/// Split a list into chunks using the specified separator
/// This takes a list and returns a list of lists (chunks)
/// that represent individual groups, separated by the given
/// separator 'v'
let splitBy v list =
  let yieldRevNonEmpty list = 
    if list = [] then []
    else [List.rev list]

  let rec loop groupSoFar list = seq { 
    match list with
    | [] -> yield! yieldRevNonEmpty groupSoFar
    | head::tail when head = v ->
        yield! yieldRevNonEmpty groupSoFar
        yield! loop [] tail
    | head::tail ->
        yield! loop (head::groupSoFar) tail }
  loop [] list |> List.ofSeq

// The following uses 0 as a separator
let nums = [0;1;2;0;1;3;0;4;5;0]
splitBy 0 nums