Ruby

Count the Messages in a multipart/digest Email

Demonstrates the read-only Chilkat Email.NumDigests property, which is the number of message/rfc822 parts contained within a multipart/digest enclosure. If no such enclosure exists, the value is 0. Digest indexes are zero-based; use GetDigestEmail to retrieve an individual bundled message as its own Email object. This example loads a digest email and lists each message's subject.

Background: A multipart/digest is a way to package many separate emails inside one carrier message — historically used by mailing lists to send a single daily "digest" containing all of that day's posts. Each bundled item is a complete message/rfc822 email with its own headers and body. This differs from NumAttachedMessages, which counts nested messages attached to an ordinary email rather than the members of a digest enclosure.

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Ruby

require 'chilkat'

success = false

#  Demonstrates the read-only Email.NumDigests property, which is the number of
#  message/rfc822 parts contained within a multipart/digest enclosure.  If there is no
#  multipart/digest enclosure, the value is 0.  Digest indexes are zero-based.

email = Chilkat::CkEmail.new()

#  Load a multipart/digest email (a single email that bundles many messages).
success = email.LoadEml("qa_data/eml/digest.eml")
if (success == false)
    print email.lastErrorText() + "\n";
    exit
end

n = email.get_NumDigests()
print "NumDigests = " + n.to_s() + "\n";

#  Retrieve each bundled message as its own Email object.
digestEmail = Chilkat::CkEmail.new()

for i in 0 .. n - 1
    success = email.GetDigestEmail(i,digestEmail)
    print "Digest " + i.to_s() + " subject: " + digestEmail.subject() + "\n";
end

#  Note: Paths such as "qa_data/..." are relative local filesystem paths,
#  relative to the current working directory of the running application.