Add start of program and parser

register.py

@@ -1,6 +1,29 @@
 #!/usr/bin/env python3
 import os, sys
+import typing
+from pathlib import Path
+
+XDG_DATA_HOME=os.getenv("XDG_DATA_HOME")
+XDG_DATA_HOME=(Path(XDG_DATA_HOME) if XDG_DATA_HOME is not None else
+    Path('~').expanduser() / ".local/share")
+
+MCSERVER_REGISTRY=XDG_DATA_HOME / "mcserver.json"
+
+def insert_config(name: str, path: typing.Union[str, bytes, os.PathLike]=MCSERVER_REGISTRY):
+    pass
+
+def remove_config(name: str, path: typing.Union[str, bytes, os.PathLike]=MCSERVER_REGISTRY):
+    pass
+
+def get_config(name: str, path: typing.Union[str, bytes, os.PathLike]=MCSERVER_REGISTRY):
+    pass
+
 
 if __name__ == '__main__':
     import argparse
-    p = argparse.ArgumentParser
+    p = argparse.ArgumentParser(description="manage/read mcserver directory list")
+    subp = p.add_subparsers(help="mode")
+    parser_insert = subp.add_parser("insert", help="insert entry into directory list")
+    parser_remove = subp.add_parser("remove", help="remove entry from directory list")
+    parser_get = subp.add_parser("get", help="get entry from directory list")
+    p.parse_args()