CharacterReference.php
3 years ago
DOMTreeBuilder.php
3 years ago
EventHandler.php
3 years ago
FileInputStream.php
3 years ago
InputStream.php
3 years ago
ParseError.php
3 years ago
Scanner.php
3 years ago
StringInputStream.php
3 years ago
Tokenizer.php
3 years ago
TreeBuildingRules.php
3 years ago
UTF8Utils.php
3 years ago
TreeBuildingRules.php
84 lines
| 1 | <?php |
| 2 | |
| 3 | namespace IAWP\Masterminds\HTML5\Parser; |
| 4 | |
| 5 | /** |
| 6 | * Handles special-case rules for the DOM tree builder. |
| 7 | * |
| 8 | * Many tags have special rules that need to be accomodated on an |
| 9 | * individual basis. This class handles those rules. |
| 10 | * |
| 11 | * See section 8.1.2.4 of the spec. |
| 12 | * |
| 13 | * @todo - colgroup and col special behaviors |
| 14 | * - body and head special behaviors |
| 15 | */ |
| 16 | class TreeBuildingRules |
| 17 | { |
| 18 | protected static $tags = array('li' => 1, 'dd' => 1, 'dt' => 1, 'rt' => 1, 'rp' => 1, 'tr' => 1, 'th' => 1, 'td' => 1, 'thead' => 1, 'tfoot' => 1, 'tbody' => 1, 'table' => 1, 'optgroup' => 1, 'option' => 1); |
| 19 | /** |
| 20 | * Returns true if the given tagname has special processing rules. |
| 21 | */ |
| 22 | public function hasRules($tagname) |
| 23 | { |
| 24 | return isset(static::$tags[$tagname]); |
| 25 | } |
| 26 | /** |
| 27 | * Evaluate the rule for the current tag name. |
| 28 | * |
| 29 | * This may modify the existing DOM. |
| 30 | * |
| 31 | * @return \DOMElement The new Current DOM element. |
| 32 | */ |
| 33 | public function evaluate($new, $current) |
| 34 | { |
| 35 | switch ($new->tagName) { |
| 36 | case 'li': |
| 37 | return $this->handleLI($new, $current); |
| 38 | case 'dt': |
| 39 | case 'dd': |
| 40 | return $this->handleDT($new, $current); |
| 41 | case 'rt': |
| 42 | case 'rp': |
| 43 | return $this->handleRT($new, $current); |
| 44 | case 'optgroup': |
| 45 | return $this->closeIfCurrentMatches($new, $current, array('optgroup')); |
| 46 | case 'option': |
| 47 | return $this->closeIfCurrentMatches($new, $current, array('option')); |
| 48 | case 'tr': |
| 49 | return $this->closeIfCurrentMatches($new, $current, array('tr')); |
| 50 | case 'td': |
| 51 | case 'th': |
| 52 | return $this->closeIfCurrentMatches($new, $current, array('th', 'td')); |
| 53 | case 'tbody': |
| 54 | case 'thead': |
| 55 | case 'tfoot': |
| 56 | case 'table': |
| 57 | // Spec isn't explicit about this, but it's necessary. |
| 58 | return $this->closeIfCurrentMatches($new, $current, array('thead', 'tfoot', 'tbody')); |
| 59 | } |
| 60 | return $current; |
| 61 | } |
| 62 | protected function handleLI($ele, $current) |
| 63 | { |
| 64 | return $this->closeIfCurrentMatches($ele, $current, array('li')); |
| 65 | } |
| 66 | protected function handleDT($ele, $current) |
| 67 | { |
| 68 | return $this->closeIfCurrentMatches($ele, $current, array('dt', 'dd')); |
| 69 | } |
| 70 | protected function handleRT($ele, $current) |
| 71 | { |
| 72 | return $this->closeIfCurrentMatches($ele, $current, array('rt', 'rp')); |
| 73 | } |
| 74 | protected function closeIfCurrentMatches($ele, $current, $match) |
| 75 | { |
| 76 | if (\in_array($current->tagName, $match, \true)) { |
| 77 | $current->parentNode->appendChild($ele); |
| 78 | } else { |
| 79 | $current->appendChild($ele); |
| 80 | } |
| 81 | return $ele; |
| 82 | } |
| 83 | } |
| 84 |