kaitai: adjustments and rearrangements for python2/3 compat

1 files changed, 107 insertions, 0 deletions

diff --git a/python/examples/kaitai/stl.py b/python/examples/kaitai/stl.py
new file mode 100644
index 00000000..18971107
--- /dev/null
+++ b/python/examples/kaitai/stl.py
@@ -0,0 +1,107 @@
+# 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
+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 Stl(KaitaiStruct):
+    """STL files are used to represent simple 3D models, defined using
+    triangular 3D faces.
+    
+    Initially it was introduced as native format for 3D Systems
+    Stereolithography CAD system, but due to its extreme simplicity, it
+    was adopted by a wide range of 3D modelling, CAD, rapid prototyping
+    and 3D printing applications as the simplest 3D model exchange
+    format.
+    
+    STL is extremely bare-bones format: there are no complex headers, no
+    texture / color support, no units specifications, no distinct vertex
+    arrays. Whole model is specified as a collection of triangular
+    faces.
+    
+    There are two versions of the format (text and binary), this spec
+    describes binary version.
+    """
+    SEQ_FIELDS = ["header", "num_triangles", "triangles"]
+    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['header']['start'] = self._io.pos()
+        self.header = self._io.read_bytes(80)
+        self._debug['header']['end'] = self._io.pos()
+        self._debug['num_triangles']['start'] = self._io.pos()
+        self.num_triangles = self._io.read_u4le()
+        self._debug['num_triangles']['end'] = self._io.pos()
+        self._debug['triangles']['start'] = self._io.pos()
+        self.triangles = [None] * (self.num_triangles)
+        for i in range(self.num_triangles):
+            if not 'arr' in self._debug['triangles']:
+                self._debug['triangles']['arr'] = []
+            self._debug['triangles']['arr'].append({'start': self._io.pos()})
+            _t_triangles = self._root.Triangle(self._io, self, self._root)
+            _t_triangles._read()
+            self.triangles[i] = _t_triangles
+            self._debug['triangles']['arr'][i]['end'] = self._io.pos()
+
+        self._debug['triangles']['end'] = self._io.pos()
+
+    class Triangle(KaitaiStruct):
+        """Each STL triangle is defined by its 3 points in 3D space and a
+        normal vector, which is generally used to determine where is
+        "inside" and "outside" of the model.
+        """
+        SEQ_FIELDS = ["normal", "vertices"]
+        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['normal']['start'] = self._io.pos()
+            self.normal = self._root.Vec3d(self._io, self, self._root)
+            self.normal._read()
+            self._debug['normal']['end'] = self._io.pos()
+            self._debug['vertices']['start'] = self._io.pos()
+            self.vertices = [None] * (3)
+            for i in range(3):
+                if not 'arr' in self._debug['vertices']:
+                    self._debug['vertices']['arr'] = []
+                self._debug['vertices']['arr'].append({'start': self._io.pos()})
+                _t_vertices = self._root.Vec3d(self._io, self, self._root)
+                _t_vertices._read()
+                self.vertices[i] = _t_vertices
+                self._debug['vertices']['arr'][i]['end'] = self._io.pos()
+
+            self._debug['vertices']['end'] = self._io.pos()
+
+
+    class Vec3d(KaitaiStruct):
+        SEQ_FIELDS = ["x", "y", "z"]
+        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_f4le()
+            self._debug['x']['end'] = self._io.pos()
+            self._debug['y']['start'] = self._io.pos()
+            self.y = self._io.read_f4le()
+            self._debug['y']['end'] = self._io.pos()
+            self._debug['z']['start'] = self._io.pos()
+            self.z = self._io.read_f4le()
+            self._debug['z']['end'] = self._io.pos()
+
+
+