Show stock lines in red when the change is < 0

filter.go

@@ -63,7 +63,7 @@ func (filter *Filter) Apply(stocks []Stock) []Stock {
 		values["avgVolume"]     = stringToNumber(stock.AvgVolume)
 		values["pe"]            = stringToNumber(stock.PeRatio)
 		values["peX"]           = stringToNumber(stock.PeRatioX)
-		values["advancing"]     = stock.Advancing                 // Remains bool.
+		values["direction"]     = stock.Direction                 // Remains int.
 
 		result, err := filter.profile.filterExpression.Evaluate(values)
 

layout.go

@@ -146,7 +146,7 @@ func (layout *Layout) prettify(quotes *Quotes) []Stock {
 	// Iterate over the list of stocks and properly format all its columns.
 	//
 	for i, stock := range quotes.stocks {
-		pretty[i].Advancing = stock.Advancing
+		pretty[i].Direction = stock.Direction
 		//
 		// Iterate over the list of stock columns. For each column name:
 		// - Get current column value.
@@ -222,7 +222,7 @@ func buildQuotesTemplate() *template.Template {
 
 
 {{.Header}}
-{{range.Stocks}}{{if .Advancing}}<green>{{end}}{{.Ticker}}{{.LastTrade}}{{.Change}}{{.ChangePct}}{{.Open}}{{.Low}}{{.High}}{{.Low52}}{{.High52}}{{.Volume}}{{.AvgVolume}}{{.PeRatio}}{{.Dividend}}{{.Yield}}{{.MarketCap}}{{.PreOpen}}{{.AfterHours}}</>
+{{range.Stocks}}{{if eq .Direction 1}}<green>{{else if eq .Direction -1}}<red>{{end}}{{.Ticker}}{{.LastTrade}}{{.Change}}{{.ChangePct}}{{.Open}}{{.Low}}{{.High}}{{.Low52}}{{.High52}}{{.Volume}}{{.AvgVolume}}{{.PeRatio}}{{.Dividend}}{{.Yield}}{{.MarketCap}}{{.PreOpen}}{{.AfterHours}}</>
 {{end}}`
 
 	return template.Must(template.New(`quotes`).Parse(markup))
@@ -243,13 +243,13 @@ func group(stocks []Stock) []Stock {
 	current := 0
 
 	for _, stock := range stocks {
-		if stock.Advancing {
+		if stock.Direction >= 0 {
 			grouped[current] = stock
 			current++
 		}
 	}
 	for _, stock := range stocks {
-		if !stock.Advancing {
+		if stock.Direction < 0 {
 			grouped[current] = stock
 			current++
 		}

yahoo_quotes.go

@@ -22,7 +22,7 @@ const quotesURLv7QueryParts = `&range=1d&interval=5m&indicators=close&includeTim
 const noDataIndicator = `N/A`
 
 // Stock stores quote information for the particular stock ticker. The data
-// for all the fields except 'Advancing' is fetched using Yahoo market API.
+// for all the fields except 'Direction' is fetched using Yahoo market API.
 type Stock struct {
 	Ticker     string `json:"symbol"`                      // Stock ticker.
 	LastTrade  string `json:"regularMarketPrice"`          // l1: last trade.
@@ -42,7 +42,7 @@ type Stock struct {
 	MarketCap  string `json:"marketCap"`                   // j3: market cap real time.
 	MarketCapX string `json:"marketCap"`                   // j1: market cap (fallback when real time is N/A).
 	Currency   string `json:"currency"`                    // String code for currency of stock.
-	Advancing  bool   // True when change is >= $0.
+	Direction  int     // -1 when change is < $0, 0 when change is = $0, 1 when change is > $0.
 	PreOpen    string `json:"preMarketChangePercent,omitempty"`
 	AfterHours string `json:"postMarketChangePercent,omitempty"`
 }
@@ -188,8 +188,13 @@ func (quotes *Quotes) parse2(body []byte) (*Quotes, error) {
 			fmt.Println("-------------------")
 		*/
 		adv, err := strconv.ParseFloat(quotes.stocks[i].Change, 64)
+		quotes.stocks[i].Direction = 0
 		if err == nil {
-			quotes.stocks[i].Advancing = adv >= 0.0
+			if adv < 0.0 {
+				quotes.stocks[i].Direction = -1
+			} else if adv > 0.0 {
+				quotes.stocks[i].Direction = 1
+			}
 		}
 	}
 	return quotes, nil
@@ -202,7 +207,7 @@ func (quotes *Quotes) parse(body []byte) *Quotes {
 	quotes.stocks = make([]Stock, len(lines))
 	//
 	// Get the total number of fields in the Stock struct. Skip the last
-	// Advanicing field which is not fetched.
+	// Advancing field which is not fetched.
 	//
 	fieldsCount := reflect.ValueOf(quotes.stocks[0]).NumField() - 1
 	//
@@ -226,10 +231,17 @@ func (quotes *Quotes) parse(body []byte) *Quotes {
 			quotes.stocks[i].MarketCap = quotes.stocks[i].MarketCapX
 		}
 		//
-		// Stock is advancing if the change is not negative (i.e. $0.00
+		// Get the direction of the stock
-		// is also "advancing").
 		//
-		quotes.stocks[i].Advancing = (quotes.stocks[i].Change[0:1] != `-`)
+		adv, err := strconv.ParseFloat(quotes.stocks[i].Change, 64)
+		quotes.stocks[i].Direction = 0
+		if err == nil {
+			if adv < 0 {
+				quotes.stocks[i].Direction = -1
+			} else if (adv > 0) {
+				quotes.stocks[i].Direction = 1
+			}
+		}
 	}
 
 	return quotes