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" 自动补全配置
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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)
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autocmd InsertLeave * if pumvisible() == 0|pclose|endif  "离开插入模式后自动关闭预览窗口
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inoremap <expr> <cr>       pumvisible() ? "\<c-y>" : "\<cr>"  "回车即选中当前项
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"上下左右键的行为 会显示其他信息
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inoremap <expr> <down>     pumvisible() ? "\<c-n>" : "\<down>"
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inoremap <expr> <up>       pumvisible() ? "\<c-p>" : "\<up>"
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inoremap <expr> <pagedown> pumvisible() ? "\<pagedown>\<c-p>\<c-n>" : "\<pagedown>"
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inoremap <expr> <pageup>   pumvisible() ? "\<pageup>\<c-p>\<c-n>" : "\<pageup>"
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"youcompleteme  默认tab  s-tab 和自动补全冲突
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"let g:ycm_key_list_select_completion=['<c-n>']
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let g:ycm_key_list_select_completion = ['<down>']
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"let g:ycm_key_list_previous_completion=['<c-p>']
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let g:ycm_key_list_previous_completion = ['<up>']
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let g:ycm_confirm_extra_conf=0 "关闭加载.ycm_extra_conf.py提示
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let g:ycm_collect_identifiers_from_tags_files=1  " 开启 YCM 基于标签引擎
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let g:ycm_min_num_of_chars_for_completion=2  " 从第2个键入字符就开始罗列匹配项
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let g:ycm_cache_omnifunc=0  " 禁止缓存匹配项,每次都重新生成匹配项
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let g:ycm_seed_identifiers_with_syntax=1  " 语法关键字补全
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nnoremap <f5> :YcmForceCompileAndDiagnostics<cr>  "force recomile with syntastic
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"nnoremap <leader>lo :lopen<cr>  "open locationlist
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"nnoremap <leader>lc :lclose<cr>  "close locationlist
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inoremap <leader><leader> <c-x><c-o>
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"在注释输入中也能补全
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let g:ycm_complete_in_comments = 1
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"在字符串输入中也能补全
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let g:ycm_complete_in_strings = 1
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"注释和字符串中的文字也会被收入补全
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let g:ycm_collect_identifiers_from_comments_and_strings = 0
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nnoremap <leader>jd :YcmCompleter GoToDefinitionElseDeclaration<cr> " 跳转到定义处