get mvp of new parser!

f2.go

@@ -106,16 +106,61 @@ func joinDists(old_dist Dist, new_dist Dist, op string) (Dist, error) {
 		low, high := multiplyLogBounds(old_dist.Lognormal.low, old_dist.Lognormal.high, new_dist.Lognormal.low, new_dist.Lognormal.high)
 		return Dist{Type: "Lognormal", Lognormal: Lognormal{low: low, high: high}, Samples: nil}, nil
 	default:
-		fmt.Printf("For now, can't do anything besides multiplying lognormals")
+		fmt.Printf("For now, can't do anything besides multiplying lognormals\n")
 	}
 	return old_dist, errors.New("Error blah blah")
 }
 
+/* Pretty print distributions */
+func prettyPrintLognormal(low float64, high float64) {
+	// fmt.Printf("=> %.1f %.1f\n", low, high)
+	fmt.Printf("=> ")
+	switch {
+	case math.Abs(low) >= 1_000_000_000_000:
+		fmt.Printf("%.1fT", low/1_000_000_000_000)
+	case math.Abs(low) >= 1_000_000_000:
+		fmt.Printf("%.1fB", low/1_000_000_000)
+	case math.Abs(low) >= 1_000_000:
+		fmt.Printf("%.1fM", low/1_000_000)
+	case math.Abs(low) >= 1_000:
+		fmt.Printf("%.1fK", low/1_000)
+	case math.Abs(low) >= 1_000:
+		fmt.Printf("%.1fK", low/1_000)
+	default:
+		fmt.Printf("%.1f", low)
+	}
+	fmt.Printf(" ")
+	switch {
+	case math.Abs(high) >= 1_000_000_000_000:
+		fmt.Printf("%.1fT", high/1_000_000_000_000)
+	case math.Abs(high) >= 1_000_000_000:
+		fmt.Printf("%.1fB", high/1_000_000_000)
+	case math.Abs(high) >= 1_000_000:
+		fmt.Printf("%.1fM", high/1_000_000)
+	case math.Abs(high) >= 1_000:
+		fmt.Printf("%.1fK", high/1_000)
+	case math.Abs(high) >= 1_000:
+		fmt.Printf("%.1fK", high/1_000)
+	default:
+		fmt.Printf("%.1f", high)
+	}
+	fmt.Printf("\n")
+	// fmt.Printf("=> %.1f %.1f\n", low, high)
+}
+
+func prettyPrintDist(dist Dist) {
+	if dist.Type == "Lognormal" {
+		prettyPrintLognormal(dist.Lognormal.low, dist.Lognormal.high)
+	} else {
+		fmt.Printf("%v", dist)
+	}
+}
+
 /* Main event loop */
 func main() {
 	reader := bufio.NewReader(os.Stdin)
 	old_dist := Dist{Type: "Lognormal", Lognormal: Lognormal{low: 1, high: 1}, Samples: nil} // Could also just be a scalar
-	fmt.Printf("Hello world")
+	// fmt.Printf("Hello world")
 
 EventForLoop:
 	for {
@@ -133,5 +178,6 @@ EventForLoop:
 
 		}
 		old_dist = joint_dist
+		prettyPrintDist(old_dist)
 	}
 }