RFC 2738 (rfc2738) - Page 2 of 5

Corrections to "A Syntax for Describing Media Feature Sets"

RFC 2738        Corrections to Syntax for Media Features   December 1999


1. Introduction

   In RFC 2533, "A Syntax for Describing Media Feature Sets" [1], an
   expression format is presented for describing media feature
   capabilities using simple media feature tags.  This provides a format
   for message handling agents to describe the media feature content of
   messages that they can handle.  That memo also describes an algorithm
   for finding the common capabilities expressed by two different
   feature expressions.

   This memo contains two corrections to that specification:  one fixes
   an error in the formal syntax specification, and the other fixes an
   error in the feature set matching algorithm, in the rules for
   reducing feature comparison predicates.

   The first of these corrections affects the normative content of RFC
   2533;  the second affects non-normative content.

1.1 Terminology and document conventions

   This specification uses syntax notation and conventions described in
   RFC 2234, "Augmented BNF for Syntax Specifications: ABNF" [2].

       NOTE:  Comments like this provide additional nonessential
       information about the rationale behind this document.  Such
       information is not needed for building a conformant
       implementation, but may help those who wish to understand the
       design in greater depth.

1.2 Discussion of this document

   Discussion of this document should take place on the content
   negotiation and media feature registration mailing list hosted by the
   Internet Mail Consortium (IMC).

   Please send comments regarding this document to:

       

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Klyne                       Standards Track