def main(cmdline=None):
args = parser.parse_args(cmdline or sys.argv[1:])
data = args.input.read()
pparser = peggy.Peggy(args.grammar, debug=args.debug)
ast = pparser.parse(data, args.rule)
if args.debug:
pprint.pprint(ast)
if ast['error'] is False:
print('Took {} iteration'.format(pparser._count))
if len(data) != ast['nodes'][0]['length']:
print(len(data), '!=', ast['nodes'][0]['length'])
peggy.astprint(ast['nodes'][0], data)
else:
pprint.pprint(ast)
pprint.pprint(pparser._error)
def test_simple_ko(self, ):
parser = peggy.Peggy(grammar)
ast = parser.parse('b+b', 'Expr')
self.assertTrue(ast['error'])
self.assertEqual(ast['length'], 0)
def test_simple_partial(self, ):
parser = peggy.Peggy(grammar)
ast = parser.parse('1+b', 'Expr')
self.assertFalse(ast['error'])
self.assertEqual(ast['length'], 1)
def test_simple_ok(self):
parser = peggy.Peggy(grammar)
ast = parser.parse('1+1', 'Expr')
self.assertFalse(ast['error'])
self.assertEqual(ast['length'], 3)
def test_simple_ko_6(self, ):
parser = peggy.Peggy(grammar)
ast = parser.parse('abcc', 'S')
self.assertTrue(ast['error'])
self.assertEqual(ast['length'], 0)
def test_simple_ok_3(self):
parser = peggy.Peggy(grammar)
ast = parser.parse('aaabbbccc', 'S')
self.assertFalse(ast['error'])
self.assertEqual(ast['length'], 9)
def convert(grammar, data, ast): parser = peggy.Peggy(all[grammar]['convert'](ast['nodes'][0], data)) parser.compute_lookahead() return parser
def parse(grammar, data, debug = False): parser = peggy.Peggy(all[grammar]['tree'], debug = debug) ast = parser.parse(data, all[grammar]['rule']) return ast