Add functions to color text on a terminal

terminal/color.go

@@ -0,0 +1,26 @@
+package terminal
+
+import "fmt"
+
+//Yellow add ANSI escape codes to the given string so when printed on a terminal
+//the text foreground is yellow.
+func Yellow(s string) string {
+	return colorize(s, 220)
+}
+
+//Red add ANSI escape codes to the given string so when printed on a terminal
+//the text foreground is red.
+func Red(s string) string {
+	return colorize(s, 88)
+}
+
+//White add ANSI escape codes to the given string so when printed on a terminal
+//the text foreground is white.
+func White(s string) string {
+	return colorize(s, 244)
+}
+
+//colorize applies the given color to the given text using the "extended set foreground color" code
+func colorize(s string, color uint8) string {
+	return fmt.Sprintf("\033[38;5;%03dm%s\033[0m", color, s)
+}