Daniel Carrera wrote:
Hi all,
How do I write a statement that spans multiple lines?
I have this function:
pythagoras n = [(a,b,c) | a <-[1..n], b <-[1..n], c <-[1..n], a <= b, b < c, a*a + b*b == c*c]
This should all be in one line. I know some ways to make the line shorter, like defining local functions and using 'filter'. But the code would be clearer if I could just make this one statement span several lines.
Haskell's layout rules mean that you have to keep intenting at the beginning of a line to continue a definition. Try something like... pythagoras n = [(a,b,c) | a <- [1..n], b <- [1..n], c <- [1..n], a <= b, b < c, a*a + b*b == c*c ] ...or... pythagoras n = [(a,b,c) | a <- [1..n], b <- [1..n], c <- [1..n], a <= b, b < c, a*a + b*b == c*c ] ...See also... http://www.haskell.org/onlinereport/lexemes.html#lexemes-layout Greg Buchholz