[Haskell-cafe] Re: Unicode vs. System.Directory

[Andy Stewart]

Hi Arie,

If you don't mind binding code.
You can try to use GIO APIs from my repository:
http://patch-tag.com/r/AndyStewart/gio-branch/home

GIO APIs handle unicode filename every well, and cross-platform.

Cheers,

  -- Andy

Arie Peterson <ariep at xs4all.nl> writes:

> After upgrading to haskell-platform-2010.1.0.0, with the improved unicode
> support for IO in ghc-6.12, I hoped to be able to deal with filenames
> containing non-ascii characters. This still seems problematic, though:
>
> $ ls
> m×n♯α
> $ ghci
> GHCi, version 6.12.1: http://www.haskell.org/ghc/  :? for help
> Prelude> :m +System.Directory 
> Prelude System.Directory> getDirectoryContents "." >>= mapM_ putStrLn
> ..
> mÃnâ¯Î±
> .
>
> I hope this passes through the various email systems unharmed; on my
> terminal, the output of 'ls' contains shiny unicode characters, while
> 'ghci' garbles up the filename. (My locale is en_GB.utf8.)
>
> Similar problems arise with functions such as 'copyFile', which refuses to
> handle filenames with non-ascii characters (unless wrapping it with
> encoding functions).
>
>
> Is this a known problem? I searched ghc's trac, but there are no relevant
> bugs for the component 'libraries/directory'.
>
>
> I have parts of a unicode-aware layer on top of System.Directory laying
> around somewhere. I was rather hoping to ditch it, but I can polish it and
> put it on hackage, if people are interested.
>
>
> Kind regards,
>
> Arie