PureBasic

Get a Summary of the MIME Structure

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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PureBasic

IncludeFile "CkMime.pb"

Procedure ChilkatExample()

    success.i = 0

    ;  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.i = CkMime::ckCreate()
    If mime.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkMime::ckLoadMimeFile(mime,"qa_data/multipart_message.eml")
    If success = 0
        Debug CkMime::ckLastErrorText(mime)
        CkMime::ckDispose(mime)
        ProcedureReturn
    EndIf

    ;  Get a human-readable text outline of the MIME structure.
    structure.s = CkMime::ckGetStructure(mime,"text")
    If CkMime::ckLastMethodSuccess(mime) = 0
        Debug CkMime::ckLastErrorText(mime)
        CkMime::ckDispose(mime)
        ProcedureReturn
    EndIf

    Debug structure


    CkMime::ckDispose(mime)


    ProcedureReturn
EndProcedure