def concat(xss):
"""
>>> concat([[]])
[]
>>> concat((()))
[]
>>> concat([[1,2,3],[4,5]])
[1, 2, 3, 4, 5]
>>> concat([[1,2,3],[4,5,[6,7]]])
[1, 2, 3, 4, 5, [6, 7]]
>>> concat(((1,2,3),(4,5,[6,7])))
[1, 2, 3, 4, 5, [6, 7]]
>>> concat(((1,2,3),(4,5,[6,7])))
[1, 2, 3, 4, 5, [6, 7]]
>>> concat((i, i*2) for i in range(3))
[0, 0, 1, 2, 2, 4]
"""
return foldl(listplus, (xs for xs in xss), [])
def shuffle2():
room = Room(request.environ.get('beaker.session'))
mask, c0, c1, c1_k = [room.get(x) for x in ['mask', 'c0', 'c1', 'c1_k']]
d = json.loads(request.forms.get('q'))
def f(i):
r, pi = map(lambda x : jsonToInteger(x), d[i][0]), d[i][1]
if all(toInt(x) % 2 != 0 for x in r):
return procedure_33(c1, c1_k[i], r, pi) if mask[i] else procedure_33(c0, c1_k[i], r, pi)
else:
return False
if not all( f(i) for i in range(numbers['s']) ):
fail()
return 'fail to verify c1'
room.state('shuffle3');
ci, ri, pii = procedure_32(c1, room.group)
room.set('ci', ci)
room.set('ri', ri)
room.set('pii', pii)
c_ik = [ procedure_32(ci, room.group) for _ in range(numbers['s']) ]
room.set('c_ik', c_ik)
room.save()
response.content_type = 'application/json'
return json.dumps(map(toStr, {
'c_i' : ci,
'c_ik' : foldl(lambda x, y: x + [y[0]], c_ik, [])
}))
def _flatten(xss):
"""
>>> _flatten([])
[]
>>> _flatten([[1,2,3],[4,5]])
[1, 2, 3, 4, 5]
>>> _flatten([[1,2,[3]],[4,[5,6]]])
[1, 2, 3, 4, 5, 6]
tuple:
>>> _flatten([(1,2,3),(4,5)])
[1, 2, 3, 4, 5]
generator expression:
>>> _flatten((i, i * 2) for i in range(0,5))
[0, 0, 1, 2, 2, 4, 3, 6, 4, 8]
"""
if is_foldable(xss):
return foldl(operator.add, (_flatten(xs) for xs in xss), [])
else:
return [xss]
def _flatten(xss):
"""
>>> _flatten([])
[]
>>> _flatten([[1,2,3],[4,5]])
[1, 2, 3, 4, 5]
>>> _flatten([[1,2,[3]],[4,[5,6]]])
[1, 2, 3, 4, 5, 6]
tuple:
>>> _flatten([(1,2,3),(4,5)])
[1, 2, 3, 4, 5]
generator expression:
>>> _flatten((i, i * 2) for i in range(0,5))
[0, 0, 1, 2, 2, 4, 3, 6, 4, 8]
"""
if is_foldable(xss):
return foldl(operator.add, (_flatten(xs) for xs in xss), [])
else:
return [xss]
def find_vars(filepath, paths):
return jinja2_cli.utils.uniq(foldl(listplus,
(vs[1] for vs in find_vars_0(filepath,
paths)),
[]))
def rfoldr(func, seq, start=_sentinel):
if start is _sentinel:
return foldl(func, reversed(seq))
return foldl(func, reversed(seq), start)
def rfoldl(func, seq, start=_sentinel):
if start is _sentinel:
return foldl(flip(func), seq)
return foldl(flip(func), seq, start)
def compose(*functions):
"""Compose an iterable of one-argument functions."""
def compose2(f, g):
return lambda x: f(g(x))
return foldl(compose2, functions, lambda x: x) # op(acc, elt)
def reverse(ll):
"""Reverse a linked list."""
return foldl(snoc, ll, nil)
def foldr(function, sequence, initial=None):
"""Right fold."""
return foldl(function, reversed(sequence), initial)
