ExpectingATEXT example

        $invalidDomainTokens = [
            EmailLexer::S_DQUOTE => true,
            EmailLexer::S_SQUOTE => true,
            EmailLexer::S_BACKTICK => true,
            EmailLexer::S_SEMICOLON => true,
            EmailLexer::S_GREATERTHAN => true,
            EmailLexer::S_LOWERTHAN => true,
        ];

        if (isset($invalidDomainTokens[$this->lexer->current->type])) {
            return new InvalidEmail(new ExpectingATEXT('Invalid token in domain: ' . $this->lexer->current->value), $this->lexer->current->value);
        }
        return new ValidEmail();
    }
}

if (isset($special[$this->lexer->current->type]) && $setSpecialsWarning) {
                $this->warnings[CFWSWithFWS::CODE] = new CFWSWithFWS();
                $setSpecialsWarning = false;
            }
            if ($this->lexer->current->isA(EmailLexer::S_BACKSLASH) && $this->lexer->isNextToken(EmailLexer::S_DQUOTE)) {
                $this->lexer->moveNext();
            }

            $this->lexer->moveNext();

            if (!$this->escaped() && isset($invalid[$this->lexer->current->type])) {
                return new InvalidEmail(new ExpectingATEXT("Expecting ATEXT between DQUOTE"), $this->lexer->current->value);
            }
        }

        $prev = $this->lexer->getPrevious();

        if ($prev->isA(EmailLexer::S_BACKSLASH)) {
            $validQuotedString = $this->checkDQUOTE();
            if ($validQuotedString->isInvalid()) return $validQuotedString;
        }

        if (!$this->lexer->isNextToken(EmailLexer::S_AT) && !$prev->isA(EmailLexer::S_BACKSLASH)) {
            

$this->localPart = rtrim($this->lexer->getAccumulatedValues(), '@');
        if (strlen($this->localPart) > LocalTooLong::LOCAL_PART_LENGTH) {
            $this->warnings[LocalTooLong::CODE] = new LocalTooLong();
        }

        return new ValidEmail();
    }

    protected function validateTokens(bool $hasComments): Result
    {
        if (isset(self::INVALID_TOKENS[$this->lexer->current->type])) {
            return new InvalidEmail(new ExpectingATEXT('Invalid token found'), $this->lexer->current->value);
        }
        return new ValidEmail();
    }

    public function localPart(): string
    {
        return $this->localPart;
    }

    private function parseLocalFWS(): Result
    {
        

    /** * @param Token<int, string> $prev * @param bool $hasComments * * @return Result */
    protected function checkDomainPartExceptions(Token $prev, bool $hasComments): Result
    {
        if ($this->lexer->current->isA(EmailLexer::S_OPENBRACKET) && $prev->type !== EmailLexer::S_AT) {
            return new InvalidEmail(new ExpectingATEXT('OPENBRACKET not after AT'), $this->lexer->current->value);
        }

        if ($this->lexer->current->isA(EmailLexer::S_HYPHEN) && $this->lexer->isNextToken(EmailLexer::S_DOT)) {
            return new InvalidEmail(new DomainHyphened('Hypen found near DOT'), $this->lexer->current->value);
        }

        if (
            $this->lexer->current->isA(EmailLexer::S_BACKSLASH)
            && $this->lexer->isNextToken(EmailLexer::GENERIC)
        ) {
            return new InvalidEmail(new ExpectingATEXT('Escaping following "ATOM"'), $this->lexer->current->value);
        }

    private $warnings = [];

    public function exitCondition(EmailLexer $lexer, int $openedParenthesis): bool
    {
        return !$lexer->isNextToken(EmailLexer::S_AT);
    }

    public function endOfLoopValidations(EmailLexer $lexer): Result
    {
        if (!$lexer->isNextToken(EmailLexer::S_AT)) {
            return new InvalidEmail(new ExpectingATEXT('ATEX is not expected after closing comments'), $lexer->current->value);
        }
        $this->warnings[CFWSNearAt::CODE] = new CFWSNearAt();
        return new ValidEmail();
    }

    public function getWarnings(): array
    {
        return $this->warnings;
    }
}

if (($openedParenthesis === 0 && $lexer->isNextToken(EmailLexer::S_DOT))) { // || !$internalLexer->moveNext()) {             return false;
        }

        return true;
    }

    public function endOfLoopValidations(EmailLexer $lexer): Result
    {
        //test for end of string         if (!$lexer->isNextToken(EmailLexer::S_DOT)) {
            return new InvalidEmail(new ExpectingATEXT('DOT not found near CLOSEPARENTHESIS'), $lexer->current->value);
        }
        //add warning         //Address is valid within the message but cannot be used unmodified for the envelope         return new ValidEmail();
    }

    public function getWarnings(): array
    {
        return [];
    }
}

public function __construct(EmailLexer $lexer)
    {
        $this->lexer = $lexer;
    }

    public function parse(string $str): Result
    {
        $this->lexer->setInput($str);

        if ($this->lexer->hasInvalidTokens()) {
            return new InvalidEmail(new ExpectingATEXT("Invalid tokens found"), $this->lexer->current->value);
        }

        $preParsingResult = $this->preLeftParsing();
        if ($preParsingResult->isInvalid()) {
            return $preParsingResult;
        }

        $localPartResult = $this->parseLeftFromAt();

        if ($localPartResult->isInvalid()) {
            return $localPartResult;
        }