[Haskell-beginners] can this be made shorter?

Felipe Almeida Lessa felipe.lessa at gmail.com
Wed May 29 21:44:35 CEST 2013


Well, you could use:

    null . dropWhile (`elem` "./")

=)

On Wed, May 29, 2013 at 4:38 PM, Emmanuel Touzery <etouzery at gmail.com> wrote:
> hi,
>
>  i want to know if a string contains only "." and "/" characters.
>
>  i do something like that:
>
> null . dropWhile (\c -> c == '.' || c == '/')
>
>   now it's a shame, because if I wanted only to check for "." then I would
> have:
>
> null . dropWhile (=='.')
>
>    afaik in scala you can say:
>
> null . dropWhile (_ == '.' || _ == '/')
>
>    which is a bit more compact than the haskell...
>
>    I was thinking to use "and" but I'm not sure it would end up being
> readable...
>
>    Any idea? Or I am trying too hard to make it compact?
>
> Emmanuel
>
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-- 
Felipe.



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