[Haskell-beginners] Functions in "where" block.

[Mateusz Kowalczyk]

On 06/12/2014 04:21 AM, Kim-Ee Yeoh wrote:
> On Thu, Jun 12, 2014 at 8:54 AM, Venu Chakravorty <c.venu at aol.com> wrote:
> 
>> fun.hs:4:15: parse error on input `='
>>
> 
> The problem wasn't obvious until I copy-pasted it into an editor:
> 
> You have tabs instead of spaces for the line defining ep.
> 
> The rule of thumb is that your editor must expand all tabs into matching
> spaces for whitespace-sensitive languages like haskell. Or else you'll
> waste time with this kind of parsing errors.
> 
> -- Kim-Ee
> 
> 
> 
> _______________________________________________
> Beginners mailing list
> Beginners at haskell.org
> http://www.haskell.org/mailman/listinfo/beginners
> 

For reference, GHC treats hard tabs as 8 spaces.

Even in my mail client the problem is quite apparent[1].

Set your editor to use spaces only. I think [2] is the standard
reference for whitespace style.

[1]: http://fuuzetsu.co.uk/images/1402875503.png
[2]: http://urchin.earth.li/~ian/style/haskell.html
-- 
Mateusz K.