428.                                 prior to node in the stack of open elements. */
    2429. 

  2429.                                 $node = $this->stack[$n];
    2430. 

  2430. 

  2431.                                 /* 7.2 If node is not in the list of active
    2432. 

  2432.                                 formatting elements, then remove node from
    2433. 

  2433.                                 the stack of open elements and then go back
    2434. 

  2434.                                 to step 1. */
    2435. 

  2435.                                 if(!in_array($node, $this->a_formatting, true)) {
    2436. 

  2436.                                     unset($this->stack[$n]);
    2437. 

  2437.                                     $this->stack = array_merge($this->stack);
    2438. 

  2438. 

  2439.                                 } else {
    2440. 

  2440.                                     break;
    2441. 

  2441.                                 }
    2442. 

  2442.                             }
    2443. 

  2443. 

  2444.                             /* 7.3 Otherwise, if node is the formatting
    2445. 

  2445.                             element, then go to the next step in the overall
    2446. 

  2446.                             algorithm. */
    2447. 

  2447.                             if($node === $formatting_element) {
    2448. 

  2448.                                 break;
    2449. 

  2449. 

  2450.                             /* 7.4 Otherwise, if last node is the furthest
    2451. 

  2451.                             block, then move the aforementioned bookmark to
    2452. 

  2452.                             be immediately after the node in the list of
    2453. 

  2453.                             active formatting elements. */
    2454. 

  2454.                             } elseif($last_node === $furthest_block) {
    2455. 

  2455.                                 $bookmark = array_search($node, $this->a_formatting, true) + 1;
    2456. 

  2456.                             }
    2457. 

  2457. 

  2458.                             /* 7.5 If node has any children, perform a
    2459. 

  2459.                             shallow clone of node, replace the entry for
    2460. 

  2460.                             node in the list of active formatting elements
    2461. 

  2461.                             with an entry for the clone, replace the entry
    2462. 

  2462.                             for node in the stack of open elements with an
    2463. 

  2463.                             entry for the clone, and let node be the clone. */
    2464. 

  2464.                             if($node->hasChildNodes()) {
    2465. 

  2465.                                 $clone = $node->cloneNode();
    2466. 

  2466.                                 $s_pos = array_search($node, $this->stack, true);
    2467. 

  2467.                                 $a_pos = array_search($node, $this->a_formatting, true);
    2468. 

  2468. 

  2469.                                 $this->stack[$s_pos] = $clone;
    2470. 

  2470.                                 $this->a_formatting[$a_pos] = $clone;
    2471. 

  2471.                                 $node = $clone;
    2472. 

  2472.                             }
    2473. 

  2473. 

  2474.                             /* 7.6 Insert last node into node, first removing
    2475. 

  2475.                             it from its previous parent node if any. */
    2476. 

  2476.                             if($last_node->parentNode !== null) {
    2477. 

  2477.                                 $last_node->parentNode->removeChild($last_node);
    2478. 

  2478.                             }
    2479. 

  2479. 

  2480.                             $node->appendChild($last_node);
    2481. 

  2481. 

  2482.                             /* 7.7 Let last node be node. */
    2483. 

  2483.                             $last_node = $node;
    2484. 

  2484.                         }
    2485. 

  2485. 

  2486.                         /* 8. Insert whatever last node ended up being in
    2487. 

  2487.                         the previous step into the common ancestor node,
    2488. 

  2488.                         first removing it from its previous parent node if
    2489. 

  2489.                         any. */
    2490. 

  2490.                         if($last_node->parentNode !== null) {
    2491. 

  2491.                             $last_node->parentNode->removeChild($last_node);
    2492. 

  2492.                         }
    2493. 

  2493. 

  2494.                         $common_ancestor->appendChild($last_node);
    2495. 

  2495. 

  2496.                         /* 9. Perform a shallow clone of the formatting
    2497. 

  2497.                         element. */
    2498. 

  2498.                         $clone = $formatting_element->cloneNode();
    2499. 

  2499. 

  2500.                         /* 10. Take all of the child nodes of the furthest
    2501. 

  2501.                         block and append them to the clone created in the
    2502. 

  2502.                         last step. */
    2503. 

  2503.                         while($furthest_block->hasChildNodes()) {
    2504. 

  2504.                             $child = $furthest_block->firstChild;
    2505. 

  2505.                             $furthest_block->removeChild($child);
    2506. 

  2506.                             $clone->appendChild($child);
    2507. 

  2507.                         }
    2508. 

  2508. 

  2509.                         /* 11. Append that clone to the furthest block. */
    2510. 

  2510.                         $furthest_block->appendChild($clone);
    2511. 

  2511. 

  2512.                         /* 12. Remove the formatting element from the list
    2513. 

  2513.                         of active formatting elements, and insert the clone
    2514. 

  2514.                         into the list of active formatting elements at the
    2515. 

  2515.                         position of the aforementioned bookmark. */
    2516. 

  2516.                         $fe_af_pos = array_search($formatting_element, $this->a_formatting, true);
    2517. 

  2517.                         unset($this->a_formatting[$fe_af_pos]);
    2518. 

  2518.                         $this->a_formatting = array_merge($this->a_formatting);
    2519. 

  2519. 

  2520.                         $af_part1 = array_slice($this->a_formatting, 0, $bookmark - 1);
    2521. 

  2521.                         $af_part2 = array_slice($this->a_formatting, $bookmark, count($this->a_formatting));
    2522. 

  2522.                         $this->a_formatting = array_merge($af_part1, array($clone), $af_part2);
    2523. 

  2523. 

  2524.                         /* 13. Remove the formatting element from the stack
    2525. 

  2525.                         of open elements, and insert the clone into the stack
    2526. 

  2526.                         of open elements immediately after (i.e. in a more
    2527. 

  2527.                         deeply nested position than) the position of the
    2528. 

  2528.                         furthest block in that stack. */
    2529. 

  2529.                         $fe_s_pos = array_search($formatting_element, $this->stack, true);
    2530. 

  2530.                         $fb_s_pos = array_search($furthest_block, $this->stack, true);
    2531. 

  2531.                         unset($this->stack[$fe_s_pos]);
    2532. 

  2532. 

  2533.                         $s_part1 = array_slice($this->stack, 0, $fb_s_pos);
    2534. 

  2534.                         $s_part2 = array_slice($this->stack, $fb_s_pos + 1, count($this->stack));
    2535. 

  2535.                         $this->stack = array_merge($s_part1, array($clone), $s_part2);
    2536. 

  2536. 

  2537.                         /* 14. Jump back to step 1 in this series of steps. */
    2538. 

  2538.                         unset($formatting_element, $fe_af_pos, $fe_s_pos, $furthest_block);
    2539. 

  2539.                     }
    2540. 

  2540.                 break;
    2541. 

  2541. 

  2542.                 /* An end tag token whose tag name is one of: "button",
    2543. 

  2543.                 "marquee", "object" */
    2544. 

  2544.                 case 'button': case 'marquee': case 'object':
    2545. 

  2545.                     /* If the stack of open elements has an element in scope whose
    2546. 

  2546.                     tag name matches the tag name of the token, then generate implied
    2547. 

  2547.                     tags. */
    2548. 

  2548.                     if($this->elementInScope($token['name'])) {
    2549. 

  2549.                         $this->generateImpliedEndTags();
    2550. 

  2550. 

  2551.                         /* Now, if the current node is not an element with the same
    2552. 

  2552.                         tag name as the token, then this is a parse error. */
    2553. 

  2553.                         // k
    2554. 

  2554. 

  2555.                         /* Now, if the stack of open elements has an element in scope
    2556. 

  2556.                         whose tag name matches the tag name of the token, then pop
    2557. 

  2557.                         elements from the stack until that element has been popped from
    2558. 

  2558.                         the stack, and clear the list of active formatting elements up
    2559. 

  2559.                         to the last marker. */
    2560. 

  2560.                         for($n = count($this->stack) - 1; $n >= 0; $n--) {
    2561. 

  2561.                             if($this->stack[$n]->nodeName === $token['name']) {
    2562. 

  2562.                                 $n = -1;
    2563. 

  2563.                             }
    2564. 

  2564. 

  2565.                             array_pop($this->stack);
    2566. 

  2566.                         }
    2567. 

  2567. 

  2568.                         $marker = end(array_keys($this->a_formatting, self::MARKER, true));
    2569. 

  2569. 

  2570.                         for($n = count($this->a_formatting) - 1; $n > $marker; $n--) {
    2571. 

  2571.                             array_pop($this->a_formatting);
    2572. 

  2572.                         }
    2573. 

  2573.                     }
    2574. 

  2574.                 break;
    2575. 

  2575. 

  2576.                 /* Or an end tag whose tag name is one of: "area", "basefont",
    2577. 

  2577.                 "bgsound", "br", "embed", "hr", "iframe", "image", "img",
    2578. 

  2578.                 "input", "isindex", "noembed", "noframes", "param", "select",
    2579. 

  2579.                 "spacer", "table", "textarea", "wbr" */
    2580. 

  2580.                 case 'area': case 'basefont': case 'bgsound': case 'br':
    2581. 

  2581.                 case 'embed': case 'hr': case 'iframe': case 'image':
    2582. 

  2582.                 case 'img': case 'input': case 'isindex': case 'noembed':
    2583. 

  2583.                 case 'noframes': case 'param': case 'select': case 'spacer':
    2584. 

  2584.                 case 'table': case 'textarea': case 'wbr':
    2585. 

  2585.                     // Parse error. Ignore the token.
    2586. 

  2586.                 break;
    2587. 

  2587. 

  2588.                 /* An end tag token not covered by the previous entries */
    2589. 

  2589.                 default:
    2590. 

  2590.                     for($n = count($this->stack) - 1; $n >= 0; $n--) {
    2591. 

  2591.                         /* Initialise node to be the current node (the bottommost
    2592. 

  2592.                         node of the stack). */
    2593. 

  2593.                         $node = end($this->stack);
    2594. 

  2594. 

  2595.                         /* If node has the same tag name as the end tag token,
    2596. 

  2596.                         then: */
    2597. 

  2597.                         if($token['name'] === $node->nodeName) {
    2598. 

  2598.                             /* Generate implied end tags. */
    2599. 

  2599.                             $this->generateImpliedEndTags();
    2600. 

  2600. 

  2601.                             /* If the tag name of the end tag token does not
    2602. 

  2602.                             match the tag name of the current node, this is a
    2603. 

  2603.                             parse error. */
    2604. 

  2604.                             // k
    2605. 

  2605. 

  2606.                             /* Pop all the nodes from the current node up to
    2607. 

  2607.                             node, including node, then stop this algorithm. */
    2608. 

  2608.                             for($x = count($this->stack) - $n; $x >= $n; $x--) {
    2609. 

  2609.                                 array_pop($this->stack);
    2610. 

  2610.                             }
    2611. 

  2611.                                     
    2612. 

  2612.                         } else {
    2613. 

  2613.                             $category = $this->getElementCategory($node);
    2614. 

  2614. 

  2615.                             if($category !== self::SPECIAL && $category !== self::SCOPING) {
    2616. 

  2616.                                 /* Otherwise, if node is in neither the formatting
    2617. 

  2617.                                 category nor the phrasing category, then this is a
    2618. 

  2618.                                 parse error. Stop this algorithm. The end tag token
    2619. 

  2619.                                 is ignored. */
    2620. 

  2620.                                 return false;
    2621. 

  2621.                             }
    2622. 

  2622.                         }
    2623. 

  2623.                     }
    2624. 

  2624.                 break;
    2625. 

  2625.             }
    2626. 

  2626.             break;
    2627. 

  2627.         }
    2628. 

  2628.     }
    2629. 

  2629. 

  2630.     private function inTable($token) {
    2631. 

  2631.         $clear = array('html', 'table');
    2632. 

  2632. 

  2633.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    2634. 

  2634.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    2635. 

  2635.         or U+0020 SPACE */
    2636. 

  2636.         if($token['type'] === HTML5::CHARACTR &&
    2637. 

  2637.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) {
    2638. 

  2638.             /* Append the character to the current node. */
    2639. 

  2639.             $text = $this->dom->createTextNode($token['data']);
    2640. 

  2640.             end($this->stack)->appendChild($text);
    2641. 

  2641. 

  2642.         /* A comment token */
    2643. 

  2643.         } elseif($token['type'] === HTML5::COMMENT) {
    2644. 

  2644.             /* Append a Comment node to the current node with the data
    2645. 

  2645.             attribute set to the data given in the comment token. */
    2646. 

  2646.             $comment = $this->dom->createComment($token['data']);
    2647. 

  2647.             end($this->stack)->appendChild($comment);
    2648. 

  2648. 

  2649.         /* A start tag whose tag name is "caption" */
    2650. 

  2650.         } elseif($token['type'] === HTML5::STARTTAG &&
    2651. 

  2651.         $token['name'] === 'caption') {
    2652. 

  2652.             /* Clear the stack back to a table context. */
    2653. 

  2653.             $this->clearStackToTableContext($clear);
    2654. 

  2654. 

  2655.             /* Insert a marker at the end of the list of active
    2656. 

  2656.             formatting elements. */
    2657. 

  2657.             $this->a_formatting[] = self::MARKER;
    2658. 

  2658. 

  2659.             /* Insert an HTML element for the token, then switch the
    2660. 

  2660.             insertion mode to "in caption". */
    2661. 

  2661.             $this->insertElement($token);
    2662. 

  2662.             $this->mode = self::IN_CAPTION;
    2663. 

  2663. 

  2664.         /* A start tag whose tag name is "colgroup" */
    2665. 

  2665.         } elseif($token['type'] === HTML5::STARTTAG &&
    2666. 

  2666.         $token['name'] === 'colgroup') {
    2667. 

  2667.             /* Clear the stack back to a table context. */
    2668. 

  2668.             $this->clearStackToTableContext($clear);
    2669. 

  2669. 

  2670.             /* Insert an HTML element for the token, then switch the
    2671. 

  2671.             insertion mode to "in column group". */
    2672. 

  2672.             $this->insertElement($token);
    2673. 

  2673.             $this->mode = self::IN_CGROUP;
    2674. 

  2674. 

  2675.         /* A start tag whose tag name is "col" */
    2676. 

  2676.         } elseif($token['type'] === HTML5::STARTTAG &&
    2677. 

  2677.         $token['name'] === 'col') {
    2678. 

  2678.             $this->inTable(array(
    2679. 

  2679.                 'name' => 'colgroup',
    2680. 

  2680.                 'type' => HTML5::STARTTAG,
    2681. 

  2681.                 'attr' => array()
    2682. 

  2682.             ));
    2683. 

  2683. 

  2684.             $this->inColumnGroup($token);
    2685. 

  2685. 

  2686.         /* A start tag whose tag name is one of: "tbody", "tfoot", "thead" */
    2687. 

  2687.         } elseif($token['type'] === HTML5::STARTTAG && in_array($token['name'],
    2688. 

  2688.         array('tbody', 'tfoot', 'thead'))) {
    2689. 

  2689.             /* Clear the stack back to a table context. */
    2690. 

  2690.             $this->clearStackToTableContext($clear);
    2691. 

  2691. 

  2692.             /* Insert an HTML element for the token, then switch the insertion
    2693. 

  2693.             mode to "in table body". */
    2694. 

  2694.             $this->insertElement($token);
    2695. 

  2695.             $this->mode = self::IN_TBODY;
    2696. 

  2696. 

  2697.         /* A start tag whose tag name is one of: "td", "th", "tr" */
    2698. 

  2698.         } elseif($token['type'] === HTML5::STARTTAG &&
    2699. 

  2699.         in_array($token['name'], array('td', 'th', 'tr'))) {
    2700. 

  2700.             /* Act as if a start tag token with the tag name "tbody" had been
    2701. 

  2701.             seen, then reprocess the current token. */
    2702. 

  2702.             $this->inTable(array(
    2703. 

  2703.                 'name' => 'tbody',
    2704. 

  2704.                 'type' => HTML5::STARTTAG,
    2705. 

  2705.                 'attr' => array()
    2706. 

  2706.             ));
    2707. 

  2707. 

  2708.             return $this->inTableBody($token);
    2709. 

  2709. 

  2710.         /* A start tag whose tag name is "table" */
    2711. 

  2711.         } elseif($token['type'] === HTML5::STARTTAG &&
    2712. 

  2712.         $token['name'] === 'table') {
    2713. 

  2713.             /* Parse error. Act as if an end tag token with the tag name "table"
    2714. 

  2714.             had been seen, then, if that token wasn't ignored, reprocess the
    2715. 

  2715.             current token. */
    2716. 

  2716.             $this->inTable(array(
    2717. 

  2717.                 'name' => 'table',
    2718. 

  2718.                 'type' => HTML5::ENDTAG
    2719. 

  2719.             ));
    2720. 

  2720. 

  2721.             return $this->mainPhase($token);
    2722. 

  2722. 

  2723.         /* An end tag whose tag name is "table" */
    2724. 

  2724.         } elseif($token['type'] === HTML5::ENDTAG &&
    2725. 

  2725.         $token['name'] === 'table') {
    2726. 

  2726.             /* If the stack of open elements does not have an element in table
    2727. 

  2727.             scope with the same tag name as the token, this is a parse error.
    2728. 

  2728.             Ignore the token. (innerHTML case) */
    2729. 

  2729.             if(!$this->elementInScope($token['name'], true)) {
    2730. 

  2730.                 return false;
    2731. 

  2731. 

  2732.             /* Otherwise: */
    2733. 

  2733.             } else {
    2734. 

  2734.                 /* Generate implied end tags. */
    2735. 

  2735.                 $this->generateImpliedEndTags();
    2736. 

  2736. 

  2737.                 /* Now, if the current node is not a table element, then this
    2738. 

  2738.                 is a parse error. */
    2739. 

  2739.                 // w/e
    2740. 

  2740. 

  2741.                 /* Pop elements from this stack until a table element has been
    2742. 

  2742.                 popped from the stack. */
    2743. 

  2743.                 while(true) {
    2744. 

  2744.                     $current = end($this->stack)->nodeName;
    2745. 

  2745.                     array_pop($this->stack);
    2746. 

  2746. 

  2747.                     if($current === 'table') {
    2748. 

  2748.                         break;
    2749. 

  2749.                     }
    2750. 

  2750.                 }
    2751. 

  2751. 

  2752.                 /* Reset the insertion mode appropriately. */
    2753. 

  2753.                 $this->resetInsertionMode();
    2754. 

  2754.             }
    2755. 

  2755. 

  2756.         /* An end tag whose tag name is one of: "body", "caption", "col",
    2757. 

  2757.         "colgroup", "html", "tbody", "td", "tfoot", "th", "thead", "tr" */
    2758. 

  2758.         } elseif($token['type'] === HTML5::ENDTAG && in_array($token['name'],
    2759. 

  2759.         array('body', 'caption', 'col', 'colgroup', 'html', 'tbody', 'td',
    2760. 

  2760.         'tfoot', 'th', 'thead', 'tr'))) {
    2761. 

  2761.             // Parse error. Ignore the token.
    2762. 

  2762. 

  2763.         /* Anything else */
    2764. 

  2764.         } else {
    2765. 

  2765.             /* Parse error. Process the token as if the insertion mode was "in
    2766. 

  2766.             body", with the following exception: */
    2767. 

  2767. 

  2768.             /* If the current node is a table, tbody, tfoot, thead, or tr
    2769. 

  2769.             element, then, whenever a node would be inserted into the current
    2770. 

  2770.             node, it must instead be inserted into the foster parent element. */
    2771. 

  2771.             if(in_array(end($this->stack)->nodeName,
    2772. 

  2772.             array('table', 'tbody', 'tfoot', 'thead', 'tr'))) {
    2773. 

  2773.                 /* The foster parent element is the parent element of the last
    2774. 

  2774.                 table element in the stack of open elements, if there is a
    2775. 

  2775.                 table element and it has such a parent element. If there is no
    2776. 

  2776.                 table element in the stack of open elements (innerHTML case),
    2777. 

  2777.                 then the foster parent element is the first element in the
    2778. 

  2778.                 stack of open elements (the html  element). Otherwise, if there
    2779. 

  2779.                 is a table element in the stack of open elements, but the last
    2780. 

  2780.                 table element in the stack of open elements has no parent, or
    2781. 

  2781.                 its parent node is not an element, then the foster parent
    2782. 

  2782.                 element is the element before the last table element in the
    2783. 

  2783.                 stack of open elements. */
    2784. 

  2784.                 for($n = count($this->stack) - 1; $n >= 0; $n--) {
    2785. 

  2785.                     if($this->stack[$n]->nodeName === 'table') {
    2786. 

  2786.                         $table = $this->stack[$n];
    2787. 

  2787.                         break;
    2788. 

  2788.                     }
    2789. 

  2789.                 }
    2790. 

  2790. 

  2791.                 if(isset($table) && $table->parentNode !== null) {
    2792. 

  2792.                     $this->foster_parent = $table->parentNode;
    2793. 

  2793. 

  2794.                 } elseif(!isset($table)) {
    2795. 

  2795.                     $this->foster_parent = $this->stack[0];
    2796. 

  2796. 

  2797.                 } elseif(isset($table) && ($table->parentNode === null ||
    2798. 

  2798.                 $table->parentNode->nodeType !== XML_ELEMENT_NODE)) {
    2799. 

  2799.                     $this->foster_parent = $this->stack[$n - 1];
    2800. 

  2800.                 }
    2801. 

  2801.             }
    2802. 

  2802. 

  2803.             $this->inBody($token);
    2804. 

  2804.         }
    2805. 

  2805.     }
    2806. 

  2806. 

  2807.     private function inCaption($token) {
    2808. 

  2808.         /* An end tag whose tag name is "caption" */
    2809. 

  2809.         if($token['type'] === HTML5::ENDTAG && $token['name'] === 'caption') {
    2810. 

  2810.             /* If the stack of open elements does not have an element in table
    2811. 

  2811.             scope with the same tag name as the token, this is a parse error.
    2812. 

  2812.             Ignore the token. (innerHTML case) */
    2813. 

  2813.             if(!$this->elementInScope($token['name'], true)) {
    2814. 

  2814.                 // Ignore
    2815. 

  2815. 

  2816.             /* Otherwise: */
    2817. 

  2817.             } else {
    2818. 

  2818.                 /* Generate implied end tags. */
    2819. 

  2819.                 $this->generateImpliedEndTags();
    2820. 

  2820. 

  2821.                 /* Now, if the current node is not a caption element, then this
    2822. 

  2822.                 is a parse error. */
    2823. 

  2823.                 // w/e
    2824. 

  2824. 

  2825.                 /* Pop elements from this stack until a caption element has
    2826. 

  2826.                 been popped from the stack. */
    2827. 

  2827.                 while(true) {
    2828. 

  2828.                     $node = end($this->stack)->nodeName;
    2829. 

  2829.                     array_pop($this->stack);
    2830. 

  2830. 

  2831.                     if($node === 'caption') {
    2832. 

  2832.                         break;
    2833. 

  2833.                     }
    2834. 

  2834.                 }
    2835. 

  2835. 

  2836.                 /* Clear the list of active formatting elements up to the last
    2837. 

  2837.                 marker. */
    2838. 

  2838.                 $this->clearTheActiveFormattingElementsUpToTheLastMarker();
    2839. 

  2839. 

  2840.                 /* Switch the insertion mode to "in table". */
    2841. 

  2841.                 $this->mode = self::IN_TABLE;
    2842. 

  2842.             }
    2843. 

  2843. 

  2844.         /* A start tag whose tag name is one of: "caption", "col", "colgroup",
    2845. 

  2845.         "tbody", "td", "tfoot", "th", "thead", "tr", or an end tag whose tag
    2846. 

  2846.         name is "table" */
    2847. 

  2847.         } elseif(($token['type'] === HTML5::STARTTAG && in_array($token['name'],
    2848. 

  2848.         array('caption', 'col', 'colgroup', 'tbody', 'td', 'tfoot', 'th',
    2849. 

  2849.         'thead', 'tr'))) || ($token['type'] === HTML5::ENDTAG &&
    2850. 

  2850.         $token['name'] === 'table')) {
    2851. 

  2851.             /* Parse error. Act as if an end tag with the tag name "caption"
    2852. 

  2852.             had been seen, then, if that token wasn't ignored, reprocess the
    2853. 

  2853.             current token. */
    2854. 

  2854.             $this->inCaption(array(
    2855. 

  2855.                 'name' => 'caption',
    2856. 

  2856.                 'type' => HTML5::ENDTAG
    2857. 

  2857.             ));
    2858. 

  2858. 

  2859.             return $this->inTable($token);
    2860. 

  2860. 

  2861.         /* An end tag whose tag name is one of: "body", "col", "colgroup",
    2862. 

  2862.         "html", "tbody", "td", "tfoot", "th", "thead", "tr" */
    2863. 

  2863.         } elseif($token['type'] === HTML5::ENDTAG && in_array($token['name'],
    2864. 

  2864.         array('body', 'col', 'colgroup', 'html', 'tbody', 'tfoot', 'th',
    2865. 

  2865.         'thead', 'tr'))) {
    2866. 

  2866.             // Parse error. Ignore the token.
    2867. 

  2867. 

  2868.         /* Anything else */
    2869. 

  2869.         } else {
    2870. 

  2870.             /* Process the token as if the insertion mode was "in body". */
    2871. 

  2871.             $this->inBody($token);
    2872. 

  2872.         }
    2873. 

  2873.     }
    2874. 

  2874. 

  2875.     private function inColumnGroup($token) {
    2876. 

  2876.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    2877. 

  2877.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    2878. 

  2878.         or U+0020 SPACE */
    2879. 

  2879.         if($token['type'] === HTML5::CHARACTR &&
    2880. 

  2880.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) {
    2881. 

  2881.             /* Append the character to the current node. */
    2882. 

  2882.             $text = $this->dom->createTextNode($token['data']);
    2883. 

  2883.             end($this->stack)->appendChild($text);
    2884. 

  2884. 

  2885.         /* A comment token */
    2886. 

  2886.         } elseif($token['type'] === HTML5::COMMENT) {
    2887. 

  2887.             /* Append a Comment node to the current node with the data
    2888. 

  2888.             attribute set to the data given in the comment token. */
    2889. 

  2889.             $comment = $this->dom->createComment($token['data']);
    2890. 

  2890.             end($this->stack)->appendChild($comment);
    2891. 

  2891. 

  2892.         /* A start tag whose tag name is "col" */
    2893. 

  2893.         } elseif($token['type'] === HTML5::STARTTAG && $token['name'] === 'col') {
    2894. 

  2894.             /* Insert a col element for the token. Immediately pop the current
    2895. 

  2895.             node off the stack of open elements. */
    2896. 

  2896.             $this->insertElement($token);
    2897. 

  2897.             array_pop($this->stack);
    2898. 

  2898. 

  2899.         /* An end tag whose tag name is "colgroup" */
    2900. 

  2900.         } elseif($token['type'] === HTML5::ENDTAG &&
    2901. 

  2901.         $token['name'] === 'colgroup') {
    2902. 

  2902.             /* If the current node is the root html element, then this is a
    2903. 

  2903.             parse error, ignore the token. (innerHTML case) */
    2904. 

  2904.             if(end($this->stack)->nodeName === 'html') {
    2905. 

  2905.                 // Ignore
    2906. 

  2906. 

  2907.             /* Otherwise, pop the current node (which will be a colgroup
    2908. 

  2908.             element) from the stack of open elements. Switch the insertion
    2909. 

  2909.             mode to "in table". */
    2910. 

  2910.             } else {
    2911. 

  2911.                 array_pop($this->stack);
    2912. 

  2912.                 $this->mode = self::IN_TABLE;
    2913. 

  2913.             }
    2914. 

  2914. 

  2915.         /* An end tag whose tag name is "col" */
    2916. 

  2916.         } elseif($token['type'] === HTML5::ENDTAG && $token['name'] === 'col') {
    2917. 

  2917.             /* Parse error. Ignore the token. */
    2918. 

  2918. 

  2919.         /* Anything else */
    2920. 

  2920.         } else {
    2921. 

  2921.             /* Act as if an end tag with the tag name "colgroup" had been seen,
    2922. 

  2922.             and then, if that token wasn't ignored, reprocess the current token. */
    2923. 

  2923.             $this->inColumnGroup(array(
    2924. 

  2924.                 'name' => 'colgroup',
    2925. 

  2925.                 'type' => HTML5::ENDTAG
    2926. 

  2926.             ));
    2927. 

  2927. 

  2928.             return $this->inTable($token);
    2929. 

  2929.         }
    2930. 

  2930.     }
    2931. 

  2931. 

  2932.     private function inTableBody($token) {
    2933. 

  2933.         $clear = array('tbody', 'tfoot', 'thead', 'html');
    2934. 

  2934. 

  2935.         /* A start tag whose tag name is "tr" */
    2936. 

  2936.         if($token['type'] === HTML5::STARTTAG && $token['name'] === 'tr') {
    2937. 

  2937.             /* Clear the stack back to a table body context. */
    2938. 

  2938.             $this->clearStackToTableContext($clear);
    2939. 

  2939. 

  2940.             /* Insert a tr element for the token, then switch the insertion
    2941. 

  2941.             mode to "in row". */
    2942. 

  2942.             $this->insertElement($token);
    2943. 

  2943.             $this->mode = self::IN_ROW;
    2944. 

  2944. 

  2945.         /* A start tag whose tag name is one of: "th", "td" */
    2946. 

  2946.         } elseif($token['type'] === HTML5::STARTTAG &&
    2947. 

  2947.         ($token['name'] === 'th' ||    $token['name'] === 'td')) {
    2948. 

  2948.             /* Parse error. Act as if a start tag with the tag name "tr" had
    2949. 

  2949.             been seen, then reprocess the current token. */
    2950. 

  2950.             $this->inTableBody(array(
    2951. 

  2951.                 'name' => 'tr',
    2952. 

  2952.                 'type' => HTML5::STARTTAG,
    2953. 

  2953.                 'attr' => array()
    2954. 

  2954.             ));
    2955. 

  2955. 

  2956.             return $this->inRow($token);
    2957. 

  2957. 

  2958.         /* An end tag whose tag name is one of: "tbody", "tfoot", "thead" */
    2959. 

  2959.         } elseif($token['type'] === HTML5::ENDTAG &&
    2960. 

  2960.         in_array($token['name'], array('tbody', 'tfoot', 'thead'))) {
    2961. 

  2961.             /* If the stack of open elements does not have an element in table
    2962. 

  2962.             scope with the same tag name as the token, this is a parse error.
    2963. 

  2963.             Ignore the token. */
    2964. 

  2964.             if(!$this->elementInScope($token['name'], true)) {
    2965. 

  2965.                 // Ignore
    2966. 

  2966. 

  2967.             /* Otherwise: */
    2968. 

  2968.             } else {
    2969. 

  2969.                 /* Clear the stack back to a table body context. */
    2970. 

  2970.                 $this->clearStackToTableContext($clear);
    2971. 

  2971. 

  2972.                 /* Pop the current node from the stack of open elements. Switch
    2973. 

  2973.                 the insertion mode to "in table". */
    2974. 

  2974.                 array_pop($this->stack);
    2975. 

  2975.                 $this->mode = self::IN_TABLE;
    2976. 

  2976.             }
    2977. 

  2977. 

  2978.         /* A start tag whose tag name is one of: "caption", "col", "colgroup",
    2979. 

  2979.         "tbody", "tfoot", "thead", or an end tag whose tag name is "table" */
    2980. 

  2980.         } elseif(($token['type'] === HTML5::STARTTAG && in_array($token['name'],
    2981. 

  2981.         array('caption', 'col', 'colgroup', 'tbody', 'tfoor', 'thead'))) ||
    2982. 

  2982.         ($token['type'] === HTML5::STARTTAG && $token['name'] === 'table')) {
    2983. 

  2983.             /* If the stack of open elements does not have a tbody, thead, or
    2984. 

  2984.             tfoot element in table scope, this is a parse error. Ignore the
    2985. 

  2985.             token. (innerHTML case) */
    2986. 

  2986.             if(!$this->elementInScope(array('tbody', 'thead', 'tfoot'), true)) {
    2987. 

  2987.                 // Ignore.
    2988. 

  2988. 

  2989.             /* Otherwise: */
    2990. 

  2990.             } else {
    2991. 

  2991.                 /* Clear the stack back to a table body context. */
    2992. 

  2992.                 $this->clearStackToTableContext($clear);
    2993. 

  2993. 

  2994.                 /* Act as if an end tag with the same tag name as the current
    2995. 

  2995.                 node ("tbody", "tfoot", or "thead") had been seen, then
    2996. 

  2996.                 reprocess the current token. */
    2997. 

  2997.                 $this->inTableBody(array(
    2998. 

  2998.                     'name' => end($this->stack)->nodeName,
    2999. 

  2999.                     'type' => HTML5::ENDTAG
    3000. 

  3000.                 ));
    3001. 

  3001. 

  3002.                 return $this->mainPhase($token);
    3003. 

  3003.             }
    3004. 

  3004. 

  3005.         /* An end tag whose tag name is one of: "body", "caption", "col",
    3006. 

  3006.         "colgroup", "html", "td", "th", "tr" */
    3007. 

  3007.         } elseif($token['type'] === HTML5::ENDTAG && in_array($token['name'],
    3008. 

  3008.         array('body', 'caption', 'col', 'colgroup', 'html', 'td', 'th', 'tr'))) {
    3009. 

  3009.             /* Parse error. Ignore the token. */
    3010. 

  3010. 

  3011.         /* Anything else */
    3012. 

  3012.         } else {
    3013. 

  3013.             /* Process the token as if the insertion mode was "in table". */
    3014. 

  3014.             $this->inTable($token);
    3015. 

  3015.         }
    3016. 

  3016.     }
    3017. 

  3017. 

  3018.     private function inRow($token) {
    3019. 

  3019.         $clear = array('tr', 'html');
    3020. 

  3020. 

  3021.         /* A start tag whose tag name is one of: "th", "td" */
    3022. 

  3022.         if($token['type'] === HTML5::STARTTAG &&
    3023. 

  3023.         ($token['name'] === 'th' || $token['name'] === 'td')) {
    3024. 

  3024.             /* Clear the stack back to a table row context. */
    3025. 

  3025.             $this->clearStackToTableContext($clear);
    3026. 

  3026. 

  3027.             /* Insert an HTML element for the token, then switch the insertion
    3028. 

  3028.             mode to "in cell". */
    3029. 

  3029.             $this->insertElement($token);
    3030. 

  3030.             $this->mode = self::IN_CELL;
    3031. 

  3031. 

  3032.             /* Insert a marker at the end of the list of active formatting
    3033. 

  3033.             elements. */
    3034. 

  3034.             $this->a_formatting[] = self::MARKER;
    3035. 

  3035. 

  3036.         /* An end tag whose tag name is "tr" */
    3037. 

  3037.         } elseif($token['type'] === HTML5::ENDTAG && $token['name'] === 'tr') {
    3038. 

  3038.             /* If the stack of open elements does not have an element in table
    3039. 

  3039.             scope with the same tag name as the token, this is a parse error.
    3040. 

  3040.             Ignore the token. (innerHTML case) */
    3041. 

  3041.             if(!$this->elementInScope($token['name'], true)) {
    3042. 

  3042.                 // Ignore.
    3043. 

  3043. 

  3044.             /* Otherwise: */
    3045. 

  3045.             } else {
    3046. 

  3046.                 /* Clear the stack back to a table row context. */
    3047. 

  3047.                 $this->clearStackToTableContext($clear);
    3048. 

  3048. 

  3049.                 /* Pop the current node (which will be a tr element) from the
    3050. 

  3050.                 stack of open elements. Switch the insertion mode to "in table
    3051. 

  3051.                 body". */
    3052. 

  3052.                 array_pop($this->stack);
    3053. 

  3053.                 $this->mode = self::IN_TBODY;
    3054. 

  3054.             }
    3055. 

  3055. 

  3056.         /* A start tag whose tag name is one of: "caption", "col", "colgroup",
    3057. 

  3057.         "tbody", "tfoot", "thead", "tr" or an end tag whose tag name is "table" */
    3058. 

  3058.         } elseif($token['type'] === HTML5::STARTTAG && in_array($token['name'],
    3059. 

  3059.         array('caption', 'col', 'colgroup', 'tbody', 'tfoot', 'thead', 'tr'))) {
    3060. 

  3060.             /* Act as if an end tag with the tag name "tr" had been seen, then,
    3061. 

  3061.             if that token wasn't ignored, reprocess the current token. */
    3062. 

  3062.             $this->inRow(array(
    3063. 

  3063.                 'name' => 'tr',
    3064. 

  3064.                 'type' => HTML5::ENDTAG
    3065. 

  3065.             ));
    3066. 

  3066. 

  3067.             return $this->inCell($token);
    3068. 

  3068. 

  3069.         /* An end tag whose tag name is one of: "tbody", "tfoot", "thead" */
    3070. 

  3070.         } elseif($token['type'] === HTML5::ENDTAG &&
    3071. 

  3071.         in_array($token['name'], array('tbody', 'tfoot', 'thead'))) {
    3072. 

  3072.             /* If the stack of open elements does not have an element in table
    3073. 

  3073.             scope with the same tag name as the token, this is a parse error.
    3074. 

  3074.             Ignore the token. */
    3075. 

  3075.             if(!$this->elementInScope($token['name'], true)) {
    3076. 

  3076.                 // Ignore.
    3077. 

  3077. 

  3078.             /* Otherwise: */
    3079. 

  3079.             } else {
    3080. 

  3080.                 /* Otherwise, act as if an end tag with the tag name "tr" had
    3081. 

  3081.                 been seen, then reprocess the current token. */
    3082. 

  3082.                 $this->inRow(array(
    3083. 

  3083.                     'name' => 'tr',
    3084. 

  3084.                     'type' => HTML5::ENDTAG
    3085. 

  3085.                 ));
    3086. 

  3086. 

  3087.                 return $this->inCell($token);
    3088. 

  3088.             }
    3089. 

  3089. 

  3090.         /* An end tag whose tag name is one of: "body", "caption", "col",
    3091. 

  3091.         "colgroup", "html", "td", "th" */
    3092. 

  3092.         } elseif($token['type'] === HTML5::ENDTAG && in_array($token['name'],
    3093. 

  3093.         array('body', 'caption', 'col', 'colgroup', 'html', 'td', 'th', 'tr'))) {
    3094. 

  3094.             /* Parse error. Ignore the token. */
    3095. 

  3095. 

  3096.         /* Anything else */
    3097. 

  3097.         } else {
    3098. 

  3098.             /* Process the token as if the insertion mode was "in table". */
    3099. 

  3099.             $this->inTable($token);
    3100. 

  3100.         }
    3101. 

  3101.     }
    3102. 

  3102. 

  3103.     private function inCell($token) {
    3104. 

  3104.         /* An end tag whose tag name is one of: "td", "th" */
    3105. 

  3105.         if($token['type'] === HTML5::ENDTAG &&
    3106. 

  3106.         ($token['name'] === 'td' || $token['name'] === 'th')) {
    3107. 

  3107.             /* If the stack of open elements does not have an element in table
    3108. 

  3108.             scope with the same tag name as that of the token, then this is a
    3109. 

  3109.             parse error and the token must be ignored. */
    3110. 

  3110.             if(!$this->elementInScope($token['name'], true)) {
    3111. 

  3111.                 // Ignore.
    3112. 

  3112. 

  3113.             /* Otherwise: */
    3114. 

  3114.             } else {
    3115. 

  3115.                 /* Generate implied end tags, except for elements with the same
    3116. 

  3116.                 tag name as the token. */
    3117. 

  3117.                 $this->generateImpliedEndTags(array($token['name']));
    3118. 

  3118. 

  3119.                 /* Now, if the current node is not an element with the same tag
    3120. 

  3120.                 name as the token, then this is a parse error. */
    3121. 

  3121.                 // k
    3122. 

  3122. 

  3123.                 /* Pop elements from this stack until an element with the same
    3124. 

  3124.                 tag name as the token has been popped from the stack. */
    3125. 

  3125.                 while(true) {
    3126. 

  3126.                     $node = end($this->stack)->nodeName;
    3127. 

  3127.                     array_pop($this->stack);
    3128. 

  3128. 

  3129.                     if($node === $token['name']) {
    3130. 

  3130.                         break;
    3131. 

  3131.                     }
    3132. 

  3132.                 }
    3133. 

  3133. 

  3134.                 /* Clear the list of active formatting elements up to the last
    3135. 

  3135.                 marker. */
    3136. 

  3136.                 $this->clearTheActiveFormattingElementsUpToTheLastMarker();
    3137. 

  3137. 

  3138.                 /* Switch the insertion mode to "in row". (The current node
    3139. 

  3139.                 will be a tr element at this point.) */
    3140. 

  3140.                 $this->mode = self::IN_ROW;
    3141. 

  3141.             }
    3142. 

  3142. 

  3143.         /* A start tag whose tag name is one of: "caption", "col", "colgroup",
    3144. 

  3144.         "tbody", "td", "tfoot", "th", "thead", "tr" */
    3145. 

  3145.         } elseif($token['type'] === HTML5::STARTTAG && in_array($token['name'],
    3146. 

  3146.         array('caption', 'col', 'colgroup', 'tbody', 'td', 'tfoot', 'th',
    3147. 

  3147.         'thead', 'tr'))) {
    3148. 

  3148.             /* If the stack of open elements does not have a td or th element
    3149. 

  3149.             in table scope, then this is a parse error; ignore the token.
    3150. 

  3150.             (innerHTML case) */
    3151. 

  3151.             if(!$this->elementInScope(array('td', 'th'), true)) {
    3152. 

  3152.                 // Ignore.
    3153. 

  3153. 

  3154.             /* Otherwise, close the cell (see below) and reprocess the current
    3155. 

  3155.             token. */
    3156. 

  3156.             } else {
    3157. 

  3157.                 $this->closeCell();
    3158. 

  3158.                 return $this->inRow($token);
    3159. 

  3159.             }
    3160. 

  3160. 

  3161.         /* A start tag whose tag name is one of: "caption", "col", "colgroup",
    3162. 

  3162.         "tbody", "td", "tfoot", "th", "thead", "tr" */
    3163. 

  3163.         } elseif($token['type'] === HTML5::STARTTAG && in_array($token['name'],
    3164. 

  3164.         array('caption', 'col', 'colgroup', 'tbody', 'td', 'tfoot', 'th',
    3165. 

  3165.         'thead', 'tr'))) {
    3166. 

  3166.             /* If the stack of open elements does not have a td or th element
    3167. 

  3167.             in table scope, then this is a parse error; ignore the token.
    3168. 

  3168.             (innerHTML case) */
    3169. 

  3169.             if(!$this->elementInScope(array('td', 'th'), true)) {
    3170. 

  3170.                 // Ignore.
    3171. 

  3171. 

  3172.             /* Otherwise, close the cell (see below) and reprocess the current
    3173. 

  3173.             token. */
    3174. 

  3174.             } else {
    3175. 

  3175.                 $this->closeCell();
    3176. 

  3176.                 return $this->inRow($token);
    3177. 

  3177.             }
    3178. 

  3178. 

  3179.         /* An end tag whose tag name is one of: "body", "caption", "col",
    3180. 

  3180.         "colgroup", "html" */
    3181. 

  3181.         } elseif($token['type'] === HTML5::ENDTAG && in_array($token['name'],
    3182. 

  3182.         array('body', 'caption', 'col', 'colgroup', 'html'))) {
    3183. 

  3183.             /* Parse error. Ignore the token. */
    3184. 

  3184. 

  3185.         /* An end tag whose tag name is one of: "table", "tbody", "tfoot",
    3186. 

  3186.         "thead", "tr" */
    3187. 

  3187.         } elseif($token['type'] === HTML5::ENDTAG && in_array($token['name'],
    3188. 

  3188.         array('table', 'tbody', 'tfoot', 'thead', 'tr'))) {
    3189. 

  3189.             /* If the stack of open elements does not have an element in table
    3190. 

  3190.             scope with the same tag name as that of the token (which can only
    3191. 

  3191.             happen for "tbody", "tfoot" and "thead", or, in the innerHTML case),
    3192. 

  3192.             then this is a parse error and the token must be ignored. */
    3193. 

  3193.             if(!$this->elementInScope($token['name'], true)) {
    3194. 

  3194.                 // Ignore.
    3195. 

  3195. 

  3196.             /* Otherwise, close the cell (see below) and reprocess the current
    3197. 

  3197.             token. */
    3198. 

  3198.             } else {
    3199. 

  3199.                 $this->closeCell();
    3200. 

  3200.                 return $this->inRow($token);
    3201. 

  3201.             }
    3202. 

  3202. 

  3203.         /* Anything else */
    3204. 

  3204.         } else {
    3205. 

  3205.             /* Process the token as if the insertion mode was "in body". */
    3206. 

  3206.             $this->inBody($token);
    3207. 

  3207.         }
    3208. 

  3208.     }
    3209. 

  3209. 

  3210.     private function inSelect($token) {
    3211. 

  3211.         /* Handle the token as follows: */
    3212. 

  3212. 

  3213.         /* A character token */
    3214. 

  3214.         if($token['type'] === HTML5::CHARACTR) {
    3215. 

  3215.             /* Append the token's character to the current node. */
    3216. 

  3216.             $this->insertText($token['data']);
    3217. 

  3217. 

  3218.         /* A comment token */
    3219. 

  3219.         } elseif($token['type'] === HTML5::COMMENT) {
    3220. 

  3220.             /* Append a Comment node to the current node with the data
    3221. 

  3221.             attribute set to the data given in the comment token. */
    3222. 

  3222.             $this->insertComment($token['data']);
    3223. 

  3223. 

  3224.         /* A start tag token whose tag name is "option" */
    3225. 

  3225.         } elseif($token['type'] === HTML5::STARTTAG &&
    3226. 

  3226.         $token['name'] === 'option') {
    3227. 

  3227.             /* If the current node is an option element, act as if an end tag
    3228. 

  3228.             with the tag name "option" had been seen. */
    3229. 

  3229.             if(end($this->stack)->nodeName === 'option') {
    3230. 

  3230.                 $this->inSelect(array(
    3231. 

  3231.                     'name' => 'option',
    3232. 

  3232.                     'type' => HTML5::ENDTAG
    3233. 

  3233.                 ));
    3234. 

  3234.             }
    3235. 

  3235. 

  3236.             /* Insert an HTML element for the token. */
    3237. 

  3237.             $this->insertElement($token);
    3238. 

  3238. 

  3239.         /* A start tag token whose tag name is "optgroup" */
    3240. 

  3240.         } elseif($token['type'] === HTML5::STARTTAG &&
    3241. 

  3241.         $token['name'] === 'optgroup') {
    3242. 

  3242.             /* If the current node is an option element, act as if an end tag
    3243. 

  3243.             with the tag name "option" had been seen. */
    3244. 

  3244.             if(end($this->stack)->nodeName === 'option') {
    3245. 

  3245.                 $this->inSelect(array(
    3246. 

  3246.                     'name' => 'option',
    3247. 

  3247.                     'type' => HTML5::ENDTAG
    3248. 

  3248.                 ));
    3249. 

  3249.             }
    3250. 

  3250. 

  3251.             /* If the current node is an optgroup element, act as if an end tag
    3252. 

  3252.             with the tag name "optgroup" had been seen. */
    3253. 

  3253.             if(end($this->stack)->nodeName === 'optgroup') {
    3254. 

  3254.                 $this->inSelect(array(
    3255. 

  3255.                     'name' => 'optgroup',
    3256. 

  3256.                     'type' => HTML5::ENDTAG
    3257. 

  3257.                 ));
    3258. 

  3258.             }
    3259. 

  3259. 

  3260.             /* Insert an HTML element for the token. */
    3261. 

  3261.             $this->insertElement($token);
    3262. 

  3262. 

  3263.         /* An end tag token whose tag name is "optgroup" */
    3264. 

  3264.         } elseif($token['type'] === HTML5::ENDTAG &&
    3265. 

  3265.         $token['name'] === 'optgroup') {
    3266. 

  3266.             /* First, if the current node is an option element, and the node
    3267. 

  3267.             immediately before it in the stack of open elements is an optgroup
    3268. 

  3268.             element, then act as if an end tag with the tag name "option" had
    3269. 

  3269.             been seen. */
    3270. 

  3270.             $elements_in_stack = count($this->stack);
    3271. 

  3271. 

  3272.             if($this->stack[$elements_in_stack - 1]->nodeName === 'option' &&
    3273. 

  3273.             $this->stack[$elements_in_stack - 2]->nodeName === 'optgroup') {
    3274. 

  3274.                 $this->inSelect(array(
    3275. 

  3275.                     'name' => 'option',
    3276. 

  3276.                     'type' => HTML5::ENDTAG
    3277. 

  3277.                 ));
    3278. 

  3278.             }
    3279. 

  3279. 

  3280.             /* If the current node is an optgroup element, then pop that node
    3281. 

  3281.             from the stack of open elements. Otherwise, this is a parse error,
    3282. 

  3282.             ignore the token. */
    3283. 

  3283.             if($this->stack[$elements_in_stack - 1] === 'optgroup') {
    3284. 

  3284.                 array_pop($this->stack);
    3285. 

  3285.             }
    3286. 

  3286. 

  3287.         /* An end tag token whose tag name is "option" */
    3288. 

  3288.         } elseif($token['type'] === HTML5::ENDTAG &&
    3289. 

  3289.         $token['name'] === 'option') {
    3290. 

  3290.             /* If the current node is an option element, then pop that node
    3291. 

  3291.             from the stack of open elements. Otherwise, this is a parse error,
    3292. 

  3292.             ignore the token. */
    3293. 

  3293.             if(end($this->stack)->nodeName === 'option') {
    3294. 

  3294.                 array_pop($this->stack);
    3295. 

  3295.             }
    3296. 

  3296. 

  3297.         /* An end tag whose tag name is "select" */
    3298. 

  3298.         } elseif($token['type'] === HTML5::ENDTAG &&
    3299. 

  3299.         $token['name'] === 'select') {
    3300. 

  3300.             /* If the stack of open elements does not have an element in table
    3301. 

  3301.             scope with the same tag name as the token, this is a parse error.
    3302. 

  3302.             Ignore the token. (innerHTML case) */
    3303. 

  3303.             if(!$this->elementInScope($token['name'], true)) {
    3304. 

  3304.                 // w/e
    3305. 

  3305. 

  3306.             /* Otherwise: */
    3307. 

  3307.             } else {
    3308. 

  3308.                 /* Pop elements from the stack of open elements until a select
    3309. 

  3309.                 element has been popped from the stack. */
    3310. 

  3310.                 while(true) {
    3311. 

  3311.                     $current = end($this->stack)->nodeName;
    3312. 

  3312.                     array_pop($this->stack);
    3313. 

  3313. 

  3314.                     if($current === 'select') {
    3315. 

  3315.                         break;
    3316. 

  3316.                     }
    3317. 

  3317.                 }
    3318. 

  3318. 

  3319.                 /* Reset the insertion mode appropriately. */
    3320. 

  3320.                 $this->resetInsertionMode();
    3321. 

  3321.             }
    3322. 

  3322. 

  3323.         /* A start tag whose tag name is "select" */
    3324. 

  3324.         } elseif($token['name'] === 'select' &&
    3325. 

  3325.         $token['type'] === HTML5::STARTTAG) {
    3326. 

  3326.             /* Parse error. Act as if the token had been an end tag with the
    3327. 

  3327.             tag name "select" instead. */
    3328. 

  3328.             $this->inSelect(array(
    3329. 

  3329.                 'name' => 'select',
    3330. 

  3330.                 'type' => HTML5::ENDTAG
    3331. 

  3331.             ));
    3332. 

  3332. 

  3333.         /* An end tag whose tag name is one of: "caption", "table", "tbody",
    3334. 

  3334.         "tfoot", "thead", "tr", "td", "th" */
    3335. 

  3335.         } elseif(in_array($token['name'], array('caption', 'table', 'tbody',
    3336. 

  3336.         'tfoot', 'thead', 'tr', 'td', 'th')) && $token['type'] === HTML5::ENDTAG) {
    3337. 

  3337.             /* Parse error. */
    3338. 

  3338.             // w/e
    3339. 

  3339. 

  3340.             /* If the stack of open elements has an element in table scope with
    3341. 

  3341.             the same tag name as that of the token, then act as if an end tag
    3342. 

  3342.             with the tag name "select" had been seen, and reprocess the token.
    3343. 

  3343.             Otherwise, ignore the token. */
    3344. 

  3344.             if($this->elementInScope($token['name'], true)) {
    3345. 

  3345.                 $this->inSelect(array(
    3346. 

  3346.                     'name' => 'select',
    3347. 

  3347.                     'type' => HTML5::ENDTAG
    3348. 

  3348.                 ));
    3349. 

  3349. 

  3350.                 $this->mainPhase($token);
    3351. 

  3351.             }
    3352. 

  3352. 

  3353.         /* Anything else */
    3354. 

  3354.         } else {
    3355. 

  3355.             /* Parse error. Ignore the token. */
    3356. 

  3356.         }
    3357. 

  3357.     }
    3358. 

  3358. 

  3359.     private function afterBody($token) {
    3360. 

  3360.         /* Handle the token as follows: */
    3361. 

  3361. 

  3362.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    3363. 

  3363.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    3364. 

  3364.         or U+0020 SPACE */
    3365. 

  3365.         if($token['type'] === HTML5::CHARACTR &&
    3366. 

  3366.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) {
    3367. 

  3367.             /* Process the token as it would be processed if the insertion mode
    3368. 

  3368.             was "in body". */
    3369. 

  3369.             $this->inBody($token);
    3370. 

  3370. 

  3371.         /* A comment token */
    3372. 

  3372.         } elseif($token['type'] === HTML5::COMMENT) {
    3373. 

  3373.             /* Append a Comment node to the first element in the stack of open
    3374. 

  3374.             elements (the html element), with the data attribute set to the
    3375. 

  3375.             data given in the comment token. */
    3376. 

  3376.             $comment = $this->dom->createComment($token['data']);
    3377. 

  3377.             $this->stack[0]->appendChild($comment);
    3378. 

  3378. 

  3379.         /* An end tag with the tag name "html" */
    3380. 

  3380.         } elseif($token['type'] === HTML5::ENDTAG && $token['name'] === 'html') {
    3381. 

  3381.             /* If the parser was originally created in order to handle the
    3382. 

  3382.             setting of an element's innerHTML attribute, this is a parse error;
    3383. 

  3383.             ignore the token. (The element will be an html element in this
    3384. 

  3384.             case.) (innerHTML case) */
    3385. 

  3385. 

  3386.             /* Otherwise, switch to the trailing end phase. */
    3387. 

  3387.             $this->phase = self::END_PHASE;
    3388. 

  3388. 

  3389.         /* Anything else */
    3390. 

  3390.         } else {
    3391. 

  3391.             /* Parse error. Set the insertion mode to "in body" and reprocess
    3392. 

  3392.             the token. */
    3393. 

  3393.             $this->mode = self::IN_BODY;
    3394. 

  3394.             return $this->inBody($token);
    3395. 

  3395.         }
    3396. 

  3396.     }
    3397. 

  3397. 

  3398.     private function inFrameset($token) {
    3399. 

  3399.         /* Handle the token as follows: */
    3400. 

  3400. 

  3401.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    3402. 

  3402.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    3403. 

  3403.         U+000D CARRIAGE RETURN (CR), or U+0020 SPACE */
    3404. 

  3404.         if($token['type'] === HTML5::CHARACTR &&
    3405. 

  3405.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) {
    3406. 

  3406.             /* Append the character to the current node. */
    3407. 

  3407.             $this->insertText($token['data']);
    3408. 

  3408. 

  3409.         /* A comment token */
    3410. 

  3410.         } elseif($token['type'] === HTML5::COMMENT) {
    3411. 

  3411.             /* Append a Comment node to the current node with the data
    3412. 

  3412.             attribute set to the data given in the comment token. */
    3413. 

  3413.             $this->insertComment($token['data']);
    3414. 

  3414. 

  3415.         /* A start tag with the tag name "frameset" */
    3416. 

  3416.         } elseif($token['name'] === 'frameset' &&
    3417. 

  3417.         $token['type'] === HTML5::STARTTAG) {
    3418. 

  3418.             $this->insertElement($token);
    3419. 

  3419. 

  3420.         /* An end tag with the tag name "frameset" */
    3421. 

  3421.         } elseif($token['name'] === 'frameset' &&
    3422. 

  3422.         $token['type'] === HTML5::ENDTAG) {
    3423. 

  3423.             /* If the current node is the root html element, then this is a
    3424. 

  3424.             parse error; ignore the token. (innerHTML case) */
    3425. 

  3425.             if(end($this->stack)->nodeName === 'html') {
    3426. 

  3426.                 // Ignore
    3427. 

  3427. 

  3428.             } else {
    3429. 

  3429.                 /* Otherwise, pop the current node from the stack of open
    3430. 

  3430.                 elements. */
    3431. 

  3431.                 array_pop($this->stack);
    3432. 

  3432. 

  3433.                 /* If the parser was not originally created in order to handle
    3434. 

  3434.                 the setting of an element's innerHTML attribute (innerHTML case),
    3435. 

  3435.                 and the current node is no longer a frameset element, then change
    3436. 

  3436.                 the insertion mode to "after frameset". */
    3437. 

  3437.                 $this->mode = self::AFTR_FRAME;
    3438. 

  3438.             }
    3439. 

  3439. 

  3440.         /* A start tag with the tag name "frame" */
    3441. 

  3441.         } elseif($token['name'] === 'frame' &&
    3442. 

  3442.         $token['type'] === HTML5::STARTTAG) {
    3443. 

  3443.             /* Insert an HTML element for the token. */
    3444. 

  3444.             $this->insertElement($token);
    3445. 

  3445. 

  3446.             /* Immediately pop the current node off the stack of open elements. */
    3447. 

  3447.             array_pop($this->stack);
    3448. 

  3448. 

  3449.         /* A start tag with the tag name "noframes" */
    3450. 

  3450.         } elseif($token['name'] === 'noframes' &&
    3451. 

  3451.         $token['type'] === HTML5::STARTTAG) {
    3452. 

  3452.             /* Process the token as if the insertion mode had been "in body". */
    3453. 

  3453.             $this->inBody($token);
    3454. 

  3454. 

  3455.         /* Anything else */
    3456. 

  3456.         } else {
    3457. 

  3457.             /* Parse error. Ignore the token. */
    3458. 

  3458.         }
    3459. 

  3459.     }
    3460. 

  3460. 

  3461.     private function afterFrameset($token) {
    3462. 

  3462.         /* Handle the token as follows: */
    3463. 

  3463. 

  3464.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    3465. 

  3465.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    3466. 

  3466.         U+000D CARRIAGE RETURN (CR), or U+0020 SPACE */
    3467. 

  3467.         if($token['type'] === HTML5::CHARACTR &&
    3468. 

  3468.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) {
    3469. 

  3469.             /* Append the character to the current node. */
    3470. 

  3470.             $this->insertText($token['data']);
    3471. 

  3471. 

  3472.         /* A comment token */
    3473. 

  3473.         } elseif($token['type'] === HTML5::COMMENT) {
    3474. 

  3474.             /* Append a Comment node to the current node with the data
    3475. 

  3475.             attribute set to the data given in the comment token. */
    3476. 

  3476.             $this->insertComment($token['data']);
    3477. 

  3477. 

  3478.         /* An end tag with the tag name "html" */
    3479. 

  3479.         } elseif($token['name'] === 'html' &&
    3480. 

  3480.         $token['type'] === HTML5::ENDTAG) {
    3481. 

  3481.             /* Switch to the trailing end phase. */
    3482. 

  3482.             $this->phase = self::END_PHASE;
    3483. 

  3483. 

  3484.         /* A start tag with the tag name "noframes" */
    3485. 

  3485.         } elseif($token['name'] === 'noframes' &&
    3486. 

  3486.         $token['type'] === HTML5::STARTTAG) {
    3487. 

  3487.             /* Process the token as if the insertion mode had been "in body". */
    3488. 

  3488.             $this->inBody($token);
    3489. 

  3489. 

  3490.         /* Anything else */
    3491. 

  3491.         } else {
    3492. 

  3492.             /* Parse error. Ignore the token. */
    3493. 

  3493.         }
    3494. 

  3494.     }
    3495. 

  3495. 

  3496.     private function trailingEndPhase($token) {
    3497. 

  3497.         /* After the main phase, as each token is emitted from the tokenisation
    3498. 

  3498.         stage, it must be processed as described in this section. */
    3499. 

  3499. 

  3500.         /* A DOCTYPE token */
    3501. 

  3501.         if($token['type'] === HTML5::DOCTYPE) {
    3502. 

  3502.             // Parse error. Ignore the token.
    3503. 

  3503. 

  3504.         /* A comment token */
    3505. 

  3505.         } elseif($token['type'] === HTML5::COMMENT) {
    3506. 

  3506.             /* Append a Comment node to the Document object with the data
    3507. 

  3507.             attribute set to the data given in the comment token. */
    3508. 

  3508.             $comment = $this->dom->createComment($token['data']);
    3509. 

  3509.             $this->dom->appendChild($comment);
    3510. 

  3510. 

  3511.         /* A character token that is one of one of U+0009 CHARACTER TABULATION,
    3512. 

  3512.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    3513. 

  3513.         or U+0020 SPACE */
    3514. 

  3514.         } elseif($token['type'] === HTML5::CHARACTR &&
    3515. 

  3515.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) {
    3516. 

  3516.             /* Process the token as it would be processed in the main phase. */
    3517. 

  3517.             $this->mainPhase($token);
    3518. 

  3518. 

  3519.         /* A character token that is not one of U+0009 CHARACTER TABULATION,
    3520. 

  3520.         U+000A LINE FEED (LF), U+000B LINE TABULATION, U+000C FORM FEED (FF),
    3521. 

  3521.         or U+0020 SPACE. Or a start tag token. Or an end tag token. */
    3522. 

  3522.         } elseif(($token['type'] === HTML5::CHARACTR &&
    3523. 

  3523.         preg_match('/^[\t\n\x0b\x0c ]+$/', $token['data'])) ||
    3524. 

  3524.         $token['type'] === HTML5::STARTTAG || $token['type'] === HTML5::ENDTAG) {
    3525. 

  3525.             /* Parse error. Switch back to the main phase and reprocess the
    3526. 

  3526.             token. */
    3527. 

  3527.             $this->phase = self::MAIN_PHASE;
    3528. 

  3528.             return $this->mainPhase($token);
    3529. 

  3529. 

  3530.         /* An end-of-file token */
    3531. 

  3531.         } elseif($token['type'] === HTML5::EOF) {
    3532. 

  3532.             /* OMG DONE!! */
    3533. 

  3533.         }
    3534. 

  3534.     }
    3535. 

  3535. 

  3536.     private function insertElement($token, $append = true, $check = false) {
    3537. 

  3537.         // Proprietary workaround for libxml2's limitations with tag names
    3538. 

  3538.         if ($check) {
    3539. 

  3539.             // Slightly modified HTML5 tag-name modification,
    3540. 

  3540.             // removing anything that's not an ASCII letter, digit, or hyphen
    3541. 

  3541.             $token['name'] = preg_replace('/[^a-z0-9-]/i', '', $token['name']);
    3542. 

  3542.             // Remove leading hyphens and numbers
    3543. 

  3543.             $token['name'] = ltrim($token['name'], '-0..9');
    3544. 

  3544.             // In theory, this should ever be needed, but just in case
    3545. 

  3545.             if ($token['name'] === '') $token['name'] = 'span'; // arbitrary generic choice
    3546. 

  3546.         }
    3547. 

  3547.         
    3548. 

  3548.         $el = $this->dom->createElement($token['name']);
    3549. 

  3549. 

  3550.         foreach($token['attr'] as $attr) {
    3551. 

  3551.             if(!$el->hasAttribute($attr['name'])) {
    3552. 

  3552.                 $el->setAttribute($attr['name'], $attr['value']);
    3553. 

  3553.             }
    3554. 

  3554.         }
    3555. 

  3555. 

  3556.         $this->appendToRealParent($el);
    3557. 

  3557.         $this->stack[] = $el;
    3558. 

  3558. 

  3559.         return $el;
    3560. 

  3560.     }
    3561. 

  3561. 

  3562.     private function insertText($data) {
    3563. 

  3563.         $text = $this->dom->createTextNode($data);
    3564. 

  3564.         $this->appendToRealParent($text);
    3565. 

  3565.     }
    3566. 

  3566. 

  3567.     private function insertComment($data) {
    3568. 

  3568.         $comment = $this->dom->createComment($data);
    3569. 

  3569.         $this->appendToRealParent($comment);
    3570. 

  3570.     }
    3571. 

  3571. 

  3572.     private function appendToRealParent($node) {
    3573. 

  3573.         if($this->foster_parent === null) {
    3574. 

  3574.             end($this->stack)->appendChild($node);
    3575. 

  3575. 

  3576.         } elseif($this->foster_parent !== null) {
    3577. 

  3577.             /* If the foster parent element is the parent element of the
    3578. 

  3578.             last table element in the stack of open elements, then the new
    3579. 

  3579.             node must be inserted immediately before the last table element
    3580. 

  3580.             in the stack of open elements in the foster parent element;
    3581. 

  3581.             otherwise, the new node must be appended to the foster parent
    3582. 

  3582.             element. */
    3583. 

  3583.             for($n = count($this->stack) - 1; $n >= 0; $n--) {
    3584. 

  3584.                 if($this->stack[$n]->nodeName === 'table' &&
    3585. 

  3585.                 $this->stack[$n]->parentNode !== null) {
    3586. 

  3586.                     $table = $this->stack[$n];
    3587. 

  3587.                     break;
    3588. 

  3588.                 }
    3589. 

  3589.             }
    3590. 

  3590. 

  3591.             if(isset($table) && $this->foster_parent->isSameNode($table->parentNode))
    3592. 

  3592.                 $this->foster_parent->insertBefore($node, $table);
    3593. 

  3593.             else
    3594. 

  3594.                 $this->foster_parent->appendChild($node);
    3595. 

  3595. 

  3596.             $this->foster_parent = null;
    3597. 

  3597.         }
    3598. 

  3598.     }
    3599. 

  3599. 

  3600.     private function elementInScope($el, $table = false) {
    3601. 

  3601.         if(is_array($el)) {
    3602. 

  3602.             foreach($el as $element) {
    3603. 

  3603.                 if($this->elementInScope($element, $table)) {
    3604. 

  3604.                     return true;
    3605. 

  3605.                 }
    3606. 

  3606.             }
    3607. 

  3607. 

  3608.             return false;
    3609. 

  3609.         }
    3610. 

  3610. 

  3611.         $leng = count($this->stack);
    3612. 

  3612. 

  3613.         for($n = 0; $n < $leng; $n++) {
    3614. 

  3614.             /* 1. Initialise node to be the current node (the bottommost node of
    3615. 

  3615.             the stack). */
    3616. 

  3616.             $node = $this->stack[$leng - 1 - $n];
    3617. 

  3617. 

  3618.             if($node->tagName === $el) {
    3619. 

  3619.                 /* 2. If node is the target node, terminate in a match state. */
    3620. 

  3620.                 return true;
    3621. 

  3621. 

  3622.             } elseif($node->tagName === 'table') {
    3623. 

  3623.                 /* 3. Otherwise, if node is a table element, terminate in a failure
    3624. 

  3624.                 state. */
    3625. 

  3625.                 return false;
    3626. 

  3626. 

  3627.             } elseif($table === true && in_array($node->tagName, array('caption', 'td',
    3628. 

  3628.             'th', 'button', 'marquee', 'object'))) {
    3629. 

  3629.                 /* 4. Otherwise, if the algorithm is the "has an element in scope"
    3630. 

  3630.                 variant (rather than the "has an element in table scope" variant),
    3631. 

  3631.                 and node is one of the following, terminate in a failure state. */
    3632. 

  3632.                 return false;
    3633. 

  3633. 

  3634.             } elseif($node === $node->ownerDocument->documentElement) {
    3635. 

  3635.                 /* 5. Otherwise, if node is an html element (root element), terminate
    3636. 

  3636.                 in a failure state. (This can only happen if the node is the topmost
    3637. 

  3637.                 node of the    stack of open elements, and prevents the next step from
    3638. 

  3638.                 being invoked if there are no more elements in the stack.) */
    3639. 

  3639.                 return false;
    3640. 

  3640.             }
    3641. 

  3641. 

  3642.             /* Otherwise, set node to the previous entry in the stack of open
    3643. 

  3643.             elements and return to step 2. (This will never fail, since the loop
    3644. 

  3644.             will always terminate in the previous step if the top of the stack
    3645. 

  3645.             is reached.) */
    3646. 

  3646.         }
    3647. 

  3647.     }
    3648. 

  3648. 

  3649.     private function reconstructActiveFormattingElements() {
    3650. 

  3650.         /* 1. If there are no entries in the list of active formatting elements,
    3651. 

  3651.         then there is nothing to reconstruct; stop this algorithm. */
    3652. 

  3652.         $formatting_elements = count($this->a_formatting);
    3653. 

  3653. 

  3654.         if($formatting_elements === 0) {
    3655. 

  3655.             return false;
    3656. 

  3656.         }
    3657. 

  3657. 

  3658.         /* 3. Let entry be the last (most recently added) element in the list
    3659. 

  3659.         of active formatting elements. */
    3660. 

  3660.         $entry = end($this->a_formatting);
    3661. 

  3661. 

  3662.         /* 2. If the last (most recently added) entry in the list of active
    3663. 

  3663.         formatting elements is a marker, or if it is an element that is in the
    3664. 

  3664.         stack of open elements, then there is nothing to reconstruct; stop this
    3665. 

  3665.         algorithm. */
    3666. 

  3666.         if($entry === self::MARKER || in_array($entry, $this->stack, true)) {
    3667. 

  3667.             return false;
    3668. 

  3668.         }
    3669. 

  3669. 

  3670.         for($a = $formatting_elements - 1; $a >= 0; true) {
    3671. 

  3671.             /* 4. If there are no entries before entry in the list of active
    3672. 

  3672.             formatting elements, then jump to step 8. */
    3673. 

  3673.             if($a === 0) {
    3674. 

  3674.                 $step_seven = false;
    3675. 

  3675.                 break;
    3676. 

  3676.             }
    3677. 

  3677. 

  3678.             /* 5. Let entry be the entry one earlier than entry in the list of
    3679. 

  3679.             active formatting elements. */
    3680. 

  3680.             $a--;
    3681. 

  3681.             $entry = $this->a_formatting[$a];
    3682. 

  3682. 

  3683.             /* 6. If entry is neither a marker nor an element that is also in
    3684. 

  3684.             thetack of open elements, go to step 4. */
    3685. 

  3685.             if($entry === self::MARKER || in_array($entry, $this->stack, true)) {
    3686. 

  3686.                 break;
    3687. 

  3687.             }
    3688. 

  3688.         }
    3689. 

  3689. 

  3690.         while(true) {
    3691. 

  3691.             /* 7. Let entry be the element one later than entry in the list of
    3692. 

  3692.             active formatting elements. */
    3693. 

  3693.             if(isset($step_seven) && $step_seven === true) {
    3694. 

  3694.                 $a++;
    3695. 

  3695.                 $entry = $this->a_formatting[$a];
    3696. 

  3696.             }
    3697. 

  3697. 

  3698.             /* 8. Perform a shallow clone of the element entry to obtain clone. */
    3699. 

  3699.             $clone = $entry->cloneNode();
    3700. 

  3700. 

  3701.             /* 9. Append clone to the current node and push it onto the stack
    3702. 

  3702.             of open elements  so that it is the new current node. */
    3703. 

  3703.             end($this->stack)->appendChild($clone);
    3704. 

  3704.             $this->stack[] = $clone;
    3705. 

  3705. 

  3706.             /* 10. Replace the entry for entry in the list with an entry for
    3707. 

  3707.             clone. */
    3708. 

  3708.             $this->a_formatting[$a] = $clone;
    3709. 

  3709. 

  3710.             /* 11. If the entry for clone in the list of active formatting
    3711. 

  3711.             elements is not the last entry in the list, return to step 7. */
    3712. 

  3712.             if(end($this->a_formatting) !== $clone) {
    3713. 

  3713.                 $step_seven = true;
    3714. 

  3714.             } else {
    3715. 

  3715.                 break;
    3716. 

  3716.             }
    3717. 

  3717.         }
    3718. 

  3718.     }
    3719. 

  3719. 

  3720.     private function clearTheActiveFormattingElementsUpToTheLastMarker() {
    3721. 

  3721.         /* When the steps below require the UA to clear the list of active
    3722. 

  3722.         formatting elements up to the last marker, the UA must perform the
    3723. 

  3723.         following steps: */
    3724. 

  3724. 

  3725.         while(true) {
    3726. 

  3726.             /* 1. Let entry be the last (most recently added) entry in the list
    3727. 

  3727.             of active formatting elements. */
    3728. 

  3728.             $entry = end($this->a_formatting);
    3729. 

  3729. 

  3730.             /* 2. Remove entry from the list of active formatting elements. */
    3731. 

  3731.             array_pop($this->a_formatting);
    3732. 

  3732. 

  3733.             /* 3. If entry was a marker, then stop the algorithm at this point.
    3734. 

  3734.             The list has been cleared up to the last marker. */
    3735. 

  3735.             if($entry === self::MARKER) {
    3736. 

  3736.                 break;
    3737. 

  3737.             }
    3738. 

  3738.         }
    3739. 

  3739.     }
    3740. 

  3740. 

  3741.     private function generateImpliedEndTags($exclude = array()) {
    3742. 

  3742.         /* When the steps below require the UA to generate implied end tags,
    3743. 

  3743.         then, if the current node is a dd element, a dt element, an li element,
    3744. 

  3744.         a p element, a td element, a th  element, or a tr element, the UA must
    3745. 

  3745.         act as if an end tag with the respective tag name had been seen and
    3746. 

  3746.         then generate implied end tags again. */
    3747. 

  3747.         $node = end($this->stack);
    3748. 

  3748.         $elements = array_diff(array('dd', 'dt', 'li', 'p', 'td', 'th', 'tr'), $exclude);
    3749. 

  3749. 

  3750.         while(in_array(end($this->stack)->nodeName, $elements)) {
    3751. 

  3751.             array_pop($this->stack);
    3752. 

  3752.         }
    3753. 

  3753.     }
    3754. 

  3754. 

  3755.     private function getElementCategory($node) {
    3756. 

  3756.         $name = $node->tagName;
    3757. 

  3757.         if(in_array($name, $this->special))
    3758. 

  3758.             return self::SPECIAL;
    3759. 

  3759. 

  3760.         elseif(in_array($name, $this->scoping))
    3761. 

  3761.             return self::SCOPING;
    3762. 

  3762. 

  3763.         elseif(in_array($name, $this->formatting))
    3764. 

  3764.             return self::FORMATTING;
    3765. 

  3765. 

  3766.         else
    3767. 

  3767.             return self::PHRASING;
    3768. 

  3768.     }
    3769. 

  3769. 

  3770.     private function clearStackToTableContext($elements) {
    3771. 

  3771.         /* When the steps above require the UA to clear the stack back to a
    3772. 

  3772.         table context, it means that the UA must, while the current node is not
    3773. 

  3773.         a table element or an html element, pop elements from the stack of open
    3774. 

  3774.         elements. If this causes any elements to be popped from the stack, then
    3775. 

  3775.         this is a parse error. */
    3776. 

  3776.         while(true) {
    3777. 

  3777.             $node = end($this->stack)->nodeName;
    3778. 

  3778. 

  3779.             if(in_array($node, $elements)) {
    3780. 

  3780.                 break;
    3781. 

  3781.             } else {
    3782. 

  3782.                 array_pop($this->stack);
    3783. 

  3783.             }
    3784. 

  3784.         }
    3785. 

  3785.     }
    3786. 

  3786. 

  3787.     private function resetInsertionMode() {
    3788. 

  3788.         /* 1. Let last be false. */
    3789. 

  3789.         $last = false;
    3790. 

  3790.         $leng = count($this->stack);
    3791. 

  3791. 

  3792.         for($n = $leng - 1; $n >= 0; $n--) {
    3793. 

  3793.             /* 2. Let node be the last node in the stack of open elements. */
    3794. 

  3794.             $node = $this->stack[$n];
    3795. 

  3795. 

  3796.             /* 3. If node is the first node in the stack of open elements, then
    3797. 

  3797.             set last to true. If the element whose innerHTML  attribute is being
    3798. 

  3798.             set is neither a td  element nor a th element, then set node to the
    3799. 

  3799.             element whose innerHTML  attribute is being set. (innerHTML  case) */
    3800. 

  3800.             if($this->stack[0]->isSameNode($node)) {
    3801. 

  3801.                 $last = true;
    3802. 

  3802.             }
    3803. 

  3803. 

  3804.             /* 4. If node is a select element, then switch the insertion mode to
    3805. 

  3805.             "in select" and abort these steps. (innerHTML case) */
    3806. 

  3806.             if($node->nodeName === 'select') {
    3807. 

  3807.                 $this->mode = self::IN_SELECT;
    3808. 

  3808.                 break;
    3809. 

  3809. 

  3810.             /* 5. If node is a td or th element, then switch the insertion mode
    3811. 

  3811.             to "in cell" and abort these steps. */
    3812. 

  3812.             } elseif($node->nodeName === 'td' || $node->nodeName === 'th') {
    3813. 

  3813.                 $this->mode = self::IN_CELL;
    3814. 

  3814.                 break;
    3815. 

  3815. 

  3816.             /* 6. If node is a tr element, then switch the insertion mode to
    3817. 

  3817.             "in    row" and abort these steps. */
    3818. 

  3818.             } elseif($node->nodeName === 'tr') {
    3819. 

  3819.                 $this->mode = self::IN_ROW;
    3820. 

  3820.                 break;
    3821. 

  3821. 

  3822.             /* 7. If node is a tbody, thead, or tfoot element, then switch the
    3823. 

  3823.             insertion mode to "in table body" and abort these steps. */
    3824. 

  3824.             } elseif(in_array($node->nodeName, array('tbody', 'thead', 'tfoot'))) {
    3825. 

  3825.                 $this->mode = self::IN_TBODY;
    3826. 

  3826.                 break;
    3827. 

  3827. 

  3828.             /* 8. If node is a caption element, then switch the insertion mode
    3829. 

  3829.             to "in caption" and abort these steps. */
    3830. 

  3830.             } elseif($node->nodeName === 'caption') {
    3831. 

  3831.                 $this->mode = self::IN_CAPTION;
    3832. 

  3832.                 break;
    3833. 

  3833. 

  3834.             /* 9. If node is a colgroup element, then switch the insertion mode
    3835. 

  3835.             to "in column group" and abort these steps. (innerHTML case) */
    3836. 

  3836.             } elseif($node->nodeName === 'colgroup') {
    3837. 

  3837.                 $this->mode = self::IN_CGROUP;
    3838. 

  3838.                 break;
    3839. 

  3839. 

  3840.             /* 10. If node is a table element, then switch the insertion mode
    3841. 

  3841.             to "in table" and abort these steps. */
    3842. 

  3842.             } elseif($node->nodeName === 'table') {
    3843. 

  3843.                 $this->mode = self::IN_TABLE;
    3844. 

  3844.                 break;
    3845. 

  3845. 

  3846.             /* 11. If node is a head element, then switch the insertion mode
    3847. 

  3847.             to "in body" ("in body"! not "in head"!) and abort these steps.
    3848. 

  3848.             (innerHTML case) */
    3849. 

  3849.             } elseif($node->nodeName === 'head') {
    3850. 

  3850.                 $this->mode = self::IN_BODY;
    3851. 

  3851.                 break;
    3852. 

  3852. 

  3853.             /* 12. If node is a body element, then switch the insertion mode to
    3854. 

  3854.             "in body" and abort these steps. */
    3855. 

  3855.             } elseif($node->nodeName === 'body') {
    3856. 

  3856.                 $this->mode = self::IN_BODY;
    3857. 

  3857.                 break;
    3858. 

  3858. 

  3859.             /* 13. If node is a frameset element, then switch the insertion
    3860. 

  3860.             mode to "in frameset" and abort these steps. (innerHTML case) */
    3861. 

  3861.             } elseif($node->nodeName === 'frameset') {
    3862. 

  3862.                 $this->mode = self::IN_FRAME;
    3863. 

  3863.                 break;
    3864. 

  3864. 

  3865.             /* 14. If node is an html element, then: if the head element
    3866. 

  3866.             pointer is null, switch the insertion mode to "before head",
    3867. 

  3867.             otherwise, switch the insertion mode to "after head". In either
    3868. 

  3868.             case, abort these steps. (innerHTML case) */
    3869. 

  3869.             } elseif($node->nodeName === 'html') {
    3870. 

  3870.                 $this->mode = ($this->head_pointer === null)
    3871. 

  3871.                     ? self::BEFOR_HEAD
    3872. 

  3872.                     : self::AFTER_HEAD;
    3873. 

  3873. 

  3874.                 break;
    3875. 

  3875. 

  3876.             /* 15. If last is true, then set the insertion mode to "in body"
    3877. 

  3877.             and    abort these steps. (innerHTML case) */
    3878. 

  3878.             } elseif($last) {
    3879. 

  3879.                 $this->mode = self::IN_BODY;
    3880. 

  3880.                 break;
    3881. 

  3881.             }
    3882. 

  3882.         }
    3883. 

  3883.     }
    3884. 

  3884. 

  3885.     private function closeCell() {
    3886. 

  3886.         /* If the stack of open elements has a td or th element in table scope,
    3887. 

  3887.         then act as if an end tag token with that tag name had been seen. */
    3888. 

  3888.         foreach(array('td', 'th') as $cell) {
    3889. 

  3889.             if($this->elementInScope($cell, true)) {
    3890. 

  3890.                 $this->inCell(array(
    3891. 

  3891.                     'name' => $cell,
    3892. 

  3892.                     'type' => HTML5::ENDTAG
    3893. 

  3893.                 ));
    3894. 

  3894. 

  3895.                 break;
    3896. 

  3896.             }
    3897. 

  3897.         }
    3898. 

  3898.     }
    3899. 

  3899. 

  3900.     public function save() {
    3901. 

  3901.         return $this->dom;
    3902. 

  3902.     }
    3903. 

  3903. }
    3904. 

  3904. ?>
    3905. 

  3905.