DotAtEnd example

            }

            if ($this->lexer->current->isA(EmailLexer::S_DOT) && $this->lexer->isNextToken(EmailLexer::S_DOT)) {
                return new InvalidEmail(new ConsecutiveDot(), $this->lexer->current->value);
            }

            if (
                $this->lexer->current->isA(EmailLexer::S_DOT) &&
                $this->lexer->isNextToken(EmailLexer::S_AT)
            ) {
                return new InvalidEmail(new DotAtEnd(), $this->lexer->current->value);
            }

            $resultEscaping = $this->validateEscaping();
            if ($resultEscaping->isInvalid()) {
                return $resultEscaping;
            }

            $resultToken = $this->validateTokens(false);
            if ($resultToken->isInvalid()) {
                return $resultToken;
            }

            

if ($length > self::DOMAIN_MAX_LENGTH) {
            return new InvalidEmail(new DomainTooLong(), $this->lexer->current->value);
        }

        return new ValidEmail();
    }

    private function checkEndOfDomain(): Result
    {
        $prev = $this->lexer->getPrevious();
        if ($prev->isA(EmailLexer::S_DOT)) {
            return new InvalidEmail(new DotAtEnd(), $this->lexer->current->value);
        }
        if ($prev->isA(EmailLexer::S_HYPHEN)) {
            return new InvalidEmail(new DomainHyphened('Hypen found at the end of the domain'), $prev->value);
        }

        if ($this->lexer->current->isA(EmailLexer::S_SP)) {
            return new InvalidEmail(new CRLFAtTheEnd(), $prev->value);
        }
        return new ValidEmail();
    }