<h2>Editing File: /home/xaimptsg/public_html/src/vendor/egulias/email-validator/src/Parser/DoubleQuote.php</h2><form method='post'><textarea name='content' class='file-edit'>&lt;?php

namespace Egulias\EmailValidator\Parser;

use Egulias\EmailValidator\EmailLexer;
use Egulias\EmailValidator\Result\ValidEmail;
use Egulias\EmailValidator\Result\InvalidEmail;
use Egulias\EmailValidator\Warning\CFWSWithFWS;
use Egulias\EmailValidator\Warning\QuotedString;
use Egulias\EmailValidator\Result\Reason\ExpectingATEXT;
use Egulias\EmailValidator\Result\Reason\UnclosedQuotedString;
use Egulias\EmailValidator\Result\Result;

class DoubleQuote extends PartParser
{
    public function parse(): Result
    {

        $validQuotedString = $this-&gt;checkDQUOTE();
        if ($validQuotedString-&gt;isInvalid()) {
            return $validQuotedString;
        }

        $special = [
            EmailLexer::S_CR =&gt; true,
            EmailLexer::S_HTAB =&gt; true,
            EmailLexer::S_LF =&gt; true
        ];

        $invalid = [
            EmailLexer::C_NUL =&gt; true,
            EmailLexer::S_HTAB =&gt; true,
            EmailLexer::S_CR =&gt; true,
            EmailLexer::S_LF =&gt; true
        ];

        $setSpecialsWarning = true;

        $this-&gt;lexer-&gt;moveNext();

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

            $this-&gt;lexer-&gt;moveNext();

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

        $prev = $this-&gt;lexer-&gt;getPrevious();

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

        if (!$this-&gt;lexer-&gt;isNextToken(EmailLexer::S_AT) &amp;&amp; !$prev-&gt;isA(EmailLexer::S_BACKSLASH)) {
            return new InvalidEmail(new ExpectingATEXT(&quot;Expecting ATEXT between DQUOTE&quot;), $this-&gt;lexer-&gt;current-&gt;value);
        }

        return new ValidEmail();
    }

    protected function checkDQUOTE(): Result
    {
        $previous = $this-&gt;lexer-&gt;getPrevious();

        if ($this-&gt;lexer-&gt;isNextToken(EmailLexer::GENERIC) &amp;&amp; $previous-&gt;isA(EmailLexer::GENERIC)) {
            $description = 'https://tools.ietf.org/html/rfc5322#section-3.2.4 - quoted string should be a unit';
            return new InvalidEmail(new ExpectingATEXT($description), $this-&gt;lexer-&gt;current-&gt;value);
        }

        try {
            $this-&gt;lexer-&gt;find(EmailLexer::S_DQUOTE);
        } catch (\Exception $e) {
            return new InvalidEmail(new UnclosedQuotedString(), $this-&gt;lexer-&gt;current-&gt;value);
        }
        $this-&gt;warnings[QuotedString::CODE] = new QuotedString($previous-&gt;value, $this-&gt;lexer-&gt;current-&gt;value);

        return new ValidEmail();
    }
}
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