def main():
''' Main entry point'''
# Configure logger
logging.basicConfig(
format='%(asctime)s %(levelname)8s %(filename)s:%(lineno)-5d [%(name)s] %(message)s'
, datefmt='%m/%d/%Y %H:%M:%S'
, level=logging.DEBUG
)
logger = logging.getLogger('syntax-builder')
#logger.setLevel(logging.DEBUG)
# Check params
logging.info('sys.argv=%s', repr(sys.argv))
if len(sys.argv) < 2:
logger.error('Not enough parameters')
sys.exit(1)
# Open an input BNF file
parser = Parser(logger)
try:
with open(sys.argv[1], encoding='utf-8') as f:
for line in f:
parser.feed(line)
except IOError as e:
logger.exception('Unable to open file: %s', e)
except ParseError as e:
logger.exception('Paser error[%s]: %s', sys.argv[1], e)
parser.checkDefinitions()
print('*********************************')
parser.showDefinitions()
def setUp(self):
self.parser = Parser(logger)
class ParserTests(unittest.TestCase):
def setUp(self):
self.parser = Parser(logger)
def test_parseEmptyToken1(self):
with self.assertRaises(ParseError):
self.parser.parseToken('')
def test_parseEmptyToken2(self):
with self.assertRaises(ParseError):
self.parser.parseToken('+')
def test_parseEmptyToken3(self):
with self.assertRaises(ParseError):
self.parser.parseToken('*')
def test_parseEmptyToken4(self):
with self.assertRaises(ParseError):
self.parser.parseToken('?')
def test_parseEmptyToken5(self):
with self.assertRaises(ParseError):
self.parser.parseToken('\'\'?')
def test_parseToken1(self):
node = self.parser.parseToken('token')
self.assertEqual(node.name, 'token')
