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| Nowiki | |
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| getConfig | |
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| sourceToDom | |
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| domToWikitext | |
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63.60 | |||
| 1 | <?php |
| 2 | declare( strict_types = 1 ); |
| 3 | |
| 4 | namespace Wikimedia\Parsoid\Ext\Nowiki; |
| 5 | |
| 6 | use Wikimedia\Assert\Assert; |
| 7 | use Wikimedia\Parsoid\DOM\Comment; |
| 8 | use Wikimedia\Parsoid\DOM\DocumentFragment; |
| 9 | use Wikimedia\Parsoid\DOM\Element; |
| 10 | use Wikimedia\Parsoid\DOM\Text; |
| 11 | use Wikimedia\Parsoid\Ext\DiffDOMUtils; |
| 12 | use Wikimedia\Parsoid\Ext\DiffUtils; |
| 13 | use Wikimedia\Parsoid\Ext\DOMDataUtils; |
| 14 | use Wikimedia\Parsoid\Ext\DOMUtils; |
| 15 | use Wikimedia\Parsoid\Ext\ExtensionModule; |
| 16 | use Wikimedia\Parsoid\Ext\ExtensionTagHandler; |
| 17 | use Wikimedia\Parsoid\Ext\ParsoidExtensionAPI; |
| 18 | use Wikimedia\Parsoid\Ext\Utils; |
| 19 | use Wikimedia\Parsoid\NodeData\DataParsoid; |
| 20 | use Wikimedia\Parsoid\Utils\DOMCompat; |
| 21 | |
| 22 | /** |
| 23 | * Nowiki treats anything inside it as plain text. |
| 24 | */ |
| 25 | class Nowiki extends ExtensionTagHandler implements ExtensionModule { |
| 26 | |
| 27 | /** @inheritDoc */ |
| 28 | public function getConfig(): array { |
| 29 | return [ |
| 30 | 'name' => '<nowiki>', |
| 31 | 'tags' => [ |
| 32 | [ |
| 33 | 'name' => 'nowiki', |
| 34 | 'handler' => self::class, |
| 35 | ] |
| 36 | ] |
| 37 | ]; |
| 38 | } |
| 39 | |
| 40 | /** @inheritDoc */ |
| 41 | public function sourceToDom( |
| 42 | ParsoidExtensionAPI $extApi, string $txt, array $extArgs |
| 43 | ): DocumentFragment { |
| 44 | $domFragment = $extApi->htmlToDom( '' ); |
| 45 | $doc = $domFragment->ownerDocument; |
| 46 | $span = $doc->createElement( 'span' ); |
| 47 | DOMUtils::addTypeOf( $span, 'mw:Nowiki' ); |
| 48 | |
| 49 | foreach ( preg_split( '/(&[#0-9a-zA-Z]+;)/', $txt, -1, PREG_SPLIT_DELIM_CAPTURE ) as $i => $t ) { |
| 50 | if ( $i % 2 === 1 ) { |
| 51 | $cc = Utils::decodeWtEntities( $t ); |
| 52 | if ( $cc !== $t ) { |
| 53 | // This should match the output of the "htmlentity" rule |
| 54 | // in the tokenizer. |
| 55 | $entity = $doc->createElement( 'span' ); |
| 56 | DOMUtils::addTypeOf( $entity, 'mw:Entity' ); |
| 57 | $dp = new DataParsoid; |
| 58 | $dp->src = $t; |
| 59 | $dp->srcContent = $cc; |
| 60 | DOMDataUtils::setDataParsoid( $entity, $dp ); |
| 61 | $entity->appendChild( $doc->createTextNode( $cc ) ); |
| 62 | $span->appendChild( $entity ); |
| 63 | continue; |
| 64 | } |
| 65 | // else, fall down there |
| 66 | } |
| 67 | $span->appendChild( $doc->createTextNode( $t ) ); |
| 68 | } |
| 69 | |
| 70 | DOMCompat::normalize( $span ); |
| 71 | $domFragment->appendChild( $span ); |
| 72 | return $domFragment; |
| 73 | } |
| 74 | |
| 75 | /** @inheritDoc */ |
| 76 | public function domToWikitext( |
| 77 | ParsoidExtensionAPI $extApi, Element $node, bool $wrapperUnmodified |
| 78 | ) { |
| 79 | if ( !$node->hasChildNodes() ) { |
| 80 | $extApi->setHtml2wtStateFlag( 'hasSelfClosingNowikis' ); // FIXME |
| 81 | return '<nowiki/>'; |
| 82 | } |
| 83 | $str = '<nowiki>'; |
| 84 | for ( $child = $node->firstChild; $child; $child = $child->nextSibling ) { |
| 85 | $out = null; |
| 86 | if ( $child instanceof Element ) { |
| 87 | if ( DiffUtils::isDiffMarker( $child ) ) { |
| 88 | /* ignore */ |
| 89 | } elseif ( DOMCompat::nodeName( $child ) === 'span' && |
| 90 | DOMUtils::hasTypeOf( $child, 'mw:Entity' ) && |
| 91 | DiffDOMUtils::hasNChildren( $child, 1 ) |
| 92 | ) { |
| 93 | $dp = DOMDataUtils::getDataParsoid( $child ); |
| 94 | if ( isset( $dp->src ) && $dp->srcContent === $child->textContent ) { |
| 95 | // Unedited content |
| 96 | $out = $dp->src; |
| 97 | } else { |
| 98 | // Edited content |
| 99 | $out = Utils::entityEncodeAll( $child->firstChild->nodeValue ); |
| 100 | } |
| 101 | // DisplaySpace is added in a final post-processing pass so, |
| 102 | // even though it isn't emitted in the extension handler, we |
| 103 | // need to deal with the possibility of its presence |
| 104 | // FIXME(T254501): Should avoid the need for this |
| 105 | } elseif ( |
| 106 | DOMCompat::nodeName( $child ) === 'span' && |
| 107 | DOMUtils::hasTypeOf( $child, 'mw:DisplaySpace' ) && |
| 108 | DiffDOMUtils::hasNChildren( $child, 1 ) |
| 109 | ) { |
| 110 | $out = ' '; |
| 111 | } else { |
| 112 | /* This is a hacky fallback for what is essentially |
| 113 | * undefined behavior. No matter what we emit here, |
| 114 | * this won't roundtrip html2html. */ |
| 115 | $extApi->log( 'error/html2wt/nowiki', 'Invalid nowiki content' ); |
| 116 | $out = $child->textContent; |
| 117 | } |
| 118 | } elseif ( $child instanceof Text ) { |
| 119 | $out = $child->nodeValue; |
| 120 | } else { |
| 121 | Assert::invariant( $child instanceof Comment, "Expected a comment here" ); |
| 122 | /* Comments can't be embedded in a <nowiki> */ |
| 123 | $extApi->log( 'error/html2wt/nowiki', |
| 124 | 'Discarded invalid embedded comment in a <nowiki>' ); |
| 125 | $out = ''; |
| 126 | } |
| 127 | |
| 128 | // Always escape any nowikis found in $out |
| 129 | if ( $out ) { |
| 130 | // Inlined helper that previously existed in Parsoid's WT Utils |
| 131 | $str .= preg_replace( '#<(/?nowiki\s*/?\s*)>#i', '<$1>', $out ); |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | return $str . '</nowiki>'; |
| 136 | } |
| 137 | |
| 138 | } |