My (neo)Vim Configuration File

init.vim

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
                                  " VIM SETTINGS
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

" TURNS LINE NUMBERING ON
set nu

" TRIGGER `autoread` WHEN FILES CHANGES ON DISK
set autoread
autocmd FocusGained,BufEnter,CursorHold,CursorHoldI * if mode() != 'c' | checktime | endif

" PLACE THE CURSOR ANYWHERE
set virtualedit=all

" ENABLES A SYSTEM-WIDE VIMRC
set nocompatible 

" ENSURES DEFVAULT VIM SYNTAX HIGHLIGHTING
syntax on

" ENABLE MOUSE USE IN ALL MODES
set mouse=a

" ENABLES SPELLCHECK
set spell

" ENABLE SAVING OF TAB TITLES FOR SESSIONS 
set sessionoptions+=tabpages,globals

set encoding=utf-8

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
                                    " PLUGINS
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

" ENABLES PLUGINS TO WORK
filetype plugin on

" LOCATION OF WHERE PLUGINS ARE INSTALLED
call plug#begin('~/.vim/addons')

" Git gutter for Vim
Plug 'airblade/vim-gitgutter'

" Preview markdown on your modern browser with synchronised scrolling and flexible configuration.
Plug 'iamcco/markdown-preview.nvim', { 'do': { -> mkdp#util#install() } }

" Highlight lines in buffer
" Plug 'junegunn/limelight.vim'

" Distraction free writing
Plug 'junegunn/goyo.vim'

" Terminal in floating window
Plug 'voldikss/vim-floaterm'

" Vim test snippets
Plug 'SirVer/ultisnips'
Plug 'honza/vim-snippets'

" Automatic pane resizing
" Plug 'camspiers/lens.vim'

" Support for Julia
Plug 'JuliaEditorSupport/julia-vim'

" Formatting Julia Files
Plug 'kdheepak/JuliaFormatter.vim'

" Formatting of HTML, JS, CSS, JSON, and JSX Files
Plug 'maksimr/vim-jsbeautify'

" Adding support for LaTeX
Plug 'lervag/vimtex'

" Live Previewing of LaTeX Documents
Plug 'xuhdev/vim-latex-live-preview', { 'for': 'tex' }

" Moving through Vim easily
Plug 'easymotion/vim-easymotion'

" Command line fuzzy finder
Plug 'junegunn/fzf', { 'do': './install --bin' } "Checks latest fzf binary
Plug 'junegunn/fzf.vim'

" The fancy start screen for Vim
Plug 'mhinz/vim-startify'

" Effective search and listing of queries
Plug 'dyng/ctrlsf.vim'

" Easy commenting for Vim
Plug 'preservim/nerdcommenter'

" Support for Todo.txt files
Plug 'dbeniamine/todo.txt-vim'

" Formatting for SQL scripts
Plug 'mattn/vim-sqlfmt'

" Gruvbox color theme for Vim 
Plug 'morhetz/gruvbox'

" Window swapping powers
Plug 'wesQ3/vim-windowswap'

" Editing Jupyter files in Vim
Plug 'goerz/jupytext.vim'

" BibTeX Handling
Plug 'vim-pandoc/vim-pandoc'
Plug 'vim-pandoc/vim-pandoc-syntax' "Also used for Markdown formatting

" Better Outliner - I cannot stand the TOC from pandoc! 
Plug 'vim-voom/VOoM'

" VIM Table Mode for instant table creation.
Plug 'dhruvasagar/vim-table-mode'

" Deoplete Completion framework
if has('nvim')
  Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
else
  Plug 'Shougo/deoplete.nvim'
  Plug 'roxma/nvim-yarp'
  Plug 'roxma/vim-hug-neovim-rpc'
endif

" Deoplete word autocompletion
Plug 'deathlyfrantic/deoplete-spell'

" Tab naming powers
Plug 'gcmt/taboo.vim'

" Multiple cursors for editing
Plug 'mg979/vim-visual-multi'

" Adds file type icons to Vim plugins
Plug 'ryanoasis/vim-devicons'

" Distraction-free writing in Vim
Plug 'junegunn/goyo.vim'

" Vim session saving
Plug 'tpope/vim-obsession'

" Rethinking Vim as a tool for writing
Plug 'reedes/vim-pencil'

" Small scratch space for fleeting notes
Plug 'mtth/scratch.vim'

" Lean & mean status/tabline for vim that's light as air
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes' "Installs themes for airline

call plug#end()

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
                                " PLUGIN SETTINGS
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

"""""""""""""""""""""
"JULIA FORMATTER
"""""""""""""""""""""

let g:JuliaFormatter_options = {
        \ 'indent'                    : 4,
        \ 'margin'                    : 92,
        \ 'always_for_in'             : v:false,
        \ 'whitespace_typedefs'       : v:false,
        \ 'whitespace_ops_in_indices' : v:true,
        \ }

"""""""""""""""""""""
" VIM VISUAL MULTI
"""""""""""""""""""""

let g:VM_maps = {}
let g:VM_maps["Add Cursor Down"]   = '<C-j>'
let g:VM_maps["Add Cursor Up"]     = '<C-k>'

"""""""""""""""""""""
" VIM VISUAL MULTI
"""""""""""""""""""""

let g:UltiSnipsSnippetDirectories=["UltiSnips", "my_snippets"]

"""""""""""""""""
"MARKDOWN-PREVIEW
"""""""""""""""""

" ${name} will be replace with the file name
let g:mkdp_page_title = '「${name}」'
let g:mkdp_preview_options = {
    \ 'mkit': {},
    \ 'katex': {},
    \ 'uml': {},
    \ 'maid': {},
    \ 'disable_sync_scroll': 0,
    \ 'sync_scroll_type': 'middle',
    \ 'hide_yaml_meta': 1,
    \ 'sequence_diagrams': {},
    \ 'flowchart_diagrams': {}
    \ }

let g:mkdp_browser = 'vivaldi'

"""""""""""""""""""""
" CTRLSF
"""""""""""""""""""""

let g:ctrlsf_preview_position = 'inside'
let g:ctrlsf_position = 'right'
let g:ctrlsf_auto_preview = 1
let g:ctrlsf_default_root = 'project+ww'
let g:ctrlsf_winsize = '20%'
let g:ctrlsf_context = '-C 1'

"""""""""""""""""""""
" LIMELIGHT
"""""""""""""""""""""

" autocmd! User GoyoEnter Limelight
" autocmd! User GoyoLeave Limelight!

"""""""""""""""""""""
" GOYO
"""""""""""""""""""""

let g:goyo_height = 80
let g:goyo_width = 80

"""""""""""""""""""""
" AIRLINE
"""""""""""""""""""""

" Enabling Powerline symbols
let g:airline_powerline_fonts = 1

" Allows word counting in the following filetypes
let g:airline#extensions#wordcount#filetypes = '\vasciidoc|help|mail|markdown|pandoc|org|rst|tex|text'

" Shows all buffers when only one tab open
let g:airline#extensions#tabline#enabled = 0

" Removes fileformat
let g:airline_section_y = ''

" Removes section on whitespace errors, etc.
let g:airline_section_warning = ''

" Disable SPELL section
let g:airline_detect_spell = 0

" Handles file path displays
let g:airline#extensions#tabline#formatter = 'unique_tail_improved'

" Sets theme for airline
let g:airline_theme='gruvbox'

""""""""""""""""""""""""""""""
" VIM-JSBEAUTIFY 
""""""""""""""""""""""""""""""
".vimrc
autocmd FileType javascript noremap <buffer>  <c-f> :call JsBeautify()<cr>
" for json
autocmd FileType json noremap <buffer> <c-f> :call JsonBeautify()<cr>
" for jsx
autocmd FileType jsx noremap <buffer> <c-f> :call JsxBeautify()<cr>
" for html
autocmd FileType html noremap <buffer> <c-f> :call HtmlBeautify()<cr>
" for css or scss
autocmd FileType css noremap <buffer> <c-f> :call CSSBeautify()<cr>

""""""""""""""""""""""""""""""
" JUPYTEXT
""""""""""""""""""""""""""""""
let g:jupytext_filetype_map = { 'py': 'python' }

""""""""""""""""""""""""""""""
" VIMPENCIL
""""""""""""""""""""""""""""""

" Automatically enable Pencil for files
augroup pencil
  autocmd!
  autocmd FileType py call pencil#init({'wrap' : 'soft'})
  autocmd FileType markdown call pencil#init({'wrap' : 'soft'})
  autocmd FileType julia call pencil#init({'wrap' : 'soft'})
  autocmd FileType tex call pencil#init({'wrap' : 'soft'})
  autocmd FileType ctrlsf call pencil#init({'wrap' : 'soft'})
  autocmd FileType voomtree call pencil#init({'wrap' : 'soft'})
augroup END

""""""""""""""""""""""""""""""
" GRUVBOX
""""""""""""""""""""""""""""""
let g:gruvbox_termcolors=16
let g:gruvbox_contrast_dark = 'medium'
colorscheme gruvbox
set background=dark " Setting dark mode
" Making comments italic
highlight Comment cterm=italic

""""""""""""""""""""""""""""""
" TODOTXT-VIM
""""""""""""""""""""""""""""""
let g:Todo_txt_prefix_creation_date=1
let g:Todo_fold_char='+'
let g:TodoTxtForceDoneName='Done.txt'

" Autocompletion
au filetype todo setlocal omnifunc=todo#Complete
au filetype todo imap <buffer> + +<C-X><C-O>
au filetype todo imap <buffer> @ @<C-X><C-O>

""""""""""""""""""""""""""""""
" VIM-GITGUTTER
""""""""""""""""""""""""""""""
set updatetime=250
let g:gitgutter_max_signs = 500
let g:gitgutter_override_sign_column_highlight = 0

highlight clear SignColumn
highlight GitGutterAdd ctermfg=2
highlight GitGutterChange ctermfg=3
highlight GitGutterDelete ctermfg=1
highlight GitGutterChangeDelete ctermfg=4

""""""""""""""""""""""""""""""
" TABULAR & VIM-MARKDOWN
""""""""""""""""""""""""""""""

let g:vim_markdown_folding_level = 1

""""""""""""""""""""""""""""""
" VIM-PANDOC
""""""""""""""""""""""""""""""
let g:pandoc#filetypes#handled = ['pandoc', 'markdown'] 
let g:pandoc#modules#disabled = ['folding', 'toc']
let g:pandoc#folding#fold_fenced_codeblocks = 1
let g:pandoc#folding#fold_yaml = 1
let g:pandoc#biblio#bibs = ['/home/src/Knowledgebase/Zettelkasten/zettel.bib', '/home/src/Projects/C3T/citations.bib']
let g:pandoc#toc#close_after_navigating = 0
let g:pandoc#toc#position = 'left' 
let g:pandoc#toc#shift = 0
let g:pandoc#folding#fdc = 0

""""""""""""""""""""""""""""""
" VIM-PANDOC-SYNTAX
""""""""""""""""""""""""""""""
let g:pandoc#syntax#conceal#blacklist = ['strikeout', 'list', 'quotes']

""""""""""""""""""""""""""""""
" DEOPLETE
""""""""""""""""""""""""""""""

" Turns on Deoplete at start-up of Vim
let g:deoplete#enable_at_startup = 1

" Chooses backend for bibtex autocompletion
"let g:pandoc#completion#bib#mode = 'citeproc'

" Disables autocompletion while writing
"call deoplete#custom#option('auto_complete', v:false)

" Enables omnicompletion of citation keys
call deoplete#custom#var('omni', 'input_patterns', {
    			\ 'pandoc': '@'
    			\})

" Enables deoplete for tex files
call deoplete#custom#var('omni', 'input_patterns', {
          \ 'tex': g:vimtex#re#deoplete
          \})

""""""""""""""""""""""""""""""
" FZF-VIM
""""""""""""""""""""""""""""""

let $FZF_DEFAULT_OPTS='--reverse' 
let g:fzf_layout = { 'window': { 'width': 0.8, 'height': 0.8 } }
let g:fzf_action = {
  \ 'ctrl-t': 'tab split',
  \ 'ctrl-x': 'split',
  \ 'ctrl-v': 'vsplit',
  \ 'ctrl-o': ':r !echo',
  \ }


""""""""""""""""""""""""""""""
" VIM-TEX 
""""""""""""""""""""""""""""""

let g:tex_flavor='latexmk'
let g:vimtex_view_general_viewer = 'okular'
let g:vimtex_view_general_options = '--unique file:@pdf\#src:@line@tex'
let g:vimtex_view_general_options_latexmk = '--unique'
let g:vimtex_quickfix_mode=0
let g:vimtex_fold_enabled = 1
let g:vimtex_fold_types = {
           \ 'preamble' : {'enabled' : 1},
           \ 'sections' : {'enabled' : 0},
           \ 'envs' : {
           \   'blacklist' : ['figures'],
           \ },
           \}


""""""""""""""""""""""""""""""
" VIM-LATEX-LIVE-PREVIEW 
""""""""""""""""""""""""""""""
let g:livepreview_previewer = 'zathura'
let g:livepreview_use_biber = 1

""""""""""""""""""""""""""""""
" VIM-FLOATERM
""""""""""""""""""""""""""""""

let g:floaterm_open_command = 'vsplit'

""""""""""""""""""""""""""""""
" LENS
""""""""""""""""""""""""""""""
let g:lens#disabled_filetypes = ['nerdtree', 'fzf', 'voomtree']

""""""""""""""""""""""""""""""
" VIM-TABLE-MODE
""""""""""""""""""""""""""""""

let g:table_mode_corner = "|"
let g:table_mode_align_char = ":"

function! s:isAtStartOfLine(mapping)
  let text_before_cursor = getline('.')[0 : col('.')-1]
  let mapping_pattern = '\V' . escape(a:mapping, '\')
  let comment_pattern = '\V' . escape(substitute(&l:commentstring, '%s.*$', '', ''), '\')
  return (text_before_cursor =~? '^' . ('\v(' . comment_pattern . '\v)?') . '\s*\v' . mapping_pattern . '\v$')
endfunction

inoreabbrev <expr> <bar><bar>
          \ <SID>isAtStartOfLine('\|\|') ?
          \ '<c-o>:TableModeEnable<cr><bar><space><bar><left><left>' : '<bar><bar>'
inoreabbrev <expr> __
          \ <SID>isAtStartOfLine('__') ?
          \ '<c-o>:silent! TableModeDisable<cr>' : '__'


""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
                                  " VIM FUNCTIONS
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

" code/string searching tool for multifile exploration
let g:ackprg = 'ag --nogroup --nocolor --column'

function! TwiddleCase(str)
  if a:str ==# toupper(a:str)
    let result = tolower(a:str)
  elseif a:str ==# tolower(a:str)
    let result = substitute(a:str,'\(\<\w\+\>\)', '\u\1', 'g')
  else
    let result = toupper(a:str)
  endif
  return result
endfunction

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
                                 " KEY REMAPS 
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

" Enables ripgrep for file completion via fzf
inoremap <expr> <c-x><c-f> fzf#vim#complete#path('rg --files')

" Maps leader to the spacebar
map <Space> <Leader>

nnoremap   <silent>   <F9>    :FloatermNew --height=0.4 --width=0.98 --wintype=floating --position=bottom --autoclose=2 --title=
tnoremap   <silent>   <F9>    <C-\><C-n>:FloatermNew --height=0.4 --width=0.98 --wintype=floating --position=bottom --autoclose=2 --title=
nnoremap   <silent>   <F8>    :FloatermPrev<CR>
tnoremap   <silent>   <F8>    <C-\><C-n>:FloatermPrev<CR>
nnoremap   <silent>   <F10>    :FloatermNext<CR>
tnoremap   <silent>   <F10>    <C-\><C-n>:FloatermNext<CR>
inoremap   <silent>   <F11>   <C-c>:FloatermToggle<CR>
nnoremap   <silent>   <F11>   :FloatermToggle<CR>
tnoremap   <silent>   <F11>   <C-\><C-n>:FloatermToggle<CR>
tnoremap   <silent>   <M-o>   <C-\><C-n><CR>

nnoremap   <C-c><C-c> :FloatermSend<CR>
vnoremap   <C-c><C-c> :FloatermSend<CR>

" Maps easymotion jumps for lines
map <leader><space>l <Plug>(easymotion-bd-jk)
nmap <leader><space>l <Plug>(easymotion-overwin-line)

" Maps easymotion jumps for words
map  <leader><Space>w <Plug>(easymotion-bd-w)
nmap <leader><Space>w <Plug>(easymotion-overwin-w)

" Maps Ranger 
nnoremap <silent> <F7> :RnvimrToggle<CR>
tnoremap <silent> <F7> <C-\><C-n>:RnvimrToggle<CR>

" Automatic formatting for Julia files
autocmd FileType julia nnoremap <buffer> <c-f> :JuliaFormatterFormat<cr>

" Automatic formatting for SQL files
autocmd FileType sql nnoremap <buffer> <c-f> :SQLFmt<cr>

" Maps quit
noremap <leader>q :q<cr>

" Maps quit all  
noremap <c-q> :qa<cr>

" Maps write
nnoremap <leader>w :w<cr>

" Maps ripgrep file searching function
nnoremap <C-g> :Rg<Cr>

" Maps display of current buffers 
nnoremap <C-b> :Buffers<Cr>

" Deselects currently highlighted searches 
nnoremap <Leader><BS> :noh<cr>

" Activates Twiddle case to switch between cases of selected text
vnoremap ~ y:call setreg('', TwiddleCase(@"), getregtype(''))<CR>gv""Pgv

" Mappings for venn
vnoremap <leader>g :VBox<CR>

Great tools and plugins!
Like the way you seperate the settings for different plugins.

Thanks @JackyYin ! I try to make it as easy as possible to understand because as some point, I will forget how things work. So, I need to make them understandable and well documented such that anyone could understand them!