On 29/01/2010 03:51, zaxis wrote:

import Text.Regex

date_by_ntday dateStr ntday = do
     let [y,m,d] = map (\x ->  read x::Int) $ splitRegex (mkRegex "-") dateStr
     ....

%ghc --version
The Glorious Glasgow Haskell Compilation System, version 6.12.1

Which package(s) do i need to use Text.Regex ?

Sincerely!

It looks like you want regex-compat:

http://hackage.haskell.org/packages/archive/regex-compat/0.92/doc/html/Text-Regex.html

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