Excerpts from Joey Hess's message of Sex Fev 11 13:39:08 -0200 2011: (...) > It can be as simple as software written trusting language documentation > that says "strings are processed in unicode" and doesn't point out all > the exceptions that can let non-unicode data in. For example, this > simple haskell program processess a file's content utf-8 cleanly, but > prints its name like "foö". > > import System.Environment > main = do > args <- getArgs > let file = head args > putStrLn $ "file is: " ++ file > putStr =<< readFile file > > This program has an entirely different failure mode; type in > "foö" (touch it first), and it will complain that "fo�" doesn't exist. > > main = getLine >>= readFile >>= putStr > > Neither of these failure modes is obvious from any documentation I've seen. > Both of these programs are something a typical developer would expect to > work. (Both also have unexpected failure modes when LANG=C.) http://hackage.haskell.org/trac/ghc/ticket/3307 Greetings. (...)
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