feat: add support for inline virtual text (#85)

doc/colorizer.txt

@@ -245,6 +245,7 @@ user_default_options                            *colorizer.user_default_options*
 	  -- parsers can contain values used in |user_default_options|
 	  sass = { enable = false, parsers = { css }, }, -- Enable sass colors
 	  virtualtext = "■",
+	  virtualtext_inline = false, -- Show the virtualtext inline with the color
 	  -- update color values even if buffer is not focused
 	  always_update = false
       }

lua/colorizer.lua

@@ -139,6 +139,7 @@ local CURRENT_BUF = 0
 --      -- parsers can contain values used in |user_default_options|
 --      sass = { enable = false, parsers = { css }, }, -- Enable sass colors
 --      virtualtext = "■",
+--      virtualtext_inline = false, -- Show the virtualtext inline with the color
 --      -- update color values even if buffer is not focused
 --      always_update = false
 --  }
@@ -157,6 +158,7 @@ local CURRENT_BUF = 0
 --@field tailwind boolean|string
 --@field sass table
 --@field virtualtext string
+--@field virtualtext_inline? boolean
 --@field always_update boolean
 local USER_DEFAULT_OPTIONS = {
   RGB = true,
@@ -172,6 +174,7 @@ local USER_DEFAULT_OPTIONS = {
   tailwind = false,
   sass = { enable = false, parsers = { css = true } },
   virtualtext = "■",
+  virtualtext_inline = false,
   always_update = false,
 }
 

lua/colorizer/buffer.lua

@@ -109,11 +109,23 @@ function buffer.add_highlight(buf, ns, line_start, line_end, data, options)
     for linenr, hls in pairs(data) do
       for _, hl in ipairs(hls) do
         local hlname = create_highlight(hl.rgb_hex, mode)
-        buf_set_virtual_text(buf, ns, linenr, hl.range[2], {
-          end_col = hl.range[2],
+
+        local start_col = hl.range[2]
+        local opts = {
           virt_text = { { options.virtualtext or "■", hlname } },
           hl_mode = "combine",
-        })
+          priority = 0,
+        }
+
+        if options.virtualtext_inline then
+          start_col = hl.range[1]
+          opts.virt_text_pos = "inline"
+          opts.virt_text = { { (options.virtualtext or "■") .. " ", hlname } }
+        end
+
+        opts.end_col = start_col
+
+        buf_set_virtual_text(buf, ns, linenr, start_col, opts)
       end
     end
   end