[FEATURE] Add support for sass variables

Import support

import using use and import keyword

multiple imports in single line

multiple imports in multiple lines ( using commas )

recursive imports

watch imports for changes and automatically rehighlight buffer

buffer variables

recursive variables support

multiple variables in single line

parse imported files only when they are changed

Loosely based on https://github.com/norcalli/nvim-colorizer.lua/pull/22/files

1 files changed, 31 insertions, 11 deletions

diff --git a/lua/colorizer.lua b/lua/colorizer.lua
index 4af765c..90b964a 100644
--- a/lua/colorizer.lua
+++ b/lua/colorizer.lua
@@ -108,7 +108,9 @@ local BUFFER_LOCAL = {}
 --      mode = "background", -- Set the display mode.
 --      -- Available methods are false / true / "normal" / "lsp" / "both"
 --      -- True is same as normal
---      tailwind = false -- Enable tailwind colors
+--      tailwind = false, -- Enable tailwind colors
+--      -- parsers can contain values used in |user_default_options|
+--      sass = { enable = false, parsers = { css }, }, -- Enable sass colors
 --      virtualtext = "■",
 --  }
 --</pre>
@@ -124,6 +126,7 @@ local BUFFER_LOCAL = {}
 --@field css_fn boolean
 --@field mode string
 --@field tailwind boolean|string
+--@field sass table
 --@field virtualtext string
 local USER_DEFAULT_OPTIONS = {
   RGB = true,
@@ -137,6 +140,7 @@ local USER_DEFAULT_OPTIONS = {
   css_fn = false,
   mode = "background",
   tailwind = false,
+  sass = { enable = false, parsers = { css = true } },
   virtualtext = "■",
 }
 
@@ -198,10 +202,13 @@ local function detach_from_buffer(buf, ns)
 
   clear_namespace(buf, ns or DEFAULT_NAMESPACE, 0, -1)
   if BUFFER_LOCAL[buf] then
-    if BUFFER_LOCAL[buf].__tailwind_ns then
-      clear_namespace(buf, BUFFER_LOCAL[buf].__tailwind_ns, 0, -1)
-      if type(BUFFER_LOCAL[buf].__tailwind_detach) == "function" then
-        BUFFER_LOCAL[buf].__tailwind_detach()
+    for _, namespace in pairs(BUFFER_LOCAL[buf].__detach.ns) do
+      clear_namespace(buf, namespace, 0, -1)
+    end
+
+    for _, f in pairs(BUFFER_LOCAL[buf].__detach.functions) do
+      if type(f) == "function" then
+        f(buf)
       end
     end
 
@@ -210,6 +217,7 @@ local function detach_from_buffer(buf, ns)
     end
 
     BUFFER_LOCAL[buf].__autocmds = nil
+    BUFFER_LOCAL[buf].__detach = nil
   end
   -- because now the buffer is not visible, so delete its information
   BUFFER_OPTIONS[buf] = nil
@@ -253,9 +261,13 @@ local function attach_to_buffer(buf, options, typ)
   BUFFER_OPTIONS[buf] = options
 
   BUFFER_LOCAL[buf] = BUFFER_LOCAL[buf] or {}
-  local tailwind_ns, tailwind_detach = rehighlight_buffer(buf, options)
-  BUFFER_LOCAL[buf].__tailwind_ns = BUFFER_LOCAL[buf].__tailwind_ns or tailwind_ns
-  BUFFER_LOCAL[buf].__tailwind_detach = BUFFER_LOCAL[buf].__tailwind_detach or tailwind_detach
+  local highlighted, returns = rehighlight_buffer(buf, options)
+
+  if not highlighted then
+    return
+  end
+
+  BUFFER_LOCAL[buf].__detach = BUFFER_LOCAL[buf].__detach or returns.detach
 
   BUFFER_LOCAL[buf].__init = true
 
@@ -266,13 +278,20 @@ local function attach_to_buffer(buf, options, typ)
   local autocmds = {}
   local au_group_id = AUGROUP_ID
 
-  autocmds[#autocmds + 1] = autocmd({ "TextChanged", "TextChangedI", "TextChangedP" }, {
+  local text_changed_au = { "TextChanged", "TextChangedI", "TextChangedP" }
+  -- only enable InsertLeave in sass, rest don't require it
+  if options.sass and options.sass.enable then
+    table.insert(text_changed_au, "InsertLeave")
+  end
+
+  autocmds[#autocmds + 1] = autocmd(text_changed_au, {
     group = au_group_id,
     buffer = buf,
     callback = function(args)
       -- only reload if it was not disabled using detach_from_buffer
       if BUFFER_OPTIONS[buf] then
-        if args.event == "TextChanged" then
+        BUFFER_LOCAL[buf].__event = args.event
+        if args.event == "TextChanged" or args.event == "InsertLeave" then
           rehighlight_buffer(buf, options, BUFFER_LOCAL[buf])
         else
           local pos = vim.fn.getpos "."
@@ -287,9 +306,10 @@ local function attach_to_buffer(buf, options, typ)
   autocmds[#autocmds + 1] = autocmd({ "WinScrolled" }, {
     group = au_group_id,
     buffer = buf,
-    callback = function()
+    callback = function(args)
       -- only reload if it was not disabled using detach_from_buffer
       if BUFFER_OPTIONS[buf] then
+        BUFFER_LOCAL[buf].__event = args.event
         rehighlight_buffer(buf, options, BUFFER_LOCAL[buf])
       end
     end,