thunderer / Shortcode

        $closingName = null;

        while($this->position < $this->tokensCount) {

            while($this->position < $this->tokensCount && false === $this->lookahead(self::TOKEN_OPEN)) {

                $content .= $this->match(null, true);

            }

            $this->beginBacktrack();

            /** @psalm-suppress MixedArgumentTypeCoercion */

        $value = '';

        if($this->match(self::TOKEN_DELIMITER, false)) {

            while($this->position < $this->tokensCount && false === $this->lookahead(self::TOKEN_DELIMITER)) {

                $value .= $this->match(null, false);

            }

            return $this->match(self::TOKEN_DELIMITER, false) ? $value : false;

        }