def testLangAcceptor_2Lines(self):
Tape = ''
try:
LA = machine.LanguageAcceptor(os.path.join(os.path.dirname(__file__), 'TestFiles/two_lines.txt'))
self.assertTrue(False)
except:
self.assertTrue(True)
def testLangAcceptor_goofedTrans(self):
Tape = 'aabbcc'
try:
LA = machine.LanguageAcceptor(os.path.join(os.path.dirname(__file__), 'TestFiles/goofedTrans.txt'))
self.assertTrue(False)
except:
self.assertTrue(True)
def testLangAcceptor_a_and_b(self):
Tape1 = 'ababab'
Tape2 = 'aaaaa'
Tape3 = 'bbbbb'
Tape4 = 'bbaabb'
Tape5 = 'aacdbb'
Tape6 = ''
LA1 = machine.LanguageAcceptor(os.path.join(os.path.dirname(__file__), 'TestFiles/a_and_b.txt'))
LA2 = machine.LanguageAcceptor(os.path.join(os.path.dirname(__file__), 'TestFiles/a_and_b.txt'))
LA3 = machine.LanguageAcceptor(os.path.join(os.path.dirname(__file__), 'TestFiles/a_and_b.txt'))
LA4 = machine.LanguageAcceptor(os.path.join(os.path.dirname(__file__), 'TestFiles/a_and_b.txt'))
LA5 = machine.LanguageAcceptor(os.path.join(os.path.dirname(__file__), 'TestFiles/a_and_b.txt'))
LA6 = machine.LanguageAcceptor(os.path.join(os.path.dirname(__file__), 'TestFiles/a_and_b.txt'))
self.assertTrue(LA1.run(Tape1,False))
self.assertTrue(LA2.run(Tape2,False))
self.assertTrue(LA3.run(Tape3,False))
self.assertTrue(LA4.run(Tape4,False))
self.assertFalse(LA5.run(Tape5,False))
self.assertTrue(LA6.run(Tape6,False))
def langAcceptorMenu(self) -> int:
print('')
print('-------------------- Language Acceptors ----------------------')
print('1. L = {(a^n)(b^n)(c^n), n > 0}')
print('2. L = {w w^R, |w w^R| is even, \u03A3 = (a,b)}')
print('3. Import custom language acceptor from file')
print('4. Back to Main Menu')
print('')
UserIn = input('Selection: ')
try:
int(UserIn)
except:
print('Invalid selection.')
return 1
if (int(UserIn) < 1) or (int(UserIn) > 4):
print('Invalid selection.')
return 1
elif int(UserIn) == 1:
LA = machine.LanguageAcceptor(
os.path.join(os.path.dirname(__file__),
'machDescriptions/anbncn.txt'))
Tape = input('Enter the comparing string: ')
InLang = LA.run(Tape, VIEW_PROCESS)
if InLang:
print(Tape, 'is in the language!')
else:
print(Tape, 'is not in the language!')
del LA
return 1
elif int(UserIn) == 2:
LA = machine.LanguageAcceptor(
os.path.join(os.path.dirname(__file__),
'machDescriptions/wwR.txt'))
Tape = input('Enter the comparing string: ')
InLang = LA.run(Tape, VIEW_PROCESS)
if InLang:
print(Tape, 'is in the language!')
else:
print(Tape, 'is not in the language!')
del LA
return 1
elif int(UserIn) == 3:
self.__describeUserFile()
FileLoc = input(
'Enter the name of the file, including it\'s relative path from \nthis working directory: '
)
try:
LA = machine.LanguageAcceptor(
os.path.join(os.path.dirname(__file__), FileLoc))
Tape = input('\nEnter the comparing string: ')
InLang = LA.run(Tape, VIEW_PROCESS)
if InLang:
print(Tape, 'is in the language!')
else:
print(Tape, 'is not in the language!')
del LA
except:
print(
'\nCould not locate file! Please check path and/or file name and try again.'
)
return 1
else:
return 0