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update go min version Update Vendors: * code.gitea.io/gitea-vet v0.2.0 -> v0.2.1 * code.gitea.io/sdk/gitea v0.13.0 -> v0.13.1 * github.com/AlecAivazis/survey v2.1.1 -> v2.2.2 * github.com/adrg/xdg v0.2.1 -> v0.2.2 * github.com/araddon/dateparse d820a6159ab1 -> 8aadafed4dc4 * github.com/go-git/go-git v5.1.0 -> v5.2.0 * github.com/muesli/termenv v0.7.2 -> v0.7.4 * github.com/stretchr/testify v1.5.1 -> v1.6.1 * github.com/urfave/cli v2.2.0 -> v2.3.0 Co-authored-by: 6543 <6543@obermui.de> Reviewed-on: https://gitea.com/gitea/tea/pulls/250 Reviewed-by: Andrew Thornton <art27@cantab.net> Reviewed-by: mrsdizzie <info@mrsdizzie.com> Co-Authored-By: 6543 <6543@noreply.gitea.io> Co-Committed-By: 6543 <6543@noreply.gitea.io>
292 lines
5.5 KiB
Go
292 lines
5.5 KiB
Go
package ansi
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import (
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"bytes"
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"fmt"
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"strconv"
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"strings"
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)
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const (
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black = iota
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red
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green
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yellow
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blue
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magenta
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cyan
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white
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defaultt = 9
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normalIntensityFG = 30
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highIntensityFG = 90
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normalIntensityBG = 40
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highIntensityBG = 100
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start = "\033["
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normal = "0;"
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bold = "1;"
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dim = "2;"
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underline = "4;"
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blink = "5;"
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inverse = "7;"
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strikethrough = "9;"
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// Reset is the ANSI reset escape sequence
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Reset = "\033[0m"
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// DefaultBG is the default background
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DefaultBG = "\033[49m"
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// DefaultFG is the default foreground
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DefaultFG = "\033[39m"
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)
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// Black FG
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var Black string
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// Red FG
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var Red string
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// Green FG
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var Green string
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// Yellow FG
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var Yellow string
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// Blue FG
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var Blue string
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// Magenta FG
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var Magenta string
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// Cyan FG
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var Cyan string
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// White FG
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var White string
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// LightBlack FG
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var LightBlack string
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// LightRed FG
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var LightRed string
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// LightGreen FG
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var LightGreen string
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// LightYellow FG
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var LightYellow string
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// LightBlue FG
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var LightBlue string
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// LightMagenta FG
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var LightMagenta string
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// LightCyan FG
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var LightCyan string
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// LightWhite FG
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var LightWhite string
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var (
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plain = false
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// Colors maps common color names to their ANSI color code.
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Colors = map[string]int{
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"black": black,
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"red": red,
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"green": green,
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"yellow": yellow,
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"blue": blue,
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"magenta": magenta,
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"cyan": cyan,
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"white": white,
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"default": defaultt,
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}
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)
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func init() {
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for i := 0; i < 256; i++ {
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Colors[strconv.Itoa(i)] = i
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}
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Black = ColorCode("black")
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Red = ColorCode("red")
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Green = ColorCode("green")
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Yellow = ColorCode("yellow")
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Blue = ColorCode("blue")
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Magenta = ColorCode("magenta")
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Cyan = ColorCode("cyan")
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White = ColorCode("white")
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LightBlack = ColorCode("black+h")
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LightRed = ColorCode("red+h")
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LightGreen = ColorCode("green+h")
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LightYellow = ColorCode("yellow+h")
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LightBlue = ColorCode("blue+h")
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LightMagenta = ColorCode("magenta+h")
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LightCyan = ColorCode("cyan+h")
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LightWhite = ColorCode("white+h")
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}
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// ColorCode returns the ANSI color color code for style.
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func ColorCode(style string) string {
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return colorCode(style).String()
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}
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// Gets the ANSI color code for a style.
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func colorCode(style string) *bytes.Buffer {
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buf := bytes.NewBufferString("")
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if plain || style == "" {
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return buf
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}
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if style == "reset" {
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buf.WriteString(Reset)
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return buf
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} else if style == "off" {
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return buf
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}
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foregroundBackground := strings.Split(style, ":")
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foreground := strings.Split(foregroundBackground[0], "+")
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fgKey := foreground[0]
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fg := Colors[fgKey]
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fgStyle := ""
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if len(foreground) > 1 {
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fgStyle = foreground[1]
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}
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bg, bgStyle := "", ""
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if len(foregroundBackground) > 1 {
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background := strings.Split(foregroundBackground[1], "+")
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bg = background[0]
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if len(background) > 1 {
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bgStyle = background[1]
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}
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}
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buf.WriteString(start)
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base := normalIntensityFG
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buf.WriteString(normal) // reset any previous style
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if len(fgStyle) > 0 {
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if strings.Contains(fgStyle, "b") {
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buf.WriteString(bold)
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}
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if strings.Contains(fgStyle, "d") {
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buf.WriteString(dim)
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}
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if strings.Contains(fgStyle, "B") {
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buf.WriteString(blink)
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}
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if strings.Contains(fgStyle, "u") {
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buf.WriteString(underline)
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}
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if strings.Contains(fgStyle, "i") {
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buf.WriteString(inverse)
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}
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if strings.Contains(fgStyle, "s") {
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buf.WriteString(strikethrough)
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}
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if strings.Contains(fgStyle, "h") {
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base = highIntensityFG
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}
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}
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// if 256-color
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n, err := strconv.Atoi(fgKey)
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if err == nil {
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fmt.Fprintf(buf, "38;5;%d;", n)
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} else {
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fmt.Fprintf(buf, "%d;", base+fg)
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}
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base = normalIntensityBG
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if len(bg) > 0 {
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if strings.Contains(bgStyle, "h") {
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base = highIntensityBG
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}
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// if 256-color
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n, err := strconv.Atoi(bg)
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if err == nil {
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fmt.Fprintf(buf, "48;5;%d;", n)
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} else {
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fmt.Fprintf(buf, "%d;", base+Colors[bg])
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}
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}
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// remove last ";"
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buf.Truncate(buf.Len() - 1)
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buf.WriteRune('m')
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return buf
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}
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// Color colors a string based on the ANSI color code for style.
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func Color(s, style string) string {
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if plain || len(style) < 1 {
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return s
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}
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buf := colorCode(style)
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buf.WriteString(s)
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buf.WriteString(Reset)
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return buf.String()
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}
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// ColorFunc creates a closure to avoid computation ANSI color code.
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func ColorFunc(style string) func(string) string {
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if style == "" {
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return func(s string) string {
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return s
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}
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}
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color := ColorCode(style)
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return func(s string) string {
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if plain || s == "" {
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return s
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}
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buf := bytes.NewBufferString(color)
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buf.WriteString(s)
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buf.WriteString(Reset)
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result := buf.String()
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return result
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}
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}
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// DisableColors disables ANSI color codes. The default is false (colors are on).
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func DisableColors(disable bool) {
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plain = disable
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if plain {
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Black = ""
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Red = ""
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Green = ""
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Yellow = ""
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Blue = ""
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Magenta = ""
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Cyan = ""
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White = ""
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LightBlack = ""
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LightRed = ""
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LightGreen = ""
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LightYellow = ""
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LightBlue = ""
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LightMagenta = ""
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LightCyan = ""
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LightWhite = ""
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} else {
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Black = ColorCode("black")
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Red = ColorCode("red")
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Green = ColorCode("green")
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Yellow = ColorCode("yellow")
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Blue = ColorCode("blue")
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Magenta = ColorCode("magenta")
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Cyan = ColorCode("cyan")
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White = ColorCode("white")
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LightBlack = ColorCode("black+h")
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LightRed = ColorCode("red+h")
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LightGreen = ColorCode("green+h")
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LightYellow = ColorCode("yellow+h")
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LightBlue = ColorCode("blue+h")
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LightMagenta = ColorCode("magenta+h")
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LightCyan = ColorCode("cyan+h")
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LightWhite = ColorCode("white+h")
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}
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}
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