Re: [elixir-core:11071] [Proposal] Support Unicode Mathematical Symbols Block as user-defined operators

[José Valim]

I believe it is unlikely we will add Unicode _operators_.

We may support mathematical characters as Unicode identifiers, depending on
the use-case. :)

On Sat, Sep 17, 2022 at 4:43 AM Kip  wrote:

> Today Elixir allows a very flexible set of Unicode characters to form part
> of an identifier (there is a Unicode standard for this).  There is a
> limited set of reserved operators permitted as well.
>
> This proposal seeks to assess if there is any support to some or all of
> the Unicode Mathematical Symbols block to the list of allowed user defined
> operators.
>
> * The increased focus on numerical computation in Elixir could benefit
> from an expressive set of operators
>
> * Certain operators like the "set" (element, union, intersection, )
> operators reflect the list/set operations in common use in Elixir across
> enumerables, lists, map sets and maps.
>
> * Certain mathematical expressions are more readily expressed with infix
> notation (especially when the implementation represents a formula from
> published works). I am finding this to be true in my own work in Image
> (image processing) and Tempo (time expressions).  I suspect this would be
> true for numerical computations in Nx but have not validated this.
>
> * These operators do no clash with any existing operators so would not
> introduce backward compatibility issues and would require minimal changes
> to the Elixir lexer (an assumption by me)
>
>1. Mathematical Symbols
>
> 
>
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> .
>

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[elixir-core:11071] [Proposal] Support Unicode Mathematical Symbols Block as user-defined operators

[Kip]

Today Elixir allows a very flexible set of Unicode characters to form part 
of an identifier (there is a Unicode standard for this).  There is a 
limited set of reserved operators permitted as well.

This proposal seeks to assess if there is any support to some or all of the 
Unicode Mathematical Symbols block to the list of allowed user defined 
operators.

* The increased focus on numerical computation in Elixir could benefit from 
an expressive set of operators

* Certain operators like the "set" (element, union, intersection, ) 
operators reflect the list/set operations in common use in Elixir across 
enumerables, lists, map sets and maps.

* Certain mathematical expressions are more readily expressed with infix 
notation (especially when the implementation represents a formula from 
published works). I am finding this to be true in my own work in Image 
(image processing) and Tempo (time expressions).  I suspect this would be 
true for numerical computations in Nx but have not validated this.

* These operators do no clash with any existing operators so would not 
introduce backward compatibility issues and would require minimal changes 
to the Elixir lexer (an assumption by me)

   1. Mathematical Symbols 
   

   

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