" disable autocmd
set secure

" file/directory matching
set wildmode=list:longest,full
" ignore case when completing
if exists('+wildignorecase')
	set wildignorecase
endif
" ignorelist
set wildignore=*.o,*.d,*.so,*.class,*.aux,*.log,*.out,*.toc,*.pdf,*.pyc

" increase command history
set history=1000
" increase count of possible undos
set undolevels=1000

" use unix line-endings and recognize dos endings
set fileformats=unix,dos

" tabs
set tabstop=4
set shiftwidth=4
set autoindent
set smartindent
set smarttab

" allow backspacing over autoindent and line breaks
set backspace=indent,eol,start

" already display matches while searching
set incsearch
" only check for case if the searched word contains a capital
set ignorecase
set smartcase
" highlight all matches. use <C-L> to remove the highlights
set hlsearch

" treat hyphenated words as a single word
set iskeyword+=-

" syntax folding
if has('folding')
	set foldmethod=syntax
	" only use folding when there is enough space
"	if &columns > 80
"		set foldcolumn=2
"	endif
	set foldlevel=99

	" dont open fold for block movements
	set foldopen-=block
endif

" allow buffers with changes to be hidden
set hidden

" correct splitting
if has('vertsplit')
	set splitright
	set splitbelow
endif

" Visual
" set text color for dark terminal background
set background=dark

" activate syntax highlighting
if has('syntax')
	syntax enable
endif

" set colorscheme
colorscheme dichromatic
" TODO: use `colorscheme ron` as fallback?

" display line at which the current is positioned
if exists('+cursorline')
	set cursorline
	" remove line and make the line bold instead
	highlight CursorLine term=bold cterm=bold
	highlight CursorLineNR term=bold cterm=bold ctermbg=darkgrey
endif

" display warning column at 81 and 121
let &colorcolumn="81,121"
highlight ColorColumn ctermbg=235 guibg=#2d2d2d

" display line numbers
set number

" show cursor position all the time
set ruler

" show vim tabs all the time
set showtabline=2

" show currently typed command
set showcmd

" define characters to display when using 'set list'
set listchars=tab:→\ ,trail:∙,eol:¬,extends:❯,precedes:❮,nbsp:␣

" enable nvim-colorizer
if has('nvim')
	set termguicolors
	lua require'colorizer'.setup()
endif

" increase completion performance and reduce time until timeout
set updatetime=300
set timeoutlen=500

" copy paste between vim and everything else
set clipboard=unnamedplus

" Misc
set mouse=n

" remove windows ^M when the encoding gets messed up
noremap <Leader>m mmHmt:%s/<C-V><cr>//ge<cr>'tzt'm

" autoreload vimrc when writing init.vim
au! BufWritePost $MYVIMRC source %

" add convenience command for force-saving read-only files
cmap w!! w !sudo tee %