set number          " show line numbers
set tabstop=4       " number of visual spaces per tab
set softtabstop=4   " number of spaces in tab when editing
set shiftwidth=4    " number of spaces in an indent
set expandtab       " tabs are spaces
set backspace=2     " backspace like in a graphical text editor
set wildmode=longest,list   " change filename autocomplete to be more like bash
set mouse=v                 " some vim defaults to mouse=a, which sucks for copying and pasting in Xorg
syntax on
filetype on             " enable file type detection
filetype plugin on      " enable file type plugins
filetype indent on      " enable file type indents

" You might have to force true color when using regular vim inside tmux as the
" colorscheme can appear to be grayscale with "termguicolors" option enabled.
" See: https://gist.github.com/andersevenrud/015e61af2fd264371032763d4ed965b6
if !has('gui_running') && &term =~ '^\%(screen\|tmux\)'
  let &t_8f = "\<Esc>[38;2;%lu;%lu;%lum"    " set foreground color
  let &t_8b = "\<Esc>[48;2;%lu;%lu;%lum"    " set background color
endif

colorscheme selenized
set termguicolors
set background=dark

" for per-directory vimrc files
" see: https://jezenthomas.com/how-i-write-invoices-in-vim/
set exrc " Enable use of directory-specific .vimrc
set secure " Only run autocommands owned by me

" from: https://github.com/jfrazelle/.vim/blob/master/vimrc
set noswapfile                  " Don't use swapfile
set nobackup                    " Don't create annoying backup files
set nowritebackup
set splitright                  " Split vertical windows right to the current windows
set splitbelow                  " Split horizontal windows below to the current windows
set encoding=utf-8              " Set default encoding to UTF-8

set fileformats=unix,dos,mac    " Prefer Unix over Windows over OS 9 formats

set nocompatible
set incsearch                   " Shows the match while typing
set hlsearch                    " Highlight found searches
set ignorecase                  " Search case insensitive...
set smartcase                   " ... but not when search pattern contains upper case characters

" speed up syntax highlighting
set nocursorcolumn
set nocursorline