#Exercise 1



def GetAnswerWithUnderscores(answer,letters_guessed):
    new_string=''
    for ans in answer:
        if ans in letters_guessed:
           new_string+=ans
        elif ans not in letters_guessed:
            new_string+='_'
    return new_string

answer = GetAnswerWithUnderscores('welcome', 'mel')
print('GetAnswerWithUnderscores #1: expected _el__me, got', answer)
answer = GetAnswerWithUnderscores('quick', 'rstlne')
print('GetAnswerWithUnderscores #2: expected _____, got', answer)

#Exercise 2

def GetWordSeparatedBySpaces(word):
    new_string=''
    for char in word:
        new_string+=char+' '
    return new_string[0:len(new_string)-1] 
answer = GetWordSeparatedBySpaces('plane')
print('GetWordSeparatedBySpaces #1: expected p l a n e, got', answer)
answer = GetWordSeparatedBySpaces('to')
#Don't worry about the hasattr function, the if statement, or what they
#do: it's not required for this Hangman assignment.
if hasattr(answer, 'strip') and answer.strip() == answer:
    text = 'PASS'
else:
    text = 'FAIL'
print('GetWordSeparatedBySpaces #2: expected no spaces at the beginning or end,', text)


#Exercise 3


def IsWinner(answer,letters_guessed):
    new_word=''
    for each_letter in answer:
       if each_letter in letters_guessed:
           new_word+=each_letter
       else:
            return False
    if new_word==answer:
        return True
    else:
        return False
   
answer = IsWinner('plane', 'ranedlp')
print('IsWinner #1: expected True, got', answer)
answer = IsWinner('plane', 'plan')
print('IsWinner #2: expected False, got', answer)


#Exercise 4:


def IsLegalGuess(current_guess,letters_guessed):
        if len(current_guess)!=1:
            print('The letters guessed must not be more than one character long')
            return False
        elif current_guess.isalpha()==False:
            print('Your guess must include only alphabet not numbers and symbols')
            return False
        elif current_guess in letters_guessed:
            print('You cannot repeat the character that you have previously guessed')
            return False
        else:
            return True



answer = IsLegalGuess('g', '')
print('IsLegalGuess #1: expected True, got', answer)
answer = IsLegalGuess('g', 'rstle')
print('IsLegalGuess #1: expected True, got', answer)
answer = IsLegalGuess('bb', 'cat')
print('IsLegalGuess #1: expected False, got', answer)
answer = IsLegalGuess('p', 'yzpr')
print('IsLegalGuess #1: expected False, got', answer)




#Exercise 5


def GetLegalGuess(letters_guessed):#abc
    new_guess=input('guess a letter')
    while IsLegalGuess(new_guess,letters_guessed)==False:
        new_guess=input('guess a letter')
    return new_guess
       

answer=GetLegalGuess('abc')

print('Your guess is',answer,'and it is legal')


#Exercise 6

def IsGuessRevealing(answer, legal_letter_guess):
    if legal_letter_guess in answer:
        return True
    else:
        return False

answer = IsGuessRevealing('welcome', 'c')
print('IsGuessRevealing #1: expected True, got', answer)
answer = IsGuessRevealing('quick', 'z')
print('IsGuessRevealing #1: expected False, got', answer)