Btukfyl

# -*- coding: utf-8 -*-

import io





def main():

    global get_user_input

    global stringInput

    global width

    stringInput = ''

    width = ''

    get_user_input = input("Please enter a string to Justify and the width to justify at using a | to separate the string and width: " )



def left_justify(stringInput, width) :

    #single line only

    return ' '.join(stringInput).ljust(width)



def justify(stringInput, width) :

    output = io.StringIO()

    justifyInput = stringInput.split(' ')

    line =              # List of words in current line.

    col = 0               # Starting column of next word added to line.



    for word in justifyInput:

        if line and col + len(word) > width:

            if len(line) == 1:

                output.write(left_justify(line, width))

            else:

                # After n + 1 spaces are placed between each pair of words, 

                #there are spaces left over; these result in wider spaces at the left.

                n, r = divmod(width - col + 1, len(line) - 1)

                narrow = ' ' * (n + 1)

                if r == 0:

                    output.write(narrow.join(line))

                else:

                    wide = ' ' * (n + 2)

                    output.write(wide.join(line[:r] + [narrow.join(line[r:])]))

            line, col = , 0

        line.append(word)

        col += len(word) + 1

    if line:

        output.write(left_justify(line, width))

    return output.getvalue()



def print_the_output():

    print(justify(stringInput, width))



main()



if "|" not in get_user_input :

    print("please ensure you used a | to separate the string from the jusfitication width")

elif get_user_input.find('|') != -1:    

    try:

        stringInput = get_user_input.split('|')[0].strip('|').lstrip(' ')

        val = str(stringInput)

        print("nthe following string will be processed for justification: %s" %stringInput.strip('|'))

    except ValueError:

        print("please ensure the string to justify is text")

    try:

        width = int(get_user_input.split('|')[1].strip('|'))

        val = int(width)

        print("nThe justification will occur at a width of: %s" %width)

    except ValueError:

        print("nplease ensure your justification width is an integer")

    else:

        print(' ')

        print_the_output()

I am a little bit stuck here:

1. when there is only 1 line for the string I am not sure if it is using the entire width specified; thus making the string justified across the entire width.


2. to verify that #1 is happening I need to find a way to show the position for each character in the string and thus proving it used the entire width amount. (so if there are 10 characters it would so 01234567890 counting everything, spaces included)


3. from #2 I would want to figure out a way to record the incoming string character at index say 8 and store it and check if that character matches the output and check the total length matches width.

In my head those would be the unit tests: do the characters match and does the output length match the requested width.