Tuesday, August 30, 2011

PRI #203: Proposed Update UTS #10: Unicode Collation Algorithm

The Unicode Technical Committee has posted a new issue for public review and comment. Details are on the following web page:


Review period for the new item closes on October 24, 2011.

Please see the page for links to discussion and relevant documents. Briefly, the new issue is:

PRI #203 Proposed Update for UTS #10: Unicode Collation Algorithm

This proposed update aligns with Unicode 6.1, and includes the following changes:

  • A major revision to the ordering of variable characters into groups, separating punctuation and symbols. Some other characters have changed ordering as well.
  • A new option for sorting, IgnoreSP, that ignores (shifts) only whitespace and punctuation (and not general symbols)
  • Clarifications or fixes to text on soft-hyphen, contiguous weights, and collation grapheme clusters.
  • A new section on asymmetric search.
  • Review notes for new UCA verification tables, and several other areas where the text will be changed.
To supply feedback on this issue, see
http://www.unicode.org/review/#feedback .