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1 Plug 'neoclide/coc.nvim', {'branch': 'release'}
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2 " https://raw.githubusercontent.com/neoclide/coc.nvim/master/doc/coc-example-config.vim
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3
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4 " May need for Vim (not Neovim) since coc.nvim calculates byte offset by count
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5 " utf-8 byte sequence
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6 set encoding=utf-8
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7 " Some servers have issues with backup files, see #649
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8 set nobackup
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9 set nowritebackup
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10
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11 " Having longer updatetime (default is 4000 ms = 4s) leads to noticeable
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12 " delays and poor user experience
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13 set updatetime=300
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14
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15 " Always show the signcolumn, otherwise it would shift the text each time
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16 " diagnostics appear/become resolved
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17 set signcolumn=yes
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18
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19 " Use tab for trigger completion with characters ahead and navigate
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20 " NOTE: There's always complete item selected by default, you may want to enable
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21 " no select by `"suggest.noselect": true` in your configuration file
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22 " NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
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23 " other plugin before putting this into your config
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24 inoremap <silent><expr> <TAB>
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25 \ coc#pum#visible() ? coc#pum#next(1) :
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26 \ CheckBackspace() ? "\<Tab>" :
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27 \ coc#refresh()
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28 inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"
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29
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30 " Make <CR> to accept selected completion item or notify coc.nvim to format
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31 " <C-g>u breaks current undo, please make your own choice
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32 inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()
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33 \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"
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34
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35 function! CheckBackspace() abort
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36 let col = col('.') - 1
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37 return !col || getline('.')[col - 1] =~# '\s'
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38 endfunction
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39
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40 " Use <c-space> to trigger completion
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41 if has('nvim')
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42 inoremap <silent><expr> <c-space> coc#refresh()
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43 else
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44 inoremap <silent><expr> <c-@> coc#refresh()
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45 endif
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46
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47 " Use `[g` and `]g` to navigate diagnostics
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48 " Use `:CocDiagnostics` to get all diagnostics of current buffer in location list
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49 nmap <silent> [g <Plug>(coc-diagnostic-prev)
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50 nmap <silent> ]g <Plug>(coc-diagnostic-next)
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51
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52 " GoTo code navigation
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53 nmap <silent> gd <Plug>(coc-definition)
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54 nmap <silent> gy <Plug>(coc-type-definition)
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55 nmap <silent> gi <Plug>(coc-implementation)
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56 nmap <silent> gr <Plug>(coc-references)
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57
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58 " Use K to show documentation in preview window
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59 nnoremap <silent> K :call ShowDocumentation()<CR>
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60
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61 function! ShowDocumentation()
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62 if CocAction('hasProvider', 'hover')
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63 call CocActionAsync('doHover')
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64 else
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65 call feedkeys('K', 'in')
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66 endif
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67 endfunction
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68
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69 " Highlight the symbol and its references when holding the cursor
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70 autocmd CursorHold * silent call CocActionAsync('highlight')
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71
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72 " Symbol renaming
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73 nmap <leader>rn <Plug>(coc-rename)
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74
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75 " Formatting selected code
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76 xmap <leader>f <Plug>(coc-format-selected)
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77 nmap <leader>f <Plug>(coc-format-selected)
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78
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79 augroup mygroup
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80 autocmd!
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81 " Setup formatexpr specified filetype(s)
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82 autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
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83 " Update signature help on jump placeholder
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84 autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
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85 augroup end
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86
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87 " Applying code actions to the selected code block
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88 " Example: `<leader>aap` for current paragraph
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89 xmap <leader>a <Plug>(coc-codeaction-selected)
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90 nmap <leader>a <Plug>(coc-codeaction-selected)
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91
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92 " Remap keys for applying code actions at the cursor position
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93 nmap <leader>ac <Plug>(coc-codeaction-cursor)
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94 " Remap keys for apply code actions affect whole buffer
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95 nmap <leader>as <Plug>(coc-codeaction-source)
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96 " Apply the most preferred quickfix action to fix diagnostic on the current line
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97 nmap <leader>qf <Plug>(coc-fix-current)
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98
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99 " Remap keys for applying refactor code actions
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100 nmap <silent> <leader>re <Plug>(coc-codeaction-refactor)
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101 xmap <silent> <leader>r <Plug>(coc-codeaction-refactor-selected)
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102 nmap <silent> <leader>r <Plug>(coc-codeaction-refactor-selected)
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103
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104 " Run the Code Lens action on the current line
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105 nmap <leader>cl <Plug>(coc-codelens-action)
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106
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107 " Map function and class text objects
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108 " NOTE: Requires 'textDocument.documentSymbol' support from the language server
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109 xmap if <Plug>(coc-funcobj-i)
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110 omap if <Plug>(coc-funcobj-i)
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111 xmap af <Plug>(coc-funcobj-a)
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112 omap af <Plug>(coc-funcobj-a)
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113 xmap ic <Plug>(coc-classobj-i)
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114 omap ic <Plug>(coc-classobj-i)
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115 xmap ac <Plug>(coc-classobj-a)
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116 omap ac <Plug>(coc-classobj-a)
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117
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118 " Remap <C-f> and <C-b> to scroll float windows/popups
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119 if has('nvim-0.4.0') || has('patch-8.2.0750')
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120 nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
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121 nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
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122 inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
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123 inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"
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124 vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
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125 vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
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126 endif
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127
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128 " Use CTRL-S for selections ranges
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129 " Requires 'textDocument/selectionRange' support of language server
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130 nmap <silent> <C-s> <Plug>(coc-range-select)
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131 xmap <silent> <C-s> <Plug>(coc-range-select)
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132
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133 " Add `:Format` command to format current buffer
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134 command! -nargs=0 Format :call CocActionAsync('format')
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135
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136 " Add `:Fold` command to fold current buffer
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137 command! -nargs=? Fold :call CocAction('fold', <f-args>)
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138
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139 " Add `:OR` command for organize imports of the current buffer
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140 command! -nargs=0 OR :call CocActionAsync('runCommand', 'editor.action.organizeImport')
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141
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142 " Add (Neo)Vim's native statusline support
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143 " NOTE: Please see `:h coc-status` for integrations with external plugins that
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144 " provide custom statusline: lightline.vim, vim-airline
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145 set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}
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146
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147 " Mappings for CoCList
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148 " Show all diagnostics
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149 nnoremap <silent><nowait> <space>a :<C-u>CocList diagnostics<cr>
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150 " Manage extensions
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151 nnoremap <silent><nowait> <space>e :<C-u>CocList extensions<cr>
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152 " Show commands
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153 nnoremap <silent><nowait> <space>c :<C-u>CocList commands<cr>
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154 " Find symbol of current document
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155 nnoremap <silent><nowait> <space>o :<C-u>CocList outline<cr>
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156 " Search workspace symbols
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157 nnoremap <silent><nowait> <space>s :<C-u>CocList -I symbols<cr>
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158 " Do default action for next item
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159 nnoremap <silent><nowait> <space>j :<C-u>CocNext<CR>
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160 " Do default action for previous item
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161 nnoremap <silent><nowait> <space>k :<C-u>CocPrev<CR>
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162 " Resume latest coc list
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163 nnoremap <silent><nowait> <space>p :<C-u>CocListResume<CR>
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