On Tue, 16 Oct 2001, Ashley Yakeley wrote:
At 2001-10-16 11:12, Michael Marte wrote:
But I need String -> String! (Reading from a file, decompressing, and feeding it to the XML parser.) How can I do this?
The "reading from a file" part is arguably a misdesign in the standard libraries. There ought to be Word8-based file IO functions for reading/writing the bytes of a file. I'm not sure, but I think the Char-based functions may even do newline conversion.
readFile :: FilePath -> IO String works fine for me, also when reading binary files. But yes, maybe there should be a function returning IO Word8. Obviously, the implementation of readFile automatically converts from Word8 to Char and it is not only a type cast because Char has 16 bits.
I found out that fromIntegral does the conversion from Word8 to Char but I do not know how to convert from Char to Word8.
I think fromIntegral will work for that too.
No, there is no suitable instance. However, it works like this: map (toEnum . fromEnum) . Bzip2.decompress . map (toEnum . fromEnum) Michael