9 "github.com/zyedidia/tcell"
12 // Micro's default style
13 var DefStyle tcell.Style = tcell.StyleDefault
15 // The current colorscheme
16 var Colorscheme map[string]tcell.Style
18 // GetColor takes in a syntax group and returns the colorscheme's style for that group
19 func GetColor(color string) tcell.Style {
24 groups := strings.Split(color, ".")
27 for i, g := range groups {
32 if style, ok := Colorscheme[curGroup]; ok {
36 } else if style, ok := Colorscheme[color]; ok {
39 st = StringToStyle(color)
45 // ColorschemeExists checks if a given colorscheme exists
46 func ColorschemeExists(colorschemeName string) bool {
47 return FindRuntimeFile(RTColorscheme, colorschemeName) != nil
50 // InitColorscheme picks and initializes the colorscheme when micro starts
51 func InitColorscheme() error {
52 Colorscheme = make(map[string]tcell.Style)
53 DefStyle = tcell.StyleDefault
55 return LoadDefaultColorscheme()
58 // LoadDefaultColorscheme loads the default colorscheme from $(ConfigDir)/colorschemes
59 func LoadDefaultColorscheme() error {
60 return LoadColorscheme(GlobalSettings["colorscheme"].(string))
63 // LoadColorscheme loads the given colorscheme from a directory
64 func LoadColorscheme(colorschemeName string) error {
65 file := FindRuntimeFile(RTColorscheme, colorschemeName)
67 return errors.New(colorschemeName + " is not a valid colorscheme")
69 if data, err := file.Data(); err != nil {
70 return errors.New("Error loading colorscheme: " + err.Error())
72 Colorscheme, err = ParseColorscheme(string(data))
80 // ParseColorscheme parses the text definition for a colorscheme and returns the corresponding object
81 // Colorschemes are made up of color-link statements linking a color group to a list of colors
82 // For example, color-link keyword (blue,red) makes all keywords have a blue foreground and
84 func ParseColorscheme(text string) (map[string]tcell.Style, error) {
86 parser := regexp.MustCompile(`color-link\s+(\S*)\s+"(.*)"`)
88 lines := strings.Split(text, "\n")
90 c := make(map[string]tcell.Style)
92 for _, line := range lines {
93 if strings.TrimSpace(line) == "" ||
94 strings.TrimSpace(line)[0] == '#' {
99 matches := parser.FindSubmatch([]byte(line))
100 if len(matches) == 3 {
101 link := string(matches[1])
102 colors := string(matches[2])
104 style := StringToStyle(colors)
107 if link == "default" {
111 err = errors.New("Color-link statement is not valid: " + line)
118 // StringToStyle returns a style from a string
119 // The strings must be in the format "extra foregroundcolor,backgroundcolor"
120 // The 'extra' can be bold, reverse, or underline
121 func StringToStyle(str string) tcell.Style {
123 spaceSplit := strings.Split(str, " ")
125 if len(spaceSplit) > 1 {
126 split = strings.Split(spaceSplit[1], ",")
128 split = strings.Split(str, ",")
131 fg, bg = split[0], split[1]
135 fg = strings.TrimSpace(fg)
136 bg = strings.TrimSpace(bg)
138 var fgColor, bgColor tcell.Color
140 fgColor, _, _ = DefStyle.Decompose()
142 fgColor = StringToColor(fg)
145 _, bgColor, _ = DefStyle.Decompose()
147 bgColor = StringToColor(bg)
150 style := DefStyle.Foreground(fgColor).Background(bgColor)
151 if strings.Contains(str, "bold") {
152 style = style.Bold(true)
154 if strings.Contains(str, "reverse") {
155 style = style.Reverse(true)
157 if strings.Contains(str, "underline") {
158 style = style.Underline(true)
163 // StringToColor returns a tcell color from a string representation of a color
164 // We accept either bright... or light... to mean the brighter version of a color
165 func StringToColor(str string) tcell.Color {
168 return tcell.ColorBlack
170 return tcell.ColorMaroon
172 return tcell.ColorGreen
174 return tcell.ColorOlive
176 return tcell.ColorNavy
178 return tcell.ColorPurple
180 return tcell.ColorTeal
182 return tcell.ColorSilver
183 case "brightblack", "lightblack":
184 return tcell.ColorGray
185 case "brightred", "lightred":
186 return tcell.ColorRed
187 case "brightgreen", "lightgreen":
188 return tcell.ColorLime
189 case "brightyellow", "lightyellow":
190 return tcell.ColorYellow
191 case "brightblue", "lightblue":
192 return tcell.ColorBlue
193 case "brightmagenta", "lightmagenta":
194 return tcell.ColorFuchsia
195 case "brightcyan", "lightcyan":
196 return tcell.ColorAqua
197 case "brightwhite", "lightwhite":
198 return tcell.ColorWhite
200 return tcell.ColorDefault
202 // Check if this is a 256 color
203 if num, err := strconv.Atoi(str); err == nil {
204 return GetColor256(num)
206 // Probably a truecolor hex value
207 return tcell.GetColor(str)
211 // GetColor256 returns the tcell color for a number between 0 and 255
212 func GetColor256(color int) tcell.Color {
213 colors := []tcell.Color{tcell.ColorBlack, tcell.ColorMaroon, tcell.ColorGreen,
214 tcell.ColorOlive, tcell.ColorNavy, tcell.ColorPurple,
215 tcell.ColorTeal, tcell.ColorSilver, tcell.ColorGray,
216 tcell.ColorRed, tcell.ColorLime, tcell.ColorYellow,
217 tcell.ColorBlue, tcell.ColorFuchsia, tcell.ColorAqua,
218 tcell.ColorWhite, tcell.Color16, tcell.Color17, tcell.Color18, tcell.Color19, tcell.Color20,
219 tcell.Color21, tcell.Color22, tcell.Color23, tcell.Color24, tcell.Color25, tcell.Color26, tcell.Color27, tcell.Color28,
220 tcell.Color29, tcell.Color30, tcell.Color31, tcell.Color32, tcell.Color33, tcell.Color34, tcell.Color35, tcell.Color36,
221 tcell.Color37, tcell.Color38, tcell.Color39, tcell.Color40, tcell.Color41, tcell.Color42, tcell.Color43, tcell.Color44,
222 tcell.Color45, tcell.Color46, tcell.Color47, tcell.Color48, tcell.Color49, tcell.Color50, tcell.Color51, tcell.Color52,
223 tcell.Color53, tcell.Color54, tcell.Color55, tcell.Color56, tcell.Color57, tcell.Color58, tcell.Color59, tcell.Color60,
224 tcell.Color61, tcell.Color62, tcell.Color63, tcell.Color64, tcell.Color65, tcell.Color66, tcell.Color67, tcell.Color68,
225 tcell.Color69, tcell.Color70, tcell.Color71, tcell.Color72, tcell.Color73, tcell.Color74, tcell.Color75, tcell.Color76,
226 tcell.Color77, tcell.Color78, tcell.Color79, tcell.Color80, tcell.Color81, tcell.Color82, tcell.Color83, tcell.Color84,
227 tcell.Color85, tcell.Color86, tcell.Color87, tcell.Color88, tcell.Color89, tcell.Color90, tcell.Color91, tcell.Color92,
228 tcell.Color93, tcell.Color94, tcell.Color95, tcell.Color96, tcell.Color97, tcell.Color98, tcell.Color99, tcell.Color100,
229 tcell.Color101, tcell.Color102, tcell.Color103, tcell.Color104, tcell.Color105, tcell.Color106, tcell.Color107, tcell.Color108,
230 tcell.Color109, tcell.Color110, tcell.Color111, tcell.Color112, tcell.Color113, tcell.Color114, tcell.Color115, tcell.Color116,
231 tcell.Color117, tcell.Color118, tcell.Color119, tcell.Color120, tcell.Color121, tcell.Color122, tcell.Color123, tcell.Color124,
232 tcell.Color125, tcell.Color126, tcell.Color127, tcell.Color128, tcell.Color129, tcell.Color130, tcell.Color131, tcell.Color132,
233 tcell.Color133, tcell.Color134, tcell.Color135, tcell.Color136, tcell.Color137, tcell.Color138, tcell.Color139, tcell.Color140,
234 tcell.Color141, tcell.Color142, tcell.Color143, tcell.Color144, tcell.Color145, tcell.Color146, tcell.Color147, tcell.Color148,
235 tcell.Color149, tcell.Color150, tcell.Color151, tcell.Color152, tcell.Color153, tcell.Color154, tcell.Color155, tcell.Color156,
236 tcell.Color157, tcell.Color158, tcell.Color159, tcell.Color160, tcell.Color161, tcell.Color162, tcell.Color163, tcell.Color164,
237 tcell.Color165, tcell.Color166, tcell.Color167, tcell.Color168, tcell.Color169, tcell.Color170, tcell.Color171, tcell.Color172,
238 tcell.Color173, tcell.Color174, tcell.Color175, tcell.Color176, tcell.Color177, tcell.Color178, tcell.Color179, tcell.Color180,
239 tcell.Color181, tcell.Color182, tcell.Color183, tcell.Color184, tcell.Color185, tcell.Color186, tcell.Color187, tcell.Color188,
240 tcell.Color189, tcell.Color190, tcell.Color191, tcell.Color192, tcell.Color193, tcell.Color194, tcell.Color195, tcell.Color196,
241 tcell.Color197, tcell.Color198, tcell.Color199, tcell.Color200, tcell.Color201, tcell.Color202, tcell.Color203, tcell.Color204,
242 tcell.Color205, tcell.Color206, tcell.Color207, tcell.Color208, tcell.Color209, tcell.Color210, tcell.Color211, tcell.Color212,
243 tcell.Color213, tcell.Color214, tcell.Color215, tcell.Color216, tcell.Color217, tcell.Color218, tcell.Color219, tcell.Color220,
244 tcell.Color221, tcell.Color222, tcell.Color223, tcell.Color224, tcell.Color225, tcell.Color226, tcell.Color227, tcell.Color228,
245 tcell.Color229, tcell.Color230, tcell.Color231, tcell.Color232, tcell.Color233, tcell.Color234, tcell.Color235, tcell.Color236,
246 tcell.Color237, tcell.Color238, tcell.Color239, tcell.Color240, tcell.Color241, tcell.Color242, tcell.Color243, tcell.Color244,
247 tcell.Color245, tcell.Color246, tcell.Color247, tcell.Color248, tcell.Color249, tcell.Color250, tcell.Color251, tcell.Color252,
248 tcell.Color253, tcell.Color254, tcell.Color255,
251 if color >= 0 && color < len(colors) {
255 return tcell.ColorDefault