kaitai: adjustments and rearrangements for python2/3 compat

1 files changed, 179 insertions, 0 deletions

diff --git a/python/examples/kaitai/apple_single_double.py b/python/examples/kaitai/apple_single_double.py
new file mode 100644
index 00000000..b2c05d8f
--- /dev/null
+++ b/python/examples/kaitai/apple_single_double.py
@@ -0,0 +1,179 @@
+# 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 AppleSingleDouble(KaitaiStruct):
+    """AppleSingle and AppleDouble files are used by certain Mac
+    applications (e.g. Finder) to store Mac-specific file attributes on
+    filesystems that do not support that.
+    
+    Syntactically, both formats are the same, the only difference is how
+    they are being used:
+    
+    * AppleSingle means that only one file will be created on external
+      filesystem that will hold both the data (AKA "data fork" in Apple
+      terminology), and the attributes (AKA "resource fork").
+    * AppleDouble means that two files will be created: a normal file
+      that keeps the data ("data fork") is kept separately from an
+      auxiliary file that contains attributes ("resource fork"), which
+      is kept with the same name, but starting with an extra dot and
+      underscore `._` to keep it hidden.
+    
+    In modern practice (Mac OS X), Finder only uses AppleDouble to keep
+    compatibility with other OSes, as virtually nobody outside of Mac
+    understands how to access data in AppleSingle container.
+    
+    .. seealso::
+       Source - http://kaiser-edv.de/documents/AppleSingle_AppleDouble.pdf
+    """
+
+    class FileType(Enum):
+        apple_single = 333312
+        apple_double = 333319
+    SEQ_FIELDS = ["magic", "version", "reserved", "num_entries", "entries"]
+    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['magic']['start'] = self._io.pos()
+        self.magic = KaitaiStream.resolve_enum(self._root.FileType, self._io.read_u4be())
+        self._debug['magic']['end'] = self._io.pos()
+        self._debug['version']['start'] = self._io.pos()
+        self.version = self._io.read_u4be()
+        self._debug['version']['end'] = self._io.pos()
+        self._debug['reserved']['start'] = self._io.pos()
+        self.reserved = self._io.read_bytes(16)
+        self._debug['reserved']['end'] = self._io.pos()
+        self._debug['num_entries']['start'] = self._io.pos()
+        self.num_entries = self._io.read_u2be()
+        self._debug['num_entries']['end'] = self._io.pos()
+        self._debug['entries']['start'] = self._io.pos()
+        self.entries = [None] * (self.num_entries)
+        for i in range(self.num_entries):
+            if not 'arr' in self._debug['entries']:
+                self._debug['entries']['arr'] = []
+            self._debug['entries']['arr'].append({'start': self._io.pos()})
+            _t_entries = self._root.Entry(self._io, self, self._root)
+            _t_entries._read()
+            self.entries[i] = _t_entries
+            self._debug['entries']['arr'][i]['end'] = self._io.pos()
+
+        self._debug['entries']['end'] = self._io.pos()
+
+    class Entry(KaitaiStruct):
+
+        class Types(Enum):
+            data_fork = 1
+            resource_fork = 2
+            real_name = 3
+            comment = 4
+            icon_bw = 5
+            icon_color = 6
+            file_dates_info = 8
+            finder_info = 9
+            macintosh_file_info = 10
+            prodos_file_info = 11
+            msdos_file_info = 12
+            afp_short_name = 13
+            afp_file_info = 14
+            afp_directory_id = 15
+        SEQ_FIELDS = ["type", "ofs_body", "len_body"]
+        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['type']['start'] = self._io.pos()
+            self.type = KaitaiStream.resolve_enum(self._root.Entry.Types, self._io.read_u4be())
+            self._debug['type']['end'] = self._io.pos()
+            self._debug['ofs_body']['start'] = self._io.pos()
+            self.ofs_body = self._io.read_u4be()
+            self._debug['ofs_body']['end'] = self._io.pos()
+            self._debug['len_body']['start'] = self._io.pos()
+            self.len_body = self._io.read_u4be()
+            self._debug['len_body']['end'] = self._io.pos()
+
+        @property
+        def body(self):
+            if hasattr(self, '_m_body'):
+                return self._m_body if hasattr(self, '_m_body') else None
+
+            _pos = self._io.pos()
+            self._io.seek(self.ofs_body)
+            self._debug['_m_body']['start'] = self._io.pos()
+            _on = self.type
+            if _on == self._root.Entry.Types.finder_info:
+                self._raw__m_body = self._io.read_bytes(self.len_body)
+                io = KaitaiStream(BytesIO(self._raw__m_body))
+                self._m_body = self._root.FinderInfo(io, self, self._root)
+                self._m_body._read()
+            else:
+                self._m_body = self._io.read_bytes(self.len_body)
+            self._debug['_m_body']['end'] = self._io.pos()
+            self._io.seek(_pos)
+            return self._m_body if hasattr(self, '_m_body') else None
+
+
+    class FinderInfo(KaitaiStruct):
+        """Information specific to Finder.
+        
+        .. seealso::
+           older Inside Macintosh, Volume II page 84 or Volume IV page 104.
+        """
+        SEQ_FIELDS = ["file_type", "file_creator", "flags", "location", "folder_id"]
+        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['file_type']['start'] = self._io.pos()
+            self.file_type = self._io.read_bytes(4)
+            self._debug['file_type']['end'] = self._io.pos()
+            self._debug['file_creator']['start'] = self._io.pos()
+            self.file_creator = self._io.read_bytes(4)
+            self._debug['file_creator']['end'] = self._io.pos()
+            self._debug['flags']['start'] = self._io.pos()
+            self.flags = self._io.read_u2be()
+            self._debug['flags']['end'] = self._io.pos()
+            self._debug['location']['start'] = self._io.pos()
+            self.location = self._root.Point(self._io, self, self._root)
+            self.location._read()
+            self._debug['location']['end'] = self._io.pos()
+            self._debug['folder_id']['start'] = self._io.pos()
+            self.folder_id = self._io.read_u2be()
+            self._debug['folder_id']['end'] = self._io.pos()
+
+
+    class Point(KaitaiStruct):
+        """Specifies 2D coordinate in QuickDraw grid."""
+        SEQ_FIELDS = ["x", "y"]
+        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['x']['start'] = self._io.pos()
+            self.x = self._io.read_u2be()
+            self._debug['x']['end'] = self._io.pos()
+            self._debug['y']['start'] = self._io.pos()
+            self.y = self._io.read_u2be()
+            self._debug['y']['end'] = self._io.pos()
+
+
+