SS-ISO/IEC-14651 Information technology - International string ordering and comparison - Method for comparing character strings and description of the common template tailorable ordering (ISO/IEC 14651:2007 incl Amd 1:2009, IDT)

SS-ISO/IEC-14651 - 2010+Amd 1:2010 EDITION - CURRENT


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This International Standard defines the followings. • 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, standardised 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 International Standard 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 International Standard. • 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 ISO/IEC 10646:2003 up to Amendment 2, plus characters DEVANAGARI LETTER GGA, DEVANAGARI LETTER JJA, DEVANAGARI LETTER DDDA and DEVANAGARI LETTER BBA (characters U097B, U097C, U097E and U097F, respectively). 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 UCS.

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Designation Name

SS-ISO/IEC 14651:2010+Amd 1:2010

Revision Level

2010+Amd 1:2010 EDITION

Status

Current

Publication Date

Feb. 8, 2010

Language(s)

English

Page Count

60

International Equivalent

ISO/IEC 14651:2007(IDT)