fix: % in filename not escaped properly.

fixes #579

lua/lualine/components/filename.lua

@@ -2,6 +2,10 @@
 -- MIT license, see LICENSE for more details.
 local M = require('lualine.component'):extend()
 
+local modules = require('lualine_require').lazy_require {
+  utils = 'lualine.utils.utils',
+}
+
 local default_options = {
   symbols = { modified = '[+]', readonly = '[-]', unnamed = '[No Name]' },
   file_status = true,
@@ -44,6 +48,8 @@ M.update_status = function(self)
     data = vim.fn.expand('%:t')
   end
 
+  data = modules.utils.stl_escape(data)
+
   if data == '' then
     data = self.options.symbols.unnamed
   end

lua/lualine/utils/utils.lua

@@ -170,4 +170,11 @@ function M.retry_call_wrap(fn, times)
   end
 end
 
+---Escape % in str so it doesn't get picked as stl item.
+---@param str string
+---@return string
+function M.stl_escape(str)
+  return str:gsub('%%', '%%%%')
+end
+
 return M