def _to_lines_by_slice(self, conds, no_config=False):
# [10:20]
# ^^^^^
# body
body = conds[1:-1]
start, end = body.split(':', 1)
def conv(s):
if s=='':
return None
return int(s)
start = conv(start)
end = conv(end)
return util.slice_friendly(self.to_lines(no_config=no_config), start, end)
def test_slice_friendly(self):
a = [1,2,3,4,5]
self.assertEqual(a, util.slice_friendly(a, 1, 5))
self.assertEqual([1,2,3], util.slice_friendly(a, 1, 3))
self.assertEqual([2,3], util.slice_friendly(a, 2, 3))
self.assertEqual([3], util.slice_friendly(a, 3, 3))
self.assertEqual([4,5], util.slice_friendly(a, 4, 5))
self.assertEqual(a, util.slice_friendly(a, 1, None))
self.assertEqual([5], util.slice_friendly(a, 5, None))
self.assertEqual([3,4,5], util.slice_friendly(a, 3, None))
self.assertEqual([1], util.slice_friendly(a, None, 1))
self.assertEqual([1,2,3], util.slice_friendly(a, None, 3))
self.assertEqual(a, util.slice_friendly(a, None, 5))
self.assertEqual(a, util.slice_friendly(a, None, None))