.vimrc

set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'VundleVim/Vundle.vim'

" The following are examples of different formats supported.
" Keep Plugin commands between vundle#begin/end.
" plugin on GitHub repo
"Plugin 'tpope/vim-fugitive'
" plugin from http://vim-scripts.org/vim/scripts.html
"Plugin 'L9'
" Git plugin not hosted on GitHub
"Plugin 'git://git.wincent.com/command-t.git'
" git repos on your local machine (i.e. when working on your own plugin)
"Plugin 'file:///home/gmarik/path/to/plugin'
" The sparkup vim script is in a subdirectory of this repo called vim.
" Pass the path to set the runtimepath properly.
"Plugin 'rstacruz/sparkup', {'rtp': 'vim/'}
"Plugin Autopair
Plugin 'jiangmiao/auto-pairs'
" The monokai color scheme.
Plugin 'jacoborus/tender.vim'
" The project source tree browser.
Plugin 'scrooloose/nerdtree'

" The enhanced editor status bar.
Plugin 'vim-airline/vim-airline'
Plugin 'vim-airline/vim-airline-themes'

" The enhanced C++ syntax highlighting.
Plugin 'octol/vim-cpp-enhanced-highlight'

" The auto-complete module.
Plugin 'Valloric/YouCompleteMe'

"Supertab to use tab for YCM and Snippets
Plugin 'ervandew/supertab'
"Snippets
Plugin 'SirVer/ultisnips'
Plugin 'honza/vim-snippets'
" All of your Plugins must be added before the following line
call vundle#end()            " required
filetype plugin indent on    " required
" To ignore plugin indent changes, instead use:
"filetype plugin on
"
" Brief help
" :PluginList       - lists configured plugins
" :PluginInstall    - installs plugins; append `!` to update or just :PluginUpdate
" :PluginSearch foo - searches for foo; append `!` to refresh local cache
" :PluginClean      - confirms removal of unused plugins; append `!` to auto-approve removal
"
" see :h vundle for more details or wiki for FAQ
" Put your non-Plugin stuff after this line

" ---------- color scheme ----------
if (has("termguicolors"))
 set termguicolors
endif

syntax enable
colorscheme tender

" ---------- General Settings ----------
set backspace=indent,eol,start

syntax enable

" Show line numbers
set number

" Highlight matching brace
set showmatch

" Highlight all search results
set hlsearch

" Highlight the current cursor line
set cursorline

" Highlight the 80 columns margin.
set colorcolumn=80

" Trim the trailing white space on save.
autocmd BufWritePre <buffer> :%s/\s\+$//e

" ---------- Indentation ----------
" Use spaces instead of tabs
set expandtab

" Number of spaces that a <TAB> in the file counts for
set tabstop=4

" Number of auto-indent spaces
set shiftwidth=4
set autoindent

" ---------- Folding ----------
set foldenable
set foldmethod=syntax

" Do not fold the code by default
set foldlevel=10000

" ---------- NerdTree Project Browser ----------
nnoremap <C-n> :NERDTreeToggle<CR>
nmap <F3> :NERDTreeToggle<CR>

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


" ---------- Enhanced C++ syntax highlighting ----------
let g:cpp_class_scope_highlight=1
let g:cpp_concepts_highlight=1
let g:cpp_experimental_simple_template_highlight=1


" ---------- YCM Auto Complete ----------
nnoremap <F12> :YcmCompleter GoTo<CR>

"let g:ycm_global_ycm_extra_conf = '~/.ycm_extra_conf.py'
let g:ycm_confirm_extra_conf = 0
let g:ycm_collect_identifiers_from_tags_files = 1
let g:ycm_autoclose_preview_window_after_insertion = 1
let g:ycm_autoclose_preview_window_after_completion = 1


" set airline theme
let g:airline_theme = 'tender'
let g:airline_powerline_fonts = 1

" Compile and run C++ n Python
autocmd filetype python nnoremap <F4> :w <bar> exec '!python '.shellescape('%')<CR>
autocmd filetype c nnoremap <F4> :w <bar> exec '!gcc '.shellescape('%').' -o '.shellescape('%:r').' && ./'.shellescape('%:r')<CR>
autocmd filetype cpp nnoremap <F4> :w <bar> exec '!g++ '.shellescape('%').' -o '.shellescape('%:r').' && ./'.shellescape('%:r')<CR>

" make YCM compatible with UltiSnips (using supertab)
let g:ycm_key_list_select_completion = ['<C-n>', '<Down>']
let g:ycm_key_list_previous_completion = ['<C-p>', '<Up>']
let g:SuperTabDefaultCompletionType = '<C-n>'

" better key bindings for UltiSnipsExpandTrigger
let g:UltiSnipsExpandTrigger = "<tab>"
let g:UltiSnipsJumpForwardTrigger = "<tab>"
let g:UltiSnipsJumpBackwardTrigger = "<s-tab>"