A Reverse range in character class error when previewing files in a folder with specific name

[staticssleever668]

Description

When I open files with some specific characters in it's parent directory name, an error is shown and preview window is empty.

Seems to be a duplicate of closed #1584.

I've also stumbled upon this problem in the past with a different plugin: airblade/vim-rooter#122.

---

I thought I would fix this myself, but the problem seems to go deeper as the path seems to get expanded for a reason.

A work-around:

diff --git a/lua/telescope/from_entry.lua b/lua/telescope/from_entry.lua
index 486b57c..596b21e 100644
--- a/lua/telescope/from_entry.lua
+++ b/lua/telescope/from_entry.lua
@@ -30,7 +30,7 @@ function from_entry.path(entry, validate, escape)
     -- TODO(conni2461): we are not going to return the expanded path because
     --                  this would lead to cache misses in the perviewer.
     --                  Requires overall refactoring in previewer interface
-    local expanded = vim.fn.expand(path)
+    local expanded = path
     if (vim.fn.filereadable(expanded) + vim.fn.isdirectory(expanded)) == 0 then
       return
     end

Neovim version

NVIM v0.8.0
Build type: Release
LuaJIT 2.1.0-beta3
Compiled by builduser

Features: +acl +iconv +tui
See ":help feature-compile"

   system vimrc file: "$VIM/sysinit.vim"
  fall-back for $VIM: "/usr/share/nvim"

Run :checkhealth for more info

Operating system and version

Arch Linux

Telescope version / branch / rev

7a4ffef

checkhealth telescope

telescope: require("telescope.health").check()
========================================================================
## Checking for required plugins
  - OK: plenary installed.
  - WARNING: nvim-treesitter not found. 

## Checking external dependencies
  - OK: rg: found ripgrep 13.0.0
  - WARNING: fd: not found. Install [sharkdp/fd](https://github.com/sharkdp/fd) for extended capabilities

## ===== Installed extensions =====

## Telescope Extension: `fzf`
  - INFO: No healthcheck provided

Steps to reproduce

1. Run mkdir -p "telescope_test/[u-a]" && cd telescope_test && touch "[u-a]/test_file" to create an example of erroring out directory structure.
2. Start Neovim and run :Telescope find_files.
3. See the error appear when the test_file file gets selected.

Expected behavior

No response

Actual behavior

E5108: Error executing lua Vim:E944: Reverse range in character class
stack traceback:
        [C]: in function 'expand'
        ...packer/start/telescope.nvim/lua/telescope/from_entry.lua:33: in function 'path'
        ...scope.nvim/lua/telescope/previewers/buffer_previewer.lua:428: in function 'define_preview'
        ...scope.nvim/lua/telescope/previewers/buffer_previewer.lua:388: in function 'preview'
        ...ck/packer/start/telescope.nvim/lua/telescope/pickers.lua:1075: in function 'refresh_previewer'
        ...ck/packer/start/telescope.nvim/lua/telescope/pickers.lua:1028: in function 'set_selection'
        ...ck/packer/start/telescope.nvim/lua/telescope/pickers.lua:792: in function 'move_selection'
        ...acker/start/telescope.nvim/lua/telescope/actions/set.lua:39: in function 'run_replace_or_original'
        ...packer/start/telescope.nvim/lua/telescope/actions/mt.lua:65: in function 'shift_selection'
        ...cker/start/telescope.nvim/lua/telescope/actions/init.lua:87: in function 'run_replace_or_original'
        ...packer/start/telescope.nvim/lua/telescope/actions/mt.lua:65: in function 'key_func'
        ...k/packer/start/telescope.nvim/lua/telescope/mappings.lua:352: in function 'execute_keymap'
        [string ":lua"]:1: in main chunk

Minimal config

vim.cmd [[set runtimepath=$VIMRUNTIME]]
vim.cmd [[set packpath=/tmp/nvim/site]]
local package_root = '/tmp/nvim/site/pack'
local install_path = package_root .. '/packer/start/packer.nvim'
local function load_plugins()
  require('packer').startup {
    {
      'wbthomason/packer.nvim',
      {
        'nvim-telescope/telescope.nvim',
        requires = {
          'nvim-lua/plenary.nvim',
          { 'nvim-telescope/telescope-fzf-native.nvim', run = 'make' },
        },
      },
      -- ADD PLUGINS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE
    },
    config = {
      package_root = package_root,
      compile_path = install_path .. '/plugin/packer_compiled.lua',
      display = { non_interactive = true },
    },
  }
end
_G.load_config = function()
  require('telescope').setup()
  require('telescope').load_extension('fzf')
  -- ADD INIT.LUA SETTINGS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE
end
if vim.fn.isdirectory(install_path) == 0 then
  print("Installing Telescope and dependencies.")
  vim.fn.system { 'git', 'clone', '--depth=1', 'https://github.com/wbthomason/packer.nvim', install_path }
end
load_plugins()
require('packer').sync()
vim.cmd [[autocmd User PackerComplete ++once echo "Ready!" | lua load_config()]]

[darzok0914]

hi, I just stumbled into the same error, I was wondering if anyone had any update on this?