Initial version

color.go

@@ -0,0 +1,55 @@
+package color
+
+import (
+	"fmt"
+	"os"
+)
+
+// Whether the terminal supports true color
+var TrueColor = os.Getenv("COLORTERM") == "truecolor"
+
+// Color code
+type Code int
+
+// Color codes
+const (
+	Black Code = iota + 30
+	Red
+	Green
+	Yellow
+	Blue
+	Magenta
+	Cyan
+	White
+)
+
+func (code Code) String(args ...any) string {
+	return fmt.Sprintf("\x1b[%dm%s\x1b[0m", code, fmt.Sprint(args...))
+}
+
+func (code Code) Print(args ...any) {
+	if !TrueColor {
+		fmt.Print(args...)
+		return
+	}
+
+	fmt.Printf("\x1b[%dm%s\x1b[0m", code, fmt.Sprint(args...))
+}
+
+func (code Code) Printf(format string, args ...any) {
+	if !TrueColor {
+		fmt.Printf(format, args...)
+		return
+	}
+
+	fmt.Printf("\x1b[%dm%s\x1b[0m", code, fmt.Sprintf(format, args...))
+}
+
+func (code Code) Println(args ...any) {
+	if !TrueColor {
+		fmt.Println(args...)
+		return
+	}
+
+	fmt.Printf("\x1b[%dm%s\x1b[0m\n", code, fmt.Sprint(args...))
+}

go.mod

@@ -0,0 +1,3 @@
+module git.sharkk.net/Go/Color
+
+go 1.23.0

tests/color_test.go

@@ -0,0 +1,40 @@
+package color_test
+
+import (
+	"testing"
+
+	color "git.sharkk.net/Go/Color"
+)
+
+func TestPrint(t *testing.T) {
+	color.Black.Print("Black\n")
+	color.White.Print("White\n")
+	color.Red.Print("Red\n")
+	color.Green.Print("Green\n")
+	color.Blue.Print("Blue\n")
+	color.Yellow.Print("Yellow\n")
+	color.Magenta.Print("Magenta\n")
+	color.Cyan.Print("Cyan\n")
+}
+
+func TestPrintf(t *testing.T) {
+	color.Black.Printf("%s\n", "Black")
+	color.White.Printf("%s\n", "White")
+	color.Red.Printf("%s\n", "Red")
+	color.Green.Printf("%s\n", "Green")
+	color.Blue.Printf("%s\n", "Blue")
+	color.Yellow.Printf("%s\n", "Yellow")
+	color.Magenta.Printf("%s\n", "Magenta")
+	color.Cyan.Printf("%s\n", "Cyan")
+}
+
+func TestPrintln(t *testing.T) {
+	color.Black.Println("Black")
+	color.White.Println("White")
+	color.Red.Println("Red")
+	color.Green.Println("Green")
+	color.Blue.Println("Blue")
+	color.Yellow.Println("Yellow")
+	color.Magenta.Println("Magenta")
+	color.Cyan.Println("Cyan")
+}