Add support for 256 colors in mini-hipatterns

[gaardhus]

Contributing guidelines

• [X] I have read CONTRIBUTING.md
• [X] I have read CODE_OF_CONDUCT.md

Module(s)

mini-hipatterns

Description

Thanks for some great modules!

I'm currently editing a config file which references colors based on their xterm number, ie:

color attachment  color117 color235
color bold        color179 color235
color error       color203 color235

Would it be possible to add color highlighting for those like for hex and rgb?

[echasnovski]

Thanks for the suggestion!

As long as it is possible to match target text with Lua patterns and compute hex color based on it, it is possible.

That said, this particular highlighting seems to be too much to be included directly in 'mini.hipatterns'. You can certainly create own highlighter. Here are some relevant sources to help with this:

• Dedicated example similar to this task.
• compute_hex_color_group() which makes it easier to create highlight groups based on the hex color alone.
• Example from LazyVim which implements some not trivial highlighters. See "Full spec" tab.

Closing as not planned.

[gaardhus]

Thanks! I made it work with LazyVim by adding the following config:

-- Issue with guides for setting custom highlighters:
-- https://github.com/echasnovski/mini.nvim/issues/957#issuecomment-2160999162

-- xterm 256 color map from:
-- https://www.ditig.com/publications/256-colors-cheat-sheet
local color256_map = {
  color0 = "#000000",
  color1 = "#800000",
  color2 = "#008000",
  color3 = "#808000",
  color4 = "#000080",
  color5 = "#800080",
  color6 = "#008080",
  color7 = "#c0c0c0",
  color8 = "#808080",
  color9 = "#ff0000",
  color10 = "#00ff00",
  color11 = "#ffff00",
  color12 = "#0000ff",
  color13 = "#ff00ff",
  color14 = "#00ffff",
  color15 = "#ffffff",
  color16 = "#000000",
  color17 = "#00005f",
  color18 = "#000087",
  color19 = "#0000af",
  color20 = "#0000d7",
  color21 = "#0000ff",
  color22 = "#005f00",
  color23 = "#005f5f",
  color24 = "#005f87",
  color25 = "#005faf",
  color26 = "#005fd7",
  color27 = "#005fff",
  color28 = "#008700",
  color29 = "#00875f",
  color30 = "#008787",
  color31 = "#0087af",
  color32 = "#0087d7",
  color33 = "#0087ff",
  color34 = "#00af00",
  color35 = "#00af5f",
  color36 = "#00af87",
  color37 = "#00afaf",
  color38 = "#00afd7",
  color39 = "#00afff",
  color40 = "#00d700",
  color41 = "#00d75f",
  color42 = "#00d787",
  color43 = "#00d7af",
  color44 = "#00d7d7",
  color45 = "#00d7ff",
  color46 = "#00ff00",
  color47 = "#00ff5f",
  color48 = "#00ff87",
  color49 = "#00ffaf",
  color50 = "#00ffd7",
  color51 = "#00ffff",
  color52 = "#5f0000",
  color53 = "#5f005f",
  color54 = "#5f0087",
  color55 = "#5f00af",
  color56 = "#5f00d7",
  color57 = "#5f00ff",
  color58 = "#5f5f00",
  color59 = "#5f5f5f",
  color60 = "#5f5f87",
  color61 = "#5f5faf",
  color62 = "#5f5fd7",
  color63 = "#5f5fff",
  color64 = "#5f8700",
  color65 = "#5f875f",
  color66 = "#5f8787",
  color67 = "#5f87af",
  color68 = "#5f87d7",
  color69 = "#5f87ff",
  color70 = "#5faf00",
  color71 = "#5faf5f",
  color72 = "#5faf87",
  color73 = "#5fafaf",
  color74 = "#5fafd7",
  color75 = "#5fafff",
  color76 = "#5fd700",
  color77 = "#5fd75f",
  color78 = "#5fd787",
  color79 = "#5fd7af",
  color80 = "#5fd7d7",
  color81 = "#5fd7ff",
  color82 = "#5fff00",
  color83 = "#5fff5f",
  color84 = "#5fff87",
  color85 = "#5fffaf",
  color86 = "#5fffd7",
  color87 = "#5fffff",
  color88 = "#870000",
  color89 = "#87005f",
  color90 = "#870087",
  color91 = "#8700af",
  color92 = "#8700d7",
  color93 = "#8700ff",
  color94 = "#875f00",
  color95 = "#875f5f",
  color96 = "#875f87",
  color97 = "#875faf",
  color98 = "#875fd7",
  color99 = "#875fff",
  color100 = "#878699",
  color101 = "#87875f",
  color102 = "#878787",
  color103 = "#8787af",
  color104 = "#8787d7",
  color105 = "#8787ff",
  color106 = "#87af00",
  color107 = "#87af5f",
  color108 = "#87af87",
  color109 = "#87afaf",
  color110 = "#87afd7",
  color111 = "#87afff",
  color112 = "#87d700",
  color113 = "#87d75f",
  color114 = "#87d787",
  color115 = "#87d7af",
  color116 = "#87d7d7",
  color117 = "#87d7ff",
  color118 = "#87ff00",
  color119 = "#87ff5f",
  color120 = "#87ff87",
  color121 = "#87ffaf",
  color122 = "#87ffd7",
  color123 = "#87ffff",
  color124 = "#af0000",
  color125 = "#af005f",
  color126 = "#af0087",
  color127 = "#af00af",
  color128 = "#af00d7",
  color129 = "#af00ff",
  color130 = "#af5f00",
  color131 = "#af5f5f",
  color132 = "#af5f87",
  color133 = "#af5faf",
  color134 = "#af5fd7",
  color135 = "#af5fff",
  color136 = "#af8700",
  color137 = "#af875f",
  color138 = "#af8787",
  color139 = "#af87af",
  color140 = "#af87d7",
  color141 = "#af87ff",
  color142 = "#afaf00",
  color143 = "#afaf5f",
  color144 = "#afaf87",
  color145 = "#afafaf",
  color146 = "#afafd7",
  color147 = "#afafff",
  color148 = "#afd700",
  color149 = "#afd75f",
  color150 = "#afd787",
  color151 = "#afd7af",
  color152 = "#afd7d7",
  color153 = "#afd7ff",
  color154 = "#afff00",
  color155 = "#afff5f",
  color156 = "#afff87",
  color157 = "#afffaf",
  color158 = "#afffd7",
  color159 = "#afffff",
  color160 = "#d70000",
  color161 = "#d7005f",
  color162 = "#d70087",
  color163 = "#d700af",
  color164 = "#d700d7",
  color165 = "#d700ff",
  color166 = "#d75f00",
  color167 = "#d75f5f",
  color168 = "#d75f87",
  color169 = "#d75faf",
  color170 = "#d75fd7",
  color171 = "#d75fff",
  color172 = "#d78700",
  color173 = "#d7875f",
  color174 = "#d78787",
  color175 = "#d787af",
  color176 = "#d787d7",
  color177 = "#d787ff",
  color178 = "#d7af00",
  color179 = "#d7af5f",
  color180 = "#d7af87",
  color181 = "#d7afaf",
  color182 = "#d7afd7",
  color183 = "#d7afff",
  color184 = "#d7d700",
  color185 = "#d7d75f",
  color186 = "#d7d787",
  color187 = "#d7d7af",
  color188 = "#d7d7d7",
  color189 = "#d7d7ff",
  color190 = "#d7ff00",
  color191 = "#d7ff5f",
  color192 = "#d7ff87",
  color193 = "#d7ffaf",
  color194 = "#d7ffd7",
  color195 = "#d7ffff",
  color196 = "#ff0000",
  color197 = "#ff005f",
  color198 = "#ff0087",
  color199 = "#ff00af",
  color200 = "#ff00d7",
  color201 = "#ff00ff",
  color202 = "#ff5f00",
  color203 = "#ff5f5f",
  color204 = "#ff5f87",
  color205 = "#ff5faf",
  color206 = "#ff5fd7",
  color207 = "#ff5fff",
  color208 = "#ff8700",
  color209 = "#ff875f",
  color210 = "#ff8787",
  color211 = "#ff87af",
  color212 = "#ff87d7",
  color213 = "#ff87ff",
  color214 = "#ffaf00",
  color215 = "#ffaf5f",
  color216 = "#ffaf87",
  color217 = "#ffafaf",
  color218 = "#ffafd7",
  color219 = "#ffafff",
  color220 = "#ffd700",
  color221 = "#ffd75f",
  color222 = "#ffd787",
  color223 = "#ffd7af",
  color224 = "#ffd7d7",
  color225 = "#ffd7ff",
  color226 = "#ffff00",
  color227 = "#ffff5f",
  color228 = "#ffff87",
  color229 = "#ffffaf",
  color230 = "#ffffd7",
  color231 = "#ffffff",
  color232 = "#080808",
  color233 = "#121212",
  color234 = "#1c1c1c",
  color235 = "#262626",
  color236 = "#303030",
  color237 = "#3a3a3a",
  color238 = "#444444",
  color239 = "#4e4e4e",
  color240 = "#585858",
  color241 = "#626262",
  color242 = "#6c6c6c",
  color243 = "#767676",
  color244 = "#808080",
  color245 = "#8a8a8a",
  color246 = "#949494",
  color247 = "#9e9e9e",
  color248 = "#a8a8a8",
  color249 = "#b2b2b2",
  color250 = "#bcbcbc",
  color251 = "#c6c6c6",
  color252 = "#d0d0d0",
  color253 = "#dadada",
  color254 = "#e4e4e4",
  color255 = "#eeeeee",
}

local word_color_group = function(_, match)
  local hex = color256_map[match]
  if hex == nil then
    return nil
  end
  return MiniHipatterns.compute_hex_color_group(hex, "bg")
end

return {
  "echasnovski/mini.hipatterns",
  opts = {
    highlighters = {
      word_color = { pattern = "%S+", group = word_color_group },
    },
  },
}