[Haskell-cafe] Core packages and locale support

Felipe Lessa felipe.lessa at gmail.com
Sat Jun 26 20:58:58 EDT 2010

On Sun, Jun 27, 2010 at 02:55:33AM +0300, Roman Beslik wrote:
>  On 26.06.10 15:44, Felipe Lessa wrote:
> >However, suppose your program needs to create a file with a name
> >based on a database information.  Your database is UTF-8.  How do
> >you translate that UTF-8 data into a filepath?  This is the
> >problem we got in Haskell.  We have a nice coding-agnostic String
> >datatype, but we don't know how to create a file with this very
> >name.
> It is simple — you recode from (database | "network server" | file)
> encoding to the current locale.

Recoding is indeed very simple.  You know the source coding
(e.g. your database is in UTF-8).  But how do you discover the
target coding?  How can you find out that this system uses
ISO8859-1, while this other one uses UTF-16, while...?

See the problem now? :)



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