class Foo(Buffer):
f_int = int_field(where=bytes_ref[0:4])
f_str = str_field(where=bytes_ref[4:])
def __init__(self, f_int, f_str):
self.f_int = f_int
self.f_str = f_str
class Foo(Buffer):
a = be_int_field(where=bytes_ref[0:1])
s = str_field(where=bytes_ref[1:1 +
num_ref(self_ref.calc_s_size(a))])
def calc_s_size(self, a):
return a * 2
class Foo(Buffer):
f_str_len = int_field(where=bytes_ref[0:4],
set_before_pack=lambda self: len(self.f_str))
f_str = str_field(where=bytes_ref[4:4 + f_str_len])
def __init__(self, f_str):
self.f_str_len = 0
self.f_str = f_str
class Foo(Buffer):
f_int = int_field(where=bytes_ref[0:4],
set_before_pack=len_ref(self_ref.f_str) * 2)
f_str = str_field(where=bytes_ref[4:4 + f_int // 2])
class Foo(Buffer):
f_int = int_field(where=bytes_ref[0:4],
set_before_pack=total_size - 4)
f_str = str_field(where_when_pack=bytes_ref[4:],
where_when_unpack=bytes_ref[4:4 + f_int])
class Foo(Buffer):
s = str_field(where=bytes_ref[2:2 + num_ref(self_ref.a)])
a = be_int_field(where=bytes_ref[0:2], set_before_pack=len_ref(s))
class Foo(Buffer):
a = be_int_field(where=bytes_ref[0:2])
b = str_field(where=bytes_ref[2:2 + num_ref(self_ref.a)])
class Foo(Buffer):
a = str_field(where=bytes_ref[0:2], set_before_pack=' ')
b = str_field(where=bytes_ref[2:2 + a])
class Foo(Buffer):
l = be_int_field(where=bytes_ref[0:2],
set_before_pack=len_ref(self_ref.s))
s = str_field(where=bytes_ref[2:2 + l])
class Foo(Buffer):
l = be_int_field(where=bytes_ref[0:2])
s = str_field(where_when_pack=bytes_ref[2:],
where_when_unpack=bytes_ref[2:l + 4])
class Foo(Buffer):
f_a = str_field(where=bytes_ref[0:8],
justify='left',
padding=b' ',
strip=b'\x00')
class Foo(Buffer):
f_a = str_field(where=bytes_ref[0:8],
justify='right',
padding=b' ')
class Foo(Buffer):
f_int = int_field(where=bytes_ref[0:4],
set_before_pack=total_size)
f_str = str_field(where=bytes_ref[4:f_int])