Node.js
Examing the MIME Nesting Structure

Demonstrates the GetStructure method to examine the nesting structure of a MIME document. The MIME data file used in this example is available at MIME Sample File.
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function chilkatExample() {

    var success = false;

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    var mime = new chilkat.Mime();

    success = mime.LoadMimeFile("qa_data/mime/sampleMime.txt");
    if (success !== true) {
        console.log(mime.LastErrorText);
        return;
    }

    //  Examine the structure in text format:
    var txtStruct = mime.GetStructure("text");
    console.log(txtStruct);

    //  The MIME structure as indented text is:
    //  multipart/alternative
    //      text/plain
    //      multipart/related
    //          text/html
    //          image/jpeg
    //  

    //  Now examine the structure in XML format:
    var xmlStruct = mime.GetStructure("xml");
    console.log(xmlStruct);

    //  The MIME structure as XML is:
    //  <multipart-alternative>
    //      <text-plain />
    //      <multipart-related>
    //          <text-html />
    //          <image-jpeg />
    //      </multipart-related>
    //  </multipart-alternative>

    //  --------------------------------------------------------------
    //  The MIME sample file loaded at the beginning of this example
    //  contains the following MIME:

    //  Subject: Test email.
    //  Content-Type: multipart/alternative;
    //  	boundary="------------DB171738719FB06D67DEBAA0"
    //  MIME-Version: 1.0
    //  
    //  --------------DB171738719FB06D67DEBAA0
    //  Content-Type: text/plain; charset="utf-8"; format=flowed
    //  Content-Transfer-Encoding: 7bit
    //  
    //  This is a test.
    //  
    //  --------------DB171738719FB06D67DEBAA0
    //  Content-Type: multipart/related;
    //  	boundary="------------A940F1230E6F0105F03DB2CB"
    //  
    //  --------------A940F1230E6F0105F03DB2CB
    //  Content-Type: text/html; charset="utf-8"
    //  Content-Transfer-Encoding: 8bit
    //  
    //  <html><head>
    //  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    //    </head>
    //    <body bgcolor="#FFFFFF" text="#000000">
    //      <p>This is a test.&nbsp; <img src="cid:part1.E16AE3B4.1505C436@chilkatsoft.com" height="20" width="20"></p>
    //    </body>
    //  </html>
    //  
    //  --------------A940F1230E6F0105F03DB2CB
    //  Content-Type: image/jpeg; name="starfish20.jpg"
    //  Content-Transfer-Encoding: base64
    //  Content-ID: <part1.E16AE3B4.1505C436@chilkatsoft.com>
    //  Content-Disposition: inline; filename="starfish20.jpg"
    //  
    //  /9j/4AAQSkZJRgABAQEASABIAAD//gAmRmlsZSB3cml0dGVuIGJ5IEFkb2JlIFBob3Rvc2hvcD8g
    //  NC4w/9sAQwAQCwwODAoQDg0OEhEQExgoGhgWFhgxIyUdKDozPTw5Mzg3QEhcTkBEV0U3OFBtUVdf
    //  YmdoZz5NcXlwZHhcZWdj/9sAQwEREhIYFRgvGhovY0I4QmNjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj
    //  Y2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj/8IAEQgAFAAUAwERAAIRAQMRAf/EABcAAAMBAAAA
    //  AAAAAAAAAAAAAAIDBAX/xAAYAQADAQEAAAAAAAAAAAAAAAABAgMEAP/aAAwDAQACEAMQAAAB2kZY
    //  NNEijWKddfTmLgALWH//xAAbEAACAgMBAAAAAAAAAAAAAAABAgMRAAQSE//aAAgBAQABBQL0XqN+
    //  pM2aqJGMiqFFCyg7z//EABwRAAICAgMAAAAAAAAAAAAAAAERAAIQIQMSUf/aAAgBAwEBPwHqU5aq
    //  Axx+y1tMQl4elj//xAAcEQEAAQUBAQAAAAAAAAAAAAABEQACEBIhA1H/2gAIAQIBAT8B3Bhqy7Zc
    //  enyiwmGgDhiOzj//xAAdEAABAwUBAAAAAAAAAAAAAAABAAIREBIhIkFR/9oACAEBAAY/ArZyn+Cg
    //  xtxWuJaoCnqDuin/xAAcEAABBAMBAAAAAAAAAAAAAAABABEhYRAxQVH/2gAIAQEAAT8hkEwPUUR9
    //  DYfE4nxtRpIkBTsayuALIiuY/9oADAMBAAIAAwAAABDWPTsf/8QAGhEAAwADAQAAAAAAAAAAAAAA
    //  AAEREDFBIf/aAAgBAwEBPxC0DVPcWm+Ce4OesrkE6bjH/8QAGBEBAQEBAQAAAAAAAAAAAAAAAREA
    //  QRD/2gAIAQIBAT8QahMiOc8YgSrnTY3ELclHXn//xAAcEAEBAAIDAQEAAAAAAAAAAAABEQAhMUFx
    //  EFH/2gAIAQEAAT8Qn3igmSZSj+c4N4zapMy9IjFV98wncN2iuLFsCEbDGxQkI6RO/n//2Q==
    //  
    //  --------------A940F1230E6F0105F03DB2CB--
    //  
    //  --------------DB171738719FB06D67DEBAA0--
    //  

}

chilkatExample();