Ruby

Check if a MIME Entity is Multipart

Demonstrates the Chilkat Mime.IsMultipart method, which returns whether the Content-Type begins with multipart/. It takes no arguments.

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

Background: The first question when processing a message is usually whether it is a single part or a container of parts, because that decides whether you read the body directly or iterate children. IsMultipart answers it for any of the multipart subtypes at once; use the more specific predicates when the exact subtype matters.

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Ruby

require 'chilkat'

success = false

#  Demonstrates the Mime.IsMultipart method, which returns whether the Content-Type begins with multipart/.  It takes no arguments.

mime = Chilkat::CkMime.new()
success = mime.LoadMimeFile("qa_data/multipart_message.eml")
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

if (mime.IsMultipart())
    print "This is a multipart entity." + "\n";
else
    print "This is not a multipart entity." + "\n";
end