fix

tests/test.py

@@ -0,0 +1,53 @@
+import re
+from pprint import pprint
+
+
+class CommandParseError(Exception):
+    pass
+
+def parse_command(command: str) -> dict:
+    pattern = re.compile(r"""
+        (?P<command>^\S+)                       
+        |                                      
+        (?P<arg_prefix>-{1,3})(?P<arg>\w+)       
+        |                                      
+        (?P<value>\S+)                   
+    """, re.VERBOSE)
+
+    tokens = pattern.findall(command)
+    if not tokens:
+        raise CommandParseError("Invalid command format")
+
+    result = {}
+    args = {}
+    current_arg = None
+
+    for token in tokens:
+        command_name, arg_prefix, arg_name, value = token
+
+        if command_name:
+            if "command" in result:
+                raise CommandParseError("Multiple command names found")
+            result["command"] = command_name
+
+        elif arg_name:
+            if current_arg:
+                raise CommandParseError(f"Argument {current_arg} has no value")
+            current_arg = f"{arg_prefix}{arg_name}"
+
+        elif value:
+            if not current_arg:
+                raise CommandParseError(f"Unexpected value: {value}")
+            args[current_arg] = value
+            current_arg = None
+
+    if current_arg:
+        raise CommandParseError(f"Argument {current_arg} has no value")
+
+    result["args"] = args
+    return result
+
+
+command_str = "run"
+parsed = (command_str)
+pprint(parsed)