.vimrc

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"  Init
set nocompatible
execute pathogen#infect()
execute pathogen#helptags()

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"  Mappings

" quickly edit the .vimrc file
nmap <silent> <leader>ev :e $MYVIMRC<CR>
" quickly reload the .vimrc file
nmap <silent> <leader>sv :so $MYVIMRC<CR>
" remap : to ; for quick execution of common commands
nnoremap ; :
" use Q for formatting the current paragraph
" use Q for formatting the current selection
nmap Q gqap
" jumps to the next row in the editor disregarding line wrap
nnoremap j gj
nnoremap k gk
" Easy window navigation
map <C-h> <C-w>h
map <C-j> <C-w>j
map <C-k> <C-w>k
map <C-l> <C-w>l
" clear search highlight
nmap <silent> ,/ :nohlsearch<CR>
" save with sudo
cmap w!! w !sudo tee % >/dev/null
" disable up arrow
"map <up> <nop>
" disable down arrow
"map <down> <nop>
" disable left arrow
"map <left> <nop>
" disable right arrow
"map <right> <nop>
" toggle NERDTree
map <C-n> :NERDTreeToggle<CR>

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"  Behaviours
set hidden                                " hide buffers rather than close them
set number                                " always show line numbers
set nowrap                                " don't wrap lines
set tabstop=4                             " a tab is four spaces
set backspace=indent,eol,start            " allow backspacing over everything in insert mode
set autoindent                            " always set autoindenting on
set copyindent                            " copy the previous indentation on autoindenting
set shiftwidth=4                          " number of spaces to use for autoindenting
set shiftround                            " use multiple of shiftwidth when indenting with '<' and '>'
set showmatch                             " set show matching parenthesis
set ignorecase                            " ignore case when searching
set smartcase                             " ignore case if search pattern is all lowercase, case-sensitive otherwise
set smarttab                              " insert tabs on the start of a line according to shiftwidth, not tabstop
set hlsearch                              " highlight search terms
set incsearch                             " show search matches as you type
set history=1000                          " remember more commands and search history
set undolevels=1000                       " remember more undo history
set wildignore=*.swp,*.bak,*.pyc,*.class  " ignore extensions for name completions when tabbing
set title                                 " change the terminal's title
set visualbell                            " don't beep
set noerrorbells                          " don't beep
set nobackup                              " don't backup files
set noswapfile                            " don't create swap files
set expandtab                             " always convert tabs to spaces

set list
set listchars=tab:▸\ ,trail:·,extends:>,precedes:<,nbsp:·,space:·,eol:$

set pastetoggle=<F2>

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"  Plugins
filetype plugin indent on

let NERDTreeShowHidden=1

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"  Highlighting
" switch syntax highlighting on when the terminal has colors
if &t_Co > 2 || has("gui_running")
    syntax on
endif

if &t_Co >= 256 || has("gui_running")
    set background=dark
    let g:solarized_termcolors=256
    colorscheme solarized
    set cursorline
    highlight NonText ctermfg=240 ctermbg=none
    highlight SpecialKey ctermfg=240 ctermbg=none
endif

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"  Autocmd
if has('autocmd')
    autocmd VimEnter * set list
    autocmd StdinReadPre * let s:std_in=1
    autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif
    autocmd VimEnter * if argc() == 1 && isdirectory(argv()[0]) && !exists("s:std_in") | exe 'NERDTree' argv()[0] | wincmd p | ene | endif
endif

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"  Airline
let g:airline_powerline_fonts=1
if !exists('g:airline_symbols')
    let g:airline_symbols={}
endif
let g:airline_symbols.space="\ua0"
let g:airline_theme="solarized"
" Enable the list of buffers
let g:airline#extensions#tabline#enabled = 1
" Show just the filename
let g:airline#extensions#tabline#fnamemod = ':t'
let g:airline#extensions#tabline#left_sep = ' '
let g:airline#extensions#tabline#left_alt_sep = '|'
set laststatus=2