Allow negative holdings balance input. #87

cointop/portfolio.go

@@ -415,7 +415,7 @@ func (ct *Cointop) SetPortfolioHoldings() error {
 		return nil
 	}
 
-	value := normalizeFloatString(string(b))
+	value := normalizeFloatString(string(b), true)
 	shouldDelete := value == ""
 	var holdings float64
 

cointop/price_alerts.go

@@ -403,7 +403,7 @@ func (ct *Cointop) ParsePriceAlertInput(value string) (string, float64, error) {
 		operator = matches[1]
 		amountValue = matches[2]
 	}
-	amountValue = normalizeFloatString(amountValue)
+	amountValue = normalizeFloatString(amountValue, false)
 	targetPrice, err := strconv.ParseFloat(amountValue, 64)
 	if err != nil {
 		return "", 0, err

cointop/util.go

@@ -53,8 +53,11 @@ func (ct *Cointop) ClearSyncMap(syncMap sync.Map) {
 }
 
 // NormalizeFloatString normalizes a float as a string
-func normalizeFloatString(input string) string {
+func normalizeFloatString(input string, allowNegative bool) string {
 	re := regexp.MustCompile(`(\d+\.\d+|\.\d+|\d+)`)
+	if allowNegative {
+		re = regexp.MustCompile(`-?(\d+\.\d+|\.\d+|\d+)`)
+	}
 	result := re.FindStringSubmatch(input)
 	if len(result) > 0 {
 		return result[0]