RFC3236 The 'application/xhtml+xml' Media Type
3236 The 'application/xhtml+xml' Media Type. M. Baker, P. Stark. January 2002. (Format: TXT=16750 bytes) (Status: INFORMATIONAL)
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参照
Network Working Group M. Baker
Request for Comments: 3236 Planetfred, Inc.
Category: Informational P. Stark
Ericsson Mobile Communications
January 2002
The 'application/xhtml+xml' Media Type
Status of this Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2002). All Rights Reserved.
Abstract
This document defines the 'application/xhtml+xml' MIME media type for
XHTML based markup languages; it is not intended to obsolete any
previous IETF documents, in particular RFC 2854 which registers
'text/html'.
1. Introduction
In 1998, the W3C HTML working group began work on reformulating HTML
in terms of XML 1.0 [XML] and XML Namespaces [XMLNS]. The first part
of that work concluded in January 2000 with the publication of the
XHTML 1.0 Recommendation [XHTML1], the reformulation for HTML 4.01
[HTML401].
Work continues in the Modularization of XHTML Recommendation
[XHTMLM12N], the decomposition of XHTML 1.0 into modules that can be
used to compose new XHTML based languages, plus a framework for
supporting this composition.
This document only registers a new MIME media type,
'application/xhtml+xml'. It does not define anything more than is
required to perform this registration.
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RFC 3236 The 'application/xhtml+xml' Media Type January 2002
This document follows the convention set out in [XMLMIME] for the
MIME subtype name; attaching the suffix "+xml" to denote that the
entity being described conforms to the XML syntax as defined in XML
1.0 [XML].
This document was prepared by members of the W3C HTML working group
based on the structure, and some of the content, of RFC 2854, the
registration of 'text/html'. Please send comments to www-
html@w3.org, a public mailing list (requiring subscription) with
archives at
Intended usage: COMMON
Author/Change controller:
The XHTML specifications are a work product of the World Wide Web
Consortium's HTML Working Group. The W3C has change control over
these specifications.
3. Fragment identifiers
URI references (Uniform Resource Identifiers, see [RFC2396] as
updated by [RFC2732]) may contain additional reference information,
identifying a certain portion of the resource. These URI references
end with a number sign ("#") followed by an identifier for this
portion (called the "fragment identifier"). Interpretation of
fragment identifiers is dependent on the media type of the retrieval
result.
For documents labeled as 'text/html', [RFC2854] specified that the
fragment identifier designates the correspondingly named element,
these were identified by either a unique id attribute or a name
attribute for some elements. For documents described with the
application/xhtml+xml media type, fragment identifiers share the same
syntax and semantics with other XML documents, see [XMLMIME], section
5.
At the time of writing, [XMLMIME] does not define syntax and
semantics of fragment identifiers, but refers to "XML Pointer
Language (XPointer)" for a future XML fragment identification
mechanism. The current specification for XPointer is available at
http://www.w3.org/TR/xptr. Until [XMLMIME] gets updated, fragment
identifiers for XHTML documents designate the element with the
corresponding ID attribute value (see [XML] section 3.3.1); any XHTML
element with the "id" attribute.
4. Encoding considerations
By virtue of XHTML content being XML, it has the same considerations
when sent as 'application/xhtml+xml' as does XML. See [XMLMIME],
section 3.2.
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RFC 3236 The 'application/xhtml+xml' Media Type January 2002
5. Recognizing XHTML files
All XHTML documents will have the string " (or
).
[MIME] Freed, N. and N. Borenstein, "Multipurpose Internet Mail
Extensions (MIME) Part Two: Media Types", RFC 2046,
November 1996.
[URI] Berners-Lee, T., Fielding, R. and L. Masinter, "Uniform
Resource Identifiers (URI): Generic Syntax", RFC 2396,
August 1998.
[XHTML1] "XHTML 1.0: The Extensible HyperText Markup Language: A
Reformulation of HTML 4 in XML 1.0", W3C Recommendation.
Available at .
[XML] "Extensible Markup Language (XML) 1.0", W3C
Recommendation. Available at (or ).
[TEXTHTML] Connolly, D. and L. Masinter, "The 'text/html' Media
Type", RFC 2854, June 2000.
[XMLMIME] Murata, M., St.Laurent, S. and D. Kohn, "XML Media
Types", RFC 3023, January 2001.
[XHTMLM12N] "Modularization of XHTML", W3C Recommendation. Available
at:
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RFC 3236 The 'application/xhtml+xml' Media Type January 2002
11. Full Copyright Statement
Copyright (C) The Internet Society (2002). All Rights Reserved.
This document and translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it
or assist in its implementation may be prepared, copied, published
and distributed, in whole or in part, without restriction of any
kind, provided that the above copyright notice and this paragraph are
included on all such copies and derivative works. However, this
document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
copyrights defined in the Internet Standards process must be
followed, or as required to translate it into languages other than
English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Acknowledgement
Funding for the RFC Editor function is currently provided by the
Internet Society.
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