" When started as "evim", evim.vim will already have done these settings.
if v:progname =~? "evim"
	finish
endif

" Enable pathogen
execute pathogen#infect()

" Use Vim settings, rather than Vi settings (much better!).
" This must be first, because it changes other options as a side effect.
set nocompatible

" allow backspacing over everything in insert mode
set backspace=indent,eol,start

set backup		" keep a backup file (restore to previous version)
set undofile		" keep an undo file (undo changes after closing)
set history=50		" keep 50 lines of command line history
set ruler		" show the cursor position all the time
set showcmd		" display incomplete commands
set incsearch		" do incremental searching

" CTRL-U in insert mode deletes a lot.  Use CTRL-G u to first break undo,
" so that you can undo CTRL-U after inserting a line break.
inoremap <C-U> <C-G>u<C-U>

" In many terminal emulators the mouse works just fine, thus enable it.
if has('mouse')
	set mouse=a
endif

" Switch syntax highlighting on, when the terminal has colors
" Also switch on highlighting the last used search pattern.
if &t_Co > 2 || has("gui_running")
	syntax on
	set hlsearch
endif

" Only do this part when compiled with support for autocommands.
if has("autocmd")
	" Enable file type detection.
	" Use the default filetype settings, so that mail gets 'tw' set to 72,
	" 'cindent' is on in C files, etc.
	" Also load indent files, to automatically do language-dependent indenting.
	filetype plugin indent on

	" Put these in an autocmd group, so that we can delete them easily.
	augroup vimrcEx
	au!

	" For all text files set 'textwidth' to 78 characters.
	autocmd FileType text setlocal textwidth=78

	" When editing a file, always jump to the last known cursor position.
	" Don't do it when the position is invalid or when inside an event handler
	" (happens when dropping a file on gvim).
	autocmd BufReadPost *
		\ if line("'\"") >= 1 && line("'\"") <= line("$") |
		\   exe "normal! g`\"" |
		\ endif
	augroup END
else
	set autoindent		" always set autoindenting on
endif " has("autocmd")

if has('langmap') && exists('+langnoremap')
	" Prevent that the langmap option applies to characters that result from a
	" mapping.  If unset (default), this may break plugins (but it's backward
	" compatible).
	set langnoremap
endif

" Show a marker to help identify the 80 char limit
set colorcolumn=80

" Use color terminal if available
if &t_Co > 2
	set t_Co=256
endif

" F3: Toggle list (display unprintable characters).
noremap <F3> :set list!<CR>
inoremap <F3> <C-o>:set list!<CR>
cnoremap <F3> <C-c>:set list!<CR>
set listchars=tab:>-,trail:.,extends:>,precedes:<,eol:$

" Always show line numbering
set nu
set rnu

" Configure airline
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#tabline#show_buffers = 1
let g:airline#extensions#tabline#show_tabs = 0
let g:airline#extensions#whitespace#mixed_indent_algo = 2
let g:airline#extensions#whitespace#symbol = '!'
let g:airline#extensions#whitespace#checks = [ 'indent', 'trailing', 'long', 'mixed-indent-file' ]
let g:airline#extensions#whitespace#max_lines = 20000