Fix https://github.com/NvChad/nvim-colorizer.lua/issues/12 | Add support for tailwind colors

Three methods

normal: Use the hardcoded colors

lsp: Use lsp to fetch colors

both: Use the hardcoded colors and use lsp too if available

although this is hardcoding, but working with what we got, has all the
colors tailwind provides, atleast the prebuilt ones

for new defined colors, have to enable the lsp method

Generated using https://github.com/tailwindlabs/tailwindcss/raw/master/src/public/colors.js
and https://github.com/tailwindlabs/tailwindcss/raw/master/src/corePlugins.js

use a different namespace than default for tailwind lsp method

only try to use lsp method if attached

Misc changes

  export the user_default_settings to doc

  clear name space after the lines are processed for a smooth transition

  cleanup some code

1 files changed, 20 insertions, 3 deletions

diff --git a/lua/colorizer/color_utils.lua b/lua/colorizer/color_utils.lua
index 433cea7..b90c108 100644
--- a/lua/colorizer/color_utils.lua
+++ b/lua/colorizer/color_utils.lua
@@ -60,13 +60,15 @@ local COLOR_MAP
 local COLOR_TRIE
 local COLOR_NAME_MINLEN, COLOR_NAME_MAXLEN
 local COLOR_NAME_SETTINGS = { lowercase = true, strip_digits = false }
+local TAILWIND_ENABLED = false
 --- Grab all the colour values from `vim.api.nvim_get_color_map` and create a lookup table.
 -- COLOR_MAP is used to store the colour values
 ---@param line string: Line to parse
 ---@param i number: Index of line from where to start parsing
-local function color_name_parser(line, i)
+---@param opts table: Currently contains whether tailwind is enabled or not
+local function color_name_parser(line, i, opts)
   --- Setup the COLOR_MAP and COLOR_TRIE
-  if not COLOR_TRIE then
+  if not COLOR_TRIE or opts.tailwind ~= TAILWIND_ENABLED then
     COLOR_MAP = {}
     COLOR_TRIE = Trie()
     for k, v in pairs(api.nvim_get_color_map()) do
@@ -83,8 +85,23 @@ local function color_name_parser(line, i)
         end
       end
     end
+    if opts and opts.tailwind then
+      if opts.tailwind == "normal" or opts.tailwind == "both" then
+        local tailwind = require "colorizer.tailwind_colors"
+        -- setup tailwind colors
+        for k, v in pairs(tailwind.colors) do
+          for _, pre in ipairs(tailwind.prefixes) do
+            local name = pre .. "-" .. k
+            COLOR_NAME_MINLEN = COLOR_NAME_MINLEN and min(#name, COLOR_NAME_MINLEN) or #name
+            COLOR_NAME_MAXLEN = COLOR_NAME_MAXLEN and max(#name, COLOR_NAME_MAXLEN) or #name
+            COLOR_MAP[name] = v
+            COLOR_TRIE:insert(name)
+          end
+        end
+      end
+    end
+    TAILWIND_ENABLED = opts.tailwind
   end
-
   if #line < i + COLOR_NAME_MINLEN - 1 then
     return
   end