Difference between revisions of "UTF-8"
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(question - what about other string encodings?) |
Tomjaguarpaw (talk | contribs) (Deleting page that hasn't been updated for over 10 years) |
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| − | [[Category:Code]] |
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| − | The simplest solution seems to be to use the [http://hackage.haskell.org/cgi-bin/hackage-scripts/package/utf8-string utf8-string package] from Galois. It |
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| − | provides a drop-in replacement for System.IO |
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| − | ''What about other string encodings?'' |
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| − | == Example == |
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| − | If we use a function from System.IO.UTF8, we should also hide the equivalent one from the Prelude. (Alternatively, we could import the UTF8 module qualified) |
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| − | <haskell> |
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| − | > import System.IO.UTF8 |
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| − | > import Prelude hiding (readFile, writeFile) |
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| − | > import System.Environment (getArgs) |
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| − | </haskell> |
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| − | The readFile and writeFile functions are the same as before... |
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| − | <haskell> |
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| − | > main :: IO () |
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| − | > main = |
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| − | > do args <- getArgs |
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| − | > mapM_ reverseUTF8File args |
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| − | > reverseUTF8File :: FilePath -> IO () |
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| − | > reverseUTF8File f = |
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| − | > do c <- readFile f |
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| − | > writeFile (f ++ ".rev") $ reverseLines c |
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| − | > where |
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| − | > reverseLines = unlines . map reverse . lines |
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| − | </haskell> |
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