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

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Copyright Notice

   Copyright (c) 2011 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Internet-Draft    Encoding the graphemes of SignWriting     January 2011

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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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