Allow dot operator on function results; change debug print info for function registration.

src/api.rs

@@ -17,13 +17,13 @@ impl<'a> Engine<'a> {
         f: Box<FnAny>,
     ) {
         debug_println!(
-            "Register function: {} ({})",
+            "Register function: {} for {} parameter(s)",
             fn_name,
-            args.iter()
+            if let Some(a) = &args {
-                .map(|x| (*x).type_name())
+                format!("{}", a.len())
-                .map(|name| self.map_type_name(name))
+            } else {
-                .collect::<Vec<_>>()
+                "no".to_string()
-                .join(", ")
+            }
         );
 
         let spec = FnSpec {

src/engine.rs

@@ -430,8 +430,13 @@ impl Engine<'_> {
                 value
             }
 
+            // {expr}.???
+            expr => {
+                let mut target = self.eval_expr(scope, expr)?;
+                self.get_dot_val_helper(scope, target.as_mut(), dot_rhs)
+            }
             // Syntax error
-            _ => Err(EvalAltResult::ErrorDotExpr(dot_lhs.position())),
+            //_ => Err(EvalAltResult::ErrorDotExpr(dot_lhs.position())),
         }
     }