ANSI parser now also handles SGR 39 and 49. Fixes #347

ansi.go

@@ -145,9 +145,13 @@ func (a *ansi) Write(text []byte) (int, error) {
 						case "30", "31", "32", "33", "34", "35", "36", "37":
 							colorNumber, _ := strconv.Atoi(field)
 							foreground = lookupColor(colorNumber-30, false)
+						case "39":
+							foreground = "-"
 						case "40", "41", "42", "43", "44", "45", "46", "47":
 							colorNumber, _ := strconv.Atoi(field)
 							background = lookupColor(colorNumber-40, false)
+						case "49":
+							background = "-"
 						case "90", "91", "92", "93", "94", "95", "96", "97":
 							colorNumber, _ := strconv.Atoi(field)
 							foreground = lookupColor(colorNumber-90, true)

util.go

@@ -124,7 +124,11 @@ func overlayStyle(background tcell.Color, defaultStyle tcell.Style, fgColor, bgC
 
 	style = style.Foreground(defFg)
 	if fgColor != "" {
-		style = style.Foreground(tcell.GetColor(fgColor))
+		if fgColor == "-" {
+			style = style.Foreground(defFg)
+		} else {
+			style = style.Foreground(tcell.GetColor(fgColor))
+		}
 	}
 
 	if bgColor == "-" || bgColor == "" && defBg != tcell.ColorDefault {