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| 1 | <?php |
| 2 | declare( strict_types = 1 ); |
| 3 | |
| 4 | namespace Wikimedia\Parsoid\Wt2Html\TT; |
| 5 | |
| 6 | use Wikimedia\Parsoid\NodeData\DataParsoid; |
| 7 | use Wikimedia\Parsoid\Tokens\EndTagTk; |
| 8 | use Wikimedia\Parsoid\Tokens\ListTk; |
| 9 | use Wikimedia\Parsoid\Tokens\NlTk; |
| 10 | use Wikimedia\Parsoid\Tokens\TagTk; |
| 11 | |
| 12 | /** |
| 13 | * Private helper class for ListHandler. |
| 14 | * |
| 15 | * NOTE: This is *not* a per-list frame. |
| 16 | * |
| 17 | * This is a frame for every nested context within which list |
| 18 | * processing proceeds independent of any parent context. |
| 19 | * Currently, *only* tables introduce a new nested parsing context |
| 20 | * and lists embedded in a table cell are independent of any list |
| 21 | * that the table itself might be embedded in. |
| 22 | * |
| 23 | * So, if you ignore tables, there will only be a single list frame ever |
| 24 | * in the list-frame stack maintained in ListHandler. |
| 25 | * |
| 26 | * @internal |
| 27 | */ |
| 28 | class ListFrame { |
| 29 | /** |
| 30 | * Flag indicating a list-less line that terminates a list block |
| 31 | */ |
| 32 | public bool $atEOL = true; |
| 33 | /** |
| 34 | * NlTk that triggered atEOL |
| 35 | */ |
| 36 | public ?NlTk $nlTk = null; |
| 37 | public array $solTokens = []; |
| 38 | /** |
| 39 | * Bullet stack, previous element's listStyle |
| 40 | */ |
| 41 | public array $bstack = []; |
| 42 | /** |
| 43 | * Stack of end tags |
| 44 | * @var list<EndTagTk> |
| 45 | */ |
| 46 | public array $endtags = []; |
| 47 | /** |
| 48 | * Partial DOM building heuristic: |
| 49 | * Number of open block tags encountered within list context. |
| 50 | */ |
| 51 | public int $numOpenBlockTags = 0; |
| 52 | /** |
| 53 | * Number of open tags encountered within list context. |
| 54 | */ |
| 55 | public int $numOpenTags = 0; |
| 56 | |
| 57 | /** |
| 58 | * Did we generate a <dd> already on this line? |
| 59 | * Used to convert extra : listitems to ":" instead of extra <dl>s. |
| 60 | * Gets reset on encountering a NlTk or a ; listitem. |
| 61 | */ |
| 62 | public bool $haveDD = false; |
| 63 | |
| 64 | public ListTk $listTk; |
| 65 | |
| 66 | public function __construct() { |
| 67 | $this->listTk = new ListTk; |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * Handle popping tags after processing |
| 72 | * |
| 73 | * @param int $n |
| 74 | * @return list<EndTagTk> |
| 75 | */ |
| 76 | public function popTags( int $n ): array { |
| 77 | $tokens = []; |
| 78 | while ( $n > 0 ) { |
| 79 | // push list item.. |
| 80 | $temp = array_pop( $this->endtags ); |
| 81 | if ( $temp ) { |
| 82 | $tokens[] = $temp; |
| 83 | } |
| 84 | // and the list end tag |
| 85 | $temp = array_pop( $this->endtags ); |
| 86 | if ( $temp ) { |
| 87 | $tokens[] = $temp; |
| 88 | } |
| 89 | $n--; |
| 90 | } |
| 91 | return $tokens; |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * Push a list |
| 96 | * |
| 97 | * @return list{TagTk, TagTk} |
| 98 | */ |
| 99 | public function pushList( |
| 100 | array $container, DataParsoid $dp1, DataParsoid $dp2 |
| 101 | ): array { |
| 102 | $this->endtags[] = new EndTagTk( $container['list'] ); |
| 103 | $this->endtags[] = new EndTagTk( $container['item'] ); |
| 104 | |
| 105 | if ( $container['item'] === 'dd' ) { |
| 106 | $this->haveDD = true; |
| 107 | } elseif ( $container['item'] === 'dt' ) { |
| 108 | $this->haveDD = false; // reset |
| 109 | } |
| 110 | |
| 111 | $this->listTk->listType ??= $container['list']; |
| 112 | |
| 113 | return [ |
| 114 | new TagTk( $container['list'], [], $dp1 ), |
| 115 | new TagTk( $container['item'], [], $dp2 ) |
| 116 | ]; |
| 117 | } |
| 118 | |
| 119 | } |