From 276ba5d19ebc275a3a4accc1a335cb8f3dbc480e Mon Sep 17 00:00:00 2001
From: shadmansaleh <13149513+shadmansaleh@users.noreply.github.com>
Date: Sat, 28 Aug 2021 00:32:44 +0600
Subject: [PATCH] feat: Support indexing dictionaries in var components

---
 lua/lualine/components/special/vim_var_component.lua | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lua/lualine/components/special/vim_var_component.lua b/lua/lualine/components/special/vim_var_component.lua
index 53e3dbd..b318f17 100644
--- a/lua/lualine/components/special/vim_var_component.lua
+++ b/lua/lualine/components/special/vim_var_component.lua
@@ -9,7 +9,14 @@ VarComponent.update_status = function(self)
   local var_name = component:sub(#scope + 2, #component)
   -- Displays nothing when veriable aren't present
   if not (scope and var_name) then return '' end
-  local return_val = vim[scope][var_name]
+  -- Support accessing keys within dictionary
+  -- https://github.com/shadmansaleh/lualine.nvim/issues/25#issuecomment-907374548
+  local name_chunks = vim.split(var_name, '%.')
+  local return_val = vim[scope][name_chunks[1]]
+  for i=2,#name_chunks do
+    if return_val == nil then break end
+    return_val = return_val[name_chunks[i]]
+  end
   if return_val == nil then return '' end
   local ok
   ok, return_val = pcall(tostring, return_val)