Re: [Haskell-cafe] accents

On Friday 07 May 2010 17:05:08, Dupont Corentin wrote:

Hello, i'm still struggling with ghci and accents.

Prelude> "é" "\233"

That uses the Show instance of Char, which escapes all characters greater than '\127' ('\DEL'), so that's no problem, jut inconvenient.

I've installed GHC 6.12.1, which gave me a better result:

Prelude> putStrLn "é" é

putStrLn doesn't escape printable characters.

but still:

Prelude> "é" "\233"

That's interpreted as print "é" which is putStrLn (show "é") , hence escaped.

I'm trying to search a file with french words with Regex, but i stumble on accents:

*Main> findRegexFile "abnégation" [] *Main> findRegexFile "abn.gation" ["abn\218gation","abn\218gations"]

Okay, your file seems to have a weird encoding. Prelude> putStrLn [toEnum 218] Ú

I don't know the encoding of my file, how to deduce it? What is the encoding used by ghci? Unicode?

I think it uses the system locale and defaults to utf-8 if it can't determine the locale.

Its seems not be the same since the représentation for "é" is not the same (\233 and \218). How to have accented characters in ghci? Can't find any ressources on the net.

Cheers, Corentin

PS: please let me know is you can't see the accented characters in this email, i'll send you another version with pictures.

On 3/24/10, Ivan Lazar Miljenovic wrote:

...

Dupont Corentin writes:

...

...

a <- readFile "list.txt" head $ lines a

"abn\233gation"

putStrLn displays a strange character for the "é".

That is the escaped form of é. You have several options:

1) Use the utf8-string package for I/O 2) Use the text package for I/O (and set an encoding) 3) GHC 6.12.1 uses the system's locale for encoding; as such if your system normally lets you see accented characters then putStrLn, etc. will print them out.