Network Working Group                                          M. Murata
Internet-Draft                               Japan Electronic Publishing
Intended status: Informational                               Association
Expires: November 18, 2012                                  May 17, 2012


        Representing phonetics for Japanese names in Atom feeds
                     draft-murata-atom-phonetics-02

Abstract

   This specification introduces an attribute for representing phonetics
   for Japanese names such as author names and article titles.  It is
   intended to be used together with the Atom Syndication Format
   [RFC4287] and OPDS(Open Publication Distribution System)[OPDS], which
   is based on Atom.

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1.  Introduction

   The Japanese language uses kanji (CJK ideographic characters) and
   kana(Japanese phonetic characters).  A human name or article title is
   often represented by two strings: one with kanji and another without
   kanji.  The latter is used to uniquely identify the phonetics of the
   human name or article title.  More about this issue, see [Miyazawa].

   The Atom Syndication Format [RFC4287] does not provide mechanisms for
   representing a name in more than one language or script.  This
   specification introduces an attribute for representing the phonetics
   for a Japanese author name or article title.  This attribute is
   intended to be used together with the Atom Syndication Format and
   OPDS(Open Publication Distribution System)[OPDS], which is based on
   Atom.




































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2.  The phonetics attribute

      _Namespace:_ http://www.jepa.or.jp/xmlns/atomPhonetics/1.0

      _Local name:_ phonetics

      _Parent element:_ atom:name, atom:title, and atom:subTitle

      _Cardinality:_ 0 or 1

      _Permissible values:_ Strings in the Japanese language without CJK
      ideographic characters.  Such strings typically consists of
      Katakana or Hiragana characters but may include digits, symbols
      and Latin alphabets.  [NDL] gives one way to create the phonetics
      of a given name and shows commonly used characters for phonetics.

2.1.  Example

   <feed
        xmlns="http://www.w3.org/2005/Atom"
        xmlns:jepa="http://www.jepa.or.jp/xmlns/atomPhonetics/1.0">
     <title
          jepa:phonetics="XML&#x30cb;&#x30e5;&#x30a6;&#x30e2;&#x30f3;"
                              >XML&#x5165;&#x9580;
     </title>
     <author>
         <name jepa:phonetics="&#x30e0;&#x30e9;&#x30bf;"
                         >&#x6751;&#x7530;</name>
     </author>
      ...
   </feed>

   "&#x30cb;&#x30e5;&#x30a6;&#x30e2;&#x30f3;" and "&#x30e0;&#x30e9;&#
   x30bf;" are Katakana strings, while "&#x5165;&#x9580;" and
   "&#x6751;&#x7530;" are CJK ideographic character strings.
















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3.  RELAX NG schema

   Although the original schema (atom.rnc) allows any foreign attribute,
   the following schema is provided as an extension of the original
   schema for explicitly allowing and further mandating the phonetics
   attribute.  Instead of the original schema, this schema MAY be used
   for validating atom feeds having phonetics.

 namespace atom = "http://www.w3.org/2005/Atom"
 namespace jepa = "http://www.jepa.or.jp/xmlns/atomPhonetics/1.0"
 namespace local = ""
 include "atom.rnc" {
     undefinedAttribute =
         attribute * - (xml:base | xml:lang | local:* | jepa:*) { text }
     atomPersonConstruct =
         atomCommonAttributes,
         (element atom:name {attribute jepa:phonetics {text }?, text }
           & element atom:uri { atomUri }?
           & element atom:email { atomEmailAddress }?
           & extensionElement*)
     atomTitle =
         element atom:title
               {attribute jepa:phonetics { text }?, atomTextConstruct }
     atomSubtitle =
         element atom:subtitle
               {attribute jepa:phonetics {text }?, atomTextConstruct }
 }
























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4.  Schematron schema

   This schematron also mandates the phonetics attribute.  This schema
   MAY be used for validating atom feeds having phonetics.  It MAY be
   used together with the original schema (atom.rnc) or schemas for
   OPDS.

   <?xml version="1.0" encoding="UTF-8"?>
   <schema xmlns="http://purl.oclc.org/dsdl/schematron"
       xmlns:atom="http://www.w3.org/2005/Atom"
       xmlns:jepa="http://www.jepa.or.jp/xmlns/atomPhonetics/1.0">
       <ns prefix="atom" uri="http://www.w3.org/2005/Atom"/>
       <ns prefix="jepa"
           uri="http://www.jepa.or.jp/xmlns/atomPhonetics/1.0"/>
       <pattern >
           <rule context="atom:*[@jepa:phonetics]">
               <let name="ln" value="local-name()"/>
               <assert test="($ln='name')
                              or ($ln='title')
                              or ($ln = 'subTitle') "
                   >The jepa:phonetics attribute is allowed only
                    for atom:name, atom:title, and atom:subTitle
                    elements.</assert>
           </rule>
       </pattern>
   </schema>

























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5.  Security Considerations

   There are no new issues beyond those shown in [RFC4287].
















































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6.  References

6.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC4287]  Nottingham, M., Ed. and R. Sayre, Ed., "The Atom
              Syndication Format", RFC 4287, December 2005.

   [Miyazawa]
              Miyazawa, A., "Parallel writing in East Asian languages
              and its representation in metadata in light of the DCMI
              Abstract Model, Int'l Conf. on Dublin Core and Metadata
              Applications", 2007, <http://dcpapers.dublincore.org/
              index.php/pubs/article/view/863/859>.

6.2.  Informative References

   [OPDS]     "Open Publication Distribution System",
              <http://opds-spec.org/>.

   [NDL]      "On phonetics (in Japanese)",
              <http://www.ndl.go.jp/jp/library/data/yomi.html>.



























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Appendix A.  Acknowldgements

   The author is grateful to Hiroshi Hoshi, Ando Kazuhiro, Akira
   Miyazawa, Akimoto Ryoji, Masayoshi Takahashi, Hiroshi Takase, and
   Toshiyuki Takashima for their feedbacks.














































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Author's Address

   MURATA Makoto (FAMILY Given)
   Japan Electronic Publishing Association

   Email: eb2m-mrt@asahi-net.or.jp
   URI:   http://www.asahi-net.or.jp/~eb2m-mrt/












































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