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colors.go
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colors.go
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package main
import (
"fmt"
"math"
"strconv"
"strings"
)
// see the 256-color codes
// http://i.stack.imgur.com/UQVe5.png
type Color int8
const (
Black Color = 0
Red = 1
Green = 2
Yellow = 3
Blue = 4
Magenta = 5
Cyan = 6
White = 7
BrightBlack = 60
BrightRed = 61
BrightGreen = 62
BrightYellow = 63
BrightBlue = 64
BrightMagenta = 65
BrightCyan = 66
BrightWhite = 67
)
var lightThemeMap = map[int]int{
67: 0,
7: 60,
60: 7,
0: 67,
}
func applyTheme(index int) int {
if *args.light {
newIndex, hasNewIndex := lightThemeMap[index]
if hasNewIndex {
return newIndex
} else if index >= 60 {
return index - 60
}
return index + 60
}
return index
}
func NamedFg(color Color) string {
index := applyTheme(int(color))
colored := []string{"\x1b[", strconv.Itoa(index + 30), "m"}
return strings.Join(colored, "")
}
func NamedBg(color Color) string {
index := applyTheme(int(color))
colored := []string{"\x1b[", strconv.Itoa(index + 40), "m"}
return strings.Join(colored, "")
}
// Fg wraps an 8-bit foreground color code in the ANSI escape sequence
func Fg(code int) string {
colored := []string{"\x1b[38;5;", strconv.Itoa(code), "m"}
return strings.Join(colored, "")
}
// Bg wraps an 8-bit background color code in the ANSI escape sequence
func Bg(code int) string {
colored := []string{"\x1b[48;5;", strconv.Itoa(code), "m"}
return strings.Join(colored, "")
}
func avg(a float64, b float64) int {
m := (a + b) / 2
return int(math.Ceil(m))
}
// Rgb2code converts RGB values (up to 5) to an 8-bit color code
func Rgb2code(r int, g int, b int, theme bool) int {
if theme && *args.light {
r_, g_, b_ := float64(r), float64(g), float64(b)
r = 5 - avg(g_, b_)
g = 5 - avg(r_, b_)
b = 5 - avg(r_, g_)
}
code := 36*r + 6*g + b + 16
if code < 16 || 231 < code {
panic(fmt.Errorf("Invalid RGB values (%d, %d, %d)", r, g, b))
}
return code
}
// Gray2code converts a scalar of "grayness" to an 8-bit color code
func Gray2code(lightness int) int {
if *args.light {
lightness = 23 - lightness
}
code := lightness + 232
if code < 232 || 255 < code {
panic(fmt.Errorf("Invalid lightness value (%d) for gray", lightness))
}
return code
}
// FgRGB converts RGB values (up to 5) to an ANSI-escaped foreground 8-bit color code
func FgRGB(r int, g int, b int) string {
return Fg(Rgb2code(r, g, b, false))
}
// Theme-sensitive version
func FgRGBT(r int, g int, b int) string {
return Fg(Rgb2code(r, g, b, true))
}
// BgRGB converts RGB values (up to 5) to an ANSI-escaped background 8-bit color code
func BgRGB(r int, g int, b int) string {
return Bg(Rgb2code(r, g, b, false))
}
// Theme-sensitive version
func BgRGBT(r int, g int, b int) string {
return Bg(Rgb2code(r, g, b, true))
}
// FgGray converts a scalar of "grayness" to an ANSI-escaped foreground 8-bit color code
func FgGray(lightness int) string {
return Fg(Gray2code(lightness))
}
// BgGray converts a scalar of "grayness" to an ANSI-escaped background 8-bit color code
func BgGray(lightness int) string {
return Bg(Gray2code(lightness))
}
const (
// Reset undoes ANSI color codes
Reset = "\x1b[0m"
Bold = "\x1b[1m"
)
var (
// FileColor is a mapping of filetypes to colors
FileColor map[string]FileColorConfig
// SizeColor has the color mappings for ranges of file sizes
SizeColor map[string]string
// ConfigColor holds mappings for other various colors
ConfigColor map[string]map[string]string
// PermsColor holds color mappings for users and groups
PermsColor map[string]map[string]string
)
var (
// FileAliases converts alternative extensions to their canonical mapping in FileColor
FileAliases = map[string]string{
"s": "asm",
"b": "bf",
"c++": "c",
"cc": "c",
"cpp": "c",
"cs": "c",
"cxx": "c",
"d": "c",
"h": "c",
"h++": "c",
"hh": "c",
"hpp": "c",
"hxx": "c",
"pxd": "c",
"cljc": "clj",
"cljs": "clj",
"class": "compiled",
"elc": "compiled",
"hi": "compiled",
"o": "compiled",
"pyc": "compiled",
"7z": "compress",
"Z": "compress",
"bz2": "compress",
"deb": "compress",
"dmg": "compress",
"dpkg": "compress",
"gz": "compress",
"iso": "compress",
"jar": "compress",
"lzma": "compress",
"par": "compress",
"rar": "compress",
"rpm": "compress",
"tar": "compress",
"tc": "compress",
"tgz": "compress",
"txz": "compress",
"whl": "compress",
"xz": "compress",
"z": "compress",
"zip": "compress",
"less": "css",
"sass": "css",
"scss": "css",
"styl": "css",
"djvu": "document",
"doc": "document",
"docx": "document",
"dvi": "document",
"eml": "document",
"fotd": "document",
"odp": "document",
"odt": "document",
"pdf": "document",
"ppt": "document",
"pptx": "document",
"rtf": "document",
"xls": "document",
"xlsx": "document",
"f03": "f",
"f77": "f",
"f90": "f",
"f95": "f",
"for": "f",
"fpp": "f",
"ftn": "f",
"fsi": "fs",
"fsscript": "fs",
"fsx": "fs",
"dna": "gb",
"gsh": "groovy",
"gvy": "groovy",
"gy": "groovy",
"htm": "html",
"xhtml": "html",
"bson": "js",
"jade": "js",
"json": "js",
"mjs": "js",
"ts": "js",
"cjs": "js",
"tsx": "jsx",
"cjsx": "jsx",
"mat": "m",
"markdown": "md",
"mkd": "md",
"rst": "md",
"sml": "ml",
"mli": "ml",
"aac": "media",
"alac": "media",
"audio": "media",
"avi": "media",
"bmp": "media",
"cbr": "media",
"cbz": "media",
"eps": "media",
"flac": "media",
"flv": "media",
"gif": "media",
"glp": "media",
"gltf": "media",
"ico": "media",
"image": "media",
"jpeg": "media",
"jpg": "media",
"m2v": "media",
"m4a": "media",
"mka": "media",
"mkv": "media",
"mov": "media",
"mp3": "media",
"mp4": "media",
"mpeg": "media",
"mpg": "media",
"nef": "media",
"ogg": "media",
"ogm": "media",
"ogv": "media",
"opus": "media",
"orf": "media",
"pbm": "media",
"pgm": "media",
"png": "media",
"pnm": "media",
"ppm": "media",
"pxm": "media",
"sixel": "media",
"stl": "media",
"svg": "media",
"tif": "media",
"tiff": "media",
"video": "media",
"vob": "media",
"wav": "media",
"webm": "media",
"webp": "media",
"wma": "media",
"wmv": "media",
"xpm": "media",
"php3": "php",
"php4": "php",
"php5": "php",
"phpt": "php",
"phtml": "php",
"ipynb": "py",
"pickle": "py",
"pkl": "py",
"pyx": "py",
"bash": "sh",
"csh": "sh",
"fish": "sh",
"ksh": "sh",
"ps1": "sh",
"zsh": "sh",
"plpgsql": "sql",
"plsql": "sql",
"psql": "sql",
"tsql": "sql",
"vimrc": "vim",
}
)
type FileColorConfig struct {
light string
dark string
themeSwitch bool
}
func generateColors() {
FileColor = map[string]FileColorConfig{
"as": {FgRGB(5, 0, 0), FgRGB(3, 0, 0), true},
"asm": {FgRGBT(5, 4, 3), FgRGBT(5, 3, 1), false},
"apk": {FgRGB(1, 5, 0), FgRGB(1, 3, 0), true},
"bf": {FgRGBT(5, 4, 3), FgRGBT(5, 3, 1), false},
"bzl": {FgRGB(1, 5, 0), FgRGB(1, 3, 0), true},
"c": {FgRGB(0, 3, 5), FgRGB(0, 1, 5), true},
"clj": {FgRGB(5, 1, 2), FgRGB(4, 0, 2), true},
"coffee": {FgRGB(3, 2, 0), FgRGB(2, 1, 0), true},
"cr": {FgRGB(1, 5, 0), FgRGB(1, 3, 0), true},
"cson": {FgRGB(3, 2, 0), FgRGB(2, 1, 0), true},
"css": {FgRGB(5, 3, 5), FgRGB(5, 1, 5), true},
"dart": {FgRGB(0, 4, 3), FgRGB(0, 2, 3), true},
"diff": {FgRGB(0, 5, 0), FgRGB(5, 0, 0), true},
"elm": {FgRGB(0, 5, 5), FgRGB(0, 3, 5), true},
"erl": {FgRGB(4, 0, 1), FgRGB(2, 0, 1), true},
"ex": {FgRGB(2, 1, 5), FgRGB(1, 0, 5), true},
"f": {FgRGB(5, 2, 0), FgRGB(2, 1, 0), true},
"fs": {FgRGB(0, 4, 5), FgRGB(0, 2, 4), true},
"gb": {FgRGB(0, 4, 3), FgRGB(0, 2, 1), true},
"gleam": {FgRGB(5, 3, 5), FgRGB(5, 1, 5), true},
"go": {FgRGB(2, 5, 3), FgRGB(2, 3, 3), true},
"graphql": {FgRGB(5, 3, 5), FgRGB(5, 1, 5), true},
"groovy": {FgRGBT(5, 4, 3), FgRGBT(5, 3, 1), false},
"gv": {FgRGB(3, 2, 5), FgRGB(2, 1, 5), true},
"hs": {FgRGB(2, 1, 5), FgRGB(1, 0, 5), true},
"html": {FgRGB(1, 5, 5), FgRGB(1, 3, 3), true},
"hx": {FgRGB(5, 2, 0), FgRGB(2, 1, 0), true},
"ino": {FgRGB(0, 4, 3), FgRGB(0, 2, 1), true},
"java": {FgRGB(3, 2, 0), FgRGB(2, 1, 0), true},
"jl": {FgRGB(3, 2, 5), FgRGB(2, 1, 5), true},
"js": {FgRGB(4, 4, 0), FgRGB(2, 2, 0), true},
"jsx": {FgRGB(1, 5, 5), FgRGB(1, 3, 3), true},
"kt": {FgRGB(2, 1, 5), FgRGB(1, 0, 5), true},
"lock": {FgGray(11), FgGray(7), false},
"log": {FgGray(11), FgGray(7), false},
"lua": {FgRGB(0, 3, 5), FgRGB(0, 1, 5), true},
"m": {FgRGBT(5, 4, 3), FgRGBT(5, 3, 1), false},
"md": {FgRGB(1, 5, 5), FgRGB(1, 3, 3), true},
"ml": {FgRGB(5, 2, 0), FgRGB(2, 1, 0), true},
"nim": {FgRGB(4, 4, 0), FgRGB(2, 2, 0), true},
"nix": {FgRGB(0, 3, 5), FgRGB(0, 1, 5), true},
"php": {FgRGB(0, 3, 4), FgRGB(0, 2, 2), true},
"pl": {FgRGB(2, 1, 5), FgRGB(1, 0, 5), true},
"py": {FgRGB(0, 4, 0), FgRGB(0, 2, 0), true},
"r": {FgRGB(0, 5, 5), FgRGB(0, 3, 5), true},
"rb": {FgRGB(5, 1, 0), FgRGB(3, 1, 0), true},
"rs": {FgRGB(4, 3, 0), FgRGB(2, 2, 0), true},
"scala": {FgRGB(5, 0, 0), FgRGB(3, 0, 0), true},
"sh": {FgRGB(4, 0, 4), FgRGB(2, 0, 2), true},
"sol": {FgRGB(0, 3, 5), FgRGB(0, 1, 5), true},
"sql": {FgRGB(4, 5, 3), FgRGB(3, 4, 0), true},
"svelte": {FgRGB(5, 2, 0), FgRGB(5, 0, 0), true},
"swift": {FgRGBT(5, 4, 3), FgRGBT(5, 3, 1), false},
"vim": {FgRGB(0, 4, 0), FgRGB(0, 2, 0), true},
"vue": {FgRGB(0, 4, 3), FgRGB(0, 2, 1), true},
"xml": {FgRGB(1, 5, 5), FgRGB(1, 3, 3), true},
"zig": {FgRGB(4, 4, 0), FgRGB(2, 2, 0), true},
"compiled": {FgGray(11), FgGray(7), false},
"compress": {FgRGB(5, 0, 0), FgRGB(3, 0, 0), true},
"document": {FgRGB(5, 0, 0), FgRGB(3, 0, 0), true},
"media": {FgRGB(3, 2, 5), FgRGB(2, 1, 5), true},
"_default": {FgGray(20), FgGray(11), false},
}
SizeColor = map[string]string{
"B": FgRGBT(0, 1, 5),
"K": FgRGBT(0, 2, 5),
"M": FgRGBT(1, 4, 5),
"G": FgRGBT(2, 5, 5),
"T": FgRGBT(3, 5, 5),
}
ConfigColor = map[string]map[string]string{
"dir": {
"name": Bold + BgRGBT(0, 0, 2) + FgGray(23),
},
".dir": {
"name": Bold + BgRGBT(0, 0, 1) + FgGray(18),
},
"folderHeader": {
"arrow": NamedFg(Yellow),
"main": BgGray(2) + NamedFg(Yellow),
"slash": FgGray(5),
"lastFolder": Bold + NamedFg(BrightYellow),
"error": NamedFg(BrightYellow) + NamedBg(Red),
},
"link": {
"name": NamedFg(BrightGreen),
"nameDir": Bold + BgRGBT(0, 0, 2) + NamedFg(BrightCyan),
"arrow": NamedFg(BrightGreen),
"arrowDir": NamedFg(BrightCyan),
"broken": NamedFg(BrightRed),
},
"device": {
"name": Bold + BgGray(3) + NamedFg(BrightYellow), // /dev
},
"socket": {
"name": Bold + BgRGBT(1, 0, 1) + FgGray(23),
},
"pipe": {
"name": Bold + BgRGBT(2, 1, 0) + FgGray(23),
},
"stats": {
"text": BgGray(2) + FgGray(15),
"number": FgRGBT(0, 2, 3),
"ms": FgRGBT(0, 3, 5),
},
}
PermsColor = map[string]map[string]string{
"user": {
"root": FgRGB(5, 0, 2),
"daemon": FgRGB(4, 2, 1),
"_self": FgRGB(0, 5, 0),
"_default": FgRGB(0, 3, 3),
},
"group": {
"wheel": FgRGB(3, 0, 0),
"staff": FgRGB(0, 2, 0),
"admin": FgRGB(2, 2, 0),
"_default": FgRGB(2, 0, 2),
},
"other": {
"_default": FgGray(15),
},
}
}