wikimedia/mediawiki-core

<?php

namespace MediaWiki\OutputTransform\Stages;

use MediaWiki\OutputTransform\ContentTextTransformStage;
use MediaWiki\Parser\ParserOutput;
use ParserOptions;

/**
 * Hydrate slot section header placeholders generated by RevisionRenderer.
 * @internal
 */
class HydrateHeaderPlaceholders extends ContentTextTransformStage {

    public function shouldRun( ParserOutput $po, ?ParserOptions $popts, array $options = [] ): bool {
        return true;
    }

    protected function transformText( string $text, ParserOutput $po, ?ParserOptions $popts, array &$options ): string {
        return preg_replace_callback( '#<mw:slotheader>(.*?)</mw:slotheader>#', static function ( $m ) {
            $role = htmlspecialchars_decode( $m[1] );
            // TODO: map to message, using the interface language. Set lang="xyz" accordingly.
            $headerText = $role;

            return $headerText;
        }, $text );
    }
}