标准编号：ISO/IEC 14651:2020
中文名称：信息技术 国际字符串排序和比较 比较字符串的方法和通用模板的可定制排序的描述
英文名称：Information technology — International string ordering and comparison — Method for comparing character strings and description of the common template tailorable ordering
发布日期：2020-12
标准范围
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 . 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, 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 s
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 s, often no modification is required and the order will remain as
consistent as possible and predictable from an international point of view.
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