stenin-nikita / PHP-Yacc

        while ($token->getType() === Token::NAME || $token->getType() === Token::STRING) {

            $p = $this->context->internSymbol($token->getValue(), true);

            if ($p->name[0] === "'") {

                $p->value = Utils::characterValue(\mb_substr($p->name, 1, -1));

            }

            if ($type) {

                $p->type = $type;

            return $p;

        }

        if ($isTerm || $s[0] === "'") {

            if ($s[0] === "'") {

                $p->value = Utils::characterValue(\mb_substr($s, 1, -1));

            } else {

                $p->value = -1;

            }

            $p->terminal = Symbol::TERMINAL;

        } else {

            $p->value = null;