.vimrc

set nu
colorscheme molokai 
" hight line and column
set cursorline
set cursorcolumn
set shiftwidth=4
set tabstop=4
set expandtab
set hlsearch
set cindent 
set foldenable
set foldmethod=syntax
set foldcolumn=0 
set backspace=indent,eol,start
setlocal foldlevel=1
set mouse=a
set ignorecase
set incsearch
set wildmenu


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'

" ycm
Plugin 'Valloric/YouCompleteMe'
Plugin 'rdnetto/YCM-Generator'

" clang
Plugin 'SirVer/ultisnips'
Plugin 'honza/vim-snippets'

Plugin 'vim-airline'
Plugin 'node'
Plugin 'scrooloose/nerdtree'
Plugin 'Xuyuanp/nerdtree-git-plugin'
Plugin 'godlygeek/tabular'
Plugin 'plasticboy/vim-markdown'
Plugin 'suan/vim-instant-markdown'
Plugin 'majutsushi/tagbar'
Plugin 'jelera/vim-javascript-syntax'
Plugin 'ternjs/tern_for_vim', {'do': 'npm install'}

" slow and take more cpu
Plugin 'artur-shaik/vim-javacomplete2'
" c++ syntax
Plugin 'octol/vim-cpp-enhanced-highlight'
Plugin 'nathanaelkane/vim-indent-guides'
Plugin 'derekwyatt/vim-fswitch'
" indexer
Plugin 'vim-scripts/indexer.tar.gz'
Plugin 'vim-scripts/DfrankUtil'
Plugin 'vim-scripts/vimprj'
" Add maktaba and codefmt to the runtimepath.
" (The latter must be installed before it can be used.)
Plugin 'google/vim-maktaba'
Plugin 'google/vim-codefmt'
" Also add Glaive, which is used to configure codefmt's maktaba flags. See
" `:help :Glaive` for usage.
Plugin 'google/vim-glaive'

Plugin 'scrooloose/nerdcommenter'

" All of your Plugins must be added before the following line
call vundle#end()            " required
filetype plugin indent on    " required


augroup autoformat_settings
  autocmd FileType c,cpp,proto,javascript AutoFormatBuffer clang-format
augroup END

filetype plugin indent on

syntax enable
syntax on

au FileType javascript call JavaScriptFold()


" airline config
set laststatus=2
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#whitespace#enabled = 0
let g:airline#extensions#tabline#left_sep = ' '
let g:airline#extensions#tabline#left_alt_sep = '|'

" markdown config
let g:vim_markdown_folding_disabled=1
let g:vim_markdown_frontmatter=1
let g:vim_markdown_json_frontmatter = 1
let g:vim_markdown_toc_autofit = 1
let g:vim_markdown_fenced_languages = ['java=java', 'c++=cpp', 'viml=vim', 'bash=sh', 'ini=dosini']
let g:vim_markdown_new_list_item_indent = 2
let g:instant_markdown_slow = 1

" https://github.com/justmao945/vim-clang
let g:clang_c_options = '-std=gnu11'
let g:clang_cpp_options = '-std=c++11 -stdlib=libc++'
let g:clang_compilation_database = './build'

" nerd tree
let NERDTreeShowHidden=1
let tern_show_signature_in_pum = 1
let tern_show_argument_hints = 'on_hold'
autocmd FileType javascript nnoremap <leader>d :TernDef<CR>
let g:NERDTreeDirArrowExpandable = '▸'
let g:NERDTreeDirArrowCollapsible = '▾'
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif
let g:NERDTreeIndicatorMapCustom = {
            \ "Modified"  : "✹",
            \ "Staged"    : "✚",
            \ "Untracked" : "✭",
            \ "Renamed"   : "➜",
            \ "Unmerged"  : "═",
            \ "Deleted"   : "✖",
            \ "Dirty"     : "✗",
            \ "Clean"     : "✔︎",
            \ "Unknown"   : "?"
            \ }

"YCM
let g:ycm_global_ycm_extra_conf = '~/.vim/bundle/YouCompleteMe/third_party/ycmd/.ycm_extra_conf.py' 
let g:ycm_goto_buffer_command = 'vertical-split'
" 补全功能在注释中同样有效
let g:ycm_complete_in_comments=1
" 允许 vim 加载 .ycm_extra_conf.py 文件，不再提示
let g:ycm_confirm_extra_conf=0
" 开启 YCM 标签补全引擎
let g:ycm_collect_identifiers_from_tags_files=1
" YCM 集成 OmniCppComplete 补全引擎，设置其快捷键
inoremap <leader>; <C-x><C-o>
" " 补全内容不以分割子窗口形式出现，只显示补全列表
set completeopt-=preview
" 从第一个键入字符就开始罗列匹配项
let g:ycm_min_num_of_chars_for_completion=1
" 禁止缓存匹配项，每次都重新生成匹配项
let g:ycm_cache_omnifunc=0
" 语法关键字补全         
let g:ycm_seed_identifiers_with_syntax=1

" vim intent 
let g:indent_guides_enable_on_vim_startup=1
let g:indent_guides_start_level=2
let g:indent_guides_guide_size=1

" Trigger configuration. Do not use <tab> if you use
" https://github.com/Valloric/YouCompleteMe.
let g:UltiSnipsExpandTrigger="<leader><tab>"
let g:UltiSnipsJumpForwardTrigger="<leader><tab>"
let g:UltiSnipsJumpBackwardTrigger="<leader><s-tab>"
let g:UltiSnipsSnippetDirectories=["mysnippets"]


" If you want :UltiSnipsEdit to split your window.
let g:UltiSnipsEditSplit="vertical"
" 设置 tagbar 子窗口的位置出现在主编辑区的左边 
" let tagbar_left=1 
" 设置标签子窗口的宽度 
let tagbar_width=32 
" tagbar 子窗口中不显示冗余帮助信息 
let g:tagbar_compact=1
" 设置 ctags 对哪些代码标识符生成标签
let g:tagbar_type_cpp = {
            \ 'kinds' : [
            \ 'c:classes:0:1',
            \ 'd:macros:0:1',
            \ 'e:enumerators:0:0', 
            \ 'f:functions:0:1',
            \ 'g:enumeration:0:1',
            \ 'l:local:0:1',
            \ 'm:members:0:1',
            \ 'n:namespaces:0:1',
            \ 'p:functions_prototypes:0:1',
            \ 's:structs:0:1',
            \ 't:typedefs:0:1',
            \ 'u:unions:0:1',
            \ 'v:global:0:1',
            \ 'x:external:0:1'
            \ ],
            \ 'sro'        : '::',
            \ 'kind2scope' : {
            \ 'g' : 'enum',
            \ 'n' : 'namespace',
            \ 'c' : 'class',
            \ 's' : 'struct',
            \ 'u' : 'union'
            \ },
            \ 'scope2kind' : {
            \ 'enum'      : 'g',
            \ 'namespace' : 'n',
            \ 'class'     : 'c',
            \ 'struct'    : 's',
            \ 'union'     : 'u'
            \ }
            \ }

" common nmap
nnoremap <space> @=((foldclosed(line('.')) < 0) ? 'zc' : 'zo')<CR>
nmap <C-t> :TagbarToggle<CR>
nmap <C-n> :NERDTreeToggle<CR>
" imap
inoremap ( ()<LEFT>
inoremap [ []<LEFT>
inoremap { {}<LEFT>

inoremap ) <c-r>=ClosePair(')')<CR>
inoremap ] <c-r>=ClosePair(']')<CR>
inoremap } <c-r>=ClosePair('}')<CR>

inoremap " <c-r>=QuoteDelim('"')<CR>
inoremap ' <c-r>=QuoteDelim("'")<CR>

function ClosePair(char)
    if getline('.')[col('.') - 1] == a:char
        return "\<Right>"
    else
        return a:char
    endif
endf

function QuoteDelim(char)
    let line = getline('.')
    let col = col('.')
    if line[col - 2] == "\\"
        return a:char
    elseif line[col - 1] == a:char
        return "\<Right>"
    else
        return a:char.a:char."\<LEFT>"
    endif
endf

nnoremap <leader>jc :YcmCompleter GoToDeclaration<CR>
nnoremap <leader>jd :YcmCompleter GoToDefinition<CR>
nnoremap <leader>ji :YcmCompleter GoToInclude<CR>

" .cpp <-> .h, plugin vim-fswitch
nmap <silent> <Leader>swi :FSHere<cr>

" Add spaces after comment delimiters by default
let g:NERDSpaceDelims = 1
" Use compact syntax for prettified multi-line comments
let g:NERDCompactSexyComs = 1
" Align line-wise comment delimiters flush left instead of following code indentation
let g:NERDDefaultAlign = 'left'
" Set a language to use its alternate delimiters by default
let g:NERDAltDelims_java = 1
" Add your own custom formats or override the defaults
let g:NERDCustomDelimiters = { 'c': { 'left': '/**','right': '*/' } }
" Allow commenting and inverting empty lines (useful when commenting a region)
let g:NERDCommentEmptyLines = 1
" Enable trimming of trailing whitespace when uncommenting
let g:NERDTrimTrailingWhitespace = 1
" Enable NERDCommenterToggle to check all selected lines is commented or not
let g:NERDToggleCheckAllLines = 1