first commit

vendor/egulias/email-validator/src/Parser/DoubleQuote.php

@@ -0,0 +1,91 @@
+<?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 = $this->checkDQUOTE();
+        if ($validQuotedString->isInvalid()) {
+            return $validQuotedString;
+        }
+
+        $special = [
+            EmailLexer::S_CR => true,
+            EmailLexer::S_HTAB => true,
+            EmailLexer::S_LF => true
+        ];
+
+        $invalid = [
+            EmailLexer::C_NUL => true,
+            EmailLexer::S_HTAB => true,
+            EmailLexer::S_CR => true,
+            EmailLexer::S_LF => true
+        ];
+
+        $setSpecialsWarning = true;
+
+        $this->lexer->moveNext();
+
+        while (!$this->lexer->current->isA(EmailLexer::S_DQUOTE) && !$this->lexer->current->isA(EmailLexer::S_EMPTY)) {
+            if (isset($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)) {
+            return new InvalidEmail(new ExpectingATEXT("Expecting ATEXT between DQUOTE"), $this->lexer->current->value);
+        }
+
+        return new ValidEmail();
+    }
+
+    protected function checkDQUOTE(): Result
+    {
+        $previous = $this->lexer->getPrevious();
+
+        if ($this->lexer->isNextToken(EmailLexer::GENERIC) && $previous->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->lexer->current->value);
+        }
+
+        try {
+            $this->lexer->find(EmailLexer::S_DQUOTE);
+        } catch (\Exception $e) {
+            return new InvalidEmail(new UnclosedQuotedString(), $this->lexer->current->value);
+        }
+        $this->warnings[QuotedString::CODE] = new QuotedString($previous->value, $this->lexer->current->value);
+
+        return new ValidEmail();
+    }
+}