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The text/enriched MIME Content-type (RFC1523)

IP.com Disclosure Number: IPCOM000002354D
Original Publication Date: 1993-Sep-01
Included in the Prior Art Database: 2000-Sep-12
Document File: 12 page(s) / 30K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

N. Borenstein: AUTHOR

Abstract

MIME [RFC-1341, RFC-1521] defines a format and general framework for the representation of a wide variety of data types in Internet mail. This document defines one particular type of MIME data, the text/enriched type, a refinement of the "text/richtext" type defined in RFC 1341. The text/enriched MIME type is intended to facilitate the wider interoperation of simple enriched text across a wide variety of hardware and software platforms.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 10% of the total text.

Network Working Group N. Borenstein

Request for Comments: 1523 Bellcore

Category: Informational September 1993

The text/enriched MIME Content-type

Status of this Memo

This memo provides information for the Internet community. It does

not specify an Internet standard. Distribution of this memo is

unlimited.

Abstract

MIME [RFC-1341, RFC-1521] defines a format and general framework for

the representation of a wide variety of data types in Internet mail.

This document defines one particular type of MIME data, the

text/enriched type, a refinement of the "text/richtext" type defined

in RFC 1341. The text/enriched MIME type is intended to facilitate

the wider interoperation of simple enriched text across a wide

variety of hardware and software platforms.

The Text/enriched MIME type

In order to promote the wider interoperability of simple formatted

text, this document defines an extremely simple subtype of the MIME

content-type "text", the "text/enriched" subtype. This subtype was

designed to meet the following criteria:

1. The syntax must be extremely simple to parse, so that even

teletype-oriented mail systems can easily strip away the

formatting information and leave only the readable text.

2. The syntax must be extensible to allow for new formatting

commands that are deemed essential for some application.

3. If the character set in use is ASCII or an 8- bit ASCII

superset, then the raw form of the data must be readable enough

to be largely unobjectionable in the event that it is displayed

on the screen of the user of a non-MIME-conformant mail reader.

4. The capabilities must be extremely limited, to ensure that

it can represent no more than is likely to be representable by

the user's primary word processor. While this limits what can

be sent, it increases the likelihood that what is sent can be

properly displayed.

This document defines a new MIME content-type, "text/enriched". The

content-type line for this type may have one optional parameter, the

"charset" parameter, with the same values permitted for the

"text/plain" MIME content-type.

The syntax of "text/enriched" is very simple. It represents text in

a single character set -- US-ASCII by default, although a different

character set can be specified by the use of the "charset" parameter.

(The semantics of text/enriched in non-ASCII character sets are

discussed later in this document.) All characters represent

themselves, with the exception of the "<" character (ASCII 60), which

is used to mark the beginning of a formatting command. Formatting

instructions consist of formatting commands surrounded by angle

brackets ("<>", ASCII 60 and 62). Each formatting command may be no

more than 60 characters in l...