I need to define two functions for an ml program that I am currently
working on.
The first function needs to split a string into a string list. Words
are seperated by either white space, tabs, or newlines.  I also am
looking to use the difference list method.  An example is that the
function would recieve "this, \t\tis a ml\n program" and return
["this", "is", "a", "ml", "program"]
The next function would take a string and need to sort it and then
return it as a string list of the words.