feat(filename): add unnamed option (#496)

* feat(filename): add unnamed option

* docs(filename): add documentation for symbols

README.md

@@ -505,8 +505,13 @@ sections = {
       'filename',
       file_status = true,   -- displays file status (readonly status, modified status)
       path = 0,             -- 0 = just filename, 1 = relative path, 2 = absolute path
-      shorting_target = 40 -- Shortens path to leave 40 space in the window
+      shorting_target = 40, -- Shortens path to leave 40 space in the window
                             -- for other components. Terrible name any suggestions?
+      symbols = {
+        modified = '[+]',      -- when the file was modified
+        readonly = '[-]',      -- if the file is not modifiable or readonly
+        unnamed = '[No Name]', -- default display name for unnamed buffers
+      }
     }
   }
 }

doc/lualine.txt

@@ -532,8 +532,13 @@ Component specific options             These are options that are available on
           'filename',
           file_status = true,   -- displays file status (readonly status, modified status)
           path = 0,             -- 0 = just filename, 1 = relative path, 2 = absolute path
-          shorting_target = 40 -- Shortens path to leave 40 space in the window
+          shorting_target = 40, -- Shortens path to leave 40 space in the window
                                 -- for other components. Terrible name any suggestions?
+          symbols = {
+            modified = '[+]',      -- when the file was modified
+            readonly = '[-]',      -- if the file is not modifiable or readonly
+            unnamed = '[No Name]', -- default display name for unnamed buffers
+          }
         }
       }
     }

lua/lualine/components/filename.lua

@@ -3,7 +3,7 @@
 local M = require('lualine.component'):extend()
 
 local default_options = {
-  symbols = { modified = '[+]', readonly = '[-]' },
+  symbols = { modified = '[+]', readonly = '[-]', unnamed = '[No Name]' },
   file_status = true,
   path = 0,
   shorting_target = 40,
@@ -45,7 +45,7 @@ M.update_status = function(self)
   end
 
   if data == '' then
-    data = '[No Name]'
+    data = self.options.symbols.unnamed
   end
 
   if self.options.shorting_target ~= 0 then