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- Newsgroups: news.newusers.questions
- Path: sparky!uunet!cs.utexas.edu!asuvax!ennews!news
- From: sridhar@asuvax.eas.asu.edu (Sridhar Venkataraman )
- Subject: Re: What is in the references field?
- Message-ID: <1992Dec29.021720.4179@ennews.eas.asu.edu>
- Sender: news@ennews.eas.asu.edu (USENET News System)
- Organization: ASU, Valley of the Sun(s), AZ
- References: <kZLiwB4w164w@tweekco.uucp> <105730@bu.edu>
- Date: Tue, 29 Dec 1992 02:17:20 GMT
- Lines: 42
-
- samer@bass.bu.edu (Samer Faraj) writes:
-
- )I am doing research on group interaction on the net and need help
- )understanding some of the header data provided in each message.
-
- The header has to obey RFC 1036 - ftp.uu.net: /inet/rfc/rfc1036.txt
- and present in several other locations.
-
- )It seems that if I am responding to a previous post, the previous
- )post's unique identifier gets appended to the REFERENCES field. Is
- )this always the case?
-
- Yes, that is right.
-
- )How many characters can the REFERENCES line include?
-
- If the RFC doesn't define this, I assume that it is infinite.:-)
-
- )In many cases, subthreads are generated by people changing
- )the SUBJECT field, does this impact the "referencing" action?
-
- This is newsreader-dependent. trn notices the subject change but
- does have it as part of the thread that the References header points
- to.
-
- )Finally, many discussions or wars in a group entail the exchange of
- )30 or 40 messages. However, the reference field only includes 6
- )identifiers at most. How come?
-
- Usually the last part (or identifier as you indicate) is enough to
- determine which thread a particular posting belongs to but the
- availability of additional identifiers is advantageous when the
- previous posting hasn't yet arrived at a site or is cancelled etc. But
- that is entirely newsreader-dependent.
-
- Try following the way trn and GNUS thread. That should explain
- everything about the functions of Message-ID and References headers.
- Experiment on a local test newsgroup with either of the newsreaders.
-
- Sridhar.
- --
- Sridhar Venkataraman sridhar@asuvax.eas.asu.edu
-