Hey Guys & Gals,

I am trying to figure out how one would go about printing all
possible variations of letter cases in a given word.

So if for instance given the input "test123"
output would be ;

test123
Test123
TEst123
TESt123
TEST123
tEst123
tESt123
tEST123
teSt123
teST123
tesT123

etc. etc. until all case variations of 'test' have been printed.

Perhaps this pseudocode might be a good approach:

convert string to lowercase
while there is a lowercase character in string
do
  for every character in the string 
  do
    if current character is in [[:alpha:]]
      if current character is upper then 
        convert to lower 
      else
        convert to upper
        break
      fi
    fi
  done
done