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palette.go
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palette.go
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package frog
import "github.com/danbrakeley/ansi"
// Color is the public interface to the underlying ANSI colors.
type Color byte
const (
Black Color = iota
DarkRed
DarkGreen
DarkYellow
DarkBlue
DarkMagenta
DarkCyan
LightGray
DarkGray
Red
Green
Yellow
Blue
Magenta
Cyan
White
)
// Palette is the primary (0) and secondary (1) colors for each log level
type Palette [levelMax][2]Color
var DefaultPalette = Palette{
{DarkGreen, DarkGray}, // Transient
{Cyan, DarkCyan}, // Verbose
{White, LightGray}, // Info
{Yellow, DarkYellow}, // Warning
{Red, DarkRed}, // Error
}
var DarkPalette = Palette{
{DarkGray, DarkGray}, // Transient
{DarkGray, DarkGray}, // Verbose
{DarkGray, DarkGray}, // Info
{DarkGray, DarkGray}, // Warning
{DarkGray, DarkGray}, // Error
}
// internally, a palette is an ANSI escape sequence (string) for each pair of colors at each log level
type ansicolors [levelMax][2]string
func (p *Palette) toANSI() ansicolors {
var out ansicolors
for i := levelMin; i < levelMax; i++ {
out[i][0] = ansiFgColor(p[i][0])
out[i][1] = ansiFgColor(p[i][1])
}
return out
}
func ansiFgColor(c Color) string {
switch c {
case Black:
return ansi.FgBlack
case DarkRed:
return ansi.FgDarkRed
case DarkGreen:
return ansi.FgDarkGreen
case DarkYellow:
return ansi.FgDarkYellow
case DarkBlue:
return ansi.FgDarkBlue
case DarkMagenta:
return ansi.FgDarkMagenta
case DarkCyan:
return ansi.FgDarkCyan
case LightGray:
return ansi.FgLightGray
case DarkGray:
return ansi.FgDarkGray
case Red:
return ansi.FgRed
case Green:
return ansi.FgGreen
case Yellow:
return ansi.FgYellow
case Blue:
return ansi.FgBlue
case Magenta:
return ansi.FgMagenta
case Cyan:
return ansi.FgCyan
case White:
return ansi.FgWhite
}
return ""
}