Color.RGBString(): now returns modern CSS RGB format

Author: mazznoer

CHANGELOG.md

@@ -1,10 +1,24 @@
 # Changelog
 
-## [Unreleased](https://github.com/mazznoer/csscolorparser/compare/v0.1.4...HEAD)
+## [Unreleased](https://github.com/mazznoer/csscolorparser/compare/v0.1.7...HEAD)
+
+## v0.1.7
+
+### Added
+
+- Support parsing `lab()` and `lch()` color format.
+- Make `NamedColors` public.
+- `Color.RGBString()` returns modern CSS RGB format.
+
+## v0.1.6
+
+- Doc and code improvements.
+
+## v0.1.5
 
 ### Added
 
-- `Clamp()`
+- `Color.Clamp()`
 
 ## v0.1.4
 

README.md

@@ -37,7 +37,7 @@ if err != nil {
 fmt.Printf("R:%.3f, G:%.3f, B:%.3f, A:%.3f", c.R, c.G, c.B, c.A) // R:1.000, G:0.843, B:0.000, A:1.000
 fmt.Println(c.RGBA255())   // 255 215 0 255
 fmt.Println(c.HexString()) // #ffd700
-fmt.Println(c.RGBString()) // rgb(255,215,0)
+fmt.Println(c.RGBString()) // rgb(255 215 0)
 ```
 
 ## Try It Online

colorparser.go

@@ -55,10 +55,11 @@ func (c Color) HexString() string {
 // RGBString returns CSS RGB string.
 func (c Color) RGBString() string {
 	r, g, b, _ := c.RGBA255()
-	if c.A < 1 {
-		return fmt.Sprintf("rgba(%d,%d,%d,%v)", r, g, b, c.A)
+	a := uint8(clamp0_1(c.A) * 100)
+	if a < 100 {
+		return fmt.Sprintf("rgb(%d %d %d / %d%%)", r, g, b, a)
 	}
-	return fmt.Sprintf("rgb(%d,%d,%d)", r, g, b)
+	return fmt.Sprintf("rgb(%d %d %d)", r, g, b)
 }
 
 // Name returns name of this color if its available.

colorparser_test.go

@@ -56,12 +56,12 @@ func Test_Color(t *testing.T) {
 
 	c = Color{0, 0, 1, 1}
 	test(t, c.HexString(), "#0000ff")
-	test(t, c.RGBString(), "rgb(0,0,255)")
+	test(t, c.RGBString(), "rgb(0 0 255)")
 	testGoColor(t, c, color.NRGBA{0, 0, 255, 255})
 
 	c = Color{0, 0, 1, 0.5}
 	test(t, c.HexString(), "#0000ff80")
-	test(t, c.RGBString(), "rgba(0,0,255,0.5)")
+	test(t, c.RGBString(), "rgb(0 0 255 / 50%)")
 	//testGoColor(t, c, color.NRGBA{0,0,255,127})
 
 	testGoColor(t, Color{A: 1}, color.Gray{0})

example_test.go

@@ -6,8 +6,8 @@ import (
 	"github.com/mazznoer/csscolorparser"
 )
 
-func Example_namedColor() {
-	c, err := csscolorparser.Parse("gold")
+func Example() {
+	c, err := csscolorparser.Parse("rgb(100% 0% 0% / 50%)")
 
 	if err != nil {
 		panic(err)
@@ -18,26 +18,23 @@ func Example_namedColor() {
 	fmt.Println(c.HexString())
 	fmt.Println(c.RGBString())
 	// Output:
-	// R:1.000, G:0.843, B:0.000, A:1.000
-	// 255 215 0 255
-	// #ffd700
-	// rgb(255,215,0)
+	// R:1.000, G:0.000, B:0.000, A:0.500
+	// 255 0 0 128
+	// #ff000080
+	// rgb(255 0 0 / 50%)
 }
 
-func Example_rgbColor() {
-	c, err := csscolorparser.Parse("rgba(100%, 0%, 0%, 0.5)")
+func ExampleColor_Name() {
+	c, err := csscolorparser.Parse("#ffd700")
 
 	if err != nil {
 		panic(err)
 	}
 
-	fmt.Printf("R:%.3f, G:%.3f, B:%.3f, A:%.3f\n", c.R, c.G, c.B, c.A)
-	fmt.Println(c.RGBA255())
-	fmt.Println(c.HexString())
 	fmt.Println(c.RGBString())
+	name, _ := c.Name()
+	fmt.Println(name)
 	// Output:
-	// R:1.000, G:0.000, B:0.000, A:0.500
-	// 255 0 0 128
-	// #ff000080
-	// rgba(255,0,0,0.5)
+	// rgb(255 215 0)
+	// gold
 }