fix: % not properly escaped in other components too.

Now following components escapes results of external souces
- buffers
- tabs
- hostname
- branch
- filetype

fixes #579

lua/lualine/components/branch/init.lua

@@ -1,8 +1,11 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
 local M = require('lualine.component'):extend()
-local require = require('lualine_require').require
+local modules = require('lualine_require').lazy_require {
-local git_branch = require('lualine.components.branch.git_branch')
+  git_branch = 'lualine.components.branch.git_branch',
+  highlight = 'lualine.highlight',
+  utils = 'lualine.utils.utils',
+}
 
 -- Initilizer
 M.init = function(self, options)
@@ -10,11 +13,13 @@ M.init = function(self, options)
   if not self.options.icon then
     self.options.icon = '' -- e0a0
   end
-  git_branch.init()
+  modules.git_branch.init()
 end
 
 M.update_status = function(_, is_focused)
-  return git_branch.get_branch((not is_focused and vim.api.nvim_get_current_buf()))
+  local buf = (not is_focused and vim.api.nvim_get_current_buf())
+  local branch = modules.git_branch.get_branch(buf)
+  return modules.utils.stl_escape(branch)
 end
 
 return M

lua/lualine/components/buffers/buffer.lua

@@ -1,6 +1,10 @@
-local highlight = require('lualine.highlight')
 local Buffer = require('lualine.utils.class'):extend()
 
+local modules = require('lualine_require').lazy_require {
+  highlight = 'lualine.highlight',
+  utils = 'lualine.utils.utils',
+}
+
 ---intialize a new buffer from opts
 ---@param opts table
 function Buffer:init(opts)
@@ -13,7 +17,7 @@ end
 
 ---setup icons, modified status for buffer
 function Buffer:get_props()
-  self.file = vim.api.nvim_buf_get_name(self.bufnr)
+  self.file = modules.utils.stl_escape(vim.api.nvim_buf_get_name(self.bufnr))
   self.buftype = vim.api.nvim_buf_get_option(self.bufnr, 'buftype')
   self.filetype = vim.api.nvim_buf_get_option(self.bufnr, 'filetype')
   local modified = self.options.show_modified_status and vim.api.nvim_buf_get_option(self.bufnr, 'modified')
@@ -69,7 +73,8 @@ function Buffer:render()
   -- setup for mouse clicks
   local line = string.format('%%%s@LualineSwitchBuffer@%s%%T', self.bufnr, name)
   -- apply highlight
-  line = highlight.component_format_highlight(self.highlights[(self.current and 'active' or 'inactive')]) .. line
+  line = modules.highlight.component_format_highlight(self.highlights[(self.current and 'active' or 'inactive')])
+    .. line
 
   -- apply separators
   if self.options.self.section < 'lualine_x' and not self.first then

lua/lualine/components/filetype.lua

@@ -18,7 +18,8 @@ function M:init(options)
 end
 
 function M.update_status()
-  return vim.bo.filetype or ''
+  local ft = vim.bo.filetype or ''
+  return modules.utils.stl_escape(ft)
 end
 
 function M:apply_icon()

lua/lualine/components/hostname.lua

@@ -1,7 +1,11 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
+local modules = require('lualine_require').lazy_require {
+  utils = 'lualine.utils.utils',
+}
+
 local function hostname()
-  return vim.loop.os_gethostname()
+  return modules.utils.stl_escape(vim.loop.os_gethostname())
 end
 
 return hostname

lua/lualine/components/tabs/tab.lua

@@ -1,6 +1,10 @@
-local highlight = require('lualine.highlight')
 local Tab = require('lualine.utils.class'):extend()
 
+local modules = require('lualine_require').lazy_require {
+  highlight = 'lualine.highlight',
+  utils = 'lualine.utils.utils',
+}
+
 ---intialize a new tab from opts
 ---@param opts table
 function Tab:init(opts)
@@ -17,12 +21,12 @@ end
 function Tab:label()
   local custom_tabname = vim.t[self.tabId].tabname
   if custom_tabname and custom_tabname ~= '' then
-    return custom_tabname
+    return modules.utils.stl_escape(custom_tabname)
   end
   local buflist = vim.fn.tabpagebuflist(self.tabnr)
   local winnr = vim.fn.tabpagewinnr(self.tabnr)
   local bufnr = buflist[winnr]
-  local file = vim.api.nvim_buf_get_name(bufnr)
+  local file = modules.utils.stl_escape(vim.api.nvim_buf_get_name(bufnr))
   local buftype = vim.fn.getbufvar(bufnr, '&buftype')
   if buftype == 'help' then
     return 'help:' .. vim.fn.fnamemodify(file, ':t:r')
@@ -62,7 +66,8 @@ function Tab:render()
   -- setup for mouse clicks
   local line = string.format('%%%s@LualineSwitchTab@%s%%T', self.tabnr, name)
   -- apply highlight
-  line = highlight.component_format_highlight(self.highlights[(self.current and 'active' or 'inactive')]) .. line
+  line = modules.highlight.component_format_highlight(self.highlights[(self.current and 'active' or 'inactive')])
+    .. line
 
   -- apply separators
   if self.options.self.section < 'lualine_x' and not self.first then

lua/lualine/utils/utils.lua

@@ -174,6 +174,9 @@ end
 ---@param str string
 ---@return string
 function M.stl_escape(str)
+  if type(str) ~= 'string' then
+    return str
+  end
   return str:gsub('%%', '%%%%')
 end