From 849d6acc6626b5d6340ebf70e8f1310057d80096 Mon Sep 17 00:00:00 2001
From: shadmansaleh <13149513+shadmansaleh@users.noreply.github.com>
Date: Fri, 20 Aug 2021 08:15:57 +0600
Subject: [PATCH] feat: Allow (neo)vim's statusline items to be used as
 component directly

---
 README.md                    | 8 +++++++-
 doc/lualine.txt              | 5 +++++
 lua/lualine/utils/loader.lua | 5 +++++
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 9e45fa6..cddb2c8 100644
--- a/README.md
+++ b/README.md
@@ -207,6 +207,12 @@ sections = {lualine_a = {hello}}
 sections = {lualine_a = {'FugitiveHead'}}
 ```
 
+#### Vim's statusline items as lualine component
+
+```lua
+sections = {lualine_c = {'%=', '%t%m', '%3p'}}
+```
+
 ##### Vim variables as lualine component
 Variables from `g:`, `v:`, `t:`, `w:`, `b:`, `o`, `go:`, `vo:`, `to:`, `wo:`, `bo:` scopes can be used.
 
@@ -222,7 +228,7 @@ You can use any valid lua expression as a component including
   * global variables
   * require statements
 ```lua
-sections = {lualine_c = {"os.data('%a')", 'data', require'lsp-status'.status}}
+sections = {lualine_c = {"os.data('%a')", 'data', "require'lsp-status'.status()"}}
 ```
 `data` is a global variable in this example.
 
diff --git a/doc/lualine.txt b/doc/lualine.txt
index 20c780a..b624ffc 100644
--- a/doc/lualine.txt
+++ b/doc/lualine.txt
@@ -149,6 +149,11 @@ Vim functions as lualine component~
 >
     sections = {lualine_a = {'FugitiveHead'}}
 <
+Vim's statusline items as lualine component~
+>
+    sections = {lualine_c = {'%=', '%t%m', '%3p'}}
+<
+
 Vim variables as lualine component~
 
 Variables from `g:`, `v:`, `t:`, `w:`, `b:`, `o`, `go:`, `vo:`, `to:`, `wo:`, `bo:` scopes can be used.
diff --git a/lua/lualine/utils/loader.lua b/lua/lualine/utils/loader.lua
index c5adb51..8ef0dd0 100644
--- a/lua/lualine/utils/loader.lua
+++ b/lua/lualine/utils/loader.lua
@@ -70,6 +70,11 @@ local function component_loader(component)
     if ok then
       component.component_name = component[1]
       loaded_component = loaded_component:new(component)
+    elseif string.char(component[1]:byte(1)) == '%' then
+      local stl_expr = component[1] -- Vim's %p %l statusline elements
+      component[1] = function() return stl_expr end
+      loaded_component =
+        lualine_load({'lua', 'lualine', 'components', 'special', 'function_component'}, true):new(component)
     elseif component[1]:find('[gvtwb]?o?:') == 1 then
       loaded_component =
         lualine_load({'lua', 'lualine', 'components', 'special', 'vim_var_component'}, true):new(component)