Just another update

Task/Parsing-RPN-calculator-algorithm/Julia/parsing-rpn-calculator-algorithm.julia

@@ -0,0 +1,16 @@
+function rpn(s)
+    stack = Any[]
+    for op in map(eval, map(parse, split(s)))
+        if isa(op, Function)
+            arg2 = pop!(stack)
+            arg1 = pop!(stack)
+            push!(stack, op(arg1, arg2))
+        else
+            push!(stack, op)
+        end
+        println("$op: ", join(stack, ", "))
+    end
+    length(stack) != 1 && error("invalid RPN expression $s")
+    return stack[1]
+end
+rpn("3 4 2 * 1 5 - 2 3 ^ ^ / +")