Get a Summary of the MIME Structure

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Demonstrates the Chilkat Mime.GetStructure method, which returns a concise summary of the MIME tree. The only argument selects the format: xml for XML, or text (the default for any other value) for a plain-text outline.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: A real message can nest multipart containers several levels deep — a multipart/mixed holding a multipart/alternative of text and HTML plus attachments — and GetStructure renders that hierarchy at a glance without the full content. It is the fast way to understand or debug an unfamiliar message's layout, in either a readable text outline or machine-parseable XML.

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    success := false

    //  Demonstrates the Mime.GetStructure method, which returns a concise summary of the MIME tree.
    //  The only argument selects the output format: "xml" for XML, or "text" (the default) for a
    //  plain-text outline.

    mime := chilkat.NewMime()

    success = mime.LoadMimeFile("qa_data/multipart_message.eml")
    if success == false {
        fmt.Println(mime.LastErrorText())
        mime.DisposeMime()
        return
    }

    //  Get a human-readable text outline of the MIME structure.
    structure := mime.GetStructure("text")
    if mime.LastMethodSuccess() == false {
        fmt.Println(mime.LastErrorText())
        mime.DisposeMime()
        return
    }

    fmt.Println(*structure)

    mime.DisposeMime()