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    • CSA ISO/IEC 14651:21

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    CSA ISO/IEC 14651:21

    Information technology - International string ordering and comparison - Method for comparing character strings and description of the common template tailorable ordering (Adopted ISO/IEC 14651:2020, sixth edition, 2020-12)

    SKU: 2701787 Published by CSA Group Publication Year 2021

    Product Details

    • Preface/Scope
    • Items Included

    CSA Preface


    Standards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the SCC Mirror Committee (SMC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T).


    This Standard supersedes CSA ISO/IEC 14651:20 (adopted ISO/IEC

    14651:2019).


    This Standard has been formally approved, without modification, by the Technical Committee and has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.


    Scope


    This document defines the following.


    — A reference comparison method. This method is applicable to two character strings to determine their collating order in a sorted list. The method can be applied to strings containing characters from the full repertoire of ISO/IEC 10646. This method is also applicable to subsets of that repertoire, such as those of the different ISO/IEC 8-bit standard character sets, or any other character set, standardized or not, to produce ordering results valid (after tailoring) for a given set of languages for each script. This method uses collation tables derived either from the Common Template Table defined in this document or from one of its tailorings. This method provides a reference format. The format is described using the Backus-Naur Form (BNF). This format is used to describe the Common Template Table. The format is used normatively within this document.


    — A Common Template Table. A given tailoring of the Common Template Table is used by the reference comparison method. The Common Template Table describes an order for all characters encoded in the Unicode 13.0 standard,[27] included in ISO/IEC 10646:2020. It allows for a specification of a fully deterministic ordering. This table enables the specification of a string ordering adapted to local ordering rules, without requiring an implementer to have knowledge of all the different scripts already encoded in the Universal Coded Character Set (UCS).


    NOTE 1 This Common Template Table is to be modified to suit the needs of a local environment. The main worldwide benefit is that, for other scripts, often no modification is required and the order will remain as consistent as possible and predictable from an international point of view.


    NOTE 2 The character repertoire used in this document is equivalent to that of the Unicode Standard version 13.0[27].


    — A reference name. The reference name refers to this particular version of the Common Template Table, for use as a reference when tailoring. In particular, this name implies that the table is linked to a particular stage of development of the ISO/IEC 10646 Universal coded character set.


    — Requirements for a declaration of the differences (delta) between the collation table and the Common Template Table.


    This document does not mandate the following.


    — A specific comparison method; any equivalent method giving the same results is acceptable.


    — A specific format for describing or tailoring tables in a given implementation.


    — Specific symbols to be used by implementations, except for the name of the Common Template Table.


    — Any specific user interface for choosing options.


    — Any specific internal format for intermediate keys used when comparing, nor for the table used. The use of numeric keys is not mandated either.


    — A context-dependent ordering.


    — Any particular preparation of character strings prior to comparison.


    NOTE 1 It is normally necessary to do preparation of character strings prior to comparison even if it is not prescribed by this document (see Annex C).


    NOTE 2 Annex D describes problems that gave way to this International Standard with their anticipated solutions.

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    CSA ISO/IEC 14651:21

    Information technology - International string ordering and comparison - Method for comparing character strings and description of the common template tailorable ordering (Adopted ISO/IEC 14651:2020, sixth edition, 2020-12)

    Active
    English

    CSA ISO/IEC 14651:F21

    Technologies de l'information - Classement international et comparaison de chaînes de caractères - Méthode de comparaison de chaînes de caractères et description du modèle commun et adaptable d'ordre de classement (norme ISO/IEC 14651:2020 adoptée, sixième édition, 2020-12)

    Active
    French

    CSA ISO/IEC 14651:20

    Information technology - International string ordering and comparison - Method for comparing character strings and description of the common template tailorable ordering (Adopted ISO/IEC 14651:2019, fifth edition, 2019-01)

    Withdrawn
    English

    CSA ISO/IEC 14651:F20

    Technologies de l'information - Classement international et comparaison de chaînes de caractères - Méthode de comparaison de chaînes de caractères et description du modèle commun et adaptable d'ordre de classement (norme ISO/IEC 14651:2019 adoptée, cinquième édition, 2019-01)

    Withdrawn
    French

    CAN/CSA-ISO/IEC 14651A:18

    Amendment 1:2018 to CAN/CSA-ISO/IEC 14651:18, Information technology - International string ordering and comparison - Method for comparing character strings and description of the common template tailorable ordering (Adopted amendment 1:2017 to ISO/IEC 14651:2016)

    Withdrawn
    English

    CAN/CSA-ISO/IEC 14651:18

    Information technology - International string ordering and comparison - Method for comparing character strings and description of the common template tailorable ordering (Adopted ISO/IEC 14651:2016, fourth edition, 2016-02-15, corrected version 2016-05-01)

    Withdrawn
    English

    CAN/CSA-ISO/IEC 14651:F18

    Technologies de l'information - Classement international et comparaison de chaînes de caractères - Méthode de comparaison de chaînes de caractères et description du modèle commun et adaptable d'ordre de classement (norme ISO/IEC 14651:2016 adoptée, quatrième édition, 2016-02-15)

    Withdrawn
    French

    CAN/CSA-ISO/IEC 14651A:13 (R2017)

    Amendment 1:2014 to CAN/CSA-ISO/IEC 14651:13, Information technology - International string ordering and comparison - Method for comparing character strings and description of the common template tailorable ordering (Adopted amendment 1:2012 to ISO/IEC 14651:2011)

    Withdrawn
    English

    CAN/CSA-ISO/IEC 14651:13 (R2017)

    Information technology - International string ordering and comparison - Method for comparing character strings and description of the common template tailorable ordering (Adopted ISO/IEC 14651:2011, third edition, 2011-08-15)

    Withdrawn
    English

    CAN/CSA-ISO/CEI 14651:F13 (C2017)

    Technologies de l'information - Classement international et comparaison de chaînes de caractères - Méthode de comparaison de chaînes de caractères et description du modèle commun et adaptable d'ordre de classement (norme ISO/CEI 14651:2011 adoptée, troisième édition, 2011- 08-15)

    Withdrawn
    French

    CAN/CSA-ISO/IEC 14651A:F13 (C2017)

    Modification 1:2014 de CAN/CSA-ISO/CEI 14651:13, Technologies de l'information - Classement international et comparaison de chaînes de caractères - Méthode de comparaison de chaînes de caractères et description du modèle commun et adaptable d'ordre de classement (amendement 1:2012 adoptée de la norme ISO/CEI 14651:2011)

    Withdrawn
    French

    CAN/CSA-ISO/IEC 14651A-08

    Amendment 1:2010 to CAN/CSA-ISO/IEC 14651-08, Information technology - International string ordering and comparison - Method for comparing character strings and description of the common template tailorable ordering - Amendment 1 (Adopted Amendment 1:2009 to ISO/IEC 14651:2007)

    Withdrawn
    English

    CAN/CSA-ISO/CEI 14651A-F08

    Modification 1:2010 de CAN/CSA-ISO/CEI 14651-08, Technologies de l'information - Classement international et comparaison de chaînes de caractères - Méthode de comparaison de chaînes de caractères et description du modèle commun et adaptable d'ordre de classement - Amendement 1 (Amendement 1:2009 adoptée de la norme ISO/CEI 14651:2007)

    Withdrawn
    French

    CAN/CSA-ISO/IEC 14651-08

    Information technology - International string ordering and comparison - Method for comparing character strings and description of the common template tailorable ordering (Adopted ISO/IEC 14651:2007, second edition, 2007-12-01)

    Withdrawn
    English

    CAN/CSA-ISO/CEI 14651-F08

    Technologies de l'information - Classement international et comparaison de chaînes de caractères - Méthode de comparaison de chaînes de caractères et description du modèle commun et adaptable d'ordre de classement (norme ISO/CEI 14651:2007, deuxième édition, 2007-12-01)

    Withdrawn
    French

    CAN/CSA-ISO/IEC 14651A-02

    Amendment 1:2004 to CAN/CSA-ISO/IEC 14651-02, Information Technology - International String Ordering and Comparison - Method for Comparing Character Strings and Description of the Common Template Tailorable Ordering (Adopted Amendment 1:2003 to ISO/IEC 14651:2001)

    Withdrawn
    English

    CAN/CSA-ISO/IEC 14651B-02

    Amendment 2:2006 to CAN/CSA-ISO/IEC 14651:02, Information Technology - International String Ordering and Comparison - Method for Comparing Character Strings and Description of the Common Template Tailorable Ordering (Adopted Amendment 2:2005 to ISO/IEC 14651:2001)

    Withdrawn
    English

    CAN/CSA-ISO/IEC 14651-02

    Information Technology - International String Ordering and Comparison - Method for Comparing Character Strings and Description of the Common Template Tailorable Ordering (Adopted ISO/IEC 14651:2001, first edition, 2001-02-15)

    Withdrawn
    English

    CAN/CSA-ISO/CEI 14651A-F02

    Amendement 1:2004 de CAN/CSA-ISO/CEI 14651-02, Technologies de l'information - Classement international et comparaison de chaînes de caractères - Méthode de comparaison de chaînes de caractères et description du modèle commun et adaptable d'ordre de classement (Amendement 1:2003 de norme ISO/CEI 14651:2001 adoptée)

    Withdrawn
    French

    CAN/CSA-ISO/CEI 14651B-F02

    Modification 2:2006 de CAN/CSA-ISO/CEI 14651-02, Technologies de l'information - Classement international et comparaison de chaînes de caractères - Méthode de comparaison de chaînes de caractères et description du modèle commun et adaptable d'ordre de classement (Amendement 2:2005 de norme ISO/CEI 14651:2001 adoptée)

    Withdrawn
    French
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