Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
0.00% |
0 / 69 |
|
0.00% |
0 / 15 |
CRAP | |
0.00% |
0 / 1 |
| SimpleStack | |
0.00% |
0 / 69 |
|
0.00% |
0 / 15 |
1640 | |
0.00% |
0 / 1 |
| push | |
0.00% |
0 / 4 |
|
0.00% |
0 / 1 |
2 | |||
| pop | |
0.00% |
0 / 5 |
|
0.00% |
0 / 1 |
6 | |||
| replace | |
0.00% |
0 / 6 |
|
0.00% |
0 / 1 |
6 | |||
| remove | |
0.00% |
0 / 5 |
|
0.00% |
0 / 1 |
6 | |||
| isInScope | |
0.00% |
0 / 1 |
|
0.00% |
0 / 1 |
2 | |||
| isElementInScope | |
0.00% |
0 / 7 |
|
0.00% |
0 / 1 |
20 | |||
| isOneOfSetInScope | |
0.00% |
0 / 7 |
|
0.00% |
0 / 1 |
30 | |||
| isInListScope | |
0.00% |
0 / 7 |
|
0.00% |
0 / 1 |
6 | |||
| isInButtonScope | |
0.00% |
0 / 4 |
|
0.00% |
0 / 1 |
6 | |||
| isInTableScope | |
0.00% |
0 / 1 |
|
0.00% |
0 / 1 |
2 | |||
| isInSelectScope | |
0.00% |
0 / 9 |
|
0.00% |
0 / 1 |
56 | |||
| isInSpecificScope | |
0.00% |
0 / 7 |
|
0.00% |
0 / 1 |
30 | |||
| item | |
0.00% |
0 / 1 |
|
0.00% |
0 / 1 |
2 | |||
| length | |
0.00% |
0 / 1 |
|
0.00% |
0 / 1 |
2 | |||
| hasTemplate | |
0.00% |
0 / 4 |
|
0.00% |
0 / 1 |
20 | |||
| 1 | <?php |
| 2 | namespace Wikimedia\RemexHtml\TreeBuilder; |
| 3 | |
| 4 | use Wikimedia\RemexHtml\HTMLData; |
| 5 | |
| 6 | /** |
| 7 | * An implementation of the "stack of open elements" which, unlike CachingStack, |
| 8 | * iterates through the stack in order to answer queries about which elements |
| 9 | * are in scope. This is presumably faster for best case input. |
| 10 | */ |
| 11 | class SimpleStack extends Stack { |
| 12 | private $elements; |
| 13 | |
| 14 | /** |
| 15 | * A 2-d array giving the element types which break a scope region for the |
| 16 | * default scope, i.e. the one for phrases of the form "has an X element |
| 17 | * in scope". |
| 18 | * @var array<string,array<string,bool>> |
| 19 | */ |
| 20 | private static $defaultScope = [ |
| 21 | HTMLData::NS_HTML => [ |
| 22 | 'applet' => true, |
| 23 | 'caption' => true, |
| 24 | 'html' => true, |
| 25 | 'table' => true, |
| 26 | 'td' => true, |
| 27 | 'th' => true, |
| 28 | 'marquee' => true, |
| 29 | 'object' => true, |
| 30 | 'template' => true, |
| 31 | ], |
| 32 | HTMLData::NS_MATHML => [ |
| 33 | 'mi' => true, |
| 34 | 'mo' => true, |
| 35 | 'mn' => true, |
| 36 | 'ms' => true, |
| 37 | 'mtext' => true, |
| 38 | 'annotation-xml' => true, |
| 39 | ], |
| 40 | HTMLData::NS_SVG => [ |
| 41 | 'foreignObject' => true, |
| 42 | 'desc' => true, |
| 43 | 'title' => true, |
| 44 | ], |
| 45 | ]; |
| 46 | |
| 47 | /** |
| 48 | * The element types which break the table scope. |
| 49 | * @var array<string,array<string,bool>> |
| 50 | */ |
| 51 | private static $tableScope = [ |
| 52 | HTMLData::NS_HTML => [ |
| 53 | 'html' => true, |
| 54 | 'table' => true, |
| 55 | 'template' => true, |
| 56 | ] |
| 57 | ]; |
| 58 | |
| 59 | /** |
| 60 | * The element types which break the list scope. This is lazy-initialised. |
| 61 | * @var array<string,array<string,bool>> |
| 62 | */ |
| 63 | private static $listScope; |
| 64 | |
| 65 | /** |
| 66 | * The element types which break the button scope. This is lazy-initialised. |
| 67 | * @var array<string,array<string,bool>> |
| 68 | */ |
| 69 | private static $buttonScope; |
| 70 | |
| 71 | public function push( Element $elt ) { |
| 72 | $n = count( $this->elements ); |
| 73 | $this->elements[$n] = $elt; |
| 74 | $this->current = $elt; |
| 75 | $elt->stackIndex = $n; |
| 76 | } |
| 77 | |
| 78 | public function pop() { |
| 79 | $elt = array_pop( $this->elements ); |
| 80 | $elt->stackIndex = null; |
| 81 | $n = count( $this->elements ); |
| 82 | $this->current = $n ? $this->elements[$n - 1] : null; |
| 83 | return $elt; |
| 84 | } |
| 85 | |
| 86 | public function replace( Element $oldElt, Element $elt ) { |
| 87 | $idx = $oldElt->stackIndex; |
| 88 | $this->elements[$idx] = $elt; |
| 89 | $oldElt->stackIndex = null; |
| 90 | $elt->stackIndex = $idx; |
| 91 | if ( $idx === count( $this->elements ) - 1 ) { |
| 92 | $this->current = $elt; |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | public function remove( Element $elt ) { |
| 97 | $eltIndex = $elt->stackIndex; |
| 98 | $n = count( $this->elements ); |
| 99 | for ( $i = $eltIndex + 1; $i < $n; $i++ ) { |
| 100 | $this->elements[$i]->stackIndex--; |
| 101 | } |
| 102 | $elt->stackIndex = null; |
| 103 | } |
| 104 | |
| 105 | public function isInScope( $name ) { |
| 106 | return $this->isInSpecificScope( $name, self::$defaultScope ); |
| 107 | } |
| 108 | |
| 109 | public function isElementInScope( Element $elt ) { |
| 110 | for ( $i = count( $this->elements ) - 1; $i >= 0; $i-- ) { |
| 111 | $node = $this->elements[$i]; |
| 112 | if ( $node === $elt ) { |
| 113 | return true; |
| 114 | } |
| 115 | if ( isset( self::$defaultScope[$node->namespace][$node->name] ) ) { |
| 116 | return false; |
| 117 | } |
| 118 | } |
| 119 | return false; |
| 120 | } |
| 121 | |
| 122 | public function isOneOfSetInScope( $names ) { |
| 123 | for ( $i = count( $this->elements ) - 1; $i >= 0; $i-- ) { |
| 124 | $node = $this->elements[$i]; |
| 125 | if ( $node->namespace === HTMLData::NS_HTML && isset( $names[$node->name] ) ) { |
| 126 | return true; |
| 127 | } |
| 128 | if ( isset( self::$defaultScope[$node->namespace][$node->name] ) ) { |
| 129 | return false; |
| 130 | } |
| 131 | } |
| 132 | return false; |
| 133 | } |
| 134 | |
| 135 | public function isInListScope( $name ) { |
| 136 | if ( self::$listScope === null ) { |
| 137 | self::$listScope = self::$defaultScope; |
| 138 | self::$listScope[HTMLData::NS_HTML] += [ |
| 139 | 'ol' => true, |
| 140 | 'li' => true |
| 141 | ]; |
| 142 | } |
| 143 | return $this->isInSpecificScope( $name, self::$listScope ); |
| 144 | } |
| 145 | |
| 146 | public function isInButtonScope( $name ) { |
| 147 | if ( self::$buttonScope === null ) { |
| 148 | self::$buttonScope = self::$defaultScope; |
| 149 | self::$buttonScope[HTMLData::NS_HTML]['button'] = true; |
| 150 | } |
| 151 | return $this->isInSpecificScope( $name, self::$buttonScope ); |
| 152 | } |
| 153 | |
| 154 | public function isInTableScope( $name ) { |
| 155 | return $this->isInSpecificScope( $name, self::$tableScope ); |
| 156 | } |
| 157 | |
| 158 | public function isInSelectScope( $name ) { |
| 159 | for ( $i = count( $this->elements ) - 1; $i >= 0; $i-- ) { |
| 160 | $node = $this->elements[$i]; |
| 161 | if ( $node->namespace === HTMLData::NS_HTML && $node->name === $name ) { |
| 162 | return true; |
| 163 | } |
| 164 | if ( $node->namespace !== HTMLData::NS_HTML ) { |
| 165 | return false; |
| 166 | } |
| 167 | if ( $node->name !== 'optgroup' && $node->name !== 'option' ) { |
| 168 | return false; |
| 169 | } |
| 170 | } |
| 171 | return false; |
| 172 | } |
| 173 | |
| 174 | private function isInSpecificScope( $name, $set ) { |
| 175 | for ( $i = count( $this->elements ) - 1; $i >= 0; $i-- ) { |
| 176 | $node = $this->elements[$i]; |
| 177 | if ( $node->namespace === HTMLData::NS_HTML && $node->name === $name ) { |
| 178 | return true; |
| 179 | } |
| 180 | if ( isset( $set[$node->namespace][$node->name] ) ) { |
| 181 | return false; |
| 182 | } |
| 183 | } |
| 184 | return false; |
| 185 | } |
| 186 | |
| 187 | public function item( $idx ) { |
| 188 | return $this->elements[$idx]; |
| 189 | } |
| 190 | |
| 191 | public function length() { |
| 192 | return count( $this->elements ); |
| 193 | } |
| 194 | |
| 195 | public function hasTemplate() { |
| 196 | foreach ( $this->elements as $elt ) { |
| 197 | if ( $elt->namespace === HTMLData::NS_HTML && $elt->name === 'template' ) { |
| 198 | return true; |
| 199 | } |
| 200 | } |
| 201 | return false; |
| 202 | } |
| 203 | } |