impl normalize in HTTP

src/ana/normalize.go

@@ -44,20 +44,26 @@ func (n Normalizer) Normalize(deltas ledger.Deltas) ledger.Deltas {
 		if !like(delta) {
 			continue
 		}
-		func() {
-			for pattern := range n.m {
-				if regexp.MustCompile(pattern).MatchString(delta.Name) {
-					for _, normalize := range n.m[pattern] {
-						if normalize.startDate < delta.Date {
-							delta.Value /= normalize.factor
-							return
-						}
-					}
-				}
-			}
-		}()
-		deltas[i] = delta
+		deltas[i] = n.NormalizeDelta(delta)
 	}
 
 	return deltas
 }
+
+func (n Normalizer) NormalizeDelta(delta ledger.Delta) ledger.Delta {
+	delta.Value /= n.NormalizeFactor(delta)
+	return delta
+}
+
+func (n Normalizer) NormalizeFactor(delta ledger.Delta) float64 {
+	for pattern := range n.m {
+		if regexp.MustCompile(pattern).MatchString(delta.Name) {
+			for _, normalize := range n.m[pattern] {
+				if normalize.startDate < delta.Date {
+					return normalize.factor
+				}
+			}
+		}
+	}
+	return 1.0
+}