oh-my-vim/ycm.vim at master · v2hack/oh-my-vim · GitHub

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set completeopt=longest,menu    "让Vim的补全菜单行为与一般IDE一致(参考VimTip1228)
autocmd InsertLeave * if pumvisible() == 0|pclose|endif "离开插入模式后自动关闭预览窗口
inoremap <expr> <CR>       pumvisible() ? "\<C-y>" : "\<CR>"    "回车即选中当前项
"上下左右键的行为 会显示其他信息
inoremap <expr> <Down>     pumvisible() ? "\<C-n>" : "\<Down>"
inoremap <expr> <Up>       pumvisible() ? "\<C-p>" : "\<Up>"
inoremap <expr> <PageDown> pumvisible() ? "\<PageDown>\<C-p>\<C-n>" : "\<PageDown>"
inoremap <expr> <PageUp>   pumvisible() ? "\<PageUp>\<C-p>\<C-n>" : "\<PageUp>"
" 跳转到定义处
"nnoremap <leader>jd :YcmCompleter GoToDefinitionElseDeclaration<CR>
"nnoremap <leader>lo :lopen<CR>    "open locationlist
"nnoremap <leader>lc :lclose<CR>   "close locationlist
inoremap <leader><leader> <C-x><C-o>

let g:ycm_global_ycm_extra_conf = '~/.vim/.ycm_extra_conf.py'
" 不显示开启vim时检查ycm_extra_conf文件的信息
let g:ycm_confirm_extra_conf=0
" 开启基于tag的补全，可以在这之后添加需要的标签路径
let g:ycm_collect_identifiers_from_tags_files=1
"注释和字符串中的文字也会被收入补全
let g:ycm_collect_identifiers_from_comments_and_strings = 0
" 输入第2个字符开始补全
let g:ycm_min_num_of_chars_for_completion=2
" 禁止缓存匹配项,每次都重新生成匹配项
let g:ycm_cache_omnifunc=0
" 开启语义补全
let g:ycm_seed_identifiers_with_syntax=1
"在注释输入中也能补全
let g:ycm_complete_in_comments = 1
"在字符串输入中也能补全
let g:ycm_complete_in_strings = 1
" 设置在下面几种格式的文件上屏蔽ycm
let g:ycm_filetype_blacklist = {
      \ 'tagbar' : 1,
      \ 'nerdtree' : 1,
      \}
"youcompleteme  默认tab  s-tab 和 ultisnips 冲突
let g:ycm_key_list_select_completion = ['<c-n>', '<Down>']
let g:ycm_key_list_previous_completion = ['<c-p>', '<Up>']
" 修改对C函数的补全快捷键，默认是CTRL + space，修改为ALT + ;
let g:ycm_key_invoke_completion = '<M-;>'

" SirVer/ultisnips 代码片断
" Trigger configuration. Do not use <tab> if you use https://github.com/Valloric/YouCompleteMe.
let g:UltiSnipsExpandTrigger="<tab>"
let g:UltiSnipsJumpForwardTrigger="<tab>"
let g:UltiSnipsJumpBackwardTrigger="<s-tab>"
let g:UltiSnipsListSnippets="<c-e>"

" for YouCompleteMe
let g:ycm_error_symbol = 'e>'
let g:ycm_warning_symbol = 'w>'

nnoremap <leader>gl :YcmCompleter GoToDeclaration<CR>
nnoremap <leader>gf :YcmCompleter GoToDefinition<CR>
nnoremap <leader>gg :YcmCompleter GoToDefinitionElseDeclaration<CR>
nmap <F5> :YcmDiags<CR>

let g:syntastic_cpp_include_dirs = ['/usr/include/']
let g:syntastic_cpp_remove_include_errors = 1
let g:syntastic_cpp_check_header = 1
let g:syntastic_cpp_compiler = 'clang++'
let g:syntastic_cpp_compiler_options = '-std=c++11 -stdlib=libstdc++'
let g:syntastic_enable_balloons = 1 "whether to show balloons


" UltiSnips completion function that tries to expand a snippet. If there's no
" snippet for expanding, it checks for completion window and if it's
" shown, selects first element. If there's no completion window it tries to
" jump to next placeholder. If there's no placeholder it just returns TAB key
function! g:UltiSnips_Complete()
    call UltiSnips#ExpandSnippet()
    if g:ulti_expand_res == 0
        if pumvisible()
            return "\<C-n>"
        else
            call UltiSnips#JumpForwards()
            if g:ulti_jump_forwards_res == 0
               return "\<TAB>"
            endif
        endif
    endif
    return ""
endfunction

au BufEnter * exec "inoremap <silent> " . g:UltiSnipsExpandTrigger . " <C-R>=g:UltiSnips_Complete()<cr>"

" Expand snippet or return
let g:ulti_expand_res = 1
function! Ulti_ExpandOrEnter()
    call UltiSnips#ExpandSnippet()
    if g:ulti_expand_res
        return ''
    else
        return "\<return>"
endfunction

" Set <space> as primary trigger
inoremap <return> <C-R>=Ulti_ExpandOrEnter()<CR>