HydrateHeaderPlaceholders.php
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HydrateHeaderPlaceholders.php
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	<?php

	namespace MediaWiki\OutputTransform\Stages;

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

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

	public function shouldRun( ParserOutput $po, ?ParserOptions $popts, array $options = [] ): bool {
	// If this method ever returns something else than unconditional "true",
	// HydrateHeaderPlaceholderTest::provideShouldNotRun should be updated to not be skipped.
	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 );
	}
	}