2002-02-16 21:38:40 +00:00
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<TITLE>Numeric reply indication in FTN subject lines.</TITLE>
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<PRE>
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**********************************************************************
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FTSC FIDONET TECHNICAL STANDARDS COMMITTEE
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**********************************************************************
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Publication: FSP-1002
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Revision: 2
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Title: Numeric reply indication in FTN subject lines
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Author: Odinn Sorensen, 2:236/77
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Revision Date: 19 October 1997
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Expiry Date: 11 October 1999
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----------------------------------------------------------------------
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Contents:
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1. Scope
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2. Format
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3. Reply procedure
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----------------------------------------------------------------------
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Status of this document
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-----------------------
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This document is a Fidonet Standards Proposal (FSP).
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This document specifies an optional Fidonet standard protocol for
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the Fidonet community, and requests discussion and suggestions for
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improvements.
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This document is released to the public domain, and may be used,
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copied or modified for any purpose whatever.
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Abstract
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--------
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When making a reply to a message, there are currently three common
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ways to handle the subject line:
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1. Don't change it.
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2. Insert the string "Re: " in front of it.
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3. Insert the string "Re^n: " in front of it, where 'n' is increased
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by one if the original subject was already a reply.
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This document concerns itself with specifying the third variant.
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1. Scope
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--------
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This standard is specified for all FTN messages. Implementations
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will typically be message editors and other software that creates
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replies to messages.
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2. Format
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---------
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The format is "Re^n: ", where n is an unsigned integer number with
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one or more digits. The range of the number must be at least 0 to
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255. Negative numbers are not allowed. Note that there must be a
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space after the colon. The letters are not case sensitive, but
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uppercase 'R' and lowercase 'e' is recommended.
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3. Reply procedure
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------------------
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When making a reply that conforms to this specification, this
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procedure, or a functionally identical one, must be followed:
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1. If the original subject does not have a leading "Re: " or
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"Re^n: ", put the string "Re: " in front of it. Don't use a
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number here.
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Example: "Hello world" -> "Re: Hello world"
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2. If the original subject has a leading "Re: ", put the string
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"Re^2: " in front of the subject.
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Example: "Re: Hello world" -> "Re^2: Hello world"
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3. If the original subject has a leading "Re^n: ", increase the
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number 'n' by one and modify the subject accordingly.
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Example: "Re^4: Hello world" -> "Re^5: Hello world"
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Notes:
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* The numbers 0 and 1 should not occur in the "Re^n: " string under
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normal circumstances, but a robust implementation should just
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increase the number in any case.
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* The number should not be increased beyond the range of the number
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type used in the implementation, or in other words, it should not
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roll around to zero. If it can't be increased, leave it alone.
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* When inserting the "Re: " or "Re^n: " string in front of the
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subject, information from the end might be lost, because the
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message storage or packet formats use fixed length subject fields.
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Intelligent subject-based reply linking software should be aware
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of this and try to link correctly anyway.
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A. Author contact data
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----------------------
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Odinn Sorensen
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Fidonet: 2:236/77
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E-mail: odinn@goldware.dk
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WWW: http://www.goldware.dk
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B. History
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----------
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Rev.1, 971011: First release.
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Rev.2, 971019: Added note that "Re" is not case sensitive.
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**********************************************************************
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</PRE>
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