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This article needs to be updated. The reason given is: The standard is now known as ISO/IEC 14651:2020 (the sixth edition of the standard). Please help update this article to reflect recent events or newly available information.
Last update: September 2018 (July 2021) |
ISO/IEC 14651:2016, Information technology -- International string ordering and comparison -- Method for comparing character strings and description of the common template tailorable ordering, is an International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC) standard specifying an algorithm that can be used when comparing two strings. This comparison can be used when collating a set of strings. The standard also specifies a datafile specifying the comparison order, the Common Tailorable Template, CTT. The comparison order is supposed to be tailored for different languages (hence the CTT is regarded as a template and not a default, though the empty tailoring, not changing any weighting, is appropriate in many cases), since different languages have incompatible ordering requirements. One such tailoring is European ordering rules (EOR), which in turn is supposed to be tailored for different European languages.
The Common Tailorable Template (CTT) data file of this ISO/IEC standard is aligned with the Default Unicode Collation Entity Table (DUCET) datafile of the Unicode collation algorithm (UCA) specified in Unicode Technical Standard #10.
This is the fourth edition of the standard and was published on 2016-02-15, corrected on 2016-05-01 and covers up to and including Unicode 8.0. One additional amendment Amd.1:2017 was published in September 2017 and covers up to and including Unicode 9.0.
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