[Haskell-cafe] gbp sign showing as unknown character by GHC

[Ketil Malde]

Stuart Cook <scook0 at gmail.com> writes:

>     GHCi, version 6.8.2: http://www.haskell.org/ghc/  :? for help
>     Loading package base ... linking ... done.
>     Prelude> map Data.Char.ord "饁"
>     [39233]    <== 0x9941
>     Prelude> putStrLn "饁"
>     A     <== 0x41

> It seems that GHCi is clever enough to decode UTF-8 input, which only
> serves to confuse System.IO even more.

I get:

    GHCi, version 6.8.2: http://www.haskell.org/ghc/  :? for help
    Loading package base ... linking ... done.
    Prelude> map Data.Char.ord "饁"
    [39233]

and

    Prelude> map Data.Char.ord "£"
    [163]

but also:

    % ghci -e 'map Data.Char.ord "饁"'
    <interactive>:1:21:
        lexical error in string/character literal at character '\129'

but again:

    % ghci -e 'map Data.Char.ord "£"' 
    [194,163]

So GHCi used interactively translates input from the terminal's UTF-8,
but outputs truncates output to eight bits.  Executing a string with
-e, it appears to read byte for byte (which I think was the original
behavior at some point). 

-k
-- 
If I haven't seen further, it is by standing in the footprints of giants