small fix

auto-save.nvim is erroring out

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/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

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/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/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'})
@@ -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}