def test_read_test_file():
list_strings = read_text_file('small.txt')
#checks if the 2nd element of the list is valid
assert list_strings[2] == 'another word.', "Should be True but is " + str(list_strings[0])
# checks if the 1st element of the list is valid
assert list_strings[0]== 'Yossarian decided', "Should be True but is " + str(list_strings[-1])
def read_filename(self, name):
self.text_lines = read_text_file(name)
print(self.text_lines.the_array)
print(self.text_lines.size)
def prompt_user(self):
"""
Function calls print_menu.
Function asks user for selected inputs inputs.
Function quits when thr user types "quit"
@:param self: the object
@Pre Condition: User has to type a command, Exception raised if incorrect command typed by user
@Post Condition: Calls the appropriate function, and updates the list
@complexity: Best case O(1), Worst case O(n)
"""
end = False
while not end: # while end = False the outermost loop runs
try:
printMenu = False
if printMenu == False:
self.print_menu() # Call print menu
# Prompt user to type command
user_input = input("Enter Command: (eg: read small.txt ) : \n"
).lower().split(" ")
if len(user_input) == 2 and user_input[
0] == "read": # if length of user_input == 2 and first
self.text_lines = read_text_file(
user_input[1]
) # element is "read" call read_text_files()
# method and store output in self.text_lines
# if length of user_input <= 2 and first element is "print" then:
elif len(user_input) <= 2 and user_input[0] == "print":
if len(user_input) == 1: # if length of user_input == 1
rest_string = ""
self.print_num(rest_string) # initiate print all lines
else:
self.print_num(
(user_input[1])
) # else print item at line num = second user input element
# if length of user_input <= 2 and first element is "delete" then:
elif len(user_input) <= 2 and user_input[0] == "delete":
if len(user_input) == 1: # if length of user_input == 1
rest_string = ""
self.delete_num(
rest_string) # initiate delete all lines
else:
self.delete_num(
user_input[1]
) # Else delete item at line num = second element of user input
# if length of user_input == 2 and first element is "insert" then:
elif len(user_input) == 2 and user_input[0] == "insert":
try:
# running is_number() on second element of user input to check if its a number
if self.is_number(user_input[1]) == True:
number = int(
user_input[1]
) # storing line number as type integer
if number == 0: # if line number = 0
raise IndexError(
'Invalid line number'
) # index error raised if line number = 0
else:
# Creating new ListADT instance to store the content user wants to add
list_strings = ListADT()
end_insert = False # setting end_insert condition to false
print("Enter text: ")
# while end inster = False run while loop to prompt user to type lines to enter
while not end_insert:
prompt_user = input(" - ").strip()
# if full stop typed by user, set end_insert to true and stop prompting user to type lines
if prompt_user == ".":
end_insert = True
else:
list_strings.append(prompt_user)
self.insert_num_strings(
user_input[1], list_strings
) # List_strings inserted to self
else:
raise IndexError(
'Enter valid Line number'
) # IndexError raised if index is not a number.
except Exception as e: # All Exceptions in Try block are caught and printed.
print("??")
print(e)
elif len(user_input) == 2 and user_input[0] == "search":
print(self.search_string(user_input[1]))
elif len(user_input) == 1 and (user_input[0] == "quit"):
# Sets 'end' to true when user types Quit, which stops the outermost while loop from running
end = True
else:
print("You must enter one of the listed commands")
print("Try again ")
self.prompt_user(
) # If invalid input is entered, allows user to try again.
except Exception as e: # All Exceptions in outer most Try block are caught and printed.
end = True
print(e)
print("??")
self.prompt_user()
def test_Task5_search():
x = Editor()
x.text_lines = read_text_file('small.txt')
x.search_string('not')