add stylua conf

update setup doc

.stylua.toml

@@ -0,0 +1,6 @@
+# config for stylua, ref: https://github.com/JohnnyMorganz/StyLua
+line_endings = "Unix"
+indent_type = "Spaces"
+indent_width = 2
+quote_style = "AutoPreferDouble"
+no_call_parentheses = true

README.md

@@ -88,16 +88,16 @@ and how to set up on different platforms (Linux, macOS, and Windows).
 
 For more UI demos, check [here](https://github.com/jdhao/nvim-config/issues/15).
 
-## Start screen with alpha-nvim
+## Start screen with dashboard-nvim
 
 <p align="center">
-<img src="https://user-images.githubusercontent.com/16662357/139459989-0537ded4-c119-4749-99bf-b551ca1ba118.jpg" width="800">
+<img src="https://user-images.githubusercontent.com/16662357/183256752-fb23b215-a6b8-4646-beed-9999f52d53f1.png" width="800">
 </p>
 
-## fuzzy finding using LeaderF
+## File fuzzy finding using LeaderF
 
 <p align="center">
-<img src="https://user-images.githubusercontent.com/16662357/139462025-7bce98c5-d2d5-413f-9659-20545865cdca.gif" width="800">
+<img src="https://user-images.githubusercontent.com/16662357/183257017-2d9d7605-3c4b-4e1d-8955-30998f9b6f28.gif" width="800">
 </p>
 
 ## Code autocompletion with nvim-cmp
@@ -142,43 +142,46 @@ Go to a string starting with `se`
 
 Some of the shortcuts I use frequently are listed here. In the following shortcuts, `<leader>` represents ASCII character `,`.
 
-| Shortcut          | Mode          | platform        | Description                                                      |
+| Shortcut          | Mode          | platform        | Description                                                              |
-|-------------------|---------------|-----------------|------------------------------------------------------------------|
+|-------------------|---------------|-----------------|--------------------------------------------------------------------------|
-| `<leader>ff`      | Normal        | Linux/macOS/Win | Fuzzy file searching in a floating window                        |
+| `<leader>ff`      | Normal        | Linux/macOS/Win | Fuzzy file searching in a floating window                                |
-| `<leader>fh`      | Normal        | Linux/macOS/Win | Fuzzy help file grepping in a floating window                    |
+| `<leader>fh`      | Normal        | Linux/macOS/Win | Fuzzy help file grepping in a floating window                            |
-| `<leader>fg`      | Normal        | Linux/macOS/Win | Fuzzy project-wide grepping in a floating window                 |
+| `<leader>fg`      | Normal        | Linux/macOS/Win | Fuzzy project-wide grepping in a floating window                         |
-| `<leader>ft`      | Normal        | Linux/macOS/Win | Fuzzy buffer tag searching in a floating window                  |
+| `<leader>ft`      | Normal        | Linux/macOS/Win | Fuzzy buffer tag searching in a floating window                          |
-| `<leader>fb`      | Normal        | Linux/macOS/Win | Fuzzy buffer switching in a floating window                      |
+| `<leader>fb`      | Normal        | Linux/macOS/Win | Fuzzy buffer switching in a floating window                              |
-| `<leader><Space>` | Normal        | Linux/macOS/Win | Remove trailing white spaces                                     |
+| `<leader><Space>` | Normal        | Linux/macOS/Win | Remove trailing white spaces                                             |
-| `<leader>v`       | Normal        | Linux/macOS/Win | Reselect last pasted text                                        |
+| `<leader>v`       | Normal        | Linux/macOS/Win | Reselect last pasted text                                                |
-| `<leader>ev`      | Normal        | Linux/macOS/Win | Edit Nvim config in a new tabpage                                |
+| `<leader>ev`      | Normal        | Linux/macOS/Win | Edit Nvim config in a new tabpage                                        |
-| `<leader>sv`      | Normal        | Linux/macOS/Win | Reload Nvim config                                               |
+| `<leader>sv`      | Normal        | Linux/macOS/Win | Reload Nvim config                                                       |
-| `<leader>st`      | Normal        | Linux/macOS/Win | Show highlight group for cursor text                             |
+| `<leader>st`      | Normal        | Linux/macOS/Win | Show highlight group for cursor text                                     |
-| `<leader>q`       | Normal        | Linux/macOS/Win | Quit current window                                              |
+| `<leader>q`       | Normal        | Linux/macOS/Win | Quit current window                                                      |
-| `<leader>Q`       | Normal        | Linux/macOS/Win | Quit all window and close Nvim                                   |
+| `<leader>Q`       | Normal        | Linux/macOS/Win | Quit all window and close Nvim                                           |
-| `<leader>w`       | Normal        | Linux/macOS/Win | Save current buffer content                                      |
+| `<leader>w`       | Normal        | Linux/macOS/Win | Save current buffer content                                              |
-| `<leader>y`       | Normal        | Linux/macOS/Win | Copy the content of entire buffer to default register            |
+| `<leader>y`       | Normal        | Linux/macOS/Win | Copy the content of entire buffer to default register                    |
-| `<leader>cl`      | Normal        | Linux/macOS/Win | Toggle cursor column                                             |
+| `<leader>cl`      | Normal        | Linux/macOS/Win | Toggle cursor column                                                     |
-| `<leader>cd`      | Normal        | Linux/macOS/Win | Change current working directory to to the dir of current buffer |
+| `<leader>cd`      | Normal        | Linux/macOS/Win | Change current working directory to to the dir of current buffer         |
-| `<space>t`        | Normal        | Linux/macOS/Win | Toggle tag window (show project tags in the right window)        |
+| `<space>t`        | Normal        | Linux/macOS/Win | Toggle tag window (show project tags in the right window)                |
-| `<leader>gs`      | Normal        | Linux/macOS/Win | Show Git status result                                           |
+| `<leader>gs`      | Normal        | Linux/macOS/Win | Show Git status result                                                   |
-| `<leader>gw`      | Normal        | Linux/macOS/Win | Run Git add for current file                                     |
+| `<leader>gw`      | Normal        | Linux/macOS/Win | Run Git add for current file                                             |
-| `<leader>gd`      | Normal        | Linux/macOS/Win | Run git diff for current file                                    |
+| `<leader>gd`      | Normal        | Linux/macOS/Win | Run git diff for current file                                            |
-| `<leader>gc`      | Normal        | Linux/macOS/Win | Run git commit                                                   |
+| `<leader>gc`      | Normal        | Linux/macOS/Win | Run git commit                                                           |
-| `<leader>gpl`     | Normal        | Linux/macOS/Win | Run git pull                                                     |
+| `<leader>gpl`     | Normal        | Linux/macOS/Win | Run git pull                                                             |
-| `<leader>gpu`     | Normal        | Linux/macOS/Win | Run git push                                                     |
+| `<leader>gpu`     | Normal        | Linux/macOS/Win | Run git push                                                             |
-| `<F9>`            | Normal        | Linux/macOS/Win | Run current source file (for Python, C++)                        |
+| `<F9>`            | Normal        | Linux/macOS/Win | Compile&run current source file (for C++, LaTeX, Lua, Python)            |
-| `<F11>`           | Normal        | Linux/macOS/Win | Toggle spell checking                                            |
+| `<F11>`           | Normal        | Linux/macOS/Win | Toggle spell checking                                                    |
-| `<F12>`           | Normal        | Linux/macOS/Win | Toggle paste mode                                                |
+| `<F12>`           | Normal        | Linux/macOS/Win | Toggle paste mode                                                        |
-| `\x`              | Normal        | Linux/macOS/Win | Close location or quickfix window                                |
+| `\x`              | Normal        | Linux/macOS/Win | Close location or quickfix window                                        |
-| `\d`              | Normal        | Linux/macOS/Win | Close current buffer and go to previous buffer                   |
+| `\d`              | Normal        | Linux/macOS/Win | Close current buffer and go to previous buffer                           |
-| `{count}gb`       | Normal        | Linux/macOS/Win | Go to buffer {count}  or next buffer in the buffer list.         |
+| `{count}gb`       | Normal        | Linux/macOS/Win | Go to buffer `{count}` or next buffer in the buffer list.                |
-| `Alt-m`           | Normal        | macOS/Win       | Markdown previewing in system browser                            |
+| `{operator}iB`    | Normal        | Linux/macOS/Win | Operate in the whole buffer, `{operator}` can be `v`, `y`, `c`, `d` etc. |
-| `Alt-Shift-m`     | Normal        | macOS/Win       | Stopping Markdown previewing in system browser                   |
+| `Alt-k`           | Normal        | Linux/macOS/Win | Move current line or selected lines up                                   |
-| `ob`              | Normal/Visual | macOS/Win       | Open link under cursor or search visual selection                |
+| `Alt-j`           | Normal        | Linux/macOS/Win | Move current line or selected lines down                                 |
-| `ctrl-u`          | Insert        | Linux/macOS/Win | Turn word under cursor to upper case                             |
+| `Alt-m`           | Normal        | macOS/Win       | Markdown previewing in system browser                                    |
-| `ctrl-t`          | Insert        | Linux/macOS/Win | Turn word under cursor to title case                             |
+| `Alt-Shift-m`     | Normal        | macOS/Win       | Stopping Markdown previewing in system browser                           |
-| `jk`              | Insert        | Linux/macOS/Win | Return to Normal mode without lagging                            |
+| `ob`              | Normal/Visual | macOS/Win       | Open link under cursor or search visual selection                        |
+| `ctrl-u`          | Insert        | Linux/macOS/Win | Turn word under cursor to upper case                                     |
+| `ctrl-t`          | Insert        | Linux/macOS/Win | Turn word under cursor to title case                                     |
+| `jk`              | Insert        | Linux/macOS/Win | Return to Normal mode without lagging                                    |
 
 # Custom commands
 

after/ftplugin/javascript.vim

@@ -0,0 +1,8 @@
+" Disable inserting comment leader after hitting o or O or <Enter>
+set formatoptions-=o
+set formatoptions-=r
+
+set tabstop=2       " number of visual spaces per TAB
+set softtabstop=2   " number of spaces in tab when editing
+set shiftwidth=2    " number of spaces to use for autoindent
+set expandtab       " expand tab to spaces so that tabs are spaces

autoload/utils.vim

@@ -131,9 +131,11 @@ function! utils#Get_titlestr() abort
   if g:is_linux
       let l:title_str = hostname() . '  '
   endif
-  let l:title_str = l:title_str . expand('%:p:~') . '  '
+
-  if &buflisted
+  let l:buf_path = expand('%:p:~')
-    let l:title_str = l:title_str . strftime('%Y-%m-%d %H:%M',getftime(expand('%')))
+  let l:title_str = l:title_str . l:buf_path . '  '
+  if &buflisted && l:buf_path != ""
+    let l:title_str = l:title_str . strftime('%Y-%m-%d %H:%M:%S%z', getftime(expand('%')))
   endif
 
   return l:title_str

core/globals.vim

@@ -37,7 +37,9 @@ let g:mapleader = ','
 let g:vimsyn_embed = 'l'
 
 " Use English as main language
-language en_US.utf-8
+if !g:is_mac
+  language en_US.utf-8
+endif
 
 " use filetype.lua instead of filetype.vim
 let g:do_filetype_lua = 1

core/mappings.vim

@@ -101,10 +101,6 @@ nnoremap / /\v
 " Search in selected region
 xnoremap / :<C-U>call feedkeys('/\%>'.(line("'<")-1).'l\%<'.(line("'>")+1)."l")<CR>
 
-" Find and replace (like Sublime Text 3)
-nnoremap <C-H> :%s/
-xnoremap <C-H> :s/
-
 " Change current working directory locally and print cwd after that,
 " see https://vim.fandom.com/wiki/Set_working_directory_to_the_current_file
 nnoremap <silent> <leader>cd :<C-U>lcd %:p:h<CR>:pwd<CR>
@@ -171,6 +167,7 @@ onoremap <silent> iB :<C-U>call text_obj#Buffer()<CR>
 
 " Do not move my cursor when joining lines.
 nnoremap J mzJ`z
+nnoremap gJ mzgJ`z
 
 " Break inserted text into smaller undo units.
 for ch in [',', '.', '!', '?', ';', ':']

core/options.vim

@@ -112,6 +112,9 @@ set shortmess+=c
 " choice, IMHO.
 set shortmess+=S
 
+" Disable showing intro message (:intro)
+set shortmess+=I
+
 " Completion behaviour
 " set completeopt+=noinsert  " Auto select the first completion entry
 set completeopt+=menuone  " Show menu even if there is only one item
@@ -120,7 +123,7 @@ set completeopt-=preview  " Disable the preview window
 set pumheight=10  " Maximum number of items to show in popup menu
 set pumblend=10  " pseudo transparency for completion menu
 
-set winblend=5  " pseudo transparency for floating window
+set winblend=0  " pseudo transparency for floating window
 
 " Insert mode key word completion setting
 set complete+=kspell complete-=w complete-=b complete-=u complete-=t

core/plugins.vim

@@ -425,3 +425,6 @@ function! s:wilder_init() abort
     echohl Error |echomsg "Wilder.nvim missing: run :PackerSync to fix."|echohl None
   endtry
 endfunction
+
+""""""""""""""""""""""""""""""vim-auto-save settings""""""""""""""""""""""""""""""
+let g:auto_save = 1  " enable AutoSave on Vim startup

core/themes.vim

@@ -54,6 +54,13 @@ function! s:theme_setup_dict.kanagawa() dict abort
   colorscheme kanagawa
 endfunction
 
+function! s:theme_setup_dict.catppuccin() dict abort
+  let g:catppuccin_flavour = "frappe" " latte, frappe, macchiato, mocha
+
+  lua require("catppuccin").setup()
+  colorscheme catppuccin
+endfunction
+
 " Theme to directory name mapping, because theme repo name is not necessarily
 " the same as the theme name itself.
 let s:theme2dir = {
@@ -67,6 +74,7 @@ let s:theme2dir = {
       \ 'everforest' :'everforest',
       \ 'nightfox': 'nightfox.nvim',
       \ 'kanagawa': 'kanagawa.nvim',
+      \ 'catppuccin': 'catppuccin'
       \ }
 
 let s:theme = utils#RandElement(keys(s:theme2dir))
@@ -85,7 +93,7 @@ if !s:status
 endif
 
 execute 'call ' . s:colorscheme_func
-if g:logging_level == 'info'
+if g:logging_level == 'debug'
   let s:msg1 = "Colorscheme: " . s:theme
   call v:lua.vim.notify(s:msg1, 'info', {'title': 'nvim-config'})
 endif

docs/README.md

@@ -2,9 +2,44 @@ This doc summarizes how to install and use this configuration in detail.
 
 # Pre-requisite
 
+## Terminal emulators
+
+Which [terminal emulator](https://en.wikipedia.org/wiki/Terminal_emulator) we choose to use greatly affects the appearance and features of Nvim.
+Since Nvim supports true colors, terminals that support true colors are preferred.
+For a list of terminals that support true colors, see [here](https://github.com/termstandard/colors).
+
+For macOS, we can use [kitty](https://sw.kovidgoyal.net/kitty/), [iterm2](https://www.iterm2.com/), [wezterm](https://wezfurlong.org/wezterm/) or [Alacritty](https://github.com/jwilm/alacritty).
+
+If you ssh to Linux server on Windows, I recommend [wsltty](https://github.com/mintty/wsltty) and [Cygwin](https://www.cygwin.com/),
+both of them use [mintty](https://github.com/mintty/mintty) as the terminal emulator.
+For the latest version of Windows 10, you can also try [Windows Terminal](https://github.com/microsoft/terminal).
+
+## Patched Fonts
+
+Since statusline or file explorer plugins often use Unicode symbols not available in normal font,
+we need to install a patched font from the [nerd-fonts](https://github.com/ryanoasis/nerd-fonts) project.
+
+# Automatic installation
+
+## Automatic Installation for Linux
+
+To set up a workable Nvim environment on Linux,
+I use [a bash script](nvim_setup_linux.sh) to automatically install necessary dependencies, Nvim itself and configs.
+
+Note that the variable `PYTHON_INSTALLED`, `SYSTEM_PYTHON` and `ADD_TO_SYSTEM_PATH` in the script
+should be set properly based on your environment.
+
+## Automatic installation for Windows
+
+Run script [nvim_setup_windows.ps1](nvim_setup_windows.ps1) under PowerShell.
+
+# Manual install
+
 There are a few dependencies if we want to use Nvim for efficient editing and development work.
 
-## Python
+## Dependencies
+
+### Python
 
 A lot of Nvim plugins are mainly written in Python, so we must install Python 3.
 The easiest way to install is via [Anaconda](https://docs.anaconda.com/anaconda/install/index.html) or [Miniconda](https://docs.conda.io/en/latest/miniconda.html).
@@ -12,7 +47,7 @@ The easiest way to install is via [Anaconda](https://docs.anaconda.com/anaconda/
 After installation, make sure that you can run `python --version`,
 and that the output should be Python 3.x.
 
-## Pynvim
+### Pynvim
 
 Nvim relies on [pynvim](https://github.com/neovim/pynvim) to communicate with plugins that utilize its Python binding.
 Pynvim is required by plugins such as [wilder.nvim](https://github.com/gelguy/wilder.nvim).
@@ -21,7 +56,7 @@ Pynvim is required by plugins such as [wilder.nvim](https://github.com/gelguy/wi
 pip install -U pynvim
 ```
 
-## python-lsp-server
+### python-lsp-server
 
 [python-lsp-server (pylsp)](https://github.com/python-lsp/python-lsp-server) is a Python [Language Server](https://microsoft.github.io/language-server-protocol/) for completion, linting, go to definition, etc.
 
@@ -33,7 +68,7 @@ Note the executable for pylsp is also named `pylsp`. You need to set its PATH co
 If you use pip from Anaconda, the executable path may be something like `$CONDA_ROOT/bin/pylsp`.
 For native python, the path for pylsp may be like `$HOME/.local/bin/pylsp`
 
-## Node
+### Node
 
 We need to install node.js from [here](https://nodejs.org/en/download/).
 For Linux, you can use the following script:
@@ -60,7 +95,7 @@ source ~/.bash_profile
 # source ~/.zshrc
 ```
 
-## vim-language-server
+### vim-language-server
 
 [vim-language-server](https://github.com/iamcco/vim-language-server) provides completion for vim script. We can install vim-language-server globally:
 
@@ -70,7 +105,7 @@ npm install -g vim-language-server
 
 vim-language-server is installed in the same directory as the node executable.
 
-## Git
+### Git
 
 Git is required by plugin manager [packer.nvim](https://github.com/wbthomason/packer.nvim) and other git-related plugins.
 
@@ -79,7 +114,7 @@ The version of Git on the Linux system may be too old so that plugins may break.
 Check [here](https://jdhao.github.io/2021/03/27/upgrade_git_on_linux/) on how to install and set up the latest version of Git.
 For Windows, install [Git for Windows](https://git-scm.com/download/win) and make sure you can run `git` from command line.
 
-## ctags
+### ctags
 
 In order to use tags related plugins such as [vista.vim](https://github.com/liuchengxu/vista.vim), we need to install a ctags distribution.
 Universal-ctags is preferred.
@@ -102,7 +137,7 @@ choco install universal-ctags
 
 Set its PATH properly and make sure you can run `ctags` from command line.
 
-## Ripgrep
+### Ripgrep
 
 [Ripgrep](https://github.com/BurntSushi/ripgrep), aka, `rg`, is a fast grepping tool available for both Linux, Windows and macOS.
 It is used by several searching plugins.
@@ -112,7 +147,7 @@ For Linux, we can download the [binary release](https://github.com/BurntSushi/ri
 
 Set its PATH properly and make sure you can run `rg` from command line.
 
-## Linters
+### Linters
 
 A linter is a tool to check the source code for possible style and syntax issues.
 Based on the programming languages we use, we may need to install various linters.
@@ -122,35 +157,18 @@ Based on the programming languages we use, we may need to install various linter
 
 Set their PATH properly and make sure you can run `pylint`, `flake8` and `vint` from command line.
 
-## Terminal emulators
+## Install Nvim
-
-Which [terminal emulator](https://en.wikipedia.org/wiki/Terminal_emulator) we choose to use greatly affects the appearance and features of Nvim.
-Since Nvim supports true colors, terminals that support true colors are preferred.
-For a list of terminals that support true colors, see [here](https://github.com/termstandard/colors).
-
-For macOS, we can use [kitty](https://sw.kovidgoyal.net/kitty/), [iterm2](https://www.iterm2.com/), [wezterm](https://wezfurlong.org/wezterm/) or [Alacritty](https://github.com/jwilm/alacritty).
-
-If you ssh to Linux server on Windows, I recommend [wsltty](https://github.com/mintty/wsltty) and [Cygwin](https://www.cygwin.com/),
-both of them use [mintty](https://github.com/mintty/mintty) as the terminal emulator.
-For the latest version of Windows 10, you can also try [Windows Terminal](https://github.com/microsoft/terminal).
-
-## Patched Fonts
-
-Since statusline or file explorer plugins often use Unicode symbols not available in normal font,
-we need to install a patched font from the [nerd-fonts](https://github.com/ryanoasis/nerd-fonts) project.
-
-# Install Nvim
 
 There are various ways to install Nvim depending on your system.
 This config is only maintained for [the latest nvim stable release](https://github.com/neovim/neovim/releases/tag/stable).
 
-## Linux
+### Linux
 
 You can directly download the binary release from [here](https://github.com/neovim/neovim/releases/download/stable/nvim-linux64.tar.gz).
 You can also use the system package manager to install nvim,
 but that is not reliable since the latest version may not be available.
 
-## Windows
+### Windows
 
 You may download from [nvim release](https://github.com/neovim/neovim/releases/download/stable/nvim-win64.zip) from GitHub and manually extract it.
 
@@ -164,7 +182,7 @@ choco install neovim
 # scoop install neovim
 ```
 
-## macOS
+### macOS
 
 It is recommended to install neovim via [Homebrew](https://brew.sh/) on macOS. Simply run the following command:
 
@@ -175,9 +193,11 @@ brew install neovim
 After installing Nvim, we need to set the path to nvim correctly.
 **Make sure that you can run `nvim` from the command line after all these setups**.
 
-# Setting up Nvim
+## Setting up Nvim
 
-## Install plugin manager packer.nvim
+After installing nvim and all the dependencies, we will install plugin managers and set up this config.
+
+### Install plugin manager packer.nvim
 
 I use packer.nvim to manage my plugins. We need to install packer.nvim on our system first.
 
@@ -193,7 +213,7 @@ For macOS and Linux, run the following command:
 git clone --depth=1 https://github.com/wbthomason/packer.nvim ~/.local/share/nvim/site/pack/packer/opt/packer.nvim
 ```
 
-## How to install this configuration
+### How to install this configuration
 
 On Linux and macOS, the directory is `~/.config/nvim`.
 On Windows, the config directory is `$HOME/AppData/Local/nvim`[^1].
@@ -207,18 +227,4 @@ git clone --depth=1 https://github.com/jdhao/nvim-config.git .
 After that, when we first open nvim, run command `:PackerSync` to install all the plugins.
 Since I use quite a lot of plugins (more than 60), it may take some time to install all of them.
 
-# Automatic installation
-
-## Automatic Installation for Linux #
-
-To set up a workable Nvim environment on Linux,
-I use [a bash script](nvim_setup_linux.sh) to automatically install necessary dependencies, Nvim itself and configs.
-
-Note that the variable `PYTHON_INSTALLED`, `SYSTEM_PYTHON` and `ADD_TO_SYSTEM_PATH` in the script
-should be set properly based on your environment.
-
-## Automatic installation for Windows
-
-Run script [nvim_setup_windows.ps1](nvim_setup_windows.ps1) under PowerShell.
-
 [^1]: Use `echo %userprofile%` to see where your `$HOME` is.

lua/config/alpha-nvim.lua

@@ -1,32 +0,0 @@
-local alpha = require("alpha")
-local dashboard = require("alpha.themes.dashboard")
-
--- Set header
-dashboard.section.header.val = {
-    "                                                     ",
-    "  ███╗   ██╗███████╗ ██████╗ ██╗   ██╗██╗███╗   ███╗ ",
-    "  ████╗  ██║██╔════╝██╔═══██╗██║   ██║██║████╗ ████║ ",
-    "  ██╔██╗ ██║█████╗  ██║   ██║██║   ██║██║██╔████╔██║ ",
-    "  ██║╚██╗██║██╔══╝  ██║   ██║╚██╗ ██╔╝██║██║╚██╔╝██║ ",
-    "  ██║ ╚████║███████╗╚██████╔╝ ╚████╔╝ ██║██║ ╚═╝ ██║ ",
-    "  ╚═╝  ╚═══╝╚══════╝ ╚═════╝   ╚═══╝  ╚═╝╚═╝     ╚═╝ ",
-    "                                                     ",
-}
-
--- Set menu
-dashboard.section.buttons.val = {
-    dashboard.button( "Leader f f", "  > Find file", ":Leaderf file --popup<CR>"),
-    dashboard.button( "Leader f r", "  > Recent files"   , ":Leaderf mru --popup<CR>"),
-    dashboard.button( "Leader f g", "  > Project grep" , ":Leaderf rg --popup<CR>"),
-    dashboard.button( "u", "  > Update plugins" , ":PackerSync<CR>"),
-    dashboard.button( "e", "  > New file" , ":enew <CR>"),
-    dashboard.button( "q", "  > Quit NVIM", ":qa<CR>"),
-}
-
-local fortune = require("alpha.fortune")
-dashboard.section.footer.val = fortune()
-
-alpha.setup(dashboard.opts)
-
--- Send config to alpha
-alpha.setup(dashboard.opts)

lua/config/autosave.lua

@@ -1,15 +0,0 @@
-require("autosave").setup({
-	enabled = true,
-	execution_message = "Autosaved at " .. vim.fn.strftime("%H:%M:%S"),
-	events = { "InsertLeave", "TextChanged" },
-	conditions = {
-		exists = true,
-		filename_is_not = {"plugins.lua"},
-		filetype_is_not = {},
-		modifiable = true,
-	},
-	write_all_buffers = false,
-	on_off_commands = true,
-	clean_command_line_interval = 1000,
-	debounce_delay = 135,
-})

lua/config/dashboard-nvim.lua

@@ -0,0 +1,65 @@
+local dashboard = require("dashboard")
+
+dashboard.custom_header = {
+  "                                                       ",
+  "                                                       ",
+  "                                                       ",
+  " ███╗   ██╗ ███████╗ ██████╗  ██╗   ██╗ ██╗ ███╗   ███╗",
+  " ████╗  ██║ ██╔════╝██╔═══██╗ ██║   ██║ ██║ ████╗ ████║",
+  " ██╔██╗ ██║ █████╗  ██║   ██║ ██║   ██║ ██║ ██╔████╔██║",
+  " ██║╚██╗██║ ██╔══╝  ██║   ██║ ╚██╗ ██╔╝ ██║ ██║╚██╔╝██║",
+  " ██║ ╚████║ ███████╗╚██████╔╝  ╚████╔╝  ██║ ██║ ╚═╝ ██║",
+  " ╚═╝  ╚═══╝ ╚══════╝ ╚═════╝    ╚═══╝   ╚═╝ ╚═╝     ╚═╝",
+  "                                                       ",
+  "                                                       ",
+  "                                                       ",
+  "                                                       ",
+}
+
+dashboard.custom_center = {
+  {
+    icon = "  ",
+    desc = "Find  File                              ",
+    action = "Leaderf file --popup",
+    shortcut = "<Leader> f f",
+  },
+  {
+    icon = "  ",
+    desc = "Recently opened files                   ",
+    action = "Leaderf mru --popup",
+    shortcut = "<Leader> f r",
+  },
+  {
+    icon = "  ",
+    desc = "Project grep                            ",
+    action = "Leaderf rg --popup",
+    shortcut = "<Leader> f g",
+  },
+  {
+    icon = "  ",
+    desc = "Open Nvim config                        ",
+    action = "tabnew $MYVIMRC | tcd %:p:h",
+    shortcut = "<Leader> e v",
+  },
+  {
+    icon = "  ",
+    desc = "New file                                ",
+    action = "enew",
+    shortcut = "e           ",
+  },
+  {
+    icon = "  ",
+    desc = "Quit Nvim                               ",
+    -- desc = "Quit Nvim                               ",
+    action = "qa",
+    shortcut = "q           "
+  }
+}
+
+vim.cmd([[
+  augroup dashboard_enter
+    au!
+    autocmd FileType dashboard nnoremap <buffer> q :qa<CR>
+    autocmd FileType dashboard nnoremap <buffer> e :enew<CR>
+  augroup END
+]])

lua/config/nvim-cmp.lua

@@ -33,7 +33,6 @@ cmp.setup({
   sources = {
     { name = 'nvim_lsp' }, -- For nvim-lsp
     { name = 'ultisnips' }, -- For ultisnips user.
-    { name = 'nvim_lua' }, -- for nvim lua function
     { name = 'path' }, -- for path completion
     { name = 'buffer', keyword_length = 4 }, -- for buffer word completion
     { name = 'omni' },

lua/config/statusline.lua

@@ -21,20 +21,36 @@ local function ime_state()
 end
 
 local function trailing_space()
-  -- Get the positions of trailing whitespaces from plugin 'jdhao/whitespace.nvim'.
+  if not vim.o.modifiable then
-  local trailing_space_pos = vim.b.trailing_whitespace_pos
+    return ""
+  end
+
+  local line_num = nil
+
+  for i=1, fn.line('$') do
+    local linetext = fn.getline(i)
+    -- To prevent invalid escape error, we wrap the regex string with `[[]]`.
+    local idx = fn.match(linetext, [[\v\s+$]])
+
+    if idx ~= -1 then
+      line_num = i
+      break
+    end
+  end
 
   local msg = ""
-  if #trailing_space_pos > 0 then
+  if line_num ~= nil then
-    -- Note that lua index is 1-based, not zero based!!!
+    msg = string.format("[%d]trailing", line_num)
-    local line = trailing_space_pos[1][1]
-    msg = string.format("[%d]trailing", line)
   end
 
   return msg
 end
 
 local function mixed_indent()
+  if not vim.o.modifiable then
+    return ""
+  end
+
   local space_pat = [[\v^ +]]
   local tab_pat = [[\v^\t+]]
   local space_indent = fn.search(space_pat, 'nwc')

lua/plugins.lua

@@ -15,9 +15,11 @@ end
 
 -- Load packer.nvim
 vim.cmd("packadd packer.nvim")
-local util = require('packer.util')
 
-require("packer").startup({
+local packer = require("packer")
+local packer_util = require('packer.util')
+
+packer.startup({
   function(use)
     -- it is recommened to put impatient.nvim before any other plugins
     use {'lewis6991/impatient.nvim', config = [[require('impatient')]]}
@@ -30,7 +32,7 @@ require("packer").startup({
 
     -- nvim-cmp completion sources
     use {"hrsh7th/cmp-nvim-lsp", after = "nvim-cmp"}
-    use {"hrsh7th/cmp-nvim-lua", after = "nvim-cmp"}
+    -- use {"hrsh7th/cmp-nvim-lua", after = "nvim-cmp"}
     use {"hrsh7th/cmp-path", after = "nvim-cmp"}
     use {"hrsh7th/cmp-buffer", after = "nvim-cmp"}
     use { "hrsh7th/cmp-omni", after = "nvim-cmp" }
@@ -119,6 +121,7 @@ require("packer").startup({
     use({"sainnhe/everforest", opt = true})
     use({"EdenEast/nightfox.nvim", opt = true})
     use({"rebelot/kanagawa.nvim", opt = true})
+    use({"catppuccin/nvim", as = "catppuccin", opt = true})
 
     -- Show git change (change, delete, add) signs in vim sign column
     use({"mhinz/vim-signify", event = 'BufEnter'})
@@ -136,7 +139,7 @@ require("packer").startup({
     use({ "akinsho/bufferline.nvim", event = "VimEnter", config = [[require('config.bufferline')]] })
 
     -- fancy start screen
-    -- use { 'goolord/alpha-nvim', event = 'VimEnter', config = [[require('config.alpha-nvim')]] }
+    use { 'glepnir/dashboard-nvim', config = [[require('config.dashboard-nvim')]] }
 
     use({
       "lukas-reineke/indent-blankline.nvim",
@@ -183,13 +186,7 @@ require("packer").startup({
     -- use 'mg979/vim-visual-multi'
 
     -- Autosave files on certain events
-    use({
+    use({"907th/vim-auto-save", event = "InsertEnter"})
-      "Pocco81/AutoSave.nvim",
-      event = "VimEnter",
-      config = function()
-        vim.defer_fn(function() require('config.autosave') end, 1500)
-      end
-    })
 
     -- Show undo history visually
     use({"simnalamburt/vim-mundo", cmd = {"MundoToggle", "MundoShow"}})
@@ -356,10 +353,12 @@ require("packer").startup({
       requires = { 'kyazdani42/nvim-web-devicons' },
       config = [[require('config.nvim-tree')]]
     }
+
+    use { 'ii14/emmylua-nvim', ft = 'lua' }
   end,
   config = {
     max_jobs = 16,
-    compile_path = util.join_paths(fn.stdpath('data'), 'site', 'lua', 'packer_compiled.lua'),
+    compile_path = packer_util.join_paths(fn.stdpath('data'), 'site', 'lua', 'packer_compiled.lua'),
   },
 })
 

plugin/command.vim

@@ -8,3 +8,40 @@ call utils#Cabbrev('man', 'Man')
 
 " show current date and time in human readable format
 command! -nargs=? Datetime echo utils#iso_time(<q-args>)
+
+" Convert Markdown file to PDF
+command! ToPDF call s:md_to_pdf()
+
+function! s:md_to_pdf() abort
+  " check if pandoc is installed
+  if executable('pandoc') != 1
+    echoerr "pandoc not found"
+    return
+  endif
+
+  let l:md_path = expand("%:p")
+  let l:pdf_path = fnamemodify(l:md_path, ":r") .. ".pdf"
+
+  let l:header_path = stdpath('config') . '/resources/head.tex'
+
+  let l:cmd = "pandoc --pdf-engine=xelatex --highlight-style=zenburn --table-of-content " .
+        \ "--include-in-header=" . l:header_path . " -V fontsize=10pt -V colorlinks -V toccolor=NavyBlue " .
+        \ "-V linkcolor=red -V urlcolor=teal -V filecolor=magenta -s " .
+        \ l:md_path . " -o " . l:pdf_path
+
+  if g:is_mac
+    let l:cmd = l:cmd . '&& open ' . l:pdf_path
+  endif
+
+  if g:is_win
+    let l:cmd = l:cmd . '&& start ' . l:pdf_path
+  endif
+
+  " echomsg l:cmd
+
+  let l:id = jobstart(l:cmd)
+
+  if l:id == 0 || l:id == -1
+    echoerr "Error running command"
+  endif
+endfunction

resources/head.tex

@@ -0,0 +1,78 @@
+\usepackage{fancyvrb,newverbs}
+\usepackage[top=2cm, bottom=1.5cm, left=2cm, right=2cm]{geometry}
+
+\PassOptionsToPackage{dvipsnames,svgnames,x11names}{xcolor}
+\usepackage{hyperref}
+
+% begin a new page for each section (first level header),
+% we need to combine this with `-V subparagraph` when invoking pandc
+% \usepackage{titlesec}
+% \newcommand{\sectionbreak}{\clearpage}
+
+% change background color for inline code in markdown files.
+% The following code does not work well for long text, because the text will exceed the page boundary.
+\definecolor{bgcolor}{HTML}{DADADA}
+\let\oldtexttt\texttt
+
+\renewcommand{\texttt}[1]{
+  \colorbox{bgcolor}{\oldtexttt{#1}}
+}
+
+% change style of quote, see also https://tex.stackexchange.com/a/436253/114857
+\usepackage[most]{tcolorbox}
+
+\definecolor{linequote}{RGB}{224,215,188}
+\definecolor{backquote}{RGB}{249,245,233}
+\definecolor{bordercolor}{RGB}{221,221,221}
+
+% change left border: https://tex.stackexchange.com/a/475716/114857
+% change left margin: https://tex.stackexchange.com/a/457936/114857
+\newtcolorbox{myquote}[1][]{%
+    enhanced,
+    breakable,
+    size=minimal,
+    left=10pt,
+    top=5pt,
+    bottom=5pt,
+    frame hidden,
+    boxrule=0pt,
+    sharp corners=all,
+    colback=backquote,
+    borderline west={2pt}{0pt}{bordercolor},
+    #1
+}
+
+% redefine quote environment to use the myquote environment, see https://tex.stackexchange.com/a/337587/114857
+\renewenvironment{quote}{\begin{myquote}}{\end{myquote}}
+
+% start a new page after toc, we need to save the old command before defining
+% new one to avoid recursive command calls,
+% see https://tex.stackexchange.com/questions/47351/can-i-redefine-a-command-to-contain-itself
+\let\oldtoc\tableofcontents
+\renewcommand{\tableofcontents}{\oldtoc\newpage}
+
+% fix header level issue
+\usepackage{enumitem}
+\setlistdepth{9}
+
+\setlist[itemize,1]{label=$\bullet$}
+\setlist[itemize,2]{label=$\bullet$}
+\setlist[itemize,3]{label=$\bullet$}
+\setlist[itemize,4]{label=$\bullet$}
+\setlist[itemize,5]{label=$\bullet$}
+\setlist[itemize,6]{label=$\bullet$}
+\setlist[itemize,7]{label=$\bullet$}
+\setlist[itemize,8]{label=$\bullet$}
+\setlist[itemize,9]{label=$\bullet$}
+\renewlist{itemize}{itemize}{9}
+
+\setlist[enumerate,1]{label=$\arabic*.$}
+\setlist[enumerate,2]{label=$\alph*.$}
+\setlist[enumerate,3]{label=$\roman*.$}
+\setlist[enumerate,4]{label=$\arabic*.$}
+\setlist[enumerate,5]{label=$\alpha*$}
+\setlist[enumerate,6]{label=$\roman*.$}
+\setlist[enumerate,7]{label=$\arabic*.$}
+\setlist[enumerate,8]{label=$\alph*.$}
+\setlist[enumerate,9]{label=$\roman*.$}
+\renewlist{enumerate}{enumerate}{9}