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MIME Content Types in Media Feature Expressions (RFC2913)

IP.com Disclosure Number: IPCOM000005095D
Original Publication Date: 2000-Sep-01
Included in the Prior Art Database: 2001-Aug-15
Document File: 10 page(s) / 16K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Klyne: AUTHOR

Abstract

In "A Syntax for Describing Media Feature Sets", an expression format is presented for describing media feature capabilities using simple media feature tags.

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This is the abbreviated version, containing approximately 20% of the total text.

Network Working Group G. Klyne Request for Comments: 2913 Content Technologies Category: Standards Track September 2000

MIME Content Types in Media Feature Expressions

Status of this Memo

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (2000). All Rights Reserved.

Abstract

In "A Syntax for Describing Media Feature Sets", an expression format is presented for describing media feature capabilities using simple media feature tags.

This memo defines a media feature tag whose value is a Multipurpose Internet Mail Extensions (MIME) content type. This allows the construction of feature expressions that take account of the MIME content type of the corresponding data.

Table of Contents

1. Introduction .................................................. 2

1.1 Terminology and document conventions ...................... 2 2. Motivation and goals .......................................... 3 3. MIME content type feature tag ................................. 3 4. Examples ...................................................... 4 4.1 Simple text ............................................... 4 4.2 Fax image ................................................. 4 4.3 Voice message ............................................. 4

4.4 Web browser capabilities .................................. 5 5. IANA Considerations ........................................... 5 6. Security Considerations ....................................... 5 7. Acknowledgements .............................................. 5 8. References .................................................... 6 9. Author's Address .............................................. 6 Appendix A: 'Type' feature tag registration ...................... 7 Full Copyright Statement ......................................... 9

Klyne Standards Track [Page 1]

RFC 2913 MIME Content in Media Feature Expressions September 2000

1. Introduction

In "A Syntax for Describing Media Feature Sets" [1], an expression format is presented for describing media feature capabilities as a combination of simple media feature tags, registered according to "Media Feature Tag Registration Procedure" [2]. This provides a format for message handling agents to describe the media feature content of messages that they can handle.

This memo defines a media feature tag whose value is a MIME content type. This allows the construction of feature expressions that take account of the MIME content type of the corresponding data.

Note that a content type feature value may contain parame...