Encoding the graphemes of the SignWriting Script with the x-ISWA-2010
draft-slevinski-iswa-2010-00
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None V. Sutton
Internet-Draft Center for Sutton Movement Writing
Intended status: Informational S. Slevinski
Expires: July 5, 2011 Individual
January 1, 2011
Encoding the graphemes of the SignWriting Script with the x-ISWA-2010
draft-slevinski-iswa-2010-00
Abstract
For concreteness, because the universal character set is not yet
universal, because an undocumented and unlabeled coded character set
hampers information interchange, a 12-bit coded character set has
been created that encodes the graphemes of the SignWriting script as
described in the open standard of the International SignWriting
Alphabet 2010. The x-ISWA-2010 coded character set is defined with
hexadecimal characters and described with Unicode characters, either
proposed characters on plane 1 or interchange characters on plane 15.
This memo defines a standard coded character set for the Internet
community. It is published for reference, examination,
implementation, and evaluation. Distribution of this memo is
unlimited.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on July 5, 2011.
Copyright Notice
Copyright (c) 2011 IETF Trust and the persons identified as the
document authors. All rights reserved.
Sutton & Slevinski Expires July 5, 2011 [Page 1]
Internet-Draft Encoding the graphemes of SignWriting January 2011
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
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Sutton & Slevinski Expires July 5, 2011 [Page 2]
Internet-Draft Encoding the graphemes of SignWriting January 2011
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4
1.2. Background . . . . . . . . . . . . . . . . . . . . . . . 5
1.3. Overview . . . . . . . . . . . . . . . . . . . . . . . . 6
2. Script . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1. Grapheme . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2. Cluster . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3. Text . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4. Viewpoints, Planes, & Perspectives . . . . . . . . . . . 9
3. Symbolset . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1. Grapheme . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2. Symbol . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3. Hierarchy . . . . . . . . . . . . . . . . . . . . . . . . 13
4. Symbol Encoding . . . . . . . . . . . . . . . . . . . . . . . 15
4.1. Characters . . . . . . . . . . . . . . . . . . . . . . . 15
4.2. Combined Character Sequence . . . . . . . . . . . . . . . 17
4.3. Validity . . . . . . . . . . . . . . . . . . . . . . . . 19
5. Unicode Integration . . . . . . . . . . . . . . . . . . . . . 21
5.1. Proposal . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2. Interchange . . . . . . . . . . . . . . . . . . . . . . . 23
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 26
7. Security Considerations . . . . . . . . . . . . . . . . . . . 27
Appendix A. ISWA 2010 Data . . . . . . . . . . . . . . . . . . . 27
A.1. Categories . . . . . . . . . . . . . . . . . . . . . . . 27
A.2. Groups . . . . . . . . . . . . . . . . . . . . . . . . . 29
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