> On Jan 11, 2017, at 07:43, Karl Wagner via swift-evolution
> <[email protected]> wrote:
>
>
>> On 11 Jan 2017, at 14:08, Tuur Anton via swift-evolution
>> <[email protected]> wrote:
>>
>> I often have related variables. Would be nice to just add ' like I can in
>> Haskell:
>>
>> let foo = "asdf"
>> let foo' = "asdf2"
>>
>> What do you think?
>>
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>
> Ooooh… the mathematician in me would love that.
>
> let foo = …
> let foo’ = …
> let foo’’ = …
> let foo’’’ = …
>
> But I suspect the additional complexity to the parser isn’t worth it. When
> are two bars just two bars, and when are they an empty string literal?
I can't think of any instances where it'd be ambiguous... An empty character
literal tacked on to the end of an identifier is a syntax error, right?
Likewise if you've got an empty literal just hanging out in the middle of a
statement, that's a syntax error as well. "=", "(", and such are all invalid
identifier characters, so you couldn't name something that might be confused
with an assignment or anything... I can't speak to the difficulty of
implementing this, but I don't think it'd break anything. OTOH, I woke up about
5 minutes ago and haven't had my coffee yet.
My inner mathematician would be very happy indeed... +1
- Dave Sweeris
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