dont use local path separator for uri

Author: briangow

wfdb/io/record.py

@@ -1829,31 +1829,35 @@ def rdheader(record_name, pn_dir=None, rd_segments=False):
     """
     dir_name, base_record_name = os.path.split(record_name)
     dir_name = os.path.abspath(dir_name)
+    file_name = f"{base_record_name}.hea"
+
+    # If this is a cloud path, use posixpath to construct the path
+    if any(dir_name.startswith(proto) for proto in CLOUD_PROTOCOLS):
+        with fsspec.open(
+            posixpath.join(dir_name, file_name),
+            mode="rb"
+        ) as f:
+            header_content = f.read()
 
-    # If this is a cloud path we leave it as is
-    if (pn_dir is not None) and any(
-        pn_dir.startswith(proto) for proto in CLOUD_PROTOCOLS
-    ):
-        pass
     # If it isn't a cloud path, construct the download path using the database version
-    elif (pn_dir is not None) and ("." not in pn_dir):
-        dir_list = pn_dir.split("/")
-        pn_dir = posixpath.join(
-            dir_list[0], download.get_version(dir_list[0]), *dir_list[1:]
-        )
+    elif (pn_dir is not None):
+        if ("." not in pn_dir):
+            dir_list = pn_dir.split("/")
+            pn_dir = posixpath.join(
+                dir_list[0], download.get_version(dir_list[0]), *dir_list[1:]
+            )
 
-    # Read the local or remote header file.
-    file_name = f"{base_record_name}.hea"
-    if pn_dir is None:
+        header_content = download._stream_header(file_name, pn_dir)
+
+    # If it isn't a cloud path or a PhysioNet path, we treat as a local file
+    else:
         with fsspec.open(
             os.path.join(dir_name, file_name),
             "r",
             encoding="ascii",
             errors="ignore",
         ) as f:
             header_content = f.read()
-    else:
-        header_content = download._stream_header(file_name, pn_dir)
 
     # Separate comment and non-comment lines
     header_lines, comment_lines = header.parse_header_content(header_content)