up follow livre

venv/lib/python3.13/site-packages/fontTools/ttLib/macUtils.py

@@ -0,0 +1,54 @@
+"""ttLib.macUtils.py -- Various Mac-specific stuff."""
+
+from io import BytesIO
+from fontTools.misc.macRes import ResourceReader, ResourceError
+
+
+def getSFNTResIndices(path):
+    """Determine whether a file has a 'sfnt' resource fork or not."""
+    try:
+        reader = ResourceReader(path)
+        indices = reader.getIndices("sfnt")
+        reader.close()
+        return indices
+    except ResourceError:
+        return []
+
+
+def openTTFonts(path):
+    """Given a pathname, return a list of TTFont objects. In the case
+    of a flat TTF/OTF file, the list will contain just one font object;
+    but in the case of a Mac font suitcase it will contain as many
+    font objects as there are sfnt resources in the file.
+    """
+    from fontTools import ttLib
+
+    fonts = []
+    sfnts = getSFNTResIndices(path)
+    if not sfnts:
+        fonts.append(ttLib.TTFont(path))
+    else:
+        for index in sfnts:
+            fonts.append(ttLib.TTFont(path, index))
+        if not fonts:
+            raise ttLib.TTLibError("no fonts found in file '%s'" % path)
+    return fonts
+
+
+class SFNTResourceReader(BytesIO):
+    """Simple read-only file wrapper for 'sfnt' resources."""
+
+    def __init__(self, path, res_name_or_index):
+        from fontTools import ttLib
+
+        reader = ResourceReader(path)
+        if isinstance(res_name_or_index, str):
+            rsrc = reader.getNamedResource("sfnt", res_name_or_index)
+        else:
+            rsrc = reader.getIndResource("sfnt", res_name_or_index)
+        if rsrc is None:
+            raise ttLib.TTLibError("sfnt resource not found: %s" % res_name_or_index)
+        reader.close()
+        self.rsrc = rsrc
+        super(SFNTResourceReader, self).__init__(rsrc.data)
+        self.name = path