On Sun, Aug 30, 2009 at 11:09 PM, Nigel Rantor
I am trying to get my head around Haskell but seem to keep butting against problems that have nothing to do with FP yet, but are simply to do with not understanding the tools.
I've been trying a lot of code from multiple tutorials but I keep finding that the code simply does not work out of the box, and requires some other setup I am unaware of.
I am currently on Debian, using GHC 6.8.2 installed using apt, so I assume that the toolchain is installed and working correctly.
For example, the most recent tutorial I've been looking at is the "yet another haskell tutorial", here - http://www.cs.utah.edu/~hal/docs/daume02yaht.pdf
One of the exercises after talking about functions that act on lists is to determine the number of lowercase letters in a string.
Fine, that makes complete sense to me. I figure something along the lines of:
length( filter( Char.isLower "LoweR" ) )
try this instead length (filter Char.isLower "LoweR") `filter` takes two arguments. /M -- Magnus Therning (OpenPGP: 0xAB4DFBA4) magnus＠therning．org Jabber: magnus＠therning．org http://therning.org/magnus identi.ca|twitter: magthe