[Haskell-beginners] can this be made shorter?

[Emmanuel Touzery]

Thank you, that's exactly what I was looking for!
I didn't spot "elem" so far... that's why I was looking into "and" which
was too complex for this case.

Thanks again!

emmanuel


On Wed, May 29, 2013 at 9:44 PM, Felipe Almeida Lessa <
felipe.lessa at gmail.com> wrote:

> 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
> >
> > _______________________________________________
> > Beginners mailing list
> > Beginners at haskell.org
> > http://www.haskell.org/mailman/listinfo/beginners
> >
>
>
>
> --
> Felipe.
>
> _______________________________________________
> Beginners mailing list
> Beginners at haskell.org
> http://www.haskell.org/mailman/listinfo/beginners
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/beginners/attachments/20130529/afae668d/attachment-0001.htm>