Data commit

Task/Nested-templated-data/Wren/nested-templated-data.wren

@@ -0,0 +1,23 @@
+import "/set" for Set
+import "/sort" for Sort
+
+var withPayload // recursive function
+withPayload = Fn.new { |template, payload, used|
+    return template.map { |item|
+        if (item is List) {
+            return withPayload.call(item, payload, used)
+        } else {
+            used.add(item)
+            return "'%(payload[item])'"
+        }
+    }.toList
+}
+
+var p = ["Payload#0", "Payload#1", "Payload#2", "Payload#3", "Payload#4", "Payload#5", "Payload#6"]
+var t = [[[1, 2], [3, 4, 1], 5]]
+var used = []
+System.print(withPayload.call(t, p, used))
+System.print()
+var unused  = Set.new(0..6).except(Set.new(used)).toList
+Sort.insertion(unused)
+System.print("The unused payloads have indices of %(unused).")