STRSTR Fasta

STRSTRFasta.psuedo

string = "foobarfoofoobarbar"
list_of_dupes = []

for(int i = string.length; i > 1; i--)
{
  slice_size = string.length / i;
  temp_string = string
  slice_to_check_for_uniqueness = temp_string.slice(FROM 0, TO slice_size); #I'm assuming slice consumes.
  while(temp_string.contains(slice_to_check_for_uniqueness) != null)
  {
    list_of_dupes.add(slice_to_check_for_uniqueness);
    temp_string.remove(slice_to_check_for_uniqueness);
  }
}