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Finished backporting PEP 3127, Integer Literal Support and Syntax.

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Added 0b and 0o literals to tokenizer.
Modified PyOS_strtoul to support 0b and 0o inputs.
Modified PyLong_FromString to support guessing 0b and 0o inputs.
Renamed test_hexoct.py to test_int_literal.py and added binary tests.
Added upper and lower case 0b, 0O, and 0X tests to test_int_literal.py
This commit is contained in:
Eric Smith 2008-03-17 17:32:20 +00:00
parent 7cfbf0c421
commit 9ff19b5434
7 changed files with 336 additions and 125 deletions
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45
Lib/test/test_builtin.py
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@ -853,6 +853,12 @@ class BuiltinTest(unittest.TestCase):
self.assertRaises(ValueError, int, "0x", 16)
self.assertRaises(ValueError, int, "0x", 0)
self.assertRaises(ValueError, int, "0o", 8)
self.assertRaises(ValueError, int, "0o", 0)
self.assertRaises(ValueError, int, "0b", 2)
self.assertRaises(ValueError, int, "0b", 0)
# SF bug 1334662: int(string, base) wrong answers
# Various representations of 2**32 evaluated to 0
@ -894,6 +900,45 @@ class BuiltinTest(unittest.TestCase):
self.assertEqual(int('2br45qb', 35), 4294967296L)
self.assertEqual(int('1z141z4', 36), 4294967296L)
# tests with base 0
# this fails on 3.0, but in 2.x the old octal syntax is allowed
self.assertEqual(int(' 0123 ', 0), 83)
self.assertEqual(int(' 0123 ', 0), 83)
self.assertEqual(int('000', 0), 0)
self.assertEqual(int('0o123', 0), 83)
self.assertEqual(int('0x123', 0), 291)
self.assertEqual(int('0b100', 0), 4)
self.assertEqual(int(' 0O123 ', 0), 83)
self.assertEqual(int(' 0X123 ', 0), 291)
self.assertEqual(int(' 0B100 ', 0), 4)
# without base still base 10
self.assertEqual(int('0123'), 123)
self.assertEqual(int('0123', 10), 123)
# tests with prefix and base != 0
self.assertEqual(int('0x123', 16), 291)
self.assertEqual(int('0o123', 8), 83)
self.assertEqual(int('0b100', 2), 4)
self.assertEqual(int('0X123', 16), 291)
self.assertEqual(int('0O123', 8), 83)
self.assertEqual(int('0B100', 2), 4)
# the code has special checks for the first character after the
# type prefix
self.assertRaises(ValueError, int, '0b2', 2)
self.assertRaises(ValueError, int, '0b02', 2)
self.assertRaises(ValueError, int, '0B2', 2)
self.assertRaises(ValueError, int, '0B02', 2)
self.assertRaises(ValueError, int, '0o8', 8)
self.assertRaises(ValueError, int, '0o08', 8)
self.assertRaises(ValueError, int, '0O8', 8)
self.assertRaises(ValueError, int, '0O08', 8)
self.assertRaises(ValueError, int, '0xg', 16)
self.assertRaises(ValueError, int, '0x0g', 16)
self.assertRaises(ValueError, int, '0Xg', 16)
self.assertRaises(ValueError, int, '0X0g', 16)
# SF bug 1334662: int(string, base) wrong answers
# Checks for proper evaluation of 2**32 + 1
self.assertEqual(int('100000000000000000000000000000001', 2), 4294967297L)