refactor: excel parse

2026-04-16 10:01:11 +08:00
parent 680ecc320f
commit f62f95ec02
7941 changed files with 2899112 additions and 0 deletions
@@ -0,0 +1,48 @@
+# Copyright (c) 2011-2023, Manfred Moitzi
+# License: MIT License
+from __future__ import annotations
+from typing import TYPE_CHECKING, Optional
+from ezdxf.lldxf.types import is_valid_handle
+
+if TYPE_CHECKING:
+    from ezdxf.document import Drawing
+
+START_HANDLE = "1"
+
+
+class HandleGenerator:
+    def __init__(self, start_value: str = START_HANDLE):
+        self._handle: int = max(1, int(start_value, 16))
+
+    reset = __init__
+
+    def __str__(self):
+        return "%X" % self._handle
+
+    def next(self) -> str:
+        next_handle = self.__str__()
+        self._handle += 1
+        return next_handle
+
+    __next__ = next
+
+    def copy(self) -> HandleGenerator:
+        return HandleGenerator(str(self))
+
+
+class UnderlayKeyGenerator(HandleGenerator):
+    def __str__(self):
+        return "Underlay%05d" % self._handle
+
+
+def safe_handle(handle: Optional[str], doc: Optional["Drawing"] = None) -> str:
+    if handle is None:
+        return "0"
+    assert isinstance(handle, str), "invalid type"
+    if doc is not None:
+        if handle not in doc.entitydb:
+            return "0"
+        return handle
+    if not is_valid_handle(handle):
+        return "0"
+    return handle.upper()