Re: [Haskell-cafe] String to Double conversion in Haskell

I am curious to understand the logic, the "Haskell Think", here. Why is it that the byteString only supports conversion to int. daryoush On Sun, Aug 24, 2008 at 2:23 PM, Don Stewart <dons@galois.com> wrote:

dmehrtash:

...

I am trying to convert a string to a float. It seems that Data.ByteString library only supports readInt. After some googling I came accross a possibloe implementation: [1]http://sequence.svcs.cs.pdx.edu/node/373

Use the bytstring-lexing library,

http://hackage.haskell.org/cgi-bin/hackage-scripts/package/bytestring-lexing

Which provides a copying and non-copying lexer for doubles,

readDouble :: ByteString -> Maybe (Double, ByteString) unsafeReadDouble :: ByteString -> Maybe (Double, ByteString)

-- Don