String != [Char]
ARJANEN Loïc Jean David
arjanen.loic at gmail.com
Sun Mar 18 20:29:27 CET 2012
Le 17/03/2012 02:44, Greg Weber a écrit :
> the text library and Text data type have shown the worth in real world
> Haskell usage with GHC.
> I try to avoid String whenever possible, but I still have to deal with
> conversions and other issues.
> There is a lot of real work to be done to convert away from [Char],
> but I think we need to take it out of the language definition as a
> first step.
> I can only see one issue with the proposal: it can be convenient to
> operate on a list of characters.
> But I think there are plenty of solutions at our disposal. A simple
> conversion from Text to a list of characters might suffice. In GHC,
> OverloadedStrings means users would still be free to use String the
> same way they are now.
Good point, but rather than specifying in the standard that the new
string type should be the Text datatype, maybe the new definition should
be that String is a newtype with suitable operations defined on it, and
perhaps a typeclass to convert to and from this newtype. The reason of
my remark is although most implementations compile to native code, an
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