Treat quote as value if already in quote using another delimiter

CHANGELOG.md

@@ -22,7 +22,9 @@ All notable changes to this project will be documented in this file, in reverse
 
 ### Fixed
 
-- Nothing.
+- [#226](https://github.com/zendframework/zend-mail/pull/226) fixes how `Zend\Mail\Header\ListParser::parse()` parses the string if a different quote delimiter
+  is found when already in quote as described in [#222](https://github.com/zendframework/zend-mail/issues/222). Merges test from
+  [#224](https://github.com/zendframework/zend-mail/pull/224).
 
 ## 2.10.0 - 2018-06-07
 

src/Header/ListParser.php

@@ -76,6 +76,12 @@ public static function parse($value, array $delims = self::CHAR_DELIMS)
                 continue;
             }
 
+            // If already in quote and the character does not match the previously
+            // matched quote delimiter, we're done here.
+            if ($inQuote) {
+                continue;
+            }
+
             // Otherwise, we're starting a quoted string.
             $inQuote = true;
             $currentQuoteDelim = $char;

test/AddressListTest.php

@@ -144,4 +144,26 @@ public function testSemicolonSeparator()
         $this->assertTrue($addressList->has('[email protected]'));
         $this->assertTrue($addressList->has('[email protected]'));
     }
+
+    /**
+     * If name-field is quoted with "", then ' inside it should not treated as terminator, but as value.
+     */
+    public function testMixedQuotesInName()
+    {
+        $header = '"Bob O\'Reilly" <[email protected]>,[email protected]';
+
+        // In previous versions, this throws:
+        // 'Bob O'Reilly <[email protected]>,blah' can not be matched against dot-atom format
+        // hence the try/catch block, to allow finding the root cause.
+        try {
+            $to = Header\To::fromString('To:' . $header);
+        } catch (InvalidArgumentException $e) {
+            $this->fail('Header\To::fromString should not throw. Exception message: ' . $e->getMessage());
+        }
+
+        $addressList = $to->getAddressList();
+        $this->assertTrue($addressList->has('[email protected]'));
+        $this->assertTrue($addressList->has('[email protected]'));
+        $this->assertEquals("Bob O'Reilly", $addressList->get('[email protected]')->getName());
+    }
 }