fix mime words in address headers (fixes #14)

__tests__/extract.test.ts

@@ -16,13 +16,13 @@ Some message.`);
       from: {
         name: 'A',
         address: '[email protected]',
-        raw: 'A <[email protected]>',
+        raw: '"A" <[email protected]>',
       },
       to: [
         {
           name: 'B',
           address: '[email protected]',
-          raw: 'B <[email protected]>',
+          raw: '"B" <[email protected]>',
         },
       ],
       subject: 'Hello world!',
@@ -138,4 +138,34 @@ iVBORw0KGgoAAAANSUhEUgAAAAgAAAAIAQMAAAD+wSzIAAAABlBMVEX///+/v7+jQ3Y5AAAADklEQVQI
     );
     expect(output.attachments?.[0]?.filename).toBe('test.png');
   });
+
+  // https://github.com/mat-sz/letterparser/issues/14
+  it('should handle mime words in from/to headers', () => {
+    const output =
+      extract(`Subject: =?utf-8?Q?Cancelled_Reservation_-_Automation_-_C's_Location;_Sensors;_Sensor2_-_CEDITtest?=
+To: "=?utf-8?Q?qaautomation@xxxystemsdev=2Eonmicrosoft=2Ecom?=" <[email protected]>
+From: "=?utf-8?Q?sgmh@xxx=2Elocal?=" <[email protected]>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=utf-8
+
+Some message.`);
+
+    expect(output).toMatchObject({
+      text: 'Some message.',
+      from: {
+        name: '[email protected]',
+        address: '[email protected]',
+        raw: '"[email protected]" <[email protected]>',
+      },
+      to: [
+        {
+          name: '[email protected]',
+          address: '[email protected]',
+          raw: '"[email protected]" <[email protected]>',
+        },
+      ],
+      subject:
+        "Cancelled Reservation - Automation - C's Location; Sensors; Sensor2 - CEDITtest",
+    });
+  });
 });

src/extractor.ts

@@ -1,3 +1,4 @@
+import { decodeMimeWords } from 'lettercoder';
 import { unquote } from './helpers.js';
 import {
   LetterparserNode,
@@ -106,11 +107,13 @@ function extractMailbox(raw: string): LetterparserMailbox {
   const addressEnd = raw.lastIndexOf('>');
   if (addressStart !== -1 && addressEnd !== -1) {
     const address = unquote(raw.substring(addressStart + 1, addressEnd).trim());
-    let name = unquote(raw.substring(0, addressStart).trim());
+    const name = decodeMimeWords(
+      unquote(raw.substring(0, addressStart).trim())
+    );
     return {
       address,
       name,
-      raw,
+      raw: `"${name}" <${address}>`,
     };
   } else {
     return {