[swift-evolution] [Proposal] Refining Identifier and Operator Symbology

[Benjamin Spratling]

Brackets and symbols are definitely operators.  Different brackets are used to represent various quantum mechanical forms and operations.
Arrows are also useful as operators, including but not restricted to chemical reactions.

-Ben

Sent from my iPhone.

> On Oct 21, 2016, at 7:20 AM, Ben Rimmington via swift-evolution <swift-evolution at swift.org> wrote:
> 
> 
>> On 20 Oct 2016, at 15:29, Jonathan S. Shapiro wrote:
>> 
>> Quick poll as a sanity check on a possible alternative for operators:
>> 
>> If we admitted [:Sm:] and [:So:] and the traditional ASCII operator characters, would that cover the things that people currently feel passionate about? That would almost certainly be compliant with UAX31 once it settles, and I think it covers all of the cases people have raised here.
> 
> I'd exclude [:So:], arrows, brackets and "Miscellaneous Mathematical Symbols B".
> 
>    [:Math_Symbol:]
>    - [:name=/\bANGLE\b/:]
>    - [:name=EMPTY SET:]
>    - [:name=INFINITY:]
>    - [:Emoji:]
>    - [:ID_Continue:]
>    - [:NFC_Quick_Check=No:]
>    & [:Script_Extensions=Common:]
>    & [[:Block=Latin_1_Supplement:]
>       [:Block=General_Punctuation:]
>       [:Block=Mathematical_Operators:]
>       [:Block=Miscellaneous_Mathematical_Symbols_A:]
>       [:Block=Supplemental_Mathematical_Operators:]]
> 
> <http://www.unicode.org/cldr/utility/list-unicodeset.jsp?a=%5B%3AMath_Symbol%3A%5D%0D%0A-+%5B%3Aname%3D%2F%5CbANGLE%5Cb%2F%3A%5D%0D%0A-+%5B%3Aname%3DEMPTY+SET%3A%5D%0D%0A-+%5B%3Aname%3DINFINITY%3A%5D%0D%0A-+%5B%3AEmoji%3A%5D%0D%0A-+%5B%3AID_Continue%3A%5D%0D%0A-+%5B%3ANFC_Quick_Check%3DNo%3A%5D%0D%0A%26+%5B%3AScript_Extensions%3DCommon%3A%5D%0D%0A%26+%5B%5B%3ABlock%3DLatin_1_Supplement%3A%5D%0D%0A+++%5B%3ABlock%3DGeneral_Punctuation%3A%5D%0D%0A+++%5B%3ABlock%3DMathematical_Operators%3A%5D%0D%0A+++%5B%3ABlock%3DMiscellaneous_Mathematical_Symbols_A%3A%5D%0D%0A+++%5B%3ABlock%3DSupplemental_Mathematical_Operators%3A%5D%5D>
> 
> Is there a property to test for "pictographic" characters?
> 
> -- Ben
> 
> _______________________________________________
> swift-evolution mailing list
> swift-evolution at swift.org
> https://lists.swift.org/mailman/listinfo/swift-evolution