''' Purpose: expand input processing capabilities by splitting
         an input string into its component words
'''

# get input
# introduces the split() function!

reply = input( 'What are your three favorite words: ' ) # user input is stored as a string in reply

print()

# determine individual words w1, w2, and w3

# SPLIT FUNCTION
    # The split() function is a function for STRINGS. It will give you a list of words separated by spaces in that string.
    # Ex.
    # reply = 'I love CS'
    # reply.split() -> ['I', 'love', 'CS']
    # w1, w2, w3 = ['I', 'love', 'CS'] -> multiple variable assignment
    # w1 gets 'I', w2 gets 'love', w3 gets 'CS'

w1, w2, w3 = reply.split() # format is stringvariable.split()

# Same as like w1,w2,w3 = 'peace','joy','friends'

# reply is the variable that stores the user input
# reply.split() is the format that we will use to call .split() on that string!

# If reply was changed to a variable named text or something
# it would be text.split()

# SPLITTING BY SPACES vs. SPLITTING BY OTHER CHARACTERS / SUBSTRINGS
    # .split() by default will separate the words at the spaces (whitespace)
    # .split() takes in an optional argument
    # you can do reply.split('-') to split on a hyphen for example (examples in Modules > str > .split0

# If reply is 'peace joy friends'
# w1,w2,w3 = reply.split()
# w1,w2,w3 = ['peace','joy','friends']
# w1 is 'peace', w2 is 'joy', w3 is 'friends'
# Assigned sequentially!
# Everything on the left is assigned sequentially to the corresponding order on the right!
# x, y = 1, 2
# x is 1 and y is 2

# display results

print( w1 )
print( w2 )
print( w3 )