[Haskell-beginners] Unicode characters in function names: some don't work?

[Tim Perry]

I think it has something to do with which unicode symbols are punctuation.

Check out this StackOverflow answer:
http://stackoverflow.com/questions/10548170/what-characters-are-permitted-for-haskell-operators


On Wed, Apr 13, 2016 at 12:33 PM, Silent Leaf <silent.leaf0 at gmail.com>
wrote:

> Hi!
>
> say I wanna use "—" as new infix operator: it's the big dash used a bit
> like parenthesis, especially at the end of sentences —like this.
>
> in ghci directly:
> Prelude> let (—) a b = a + b
>
> No problem, is accepted and usable. Same in files.
>
> Now I try using (»), a French (amongst others) punctuation sign, typically
> replaces the quote-ends, « like this ».
> Doesn't work:
> <interactive>:2:6: lexical error at character '\187'
>
> I thought Haskell was Unicode-friendly? Why some symbols but not others?
> :'(
> _______________________________________________
> Beginners mailing list
> Beginners at haskell.org
> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/beginners/attachments/20160413/fce39c6d/attachment.html>