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colors.go
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package main
import (
"fmt"
"strconv"
"strings"
)
// see the color codes
// http://i.stack.imgur.com/UQVe5.png
// 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, "")
}
// Rgb2code converts RGB values (up to 5) to an 8-bit color code
func Rgb2code(r int, g int, b int) int {
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 {
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))
}
// 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))
}
// 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 makes text bold
Bold = "\x1b[1m"
)
var (
// FileColor is a mapping of filetypes to colors
FileColor = map[string][2]string{
"as": [2]string{Fg(196), Fg(124)},
"asm": [2]string{Fg(223), Fg(215)},
"bf": [2]string{Fg(223), Fg(215)},
"c": [2]string{Fg(39), Fg(27)},
"clj": [2]string{Fg(204), Fg(162)},
"coffee": [2]string{Fg(136), Fg(94)},
"cr": [2]string{Fg(82), Fg(70)},
"cson": [2]string{Fg(136), Fg(94)},
"css": [2]string{Fg(219), Fg(207)},
"dart": [2]string{Fg(43), Fg(31)},
"diff": [2]string{Fg(10), Fg(9)},
"elm": [2]string{Fg(51), Fg(39)},
"erl": [2]string{Fg(161), Fg(89)},
"ex": [2]string{Fg(99), Fg(57)},
"f": [2]string{Fg(208), Fg(94)},
"fs": [2]string{Fg(45), Fg(32)},
"gb": [2]string{Fg(43), Fg(29)},
"go": [2]string{Fg(121), Fg(109)},
"graphql": [2]string{Fg(219), Fg(207)},
"groovy": [2]string{Fg(223), Fg(215)},
"gv": [2]string{Fg(141), Fg(99)},
"hs": [2]string{Fg(99), Fg(57)},
"html": [2]string{Fg(87), Fg(73)},
"ino": [2]string{Fg(43), Fg(29)},
"java": [2]string{Fg(136), Fg(94)},
"jl": [2]string{Fg(141), Fg(99)},
"js": [2]string{FgRGB(4, 4, 0), FgRGB(2, 2, 0)},
"jsx": [2]string{Fg(87), Fg(73)},
"lock": [2]string{FgGray(8), FgGray(5)},
"log": [2]string{FgGray(8), FgGray(5)},
"lua": [2]string{Fg(39), Fg(27)},
"m": [2]string{Fg(208), Fg(196)},
"md": [2]string{Fg(87), Fg(73)},
"ml": [2]string{Fg(208), Fg(94)},
"php": [2]string{Fg(30), Fg(22)},
"pl": [2]string{Fg(99), Fg(57)},
"py": [2]string{Fg(34), Fg(28)},
"r": [2]string{Fg(51), Fg(39)},
"rb": [2]string{FgRGB(5, 1, 0), FgRGB(3, 1, 1)},
"rs": [2]string{Fg(208), Fg(94)},
"scala": [2]string{Fg(196), Fg(124)},
"sh": [2]string{FgRGB(4, 0, 4), FgRGB(2, 0, 2)},
"sol": [2]string{Fg(39), Fg(27)},
"sql": [2]string{Fg(193), Fg(148)},
"svelte": [2]string{Fg(208), Fg(196)},
"swift": [2]string{Fg(223), Fg(215)},
"vim": [2]string{Fg(34), Fg(28)},
"vue": [2]string{Fg(43), Fg(29)},
"xml": [2]string{Fg(87), Fg(73)},
"compiled": [2]string{FgGray(8), FgGray(5)},
"compress": [2]string{FgRGB(5, 0, 0), FgRGB(3, 0, 0)},
"document": [2]string{FgRGB(5, 0, 0), FgRGB(3, 0, 0)},
"media": [2]string{Fg(141), Fg(99)},
"_default": [2]string{FgGray(23), FgGray(12)},
}
// 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",
"json": "js",
"mjs": "js",
"ts": "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",
"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",
"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",
"zsh": "sh",
"plpgsql": "sql",
"plsql": "sql",
"psql": "sql",
"tsql": "sql",
"vimrc": "vim",
}
// SizeColor has the color mappings for ranges of file sizes
SizeColor = map[string]string{
"B": Fg(27),
"K": Fg(33),
"M": Fg(81),
"G": Fg(123),
"T": Fg(159),
}
// ConfigColor holds mappings for other various colors
ConfigColor = map[string]map[string]string{
"dir": map[string]string{
"name": Bold + BgRGB(0, 0, 2) + FgGray(23),
"ext": FgRGB(2, 2, 5),
},
".dir": map[string]string{
"name": Bold + BgRGB(0, 0, 1) + FgGray(23),
"ext": FgRGB(2, 2, 5),
},
"folderHeader": map[string]string{
"arrow": FgRGB(3, 2, 0),
"main": BgGray(2) + FgRGB(3, 2, 0),
"slash": FgGray(5),
"lastFolder": Bold + FgRGB(5, 5, 0),
"error": BgRGB(5, 0, 0) + FgRGB(5, 5, 0),
},
"link": map[string]string{
"name": Bold + FgRGB(0, 5, 0),
"nameDir": Bold + BgRGB(0, 0, 2) + FgRGB(0, 5, 5),
"arrow": FgRGB(1, 0, 1),
"path": FgRGB(4, 0, 4),
"broken": FgRGB(5, 0, 0),
},
"device": map[string]string{
"name": Bold + BgGray(3) + Fg(220),
},
"socket": map[string]string{
"name": Bold + Bg(53) + Fg(15),
},
"pipe": map[string]string{
"name": Bold + Bg(94) + Fg(15),
},
"stats": map[string]string{
"text": BgGray(2) + FgGray(15),
"number": Fg(24),
"ms": Fg(39),
},
}
// PermsColor holds color mappings for users and groups
PermsColor = map[string]map[string]string{
"user": map[string]string{
"root": FgRGB(5, 0, 2),
"daemon": FgRGB(4, 2, 1),
"_self": FgRGB(0, 4, 0),
"_default": FgRGB(0, 3, 3),
},
"group": map[string]string{
"wheel": FgRGB(3, 0, 0),
"staff": FgRGB(0, 2, 0),
"admin": FgRGB(2, 2, 0),
"_default": FgRGB(2, 0, 2),
},
"other": map[string]string{
"_default": BgGray(2) + FgGray(15),
},
}
)