Question

import System.Directory
import qualified Data.ByteString as BS  
import qualified Data.ByteString.UTF8 as BS_UTF8

main = do
    putStrLn "Input path to some file: "
    raw_inputed_path <- BS.getLine
    let inputed_path = BS_UTF8.toString raw_inputed_path
    such_file_exists <- doesFileExist inputed_path
    such_directory_exists <- doesDirectoryExist inputed_path
    if such_file_exists 
        then putStrLn "Yeah, I see it!"
        else if such_directory_exists
            then putStrLn "Aha, I see it, but it s a directory!"
            else putStrLn "Hmm... No such..."

该法典只与ASCII-paths合作。但是,如果我使用带有非ASCII符号的路径,doesFileExist 和doesDirectoryExist 总是<代码>False。为什么?

Debian GNU/Linux 6.0 x86_64
ghc 6.12.1

Answer 1

升至7.x系列——现在有6.12位已经接近3年。这种行为在一年前就确定。

友情链接