Adding Unicode operators to D [use cases]

[Bill Baxter]

On Wed, Oct 29, 2008 at 4:12 AM, Andrei Alexandrescu
<SeeWebsiteForEmail at erdani.org> wrote:
> Sergey Gromov wrote:
>>
>> Don wrote:
>>>
>>> If you could completely ignore keyboard and display issues, and use any
>>> unicode character as an operator, which ones would you actually use?
>>
>> I'd use dot "⋅" and cross "×" products for 3D, union "∪" and
>> intersection "∩", subset "⊂" and superset "⊃" and their negative forms.
>>  I don't think I'd use anything else.
>>
>> Well, comparisons look better when converted into appropriate unicode.
>
> In my opinion, a workable feature is this:
>
> * Functions can be defined with a leading backspace. They will be usable
> with the infix notation.

Did you mean backslash?  I hope you're not suggesting we write
^HinfixOperator. :-)

> * There is a way of specifying that precedence of a function defined as
> above is the same as precedence of a built-in operator.

Workable, but it ain't what Walter calls parsing.

> * Functions of which name is the same as an HTML entity name for a symbol
> can be replaced with the actual symbol.

--bb