wikimedia / mediawiki

		$this->checkRegex( $file, $text, '/^[\xFF\xFE\xEF]/', 'byte-order mark' );

	}

	private function checkRegex( $file, $text, $regex, $desc ) {

		if ( !preg_match( $regex, $text ) ) {

			return;

		}

		if ( !isset( $this->mWarnings[$file] ) ) {

			$this->mWarnings[$file] = [];

		}

		$this->mWarnings[$file][] = $desc;

		$this->output( "Warning in file $file: $desc found.\n" );

	}

	private function checkEvilToken( $file, $tokens, $evilToken, $desc ) {

		if ( !in_array( $evilToken, $tokens ) ) {

		$this->output( "Warning in file $file: $desc found.\n" );

	}

	private function checkEvilToken( $file, $tokens, $evilToken, $desc ) {

		if ( !in_array( $evilToken, $tokens ) ) {

			return;

		}

		if ( !isset( $this->mWarnings[$file] ) ) {

			$this->mWarnings[$file] = [];

		}

		$this->mWarnings[$file][] = $desc;

		$this->output( "Warning in file $file: $desc found.\n" );

	}

}

$maintClass = "CheckSyntax";