def binf_signature_present(self):
if hasattr(self, '_m_binf_signature_present'):
return self._m_binf_signature_present if hasattr(
self, '_m_binf_signature_present') else None
self._m_binf_signature_present = (
(KaitaiStream.byte_array_index(self.optional_binf_signature, 0)
== 98) and (KaitaiStream.byte_array_index(
self.optional_binf_signature, 1) == 105)
and (KaitaiStream.byte_array_index(self.optional_binf_signature, 2)
== 110) and (KaitaiStream.byte_array_index(
self.optional_binf_signature, 3) == 102))
return self._m_binf_signature_present if hasattr(
self, '_m_binf_signature_present') else None
def is_unregistered_tag(self):
"""Check if chunk_id contains lowercase characters ([a-z], ASCII 97 = a, ASCII 122 = z).
"""
if hasattr(self, '_m_is_unregistered_tag'):
return self._m_is_unregistered_tag
self._m_is_unregistered_tag = (( ((KaitaiStream.byte_array_index(self.id_chars, 0) >= 97) and (KaitaiStream.byte_array_index(self.id_chars, 0) <= 122)) ) or ( ((KaitaiStream.byte_array_index(self.id_chars, 1) >= 97) and (KaitaiStream.byte_array_index(self.id_chars, 1) <= 122)) ) or ( ((KaitaiStream.byte_array_index(self.id_chars, 2) >= 97) and (KaitaiStream.byte_array_index(self.id_chars, 2) <= 122)) ) or ( ((KaitaiStream.byte_array_index(self.id_chars, 3) >= 97) and (KaitaiStream.byte_array_index(self.id_chars, 3) <= 122)) ))
return getattr(self, '_m_is_unregistered_tag', None)
def raw3(self):
if hasattr(self, '_m_raw3'):
return self._m_raw3
if self.len_bytes >= 4:
self._m_raw3 = (KaitaiStream.byte_array_index(self.bytes, 3)
& 63)
return getattr(self, '_m_raw3', None)
def raw1(self):
if hasattr(self, '_m_raw1'):
return self._m_raw1
if self.len_bytes >= 2:
self._m_raw1 = (KaitaiStream.byte_array_index(self.bytes, 1)
& 63)
return getattr(self, '_m_raw1', None)
def raw2(self):
if hasattr(self, '_m_raw2'):
return self._m_raw2
if self.len_bytes >= 3:
self._m_raw2 = (KaitaiStream.byte_array_index(self.bytes, 2)
& 63)
return getattr(self, '_m_raw2', None)
def raw0(self):
if hasattr(self, '_m_raw0'):
return self._m_raw0
self._m_raw0 = (KaitaiStream.byte_array_index(self.bytes, 0) &
(127 if self.len_bytes == 1 else
(31 if self.len_bytes == 2 else
(15 if self.len_bytes == 3 else
(7 if self.len_bytes == 4 else 0)))))
return getattr(self, '_m_raw0', None)
def one_last(self):
if hasattr(self, '_m_one_last'):
return self._m_one_last if hasattr(self, '_m_one_last') else None
self._m_one_last = KaitaiStream.byte_array_index(self.one, -1)
return self._m_one_last if hasattr(self, '_m_one_last') else None
def two_mid(self):
if hasattr(self, '_m_two_mid'):
return self._m_two_mid if hasattr(self, '_m_two_mid') else None
self._m_two_mid = KaitaiStream.byte_array_index(self.two, 1)
return self._m_two_mid if hasattr(self, '_m_two_mid') else None
def two_first(self):
if hasattr(self, '_m_two_first'):
return self._m_two_first if hasattr(self, '_m_two_first') else None
self._m_two_first = KaitaiStream.byte_array_index(self.two, 0)
return self._m_two_first if hasattr(self, '_m_two_first') else None
