kaitai: adjustments and rearrangements for python2/3 compat

1 files changed, 180 insertions, 0 deletions

diff --git a/python/examples/kaitai/bmp.py b/python/examples/kaitai/bmp.py
new file mode 100644
index 00000000..41f039d9
--- /dev/null
+++ b/python/examples/kaitai/bmp.py
@@ -0,0 +1,180 @@
+# 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 Bmp(KaitaiStruct):
+
+    class Compressions(Enum):
+        rgb = 0
+        rle8 = 1
+        rle4 = 2
+        bitfields = 3
+        jpeg = 4
+        png = 5
+        cmyk = 11
+        cmyk_rle8 = 12
+        cmyk_rle4 = 13
+    SEQ_FIELDS = ["file_hdr", "len_dib_header", "dib_header"]
+    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_hdr']['start'] = self._io.pos()
+        self.file_hdr = self._root.FileHeader(self._io, self, self._root)
+        self.file_hdr._read()
+        self._debug['file_hdr']['end'] = self._io.pos()
+        self._debug['len_dib_header']['start'] = self._io.pos()
+        self.len_dib_header = self._io.read_s4le()
+        self._debug['len_dib_header']['end'] = self._io.pos()
+        self._debug['dib_header']['start'] = self._io.pos()
+        _on = self.len_dib_header
+        if _on == 104:
+            self._raw_dib_header = self._io.read_bytes((self.len_dib_header - 4))
+            io = KaitaiStream(BytesIO(self._raw_dib_header))
+            self.dib_header = self._root.BitmapCoreHeader(io, self, self._root)
+            self.dib_header._read()
+        elif _on == 12:
+            self._raw_dib_header = self._io.read_bytes((self.len_dib_header - 4))
+            io = KaitaiStream(BytesIO(self._raw_dib_header))
+            self.dib_header = self._root.BitmapCoreHeader(io, self, self._root)
+            self.dib_header._read()
+        elif _on == 40:
+            self._raw_dib_header = self._io.read_bytes((self.len_dib_header - 4))
+            io = KaitaiStream(BytesIO(self._raw_dib_header))
+            self.dib_header = self._root.BitmapInfoHeader(io, self, self._root)
+            self.dib_header._read()
+        elif _on == 124:
+            self._raw_dib_header = self._io.read_bytes((self.len_dib_header - 4))
+            io = KaitaiStream(BytesIO(self._raw_dib_header))
+            self.dib_header = self._root.BitmapCoreHeader(io, self, self._root)
+            self.dib_header._read()
+        else:
+            self.dib_header = self._io.read_bytes((self.len_dib_header - 4))
+        self._debug['dib_header']['end'] = self._io.pos()
+
+    class FileHeader(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://msdn.microsoft.com/en-us/library/dd183374.aspx
+        """
+        SEQ_FIELDS = ["magic", "len_file", "reserved1", "reserved2", "ofs_bitmap"]
+        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 = self._io.ensure_fixed_contents(b"\x42\x4D")
+            self._debug['magic']['end'] = self._io.pos()
+            self._debug['len_file']['start'] = self._io.pos()
+            self.len_file = self._io.read_u4le()
+            self._debug['len_file']['end'] = self._io.pos()
+            self._debug['reserved1']['start'] = self._io.pos()
+            self.reserved1 = self._io.read_u2le()
+            self._debug['reserved1']['end'] = self._io.pos()
+            self._debug['reserved2']['start'] = self._io.pos()
+            self.reserved2 = self._io.read_u2le()
+            self._debug['reserved2']['end'] = self._io.pos()
+            self._debug['ofs_bitmap']['start'] = self._io.pos()
+            self.ofs_bitmap = self._io.read_s4le()
+            self._debug['ofs_bitmap']['end'] = self._io.pos()
+
+
+    class BitmapCoreHeader(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://msdn.microsoft.com/en-us/library/dd183372.aspx
+        """
+        SEQ_FIELDS = ["image_width", "image_height", "num_planes", "bits_per_pixel"]
+        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['image_width']['start'] = self._io.pos()
+            self.image_width = self._io.read_u2le()
+            self._debug['image_width']['end'] = self._io.pos()
+            self._debug['image_height']['start'] = self._io.pos()
+            self.image_height = self._io.read_u2le()
+            self._debug['image_height']['end'] = self._io.pos()
+            self._debug['num_planes']['start'] = self._io.pos()
+            self.num_planes = self._io.read_u2le()
+            self._debug['num_planes']['end'] = self._io.pos()
+            self._debug['bits_per_pixel']['start'] = self._io.pos()
+            self.bits_per_pixel = self._io.read_u2le()
+            self._debug['bits_per_pixel']['end'] = self._io.pos()
+
+
+    class BitmapInfoHeader(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://msdn.microsoft.com/en-us/library/dd183376.aspx
+        """
+        SEQ_FIELDS = ["image_width", "image_height", "num_planes", "bits_per_pixel", "compression", "len_image", "x_px_per_m", "y_px_per_m", "num_colors_used", "num_colors_important"]
+        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['image_width']['start'] = self._io.pos()
+            self.image_width = self._io.read_u4le()
+            self._debug['image_width']['end'] = self._io.pos()
+            self._debug['image_height']['start'] = self._io.pos()
+            self.image_height = self._io.read_u4le()
+            self._debug['image_height']['end'] = self._io.pos()
+            self._debug['num_planes']['start'] = self._io.pos()
+            self.num_planes = self._io.read_u2le()
+            self._debug['num_planes']['end'] = self._io.pos()
+            self._debug['bits_per_pixel']['start'] = self._io.pos()
+            self.bits_per_pixel = self._io.read_u2le()
+            self._debug['bits_per_pixel']['end'] = self._io.pos()
+            self._debug['compression']['start'] = self._io.pos()
+            self.compression = KaitaiStream.resolve_enum(self._root.Compressions, self._io.read_u4le())
+            self._debug['compression']['end'] = self._io.pos()
+            self._debug['len_image']['start'] = self._io.pos()
+            self.len_image = self._io.read_u4le()
+            self._debug['len_image']['end'] = self._io.pos()
+            self._debug['x_px_per_m']['start'] = self._io.pos()
+            self.x_px_per_m = self._io.read_u4le()
+            self._debug['x_px_per_m']['end'] = self._io.pos()
+            self._debug['y_px_per_m']['start'] = self._io.pos()
+            self.y_px_per_m = self._io.read_u4le()
+            self._debug['y_px_per_m']['end'] = self._io.pos()
+            self._debug['num_colors_used']['start'] = self._io.pos()
+            self.num_colors_used = self._io.read_u4le()
+            self._debug['num_colors_used']['end'] = self._io.pos()
+            self._debug['num_colors_important']['start'] = self._io.pos()
+            self.num_colors_important = self._io.read_u4le()
+            self._debug['num_colors_important']['end'] = self._io.pos()
+
+
+    @property
+    def image(self):
+        if hasattr(self, '_m_image'):
+            return self._m_image if hasattr(self, '_m_image') else None
+
+        _pos = self._io.pos()
+        self._io.seek(self.file_hdr.ofs_bitmap)
+        self._debug['_m_image']['start'] = self._io.pos()
+        self._m_image = self._io.read_bytes_full()
+        self._debug['_m_image']['end'] = self._io.pos()
+        self._io.seek(_pos)
+        return self._m_image if hasattr(self, '_m_image') else None
+
+