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| 1 | <?php |
| 2 | declare( strict_types = 1 ); |
| 3 | |
| 4 | namespace Wikimedia\Parsoid\Html2Wt\ConstrainedText; |
| 5 | |
| 6 | use Wikimedia\Parsoid\Config\Env; |
| 7 | use Wikimedia\Parsoid\Config\SiteConfig; |
| 8 | use Wikimedia\Parsoid\DOM\Element; |
| 9 | use Wikimedia\Parsoid\NodeData\DataParsoid; |
| 10 | use Wikimedia\Parsoid\Utils\DOMCompat; |
| 11 | use Wikimedia\Parsoid\Utils\DOMUtils; |
| 12 | use Wikimedia\Parsoid\Utils\PHPUtils; |
| 13 | |
| 14 | /** |
| 15 | * An internal wiki link, like `[[Foo]]`. |
| 16 | */ |
| 17 | class WikiLinkText extends RegExpConstrainedText { |
| 18 | /** @var bool */ |
| 19 | private $greedy = false; |
| 20 | |
| 21 | /** |
| 22 | * @param string $text |
| 23 | * @param Element $node |
| 24 | * @param SiteConfig $siteConfig |
| 25 | * @param string $type |
| 26 | * The type of the link, as described by the `rel` attribute. |
| 27 | */ |
| 28 | public function __construct( |
| 29 | string $text, Element $node, |
| 30 | SiteConfig $siteConfig, string $type |
| 31 | ) { |
| 32 | // category links/external links/images don't use link trails or prefixes |
| 33 | $noTrails = preg_match( '#^mw:WikiLink(/Interwiki)?$#D', $type ) === 0; |
| 34 | $badPrefix = '/(^|[^\[])(\[\[)*\[$/D'; |
| 35 | $linkPrefixRegex = $siteConfig->linkPrefixRegex(); |
| 36 | if ( !$noTrails && $linkPrefixRegex ) { |
| 37 | $badPrefix = |
| 38 | '/(' . PHPUtils::reStrip( $linkPrefixRegex, '/' ) . ')' . |
| 39 | '|(' . PHPUtils::reStrip( $badPrefix, '/' ) . ')/uD'; |
| 40 | } |
| 41 | parent::__construct( [ |
| 42 | 'text' => $text, |
| 43 | 'node' => $node, |
| 44 | 'badPrefix' => $badPrefix, |
| 45 | 'badSuffix' => ( $noTrails ) ? null : $siteConfig->linkTrailRegex(), |
| 46 | ] ); |
| 47 | // We match link trails greedily when they exist. |
| 48 | if ( !( $noTrails || substr( $text, -1 ) === ']' ) ) { |
| 49 | $this->greedy = true; |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | /** @inheritDoc */ |
| 54 | public function escape( State $state ): Result { |
| 55 | $r = parent::escape( $state ); |
| 56 | // If previous token was also a WikiLink, its linktrail will |
| 57 | // eat up any possible linkprefix characters, so we don't need |
| 58 | // a <nowiki> in this case. (Eg: [[a]]-[[b]] in iswiki; the - |
| 59 | // character is both a link prefix and a link trail, but it gets |
| 60 | // preferentially associated with the [[a]] as a link trail.) |
| 61 | $r->greedy = $this->greedy; |
| 62 | return $r; |
| 63 | } |
| 64 | |
| 65 | protected static function fromSelSerImpl( |
| 66 | string $text, Element $node, DataParsoid $dataParsoid, |
| 67 | Env $env, array $opts |
| 68 | ): ?WikiLinkText { |
| 69 | $stx = $dataParsoid->stx ?? ''; |
| 70 | if ( |
| 71 | DOMUtils::matchRel( $node, '#^mw:WikiLink(/Interwiki)?$#D' ) && |
| 72 | in_array( $stx, [ 'simple', 'piped' ], true ) |
| 73 | ) { |
| 74 | $rel = DOMCompat::getAttribute( $node, 'rel' ); |
| 75 | return new WikiLinkText( $text, $node, $env->getSiteConfig(), $rel ); |
| 76 | } |
| 77 | return null; |
| 78 | } |
| 79 | } |