Convenient Vim configuration

vimrc

" Settings
set autoindent
set expandtab
set hlsearch
set ignorecase
set incsearch
set nojoinspaces
set number
set showcmd
set showmatch
set title
set whichwrap+=<,>,h,l,[,]
set wildignorecase
set wildmenu

set spell spelllang=el,en
set iskeyword=@,48-57,_,162,182,184-186,188,190-209,211-254

" Shortcuts
map  <F1>  :windo set number!<CR>
map! <F1>  <C-O><F1>
map  <F2>  <C-W>=:windo set wrap!<CR>
map! <F2>  <C-O><F2>
map  <F3>  :q<CR>
map! <F3>  <Esc><F3>
map  <F4>  :if &formatoptions =~ 'a' <Bar>
             \ set formatoptions-=a <Bar>
           \ else <Bar>
             \ set formatoptions+=a <Bar>
             \ set textwidth=72 <Bar>
             \ set indentkeys= <Bar>
           \ endif <CR>
map! <F4>  <C-O><F4>
map  <F5>  <C-W><C-W>
map! <F5>  <C-O><F5>
map  <F6>  :windo set background=light<CR>
map! <F6>  <C-O><F6>
map  <F7>  :if exists('g:syntax_on') <Bar>
             \ syntax off <Bar>
           \ else <Bar>
             \ syntax enable <Bar>
           \ endif <CR>
map! <F7>  <C-O><F7>
map  <F8>  :nohlsearch<CR>
map! <F8>  <C-O><F8>
map  <F9>  :windo set spell!<CR>
map! <F9>  <C-O><F9>
noremap <F10> <C-Y>
map! <F10> <C-O><F10>
noremap <F11> <C-E>
map! <F11> <C-O><F11>
map  <F12> :w<CR>
map! <F12> <Esc><F12>

map  <C-T> :tabe<CR>
map  <C-kPlus>  <C-A>
map  <C-kMinus> <C-X>

map  <C-BS> i<C-W><Esc>
map! <C-BS> <C-W>
map  <C-Del> dw
map! <C-Del> <C-O><C-Del>
map! <C-B> “…”

set formatoptions+=n
let &formatlistpat = '^\s*\(+\|-\|\*\|\d\+\.\|\\item\S*\) '

for s:bakdir in ['C:\Users\npothito\Desktop\Nikos\vim-backup']
    if isdirectory(s:bakdir)
        let &backupdir = s:bakdir
        let &undodir = s:bakdir
    endif
endfor

" Taken from defaults.vim:
" When editing a file, always jump to the last known cursor position.
" Don't do it when the position is invalid, when inside an event handler
" (happens when dropping a file on gvim) and for a commit message (it's
" likely a different one than last time).
autocmd BufReadPost *
  \ if line("'\"") >= 1 && line("'\"") <= line("$") && &ft !~# 'commit'
  \ |   exe "normal! g`\""
  \ | endif

autocmd FileType text setlocal textwidth=0

" Consider set background=dark in /etc/vim/vimrc if using a dark background

" If beautification of fonts is needed in Windows 10
"set guifont=Consolas:h10:cGREEK:qDRAFT
"set enc=utf8

" For Python container
"syn on
"highlight clear SpellBad
"highlight SpellBad cterm=underline

" Groovy syntax highlighting
"autocmd BufNewFile,BufRead *.gvy,Jenkinsfile set syntax=groovy