|251||Proposed Change to Casing Property for Some Circled or Squared Latin Letter Symbols||2013.10.28|
|Informal Discussion:||Unicode Mail List (Join)|
|Formal Feedback:||Contact Form|
|Resolution:||UTC will make the Characters in the
three ranges U+1F130..U+1F149, U+1F150..U+1F169, U+1F170..U+1F189 to
be Uppercase and Alphabetic for Unicode 7.0
2013-09-25 Note: This change was postponed past Unicode 6.3 for reconsideration, to avoid a potential violation of property value stability guarantees.
Description of Issue:
The UTC is planning to adjust the casing properties for some circled or squared Latin letter symbols:
U+1F150 ( ) NEGATIVE CIRCLED LATIN CAPITAL LETTER A
.. U+1F169 ( ) NEGATIVE CIRCLED LATIN CAPITAL LETTER Z
U+1F170 ( ) NEGATIVE SQUARED LATIN CAPITAL LETTER A
.. U+1F189 ( ) NEGATIVE SQUARED LATIN CAPITAL LETTER Z
U+1F18A ( ) CROSSED NEGATIVE SQUARED LATIN CAPITAL LETTER P
These characters currently do not have the Uppercase property. The proposed change is to give them the Other_Uppercase property value in PropList.txt in the UCD, so that they would (by derivation) also get the Uppercase property.
Rationale: These Latin letter symbols are quite similar to ones such as U+24B6 CIRCLED LATIN CAPITAL LETTER A. Most of their properties are identical, and they are weighted analogously for collation--being treated for collation as if they were uppercase letters. As a result, there is no apparent reason for the inconsistency in the assignment of the Uppercase property value for the more recently encoded Latin letter symbols in the U+1F100 block.
The UTC is seeking feedback on this suggested change and information regarding any implementations which might be impacted by making the change.
For information about how to discuss this issue and how to supply formal feedback, please see the feedback and discussion instructions. The accumulated feedback received so far on this issue is shown below, or you can look at a full page view.