Re: split does not seem to work properly

[jyapayne]

I honestly don't see an issue with your solution that uses a filter. That's how 
it would be done in any other language. If you don't want the extra proc 
definition, you can use the `=>` sugar like you did with map:
    
    
    import os, strutils, sequtils, sugar
    
    proc main() =
      if paramCount() < 1:
        quit("Usage: x-sexpr.x 1000")
      let
        s = readFile(paramStr(1)).split(Whitespace+{','})
        xs= s.filter(x => x.len > 0).map(x => parseFloat x)
      echo "Average= ", xs.foldl(a + b)/float(xs.len)
    
    main()
    
    
    Run