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Fixed 8-bit background colors

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This commit is contained in:
Miles Whittaker 2020-05-11 22:51:34 -04:00
parent 1bab2394e4
commit 971141a5d9
1 changed files with 9 additions and 14 deletions
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23
ansi.go
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@ -101,14 +101,11 @@ func (a *ansi) Write(text []byte) (int, error) {
}
break
}
lookupColor := func(colorNumber int, bright bool) string {
if colorNumber < 0 || colorNumber > 7 {
lookupColor := func(colorNumber int) string {
if colorNumber < 0 || colorNumber > 15 {
return "black"
}
if bright {
colorNumber += 8
}
return [...]string{
return []string{
"black",
"maroon",
"green",
@ -144,29 +141,27 @@ func (a *ansi) Write(text []byte) (int, error) {
clearAttributes = true
case "30", "31", "32", "33", "34", "35", "36", "37":
colorNumber, _ := strconv.Atoi(field)
foreground = lookupColor(colorNumber-30, false)
foreground = lookupColor(colorNumber-30)
case "39":
foreground = "-"
case "40", "41", "42", "43", "44", "45", "46", "47":
colorNumber, _ := strconv.Atoi(field)
background = lookupColor(colorNumber-40, false)
background = lookupColor(colorNumber-40)
case "49":
background = "-"
case "90", "91", "92", "93", "94", "95", "96", "97":
colorNumber, _ := strconv.Atoi(field)
foreground = lookupColor(colorNumber-90, true)
foreground = lookupColor(colorNumber-82)
case "100", "101", "102", "103", "104", "105", "106", "107":
colorNumber, _ := strconv.Atoi(field)
background = lookupColor(colorNumber-100, true)
background = lookupColor(colorNumber-92)
case "38", "48":
var color string
if len(fields) > index+1 {
if fields[index+1] == "5" && len(fields) > index+2 { // 8-bit colors.
colorNumber, _ := strconv.Atoi(fields[index+2])
if colorNumber <= 7 {
color = lookupColor(colorNumber, false)
} else if colorNumber <= 15 {
color = lookupColor(colorNumber, true)
if colorNumber <= 15 {
color = lookupColor(colorNumber)
} else if colorNumber <= 231 {
red := (colorNumber - 16) / 36
green := ((colorNumber - 16) / 6) % 6