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New in Unicode

New in Unicode. Mark Davis, John Jenkins. Agenda . Unicode 4.1.0 UCA 4.1.0 Regular Expressions Security Considerations Character Mapping Common Locale Data Repository Expanded Role for Consortium. Unicode 4.1.0. Released 2005 March 31 New Characters New Unicode Character Database

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New in Unicode

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  1. New in Unicode Mark Davis, John Jenkins

  2. Agenda • Unicode 4.1.0 • UCA 4.1.0 • Regular Expressions • Security Considerations • Character Mapping • Common Locale Data Repository • Expanded Role for Consortium

  3. Unicode 4.1.0 • Released 2005March 31 • New Characters • New Unicode Character Database • New Specifications

  4. 1,273 New Characters • Roundtripping for HKSCS and GB 18030 • Five new currency signs • Additional characters for Indic and Korean • Eight new scripts

  5. Changes in the Standard • Conformance Changes • Modifications to Default Case Operations • Clarification of Decomposition Mappings • Other Changes • SPACE not recommended as base for nonspacing marks • Use of CGJ to prevent reordering, prevent contractions in sorting/matching (UCA) • Positioning of Meteg • Rendering of Thai Combining Marks

  6. Unicode Character Database • Determines the behavior of characters in modern software: • Alphabetics, Letters, Numbers, Identifiers, Scripts, … • New properties • Grapheme_Cluster_Break, Sentence_Break, Word_Break, Pattern_Syntax, and Pattern_White_Space • Revised Property Values • Eg Alphabetic ⊃ ( Lowercase ∪ Uppercase ) • Expanded documentation • Each release now complete, not delta

  7. New Specifications • UAX #31: Identifier and Pattern Syntax • Basis for Backwards-Compatible Identifiers • Programming Languages • Resources and Services • Basis for Stable Syntax characters • Whitespace • Operators • UAX #34: Unicode Named Character Sequences • Mechanism for identifying/naming significant sequences • Standardized list

  8. Major Revisions in Annexes • UAX #15: Unicode Normalization Forms • Correction for Idempotency Problem • Enhanced discussion of Hangul • UAX #14: Line Breaking Properties • Modifications for Hangul • Changes because SPACE not recommended as base for nonspacing marks • Separated all suggested tailorings into separate section • UAX #29: Text Boundaries • Using new properties, adding Joiner/Non-Joiner • Modifications to Word -Break

  9. UTS #10: Unicode Collation Algorithm • Basis for language-sensitive sorting, searching, and matching • Synchronized with Unicode 4.1.0 • New: • Characters • Revised Weights • Specification: matching, ignorables, Thai, …

  10. UTS #18: Unicode Regular Expressions • Regular expressions used widely in programs, for matching patterns (eg Wildcards) • Unicode expands the scope drastically • Explicit Conformance Clauses • POSIX-Conformance

  11. UAX #36: Unicode Security • Incorrect usage of Unicode can expose programs or systems to possible security attacks! Examples: • Numbers: ৪୨ = 42 ! • Bengali {০ ১ ২ ৩ ৪ ৫ ৬ ৭ ৮ ৯}, Oriya {୦ ୧ ୨ ୩ ୪ ୫ ୬ ୭ ୮ ୯}. • Domain Names:

  12. Character Mapping ML • XML format for the interchange of mapping data for character encodings and aliases. • Promoted to Unicode Technical Standard; with new Conformance section (2). • Added explicit text about multi-character mappings.

  13. Common Locale Data Repository Δευτέρα, 05 Σεπτεμβρίου 2005 • Common, necessary software locale data for world languages • XML format for effective interchange Montag, 5. September 2005 1 234,57руб. ￥1,234.57 Arabic – arabski Bulgarian – bułgarski Czech – czeski … Africa – 非洲Central America – 中美洲 Eastern Africa – 东非 Northern Africa – 北非 … AED – د.إ.‏ BHD – د.ب. DZD – د.ج.‏ EGP – ج.م.‏ EUR – € … Z < Å

  14. Typical Locale Data • Dates/time formats • Number/Currency formats • Measurement Systems • Collation Specifications (UCA-based) • Used for sorting, searching, matching • Tailorings of translated names for language, territory, script, timezones, currencies, … • ...

  15. Latest Release: CLDR 1.3 • 296 locales: 96 languages, 130 territories • Languages: Afar [Qafar]; Afrikaans; Albanian [shqipe]; Amharic [አማርኛ]; Arabic [‎العربية‎]; Armenian [Հայերէն]; … • Territories: Afghanistan [‎افغانستان‎]; Albania [Shqipëria]; Algeria [‎الجزائر‎]; Argentina; Armenia [Հայաստանի Հանրապետութիւն]; Australia; Austria [Österreich]; Azerbaijan [Azərbaycan, Азәрбајҹан]; … • Complete set of generated POSIX-format data • Plus tool to generate versions tuned for different platforms. • Expanded locale data • Timezone localizations • Including UN M.49 continents and regions • Many other revisions and additions of data • New Tests & Tools

  16. Expanded Role for Consortium • Dedicated to the goal that all the world's languages can be used on computers everywhere, from mobile phones to mainframes. • Providing the fundamental specifications for full software globalization, full interoperability

  17. Full Members

  18. Institutional & Supporting Members (New Membership Categories)

  19. Associate Members

  20. Center of Computer and Information Development (CCID), Beijing, China High Council of Informatics (HCI), Iran Information and Communication Technology Agency of Sri Lanka (ICTA) The International Forum for Information Technology in Tamil (INFITT) The Internet Engineering Task Force (IETF) ISO/IEC JTC1/SC2 and WG2 Linguistic Society of America (LSA) National Endowment for the Humanities (NEH) National Information Standards Organization (NISO) NSAI/ICTSCC/SC4:Irish standardization: Codes, Character Sets, and Int’lization Open I18n.org: The Free standards Group Open Internationalization Initiative Research Institute for ILCAA, Tokyo University of Foreign Studies Research Institute for the Languages of Finland (RILF) Special Libraries Association (SLA ) Technical Committee on Information Technology (TCVN/TC1), Hanoi, Viet Nam United Nations Group of Experts on Geographical Names (UNGEGN) World Wide Web Consortium - W3C I18N Core Working Group Liaison Members

  21. Unicode Technical Committee • Multiple Globalization Standards • The Unicode Standard, including UAXes • Unicode Technical Standards: Collation, … • Unicode Technical Notes: Best Practices, Background Information • Quarterly F2F Meetings • Email Discussion

  22. CLDR Technical Committee • Meetings • Short, frequent: Telecon + Instant Messaging • Email Discussion • Data • All additions / revisions in bug database • Anyone can file; committee assesses, vets

  23. Why Join? • Support the technology • That enables your success in international, technical, and emerging markets. • Protect your investment • The stability you need • The extensions you require • The developments you call for: security, … • Demonstrate your leadership • For the goal that all the world's languages can be used on computers everywhere, from mobile phones to mainframes.

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