Internationalized Resource Identifiers (IRIs)

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Document Type Active Internet-Draft (iri WG)
Last updated 2012-03-02
Replaces draft-duerst-iri-bis
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Internationalized Resource Identifiers                         M. Duerst
(iri)                                           Aoyama Gakuin University
Internet-Draft                                               M. Suignard
Obsoletes: 3987 (if approved)                         Unicode Consortium
Intended status: Standards Track                             L. Masinter
Expires: September 3, 2012                                         Adobe
                                                           March 2, 2012

             Internationalized Resource Identifiers (IRIs)


   This document defines the Internationalized Resource Identifier (IRI)
   protocol element, as an extension of the Uniform Resource Identifier
   (URI).  An IRI is a sequence of characters from the Universal
   Character Set (Unicode/ISO 10646).  Grammar and processing rules are
   given for IRIs and related syntactic forms.

   Defining IRI as new protocol element (rather than updating or
   extending the definition of URI) allows independent orderly
   transitions: other protocols and languages that use URIs must
   explicitly choose to allow IRIs.

   Guidelines are provided for the use and deployment of IRIs and
   related protocol elements when revising protocols, formats, and
   software components that currently deal only with URIs.

   This document is part of a set of documents intended to replace RFC

RFC Editor: Please remove the next paragraph before publication.

   This (and several companion documents) are intended to obsolete RFC
   3987, and also move towards IETF Draft Standard.  For discussion and
   comments on these drafts, please join the IETF IRI WG by subscribing
   to the mailing list, archives at  For a list of open
   issues, please see the issue tracker of the WG at  For a list of
   individual edits, please see the change history at

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

Duerst, et al.          Expires September 3, 2012               [Page 1]
Internet-Draft                    IRIs                        March 2012

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   This Internet-Draft will expire on September 3, 2012.

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Duerst, et al.          Expires September 3, 2012               [Page 2]
Internet-Draft                    IRIs                        March 2012

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  5
     1.1.   Overview and Motivation . . . . . . . . . . . . . . . . .  5
     1.2.   Applicability . . . . . . . . . . . . . . . . . . . . . .  6
     1.3.   Definitions . . . . . . . . . . . . . . . . . . . . . . .  7
     1.4.   Notation  . . . . . . . . . . . . . . . . . . . . . . . .  8
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