Sebastian Sylvan wrote:
A sorry, I thought the delimiter was a line delimiter. I'm trying to get to
that fusion goodness by using built-in functions as much as possible...
How about this one:
clean del = B.map ( B.filter (/='\n') ) . B.groupBy (\x y -> (x,y) /=
(del,'\n'))
That groupBy will group it into groups which don't have the delimiter
followed by a newline in them (which is the sequence your rows end with),
then it filters out newlines in each row. You might want to filter out
spaces first (if there are any) so that you don't get a space between the
delimiter and newline at the end...
I think you still need unlines after that so is the time complexity
different to the
unlines . foldr (function including `last') . lines
in my first post? Or is it better for another reason, such as "fusion
goodness"?
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