beaver/color/README.md

Color

Beaver comes with the color sub-package that can be used even without Beaver calls.

Formatting a string with a single attribute

text := color.FgRed.Format("red")

Formatting a string with a full color

text := color.New(color.BgGreen, color.FgRed, color.Bold).Format("green background, red text, and bold")

Formatting strings with multiple colors

The following are different ways to print This is a color test! where the word color is red while everything else is green.

setup

Assuming each example is preceded by

green := color.New(color.FgGreen)
red := color.New(color.FgRed)

pure fmt.Println

fmt.Println(green.Format("This is a"), red.Format("color"), green.Format("test!"))

color.Wrap

fmt.Println(green.Wrap("This is a #{color} test!", red))

string formatting with fmt.Printf and color.Wrap

fmt.Printf(green.Wrap("This is a #{%s} test!\n", red), "color")

using a different directive prefix

color.DirectivePrefix('$')
fmt.Printf(green.Wrap("This is a ${%s} test!\n", red), "color")