Vim setup

syntax on
set incsearch
set number
set nobackup
set smartindent
set nowrap
set mouse=a
set shiftwidth=4
set ruler       " bottom-left showing current row col position

filetype indent on


"set line number colors
hi CursorLineNr cterm=bold ctermfg=Green ctermbg=NONE
" underline cursor line and mark line color green
hi LineNr cterm=bold ctermfg=DarkGrey ctermbg=NONE


"mapping rules

" when enter '{', vim will generate {\n}\n, 'k' curosr goes up, 'o' auto insert newline
inoremap {<CR> {<CR>}<Esc>ko
"  'i' means enter insert mode
inoremap ( ()<Esc>i
" "", '' and <> >mapping
inoremap " ""<Esc>i
inoremap ' ''<Esc>i
inoremap < <><Esc>i



" Color configuration
set bg=dark
color evening  " Same as :colorscheme eveni:

" ggVG to ctrl-a in vim, gg goes to the top of a file, V goes to visual mode, G goes to end of file



" auto run python with f9
autocmd FileType python map <buffer> <F9> :w<CR>:exec '!python3' shellescape(@%, 1)<CR>
autocmd FileType python imap <buffer> <F9> <esc>:w<CR>:exec '!python3' shellescape(@%, 1)<CR>

" auto gcc/g++ and execute f5 (not working)
" autocmd FileType c map <buffer> <F5> :w<CR>:exec '!gcc' shellescape(@%, 1) '-o' shellescape(@%, 1:r) && './'.shellescape(@%, 1:r)<CR>
" autocmd FileType c++ map <buffer> <F5> :w<CR>:exec '!g++' shellescape(@%, 1) '-o' shellescape(@%, 1:r) && './'.shellescape(@%, 1:r)<CR>