
Mitar wrote:
Hi!
I am really missing the (general) split function built in standard Haskell. I do not understand why there is something so specific as words and lines but not a simple split? The same goes for join.
Yes, I can of course define them but ... in an interactive mode it would be quite handy to have them there.
Or am I wrong and are those hidden somewhere?
So what are common ways to get around this? What are elegant definitions? Inline definitions?
As I understand it, they don't exist because nobody can agree on the best way to define them. For joining you probably want some combination of intersperse and concat, e.g. unlines = concat . intersperse "\n" For splitting, do we split on a given character? A predicate? Do we keep the splitting character or throw it away? Do we generate empty sublists or elide them? Apparently nobody can agree on these points, and writing a function with all possible options would be very messy...