diff --git a/lua/spacevim/api/vim.lua b/lua/spacevim/api/vim.lua
index 041a50683..e7db41315 100644
--- a/lua/spacevim/api/vim.lua
+++ b/lua/spacevim/api/vim.lua
@@ -1,20 +1,35 @@
 local M = {}
 
-
 function M.getchar(...)
-    local status, ret = pcall(vim.fn.getchar, ...)
-    if not status then
-        ret = 3
-    end
-    if type(ret) == 'number' then return vim.fn.nr2char(ret) else return ret end
+  local status, ret = pcall(vim.fn.getchar, ...)
+  if not status then
+    ret = 3
+  end
+  if type(ret) == 'number' then
+    return vim.fn.nr2char(ret)
+  else
+    return ret
+  end
 end
 
 function M.getchar2nr(...)
-    local status, ret = pcall(vim.fn.getchar, ...)
-    if not status then
-        ret = 3
-    end
-    if type(ret) == 'number' then return ret else return vim.fn.char2nr(ret) end
+  local status, ret = pcall(vim.fn.getchar, ...)
+  if not status then
+    ret = 3
+  end
+  if type(ret) == 'number' then
+    return ret
+  else
+    return vim.fn.char2nr(ret)
+  end
+end
+
+function M.empty(expr)
+  return vim.fn.empty(expr) == 1
+end
+
+function M.executable(bin)
+  return vim.fn.executable(bin) == 1
 end
 
 return M