init.vim

"==========vim==========
"set encoding=utf-8
"set fileencodings=utf8,gbk,cp936,gb2312,gb18030
"set t_Co=16
"set relativenumber
filetype indent on
filetype on
filetype plugin on
let mapleader = "\<space>"
set autoindent
set autoread
set autowrite
set backspace=2
set cindent
set clipboard+=unnamed
set colorcolumn=80,120
set cursorline
set expandtab
set mouse=a
set nobackup
set nohlsearch
set noswapfile
set noundofile
set number
set scrolloff=3
set shiftwidth=4
set smartindent
set smarttab
set softtabstop=4
set tabstop=4
syntax on
if has("autocmd")
    au BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g'\"" | endif
endif
"==========map==========
"noremap <C-h> <C-w>h
"noremap <C-j> <C-w>j
"noremap <C-k> <C-w>k
"noremap <C-l> <C-w>l
imap <C-h> <Left>
imap <C-j> <Down>
imap <C-k> <Up>
imap <C-l> <Right>
nmap <C-h> 5h
nmap <C-j> 5j
nmap <C-k> 5k
nmap <C-l> 5l
nmap <C-n> :bn<CR>
nmap <C-p> :bp<CR>
nmap <leader>t :!ctags -R --c++-kinds=+px --c-kinds=+px --fields=+iaS --extras=+q .<CR><CR>
" nmap <leader>t :!ctags -R --c++-kinds=+px --c-kinds=+px --fields=+iaS --extras=+r .<CR><CR>
nmap <leader>T :set tags+=~/ctags/
nmap <silent> <leader>F :%py3f /usr/share/clang/clang-format.py<CR>
nnoremap <leader>d :bd<CR>
tnoremap <Esc> <C-\><C-n>
"==========map==========
"==========command==========
"==========command==========
"==========function==========
"==========function==========
source ~/ctags/ctags.vim
"==========vim==========

"==========plug==========
call plug#begin('~/vim-plug')
"Plug 'ap/vim-buftabline'
Plug 'Xuyuanp/nerdtree-git-plugin'
Plug 'bkad/CamelCaseMotion'
Plug 'easymotion/vim-easymotion'
Plug 'joshdick/onedark.vim'
Plug 'junegunn/fzf.vim'
Plug 'neoclide/coc.nvim', {'branch': 'release'}
Plug 'octol/vim-cpp-enhanced-highlight'
Plug 'plasticboy/vim-markdown'
Plug 'preservim/nerdcommenter'
Plug 'preservim/nerdtree'
Plug 'preservim/tagbar'
Plug 'vim-airline/vim-airline'
Plug 'voldikss/vim-floaterm'
call plug#end()

colorscheme onedark

nmap <C-g> :Files<CR>
nmap g] :Tags <C-r><C-w><CR>

let g:camelcasemotion_key = '<leader>'
"map <silent> w <Plug>CamelCaseMotion_w
"map <silent> b <Plug>CamelCaseMotion_b
"map <silent> e <Plug>CamelCaseMotion_e
"map <silent> ge <Plug>CamelCaseMotion_ge
"sunmap w
"sunmap b
"sunmap e
"sunmap ge

nmap <Leader>l <Plug>(easymotion-bd-jk)

nmap <F9> :NERDTreeToggle<CR>
let g:NERDTreeWinSize=28
let g:NERDTreeDirArrowExpandable = '+'
let g:NERDTreeDirArrowCollapsible = '-'

nmap <F10> :TagbarToggle<CR>
let g:tagbar_width=45

nmap <F12> :FloatermToggle<CR>
imap <F12> :FloatermToggle<CR>
tmap <F12> <ESC>:FloatermToggle<CR>
"let g:floaterm_wintype = 'normal'
"let g:floaterm_width = &columns
"let g:floaterm_height = &lines-1

let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#tabline#buffer_idx_mode = 1
let g:airline#extensions#tabline#buffer_idx_format = {
       \ '0': '0 ',
       \ '1': '1 ',
       \ '2': '2 ',
       \ '3': '3 ',
       \ '4': '4 ',
       \ '5': '5 ',
       \ '6': '6 ',
       \ '7': '7 ',
       \ '8': '8 ',
       \ '9': '9 '
       \}
nmap <leader>1 <Plug>AirlineSelectTab1
nmap <leader>2 <Plug>AirlineSelectTab2
nmap <leader>3 <Plug>AirlineSelectTab3
nmap <leader>4 <Plug>AirlineSelectTab4
nmap <leader>5 <Plug>AirlineSelectTab5
nmap <leader>6 <Plug>AirlineSelectTab6
nmap <leader>7 <Plug>AirlineSelectTab7
nmap <leader>8 <Plug>AirlineSelectTab8
nmap <leader>9 <Plug>AirlineSelectTab9
nmap <leader>- <Plug>AirlineSelectPrevTab
nmap <leader>= <Plug>AirlineSelectNextTab
"==========nerdcommenter==========
" Create default mappings
let g:NERDCreateDefaultMappings = 1

" 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
"==========nerdcommenter==========
"==========coc.nvim==========
"autocmd BufWritePre * :Format
autocmd BufWritePre *.go :silent call CocAction('runCommand', 'editor.action.organizeImport')
" TextEdit might fail if hidden is not set.
set hidden

" Some servers have issues with backup files, see #649.
set nobackup
set nowritebackup

" Give more space for displaying messages.
"set cmdheight=2

" Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable
" delays and poor user experience.
set updatetime=300

" Don't pass messages to |ins-completion-menu|.
set shortmess+=c

" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved.
if has("patch-8.1.1564")
  " Recently vim can merge signcolumn and number column into one
  set signcolumn=number
else
  set signcolumn=yes
endif

" Use tab for trigger completion with characters ahead and navigate.
" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
" other plugin before putting this into your config.
inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

" Use <c-space> to trigger completion.
if has('nvim')
  inoremap <silent><expr> <c-space> coc#refresh()
else
  inoremap <silent><expr> <c-@> coc#refresh()
endif

" Make <CR> auto-select the first completion item and notify coc.nvim to
" format on enter, <cr> could be remapped by other vim plugin
inoremap <silent><expr> <cr> pumvisible() ? coc#_select_confirm()
                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

" Use `[g` and `]g` to navigate diagnostics
" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.
nmap <silent> [g <Plug>(coc-diagnostic-prev)
nmap <silent> ]g <Plug>(coc-diagnostic-next)

" GoTo code navigation.
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

" Use K to show documentation in preview window.
nnoremap <silent> K :call <SID>show_documentation()<CR>

function! s:show_documentation()
  if (index(['vim','help'], &filetype) >= 0)
    execute 'h '.expand('<cword>')
  elseif (coc#rpc#ready())
    call CocActionAsync('doHover')
  else
    execute '!' . &keywordprg . " " . expand('<cword>')
  endif
endfunction

" Highlight the symbol and its references when holding the cursor.
autocmd CursorHold * silent call CocActionAsync('highlight')

" Symbol renaming.
nmap <leader>rn <Plug>(coc-rename)

" Formatting selected code.
xmap <leader>f <Plug>(coc-format-selected)
nmap <leader>f <Plug>(coc-format-selected)
nmap <leader><leader>f :Format<CR>

augroup mygroup
  autocmd!
  " Setup formatexpr specified filetype(s).
  autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
  " Update signature help on jump placeholder.
  autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
augroup end

" Applying codeAction to the selected region.
" Example: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap keys for applying codeAction to the current buffer.
nmap <leader>ac  <Plug>(coc-codeaction)
" Apply AutoFix to problem on the current line.
nmap <leader>qf  <Plug>(coc-fix-current)

" Map function and class text objects
" NOTE: Requires 'textDocument.documentSymbol' support from the language server.
xmap if <Plug>(coc-funcobj-i)
omap if <Plug>(coc-funcobj-i)
xmap af <Plug>(coc-funcobj-a)
omap af <Plug>(coc-funcobj-a)
xmap ic <Plug>(coc-classobj-i)
omap ic <Plug>(coc-classobj-i)
xmap ac <Plug>(coc-classobj-a)
omap ac <Plug>(coc-classobj-a)

" Remap <C-f> and <C-b> for scroll float windows/popups.
if has('nvim-0.4.0') || has('patch-8.2.0750')
  nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
  nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
  inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
  inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"
  vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
  vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
endif

" Use CTRL-S for selections ranges.
" Requires 'textDocument/selectionRange' support of language server.
nmap <silent> <C-s> <Plug>(coc-range-select)
xmap <silent> <C-s> <Plug>(coc-range-select)

" Add `:Format` command to format current buffer.
command! -nargs=0 Format :call CocAction('format')

" Add `:Fold` command to fold current buffer.
command! -nargs=? Fold :call     CocAction('fold', <f-args>)

" Add `:OR` command for organize imports of the current buffer.
command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')

" Add (Neo)Vim's native statusline support.
" NOTE: Please see `:h coc-status` for integrations with external plugins that
" provide custom statusline: lightline.vim, vim-airline.
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" Mappings for CoCList
" Show all diagnostics.
nnoremap <silent><nowait> <space>a  :<C-u>CocList diagnostics<cr>
" Manage extensions.
nnoremap <silent><nowait> <space>e  :<C-u>CocList extensions<cr>
" Show commands.
nnoremap <silent><nowait> <space>c  :<C-u>CocList commands<cr>
" Find symbol of current document.
nnoremap <silent><nowait> <space>o  :<C-u>CocList outline<cr>
" Search workspace symbols.
nnoremap <silent><nowait> <space>s  :<C-u>CocList -I symbols<cr>
" Do default action for next item.
nnoremap <silent><nowait> <space>j  :<C-u>CocNext<CR>
" Do default action for previous item.
nnoremap <silent><nowait> <space>k  :<C-u>CocPrev<CR>
" Resume latest coc list.
nnoremap <silent><nowait> <space>p  :<C-u>CocListResume<CR>
"==========coc.nvim==========
"==========plug==========