Frequency_Reverse - Ormendel/Programming_Systems_HW4 GitHub Wiki
frequency's reverse function - reads a text file from the user and returns the words in the file in reverse lexicographical order and how many times a word occurs. For example for "a,!bcds,b,a" the function will return output:
bcds 1
b 1
a 1
The function ignores from each character that is not between A-Z or a-z