fix positional handling

src/hwylterm/hwylcli.nim

@@ -932,10 +932,10 @@ func parseArgs[T](p: OptParser, target: var seq[T]) =
 
 func argOfBranch(cfg: CliCfg): NimNode =
   result = nnkOfBranch.newTree(ident"cmdArgument")
-  if cfg.args.len == 0 and cfg.subcommands.len == 0:
-    result.add quote do:
-      hwylCliError("unexpected positional argument: [b]" & p.key)
-  else:
+  # if cfg.args.len == 0 and cfg.subcommands.len == 0:
+  #   result.add quote do:
+  #     hwylCliError("unexpected positional argument: [b]" & p.key)
+  # else:
   result.add quote do:
     inc nArgs
     parseArgs(p, result)

tests/example.nim

@@ -78,7 +78,10 @@ hwylCli:
         T seq[float]
         ? "multiple floats"
       h "this will override the builtin 'h' for help"
+      def:
+        ? "a flag with a string default"
+        * "the value"
     run:
       echo "hello from `example b` command"
-      echo fmt"{thing=}, {b=}"
+      echo fmt"{thing=}, {b=}, {h=}, {def=}"