''' Purpose: examine a list of words
'''

# get text from user
reply = input( 'Enter text: ' )

print()

# split text into words
words = reply.split() # A list of words where reply was split at whitespace is stored in words
 
# let's see what we got
print( 'Supplied text =', reply )
print( 'words =', words )

print()

# analyze text

# For loop to process the list of words where we print each word and its length

# If reply was 'Welcome to CS'
# words is ['Welcome', 'to', 'CS']
# the loop variable w will take on each smaller element from the list of words
    # first it will be 'Welcome' then execute the statements for that value
    # second it will be 'to' then execute the statements for that value
    # third it will be 'CS' then execute the statements for that value
    # then we're done with the loop :)

# average = sum of numbers / number of numbers
# average length is sum of the word lengths / number of words
# What function will give us the size of a list? How do you find the size (length of a string)?
    #  len() function :)

# len( x ) function
    # Number of characters in a string x
    # Number of elements in a list x

number_of_words = len( words ) # len( list ) is the number of elements in the list

# ACCUMULATOR EXAMPLE 2: Number accumulation

sum_word_lengths = 0
for w in words :
    # get current word's length
    len_w = len( w )
    sum_word_lengths = len_w + sum_word_lengths # We modify the value of sum_word_lengths to say take the old value
                                                # and add another word's length to our sum so it adds up all the sums
    # echo current word and it's length
    print( w, ":", len_w )
    print(sum_word_lengths)

average = sum_word_lengths / number_of_words
print( average )

# ACCUMULATORS

# Number Accumulator Structure (different for addition/subtraction vs multiplication/division)
# number_accumulator = 0
# for ... in ...:
    # number_accumulator = number_accumulator +/- modification (value we wanna add / subtract)

# number_accumulator = 1
# for ... in ...:
    # number_accumulator = number_accumulator * or divide modification (value we wanna multiply/divide)

# String Accumulator
# string_accumulator = ''
# for ... in ...:
    # string_accumulator = string_accumulator + string we wanna modify it with (add to the string accumulator through
                                                                            # concatenation)
# List Accumulator
# list_accumulator = []
# for ... in ...:
    # list_accumulator.append( what we wanna add to the list_accumulator )