Add process:flush, fix printing

src/ludus/process.clj

@@ -66,12 +66,20 @@
 
 	:list {::data/type ::data/clj
 			:name "list"
-			:body (fn [] (keys @processes))}
+			:body (fn [] (into [] (keys @processes)))}
 
 	:info {::data/type ::data/clj
 			:name "info"
 			:body (fn [pid]
 				(let [process @(get @processes pid)
 					queue (into [] (:queue process))]
-					(assoc process :queue queue)))}
+					(assoc process :queue queue ::data/dict true)))}
+
+  :flush {::data/type ::data/clj
+      :name "flush"
+      :body (fn [pid]
+        (let [process (get @processes pid)
+          queue (into [] (:queue @process))]
+          (swap! process #(assoc % :queue clojure.lang.PersistentQueue/EMPTY))
+          queue))}
 	}})

src/ludus/show.clj

@@ -31,7 +31,7 @@
     (str "#{" (apply str (into [] show-keyed (dissoc v ::data/dict))) "}")
 
     :else
-    (pr-str v)))
+    (with-out-str (pp/pprint v))))
 
 (defn- show-set [v]
   (str "${" (apply str (into [] show-linear v)) "}"))
@@ -47,7 +47,9 @@
     (vector? v) (show-vector v)
     (set? v) (show-set v)
     (map? v) (show-map v)
-    :else (with-out-str (pp/pprint v))))
+    :else
+    (with-out-str (pp/pprint v))
+    ))
   ([v & vs] (apply str (into [] (comp (map show) (interpose " ")) (concat [v] vs))))
   )