45 lines
1.1 KiB
Markdown
45 lines
1.1 KiB
Markdown
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# Color
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Beaver comes with the `color` sub-package that can be used even without Beaver calls.
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## Formatting a string with a single attribute
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```go
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text := color.FgRed.Format("red")
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```
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## Formatting a string with a full color
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```go
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text := color.New(color.BgGreen, color.FgRed, color.Bold).Format("green background, red text, and bold")
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```
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## Formatting strings with multiple colors
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The following are different ways to print `This is a color test!`
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where the word `color` is red while everything else is `green`.
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### setup
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Assuming each example is preceded by
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```go
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green := color.New(color.FgGreen)
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red := color.New(color.FgRed)
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```
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#### pure `fmt.Println`
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```go
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fmt.Println(green.Format("This is a"), red.Format("color"), green.Format("test!"))
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```
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#### `color.Wrap`
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```go
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fmt.Println(green.Wrap("This is a #{color} test!", red))
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```
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#### string formatting with `fmt.Printf` and `color.Wrap`
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```go
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fmt.Printf(green.Wrap("This is a #{%s} test!\n", red), "color")
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```
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#### using a different directive prefix
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```go
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color.DirectivePrefix('$')
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fmt.Printf(green.Wrap("This is a ${%s} test!\n", red), "color")
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```
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