diff options
| author | Xusheng <xusheng@vector35.com> | 2021-07-01 12:34:30 +0800 |
|---|---|---|
| committer | Xusheng Li <xushengli@protonmail.com> | 2021-07-05 10:11:47 +0800 |
| commit | 13ff200ba134b8704f37eca99c42b70dab0d17dc (patch) | |
| tree | 876b3db3c53f704b31152aeaede1f2edc9d27b24 /python/examples/kaitai/tr_dos_image.py | |
| parent | 4039a800349dcd587833d3e27d9137e4649818f4 (diff) | |
Remove snippet and kaitai plugin. Note their individual links.
Diffstat (limited to 'python/examples/kaitai/tr_dos_image.py')
| -rw-r--r-- | python/examples/kaitai/tr_dos_image.py | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/python/examples/kaitai/tr_dos_image.py b/python/examples/kaitai/tr_dos_image.py deleted file mode 100644 index 70298f7a..00000000 --- a/python/examples/kaitai/tr_dos_image.py +++ /dev/null @@ -1,317 +0,0 @@ -# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild - -from pkg_resources import parse_version -from .kaitaistruct import __version__ as ks_version, KaitaiStruct, KaitaiStream, BytesIO -from enum import Enum -import collections - - -if parse_version(ks_version) < parse_version('0.7'): - raise Exception("Incompatible Kaitai Struct Python API: 0.7 or later is required, but you have %s" % (ks_version)) - -class TrDosImage(KaitaiStruct): - """.trd file is a raw dump of TR-DOS (ZX-Spectrum) floppy. .trd files are - headerless and contain consequent "logical tracks", each logical track - consists of 16 256-byte sectors. - - Logical tracks are defined the same way as used by TR-DOS: for single-side - floppies it's just a physical track number, for two-side floppies sides are - interleaved, i.e. logical_track_num = (physical_track_num << 1) | side - - So, this format definition is more for TR-DOS filesystem than for .trd files, - which are formatless. - - Strings (file names, disk label, disk password) are padded with spaces and use - ZX Spectrum character set, including UDGs, block drawing chars and Basic - tokens. ASCII range is mostly standard ASCII, with few characters (^, `, DEL) - replaced with (up arrow, pound, copyright symbol). - - .trd file can be smaller than actual floppy disk, if last logical tracks are - empty (contain no file data) they can be omitted. - """ - - class DiskType(Enum): - type_80_tracks_double_side = 22 - type_40_tracks_double_side = 23 - type_80_tracks_single_side = 24 - type_40_tracks_single_side = 25 - SEQ_FIELDS = ["files"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['files']['start'] = self._io.pos() - self.files = [] - i = 0 - while True: - if not 'arr' in self._debug['files']: - self._debug['files']['arr'] = [] - self._debug['files']['arr'].append({'start': self._io.pos()}) - _t_files = self._root.File(self._io, self, self._root) - _t_files._read() - _ = _t_files - self.files.append(_) - self._debug['files']['arr'][len(self.files) - 1]['end'] = self._io.pos() - if _.is_terminator: - break - i += 1 - self._debug['files']['end'] = self._io.pos() - - class VolumeInfo(KaitaiStruct): - SEQ_FIELDS = ["catalog_end", "unused", "first_free_sector_sector", "first_free_sector_track", "disk_type", "num_files", "num_free_sectors", "tr_dos_id", "unused_2", "password", "unused_3", "num_deleted_files", "label", "unused_4"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['catalog_end']['start'] = self._io.pos() - self.catalog_end = self._io.ensure_fixed_contents(b"\x00") - self._debug['catalog_end']['end'] = self._io.pos() - self._debug['unused']['start'] = self._io.pos() - self.unused = self._io.read_bytes(224) - self._debug['unused']['end'] = self._io.pos() - self._debug['first_free_sector_sector']['start'] = self._io.pos() - self.first_free_sector_sector = self._io.read_u1() - self._debug['first_free_sector_sector']['end'] = self._io.pos() - self._debug['first_free_sector_track']['start'] = self._io.pos() - self.first_free_sector_track = self._io.read_u1() - self._debug['first_free_sector_track']['end'] = self._io.pos() - self._debug['disk_type']['start'] = self._io.pos() - self.disk_type = KaitaiStream.resolve_enum(self._root.DiskType, self._io.read_u1()) - self._debug['disk_type']['end'] = self._io.pos() - self._debug['num_files']['start'] = self._io.pos() - self.num_files = self._io.read_u1() - self._debug['num_files']['end'] = self._io.pos() - self._debug['num_free_sectors']['start'] = self._io.pos() - self.num_free_sectors = self._io.read_u2le() - self._debug['num_free_sectors']['end'] = self._io.pos() - self._debug['tr_dos_id']['start'] = self._io.pos() - self.tr_dos_id = self._io.ensure_fixed_contents(b"\x10") - self._debug['tr_dos_id']['end'] = self._io.pos() - self._debug['unused_2']['start'] = self._io.pos() - self.unused_2 = self._io.read_bytes(2) - self._debug['unused_2']['end'] = self._io.pos() - self._debug['password']['start'] = self._io.pos() - self.password = self._io.read_bytes(9) - self._debug['password']['end'] = self._io.pos() - self._debug['unused_3']['start'] = self._io.pos() - self.unused_3 = self._io.read_bytes(1) - self._debug['unused_3']['end'] = self._io.pos() - self._debug['num_deleted_files']['start'] = self._io.pos() - self.num_deleted_files = self._io.read_u1() - self._debug['num_deleted_files']['end'] = self._io.pos() - self._debug['label']['start'] = self._io.pos() - self.label = self._io.read_bytes(8) - self._debug['label']['end'] = self._io.pos() - self._debug['unused_4']['start'] = self._io.pos() - self.unused_4 = self._io.read_bytes(3) - self._debug['unused_4']['end'] = self._io.pos() - - @property - def num_tracks(self): - if hasattr(self, '_m_num_tracks'): - return self._m_num_tracks if hasattr(self, '_m_num_tracks') else None - - self._m_num_tracks = (40 if (self.disk_type.value & 1) != 0 else 80) - return self._m_num_tracks if hasattr(self, '_m_num_tracks') else None - - @property - def num_sides(self): - if hasattr(self, '_m_num_sides'): - return self._m_num_sides if hasattr(self, '_m_num_sides') else None - - self._m_num_sides = (1 if (self.disk_type.value & 8) != 0 else 2) - return self._m_num_sides if hasattr(self, '_m_num_sides') else None - - - class PositionAndLengthCode(KaitaiStruct): - SEQ_FIELDS = ["start_address", "length"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['start_address']['start'] = self._io.pos() - self.start_address = self._io.read_u2le() - self._debug['start_address']['end'] = self._io.pos() - self._debug['length']['start'] = self._io.pos() - self.length = self._io.read_u2le() - self._debug['length']['end'] = self._io.pos() - - - class Filename(KaitaiStruct): - SEQ_FIELDS = ["name"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['name']['start'] = self._io.pos() - self.name = self._io.read_bytes(8) - self._debug['name']['end'] = self._io.pos() - - @property - def first_byte(self): - if hasattr(self, '_m_first_byte'): - return self._m_first_byte if hasattr(self, '_m_first_byte') else None - - _pos = self._io.pos() - self._io.seek(0) - self._debug['_m_first_byte']['start'] = self._io.pos() - self._m_first_byte = self._io.read_u1() - self._debug['_m_first_byte']['end'] = self._io.pos() - self._io.seek(_pos) - return self._m_first_byte if hasattr(self, '_m_first_byte') else None - - - class PositionAndLengthPrint(KaitaiStruct): - SEQ_FIELDS = ["extent_no", "reserved", "length"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['extent_no']['start'] = self._io.pos() - self.extent_no = self._io.read_u1() - self._debug['extent_no']['end'] = self._io.pos() - self._debug['reserved']['start'] = self._io.pos() - self.reserved = self._io.read_u1() - self._debug['reserved']['end'] = self._io.pos() - self._debug['length']['start'] = self._io.pos() - self.length = self._io.read_u2le() - self._debug['length']['end'] = self._io.pos() - - - class PositionAndLengthGeneric(KaitaiStruct): - SEQ_FIELDS = ["reserved", "length"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['reserved']['start'] = self._io.pos() - self.reserved = self._io.read_u2le() - self._debug['reserved']['end'] = self._io.pos() - self._debug['length']['start'] = self._io.pos() - self.length = self._io.read_u2le() - self._debug['length']['end'] = self._io.pos() - - - class PositionAndLengthBasic(KaitaiStruct): - SEQ_FIELDS = ["program_and_data_length", "program_length"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['program_and_data_length']['start'] = self._io.pos() - self.program_and_data_length = self._io.read_u2le() - self._debug['program_and_data_length']['end'] = self._io.pos() - self._debug['program_length']['start'] = self._io.pos() - self.program_length = self._io.read_u2le() - self._debug['program_length']['end'] = self._io.pos() - - - class File(KaitaiStruct): - SEQ_FIELDS = ["name", "extension", "position_and_length", "length_sectors", "starting_sector", "starting_track"] - def __init__(self, _io, _parent=None, _root=None): - self._io = _io - self._parent = _parent - self._root = _root if _root else self - self._debug = collections.defaultdict(dict) - - def _read(self): - self._debug['name']['start'] = self._io.pos() - self._raw_name = self._io.read_bytes(8) - io = KaitaiStream(BytesIO(self._raw_name)) - self.name = self._root.Filename(io, self, self._root) - self.name._read() - self._debug['name']['end'] = self._io.pos() - self._debug['extension']['start'] = self._io.pos() - self.extension = self._io.read_u1() - self._debug['extension']['end'] = self._io.pos() - self._debug['position_and_length']['start'] = self._io.pos() - _on = self.extension - if _on == 66: - self.position_and_length = self._root.PositionAndLengthBasic(self._io, self, self._root) - self.position_and_length._read() - elif _on == 67: - self.position_and_length = self._root.PositionAndLengthCode(self._io, self, self._root) - self.position_and_length._read() - elif _on == 35: - self.position_and_length = self._root.PositionAndLengthPrint(self._io, self, self._root) - self.position_and_length._read() - else: - self.position_and_length = self._root.PositionAndLengthGeneric(self._io, self, self._root) - self.position_and_length._read() - self._debug['position_and_length']['end'] = self._io.pos() - self._debug['length_sectors']['start'] = self._io.pos() - self.length_sectors = self._io.read_u1() - self._debug['length_sectors']['end'] = self._io.pos() - self._debug['starting_sector']['start'] = self._io.pos() - self.starting_sector = self._io.read_u1() - self._debug['starting_sector']['end'] = self._io.pos() - self._debug['starting_track']['start'] = self._io.pos() - self.starting_track = self._io.read_u1() - self._debug['starting_track']['end'] = self._io.pos() - - @property - def is_deleted(self): - if hasattr(self, '_m_is_deleted'): - return self._m_is_deleted if hasattr(self, '_m_is_deleted') else None - - self._m_is_deleted = self.name.first_byte == 1 - return self._m_is_deleted if hasattr(self, '_m_is_deleted') else None - - @property - def is_terminator(self): - if hasattr(self, '_m_is_terminator'): - return self._m_is_terminator if hasattr(self, '_m_is_terminator') else None - - self._m_is_terminator = self.name.first_byte == 0 - return self._m_is_terminator if hasattr(self, '_m_is_terminator') else None - - @property - def contents(self): - if hasattr(self, '_m_contents'): - return self._m_contents if hasattr(self, '_m_contents') else None - - _pos = self._io.pos() - self._io.seek((((self.starting_track * 256) * 16) + (self.starting_sector * 256))) - self._debug['_m_contents']['start'] = self._io.pos() - self._m_contents = self._io.read_bytes((self.length_sectors * 256)) - self._debug['_m_contents']['end'] = self._io.pos() - self._io.seek(_pos) - return self._m_contents if hasattr(self, '_m_contents') else None - - - @property - def volume_info(self): - if hasattr(self, '_m_volume_info'): - return self._m_volume_info if hasattr(self, '_m_volume_info') else None - - _pos = self._io.pos() - self._io.seek(2048) - self._debug['_m_volume_info']['start'] = self._io.pos() - self._m_volume_info = self._root.VolumeInfo(self._io, self, self._root) - self._m_volume_info._read() - self._debug['_m_volume_info']['end'] = self._io.pos() - self._io.seek(_pos) - return self._m_volume_info if hasattr(self, '_m_volume_info') else None - - |
