[Haskell-cafe] Core packages and locale support
Roman Beslik
beroal at ukr.net
Sun Jun 27 03:11:59 EDT 2010
On 27.06.10 03:58, Felipe Lessa wrote:
> 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? :)
No! The target encoding is the current locale. It is a no-brainer to
find it. Use your Unix.
$ man setlocale
$ locale
--
Best regards,
Roman Beslik.
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