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coc.txt
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*coc-nvim.txt* LSP support for Vim & Neovim.
Version: 0.0.79
Author: Qiming Zhao <chemzqm at gmail.com>
License: MIT license
CONTENTS *coc-contents*
Introduction |coc-introduction|
Requirements |coc-requirements|
Installation |coc-installation|
Configuration |coc-configuration|
Completion |coc-completion|
Interface |coc-interface|
Key mappings |coc-key-mappings|
Variables |coc-variables|
Functions |coc-functions|
Commands |coc-commands|
Autocmds |coc-autocmds|
Highlights |coc-highlights|
List |coc-list|
List command |coc-list-command|
List command options |coc-list-options|
List configuration |coc-list-configuration|
List mappings |coc-list-mappings|
list sources |coc-list-sources|
Location |coc-list-location|
Extensions |coc-list-extensions|
Diagnostics |coc-list-diagnostics|
Outline |coc-list-outline|
Symbols |coc-list-symbols|
Services |coc-list-services|
Commands |coc-list-commands|
Links |coc-list-links|
Sources |coc-list-completion-sources|
Lists |coc-list-lists|
Dialog |coc-dialog|
Dialog basic |coc-dialog-basic|
Dialog confirm |coc-dialog-confirm|
Dialog input |coc-dialog-input|
Dialog menu |coc-dialog-menu|
Dialog picker |coc-dialog-picker|
Statusline support |coc-status|
Manual |coc-status-manual|
Airline |coc-status-airline|
Lightline |coc-status-lightline|
FAQ |coc-faq|
Changelog |coc-changelog|
==============================================================================
INTRODUCTION *coc-introduction*
Coc.nvim enhances your (Neo)Vim to match the user experience provided by VSCode
through rich plugin ecosystem and Language Server Protocol support.
Some of the features include:~
- APIs that are compatible with both Vim8 and Neovim.
- Loading VSCode-like extensions.
- Configuring coc.nvim and its extensions by using JSON configuration file.
- Configuring Language Servers that implement Language Server Protocol (LSP).
It's designed to have a good integration with other Vim plugins as much as
possible.
Note: This plugin doesn't comes with any support for specific language, you
have to install extensions or configure languageserver for LSP features.
Note: This plugin doesn't change your key-mappings, you have to configure them
yourself.
==============================================================================
REQUIREMENTS *coc-requirements*
Neovim >= 0.3.2 or Vim >= 8.0.1453.
NodeJS https://nodejs.org/ >= 10.12.0
==============================================================================
INSTALLATION *coc-installation*
If you're using [vim-plug](https://github.com/junegunn/vim-plug), add this to
your `init.vim` or `.vimrc`: >
Plug 'neoclide/coc.nvim'
And run: >
:PlugInstall
For other plugin managers, use code from the release branch.
Or use Vim's built-in plugin ecosystem like: >
#!/bin/sh
# for vim8
mkdir -p ~/.vim/pack/coc/start
cd ~/.vim/pack/coc/start
curl --fail -L https://github.com/neoclide/coc.nvim/archive/release.tar.gz|tar xzfv -
# for neovim
mkdir -p ~/.local/share/nvim/site/pack/coc/start
cd ~/.local/share/nvim/site/pack/coc/start
curl --fail -L https://github.com/neoclide/coc.nvim/archive/release.tar.gz|tar xzfv -
==============================================================================
CONFIGURATION *coc-configuration*
Configurations of coc.nvim are stored in file names `coc-settings.json` that
can be opened using |:CocConfig| for user configuration file or
|:CocLocalConfig| for local configuration file.
The location of global configuration can be configured by `g:coc_config_home`.
Configure |b:coc_root_patterns| for project root resolve.
To enable JSON completion and validation support of the settings file, install
the `coc-json` extension by command:
CocInstall coc-json
Check out https://github.com/neoclide/coc.nvim/wiki/Using-the-configuration-file
for more details.
Built-in configurations:~
*coc-config-http*
"http.proxy":~
HTTP proxy URI, used for extensions that send request, default: `""`
"http.proxyStrictSSL":~
Controls whether the proxy server certificate should be verified
against the list of supplied CAs, default: `true`
*coc-config-suggest*
"suggest.enablePreselect":~
Enable preselect feature on Neovim, default: `false`
"suggest.maxPreviewWidth":~
Maximum width of floating preview window, default: `80`
"suggest.labelMaxLength":~
Maximum length of label shown in 'pum', default: `200`
"suggest.enablePreview":~
Add preview option to 'completeopt', default: `false`
"suggest.floatEnable":~
Enable floating window for documentation when possible, default: `true`
"suggest.detailMaxLength":~
Max length of detail that will be shown in popup menu, default: `100`
"suggest.detailField":~
Where to add the detail in complete item when it's less than max
length, default: `"preview"` when floating documentation is enabled.
Valid options: ["abbr", "menu", "preview"]
"suggest.autoTrigger":~
How should completion be triggered, default: `"always"`
Valid options: ["always", "trigger", "none"]
- `always`: trigger suggest on word characters and trigger
characters.
- `trigger`: trigger suggest on trigger characters only.
- `none`: no auto trigger at all.
"suggest.languageSourcePriority":~
Priority of language sources, default: `99`
"suggest.numberSelect":~
Input number to select complete item, it could be wrong when
using '<up>' and '<down>' to select complete item, default: `false`
"suggest.disableKind":~
Remove kind field from Vim complete item, default: `false`
"suggest.disableMenu":~
Remove menu field from Vim complete item, default: `false`
"suggest.snippetIndicator":~
The character used in completion item abbreviation to indicate it
expands as code snippet, default: `"~"`
"suggest.maxCompleteItemCount":~
Maximum number of complete items shown in Vim, default: `50`
"suggest.preferCompleteThanJumpPlaceholder":~
Confirm completion instead of jump to next placeholder when completion
activates, default: `false`
"suggest.fixInsertedWord":~
Inserted word replaces the next one, default: `true`
"suggest.localityBonus":~
Boost suggestions that appear closer to the cursor position,
default: `true`
"suggest.triggerAfterInsertEnter":~
Trigger completion after |InsertEnter|. Requires "suggest.autoTrigger"
to be set, default: `false`
"suggest.timeout":~
Timeout for completion (unit: milliseconds), default: `5000`
"suggest.minTriggerInputLength":~
Number of characters in the current word after which the completion
triggers, default: `1`
"suggest.triggerCompletionWait":~
Delay between typing the trigger character and completion start which
initiates server synchronization, default: `50`
"suggest.echodocSupport":~
Add function signature to `user_data.signature` to support `echodoc.vim`,
default: `false`
"suggest.acceptSuggestionOnCommitCharacter":~
The server provides a set of commit characters: these characters can
trigger completion item acceptance. This also inserts commit character
after the completion item text. Requires `CompleteChanged` event to work,
default: `false`
"suggest.noselect":~
Prevent Vim from selecting the first item on completion start,
default: `true`
"suggest.keepCompleteopt":~
When enabled, 'completeopt' is not overridden. Autocompletion will be
disabled if 'completeopt' doesn't have 'noinsert' and 'noselect', default:
`false`
"suggest.lowPrioritySourceLimit":~
Max items count for source priority lower than `90`.
"suggest.highPrioritySourceLimit":~
Max items count for source priority bigger than or equal to `90`.
"suggest.disableMenuShortcut":~
Disable shortcut of completion source in menu, default: `false`
"suggest.removeDuplicateItems":~
Remove completion items with duplicated word for all sources, snippet
items are excluded, default: `false`
"suggest.defaultSortMethod":~
Default sorting behavior for suggested completion items, default:
`length`
"suggest.invalidInsertCharacters":~
Invalid character for strip valid word when inserting text of complete
item, default: ` ,(,<,{,[,\r,\n`
"suggest.asciiCharactersOnly":~
Suggest ASCII characters only, default: `false`
"suggest.completionItemKindLabels":~
Set custom labels to completion item kinds, default: `{}`.
Example configuration: with https://nerdfonts.com: >
"suggest.completionItemKindLabels": {
"keyword": "\uf1de",
"variable": "\ue79b",
"value": "\uf89f",
"operator": "\u03a8",
"constructor": "\uf0ad",
"function": "\u0192",
"reference": "\ufa46",
"constant": "\uf8fe",
"method": "\uf09a",
"struct": "\ufb44",
"class": "\uf0e8",
"interface": "\uf417",
"text": "\ue612",
"enum": "\uf435",
"enumMember": "\uf02b",
"module": "\uf40d",
"color": "\ue22b",
"property": "\ue624",
"field": "\uf9be",
"unit": "\uf475",
"event": "\ufacd",
"file": "\uf723",
"folder": "\uf114",
"snippet": "\ue60b",
"typeParameter": "\uf728",
"default": "\uf29c"
}
<
*coc-config-diagnostic*
"diagnostic.enable":~
Display diagnostics, default: `true`
"diagnostic.enableSign":~
Enable signs for diagnostics, default: `true`
"diagnostic.enableMessage":~
When to enable show messages of diagnostics.
Valid options: ["always","jump","never"], always means including
cursor hold and after jump to another diagnostic.
default: `"always"`
"diagnostic.enableHighlightLineNumber":~
Enable highlighting line numbers for diagnostics, only works with
neovim and `diagnostic.enableSign` is true.
default: `true`
"diagnostic.locationlistUpdate"~
Update locationlist on diagnostics change, only works with
locationlist opened by :CocDiagnostics command and first window of
associated buffer.
default: `true`
"diagnostic.level":~
Filter diagnostics by severity, default: `"hint"`
Valid options: ["hint", "information", "warning", "error"]
"diagnostic.messageDelay":~
How long to wait (in milliseconds) before displaying the diagnostic
message with echo or float.
Default: `200`
"diagnostic.maxWindowWidth":~
Maximum width of diagnostics floating window, default: `80`
"diagnostic.checkCurrentLine":~
Show all diagnostics of the current line if none of them are at the current
position, default: `false`
"diagnostic.messageTarget":~
Diagnostic message target, default: `"float"`
Valid options: ["echo", "float"]
"diagnostic.refreshOnInsertMode":~
Refresh diagnostics when in insert mode, default: `false`
"diagnostic.displayByAle":~
Use ALE for displaying diagnostics. This will disable coc.nvim for
displaying diagnostics. Restart to make changes take the effect, default:
`false`
"diagnostic.virtualText":~
Use Neovim virtual text to display diagnostics, default: `false`
"diagnostic.virtualTextCurrentLineOnly":~
Only show virtualText diagnostic on current cursor line, default:
`true`
"diagnostic.virtualTextPrefix":~
The prefix added for virtual text diagnostics, default: `" "`
"diagnostic.virtualTextLines":~
The number of non-empty lines from a diagnostic to display, default: `3`
"diagnostic.virtualTextLineSeparator":~
The text that will mark a line end from the diagnostic message,
default: `" \\ "`
"diagnostic.highlightOffset":~
Offset number of buffer.addHighlight, Neovim only, default: `1000`
"diagnostic.signPriority":~
Priority of diagnostic sign, default to `10`, check |sign-priority|.
"diagnostic.errorSign":~
Sign of error diagnostics shown in the 'signcolumn', default: `">>"`
"diagnostic.warningSign":~
Sign of warning diagnostics shown in the 'signcolumn', default: `"⚠"`
"diagnostic.infoSign":~
Sign of info diagnostics shown in the 'signcolumn', default: `">>"`
"diagnostic.hintSign":~
Sign of hint diagnostics shown in the 'signcolumn', default: `">>"`
"diagnostic.maxWindowHeight":~
Maximum height of diagnostics floating window, default: `8`
"diagnostic.filetypeMap":~
A map between buffer filetype and the filetype assigned to diagnostics.
To syntax highlight diagnostics withs their parent buffer type use
`"default": "bufferType"`, default: `{}`
"diagnostic.format":~
Define the diagnostic format.
Available parts: source, code, severity, message
Default: `[%source%code] [%severity] %message`
"diagnostic.separateRelatedInformationAsDiagnostics":~
Separate related information as diagnostics, default: `false`
"signature.enable":~
Enable signature help when trigger character typed. Requires service restart
on change, default: `true`
"signature.maxWindowWidth":~
Max width of signature float window, default: `60`
"signature.triggerSignatureWait":~
Timeout for signature request trigger (milliseconds), default: `500`.
Change to higher value for slow Language Servers.
"signature.target":~
Target of signature help, use `"float"` when possible by default.
Valid options: ["float", "echo"]
"signature.preferShownAbove":~
Show signature help's floating window above cursor when possible. Requires
restart on change, default: `true`
"signature.hideOnTextChange":~
Hide signature help's floating window when text changed. Requires restart
on change, default: `false`
"signature.maxWindowHeight":~
Maximum height of floating window with the signature help, default: `8`
*coc-config-refactor*
"refactor.saveToFile":~
Save to file when write refactor buffer with ':noa wa' command, set to
false if you want save buffer by yourself.
"refactor.openCommand":~
Open command for refactor window, default: `vsplit`
"refactor.beforeContext":~
Print num lines of leading context before each match, default: `3`
"refactor.afterContext":~
Print num lines of trailing context after each match, default: `3`
*coc-config-dialog*
"dialog.maxWidth": ~
Maximum width of dialog window.
"dialog.maxHeight": ~
Maximum height of dialog window.
"dialog.confirmKey":~
Confirm key for confirm selection used by menu and picker, you can
always use <esc> to cancel, default to `<cr>`.
"dialog.pickerButtons":~
Show buttons for picker dialog window/popup, default `true`.
"dialog.pickerButtonShortcut":~
Show shortcut in buttons of picker dialog window/popup, used when
dialog.pickerButtons is true, default `true`.
"dialog.floatHighlight":~
Highlight group for dialog window/popup, default to 'CocFloating'.
"dialog.floatBorderHighlight":~
Highlight group for border of dialog window/popup, default to
'CocFloating'.
*coc-config-notification*
"notification.marginTop": ~
Margin top for notification dialog, default to `1`.
"notification.marginRight": ~
Margin right for notification dialog, default to `1`.
"notification.maxWidth": ~
Maximum content width of notification dialog, default to `60`.
"notification.maxHeight": ~
Maximum content height of notification dialog, default to `10`.
"notification.highlightGroup": ~
Highlight group of notification dialog, default to `CocFloating`.
"notification.minProgressWidth": ~
Minimum width of progress notification, default to `30`.
*coc-config-codelens*
"codeLens.enable":~
Enable `codeLens` feature. Requires Neovim with virtual text feature,
default: `false`.
"codeLens.separator":~
Separator text for `codeLens` in virtual text, default: `"‣"`.
"codeLens.subseparator":~
Subseparator text for multiple `codeLens`es in virtual text, default: `" "`
"workspace.ignoredFiletypes":~
Filetypes to ignore for workspace folder resolution,
default: `["markdown","log","txt","help"]`
Note: This is the filetype after mapping by `g:coc_filetype_map`.
"workspace.bottomUpFiletypes":~
Filetypes that should have workspace folder should resolved from
base directory of file.
"workspace.workspaceFolderCheckCwd":~
Whether the cwd directory should be checked first when resolving
workspace folder of current buffer.
*coc-config-list*
"list.indicator":~
The character used as first character in prompt line, default: `">"`
"list.alignColumns":~
Whether to align lists in columns, default: `false`
"list.height":~
Height of split list window, default: `10`
"list.signOffset":~
Sign offset of list, should be different from other plugins, default: `900`
"list.selectedSignText":~
Sign text for selected lines, default: `"*"`
"list.limitLines":~
Limit lines shown in the list buffer, default: `30000`
"list.maxPreviewHeight":~
Max height for preview window of list, default: `12`
"list.matchHighlightGroup":~
Highlight group used for matched texts in list window.
default: `"Search"`
"list.previewHighlightGroup":~
Highlight group used for highlighting the range in preview window,
default: `"Search"`
"list.nextKeymap":~
Key for selecting next line in the insert mode, default: `"<C-j>"`
"list.previousKeymap":~
Key for selecting previous line in the insert mode, default: `"<C-k>"`
"list.extendedSearchMode": ~
Enable extended search mode which allows multiple search patterns delimited
by spaces, default: `true`
"list.normalMappings":~
Custom key mappings in the normal mode, default: `{}`
"list.insertMappings":~
Custom key mappings in the insert mode, default: `{}`
"list.interactiveDebounceTime":~
Debouce time for input change on interactive mode, default: `100`
"list.previewSplitRight":~
Use vsplit for preview window, default: `false`
"list.source.symbols.excludes":~
Patterns of minimatch for filepath to execlude from symbols list,
default: `[]`
"list.source.outline.ctagsFilestypes":~
Filetypes that should use `ctags` for outline instead of language server,
default: `[]`
"list.source.diagnostics.pathFormat":~
Decide how the filepath is shown in the list.
Valid options: ["full", "short", "filename", "hidden"].
default: `"full"`
"list.source.diagnostics.includeCode":~
Whether to show the diagnostic code in the list.
default: `true`
*coc-config-preferences*
"coc.preferences.enableMessageDialog"~
Enable messages shown in notification dialog, default: `false`
"coc.preferences.maxFileSize":~
Maximum file size in bytes that coc.nvim should handle, default: `'10MB'`
"coc.preferences.promptWorkspaceEdit":~
Prompt confirm from user for workspace edit.
default: `true`
"coc.preferences.useQuickfixForLocations":~
Use Vim's quickfix list for jump locations. Requires restart on change,
default: `false`
"coc.preferences.extensionUpdateCheck":~
Interval for checking extension updates, default: `"daily"`
Valid options: ["daily","weekly","never"]
"coc.preferences.snippetStatusText":~
Text shown in 'statusline' to indicate snippet session is activate.
Check |coc-status| for statusline integration.
Default: `"SNIP"`
"coc.preferences.hoverTarget":~
Target to show hover information, default is floating window when possible.
Valid options: ["preview", "echo", "float"]
"coc.preferences.previewAutoClose":~
Auto close preview window of hover upon cursor move, default: `true`
"coc.preferences.previewMaxHeight":~
Max height of preview window for hover, default: `12`
"coc.preferences.colorSupport":~
Enable color highlight if Language Server support it, default: `true`
"coc.preferences.currentFunctionSymbolAutoUpdate":~
Automatically update the value of `b:coc_current_function` on `CursorHold`
event, default: `false`
"coc.preferences.formatOnSaveFiletypes":~
Filetypes for which formatting triggers after saving, default: `[]`
Note: This is the filetype after mapping by `g:coc_filetype_map`.
"coc.preferences.enableFloatHighlight":~
Enable highlight for floating window, default: `true`
"coc.preferences.rootPatterns":~
Root patterns to resolve `workspaceFolder` from parent folders of opened
files, resolved from up to down, default:
`[".git",".hg",".projections.json"]`
"coc.preferences.watchmanPath":~
Executable path for https://facebook.github.io/watchman/, detected
from $PATH by default, default: `null`
"coc.preferences.jumpCommand":~
Command used for location jump performed for goto definition, goto
references etc, default: `"edit"`
Valid options: ["edit", "split", "vsplit", "tabe", "drop", "tab drop"]
"coc.preferences.messageLevel":~
Message level for filter echoed messages default: `"more"`
Valid options: ["more", "warning", "error"]
"coc.preferences.formatOnType":~
Set to true to enable format on type, default: `false`
"coc.preferences.bracketEnterImprove":~
Improve handling of pressing enter inside brackets (`<> {} [] ()`) by
adding a new empty line below and moving the cursor to it.
Works with |coc#on_enter()|, default: `true`
"coc.preferences.formatOnTypeFiletypes":~
Filetypes that should run format on typing, default: `[]`
Note: takes effect when `coc.preferences.formatOnType` set `true`.
Note: This is the filetype after mapping by `g:coc_filetype_map`.
"coc.preferences.snippets.enable":~
Enables snippets support, default: `true`
"coc.preferences.listOfWorkspaceEdit":~
List should contains changed locations after workspace edit, default
to vim's quickfix, default: `quickfix`
"coc.preferences.highlightTimeout":~
Highlight timeout for buffer in floating window, default: `500`
"coc.preferences.floatActions":~
Set to false to disable float/popup support for actions menu.
Default: `true`
"coc.preferences.promptInput":~
Use prompt buffer in float window for user input.
Default: `true`
"coc.preferences.enableMarkdown":~
Tell the language server that markdown text format is supported,
note that you may have additional escaped characters for markdown
text.
"coc.preferences.silentAutoupdate"~
Not open split window with update status when performing auto update.
*coc-config-cursors*
"cursors.cancelKey":~
Key used for cancel cursors session, default: `<esc>`
"cursors.nextKey":~
Key used for jump to next cursors position. , default: `<C-n>`
"cursors.previousKey":~
Key used for jump to previous cursors position, default: `<C-p>`
*coc-config-npm*
"npm.binPath":~
Command or full path of npm or yarn executable for install/update
extensions, default: `npm`
*coc-config-languageserver*
"languageserver":~
Dictionary of Language Servers, key is the ID of corresponding server,
and value is configuration of languageserver. Default: `{}`
Properties of languageserver configuration:
- "enable": Change to `false` to disable that languageserver.
- "filetypes": Supported filetypes, add * in array for all filetypes.
Note: it's required for start the languageserver, please make sure
your filetype is expected by `:CocCommand document.echoFiletype` command
- "additionalSchemes": Additional uri schemes, default schemes
including file & untitled.
Note: you have to setup vim provide content for custom uri as well.
- "cwd": Working directory used to start languageserver, vim's cwd is
used by default.
- "env": Environment variables for child process.
- "settings": Settings for languageserver, received on server
initialiation.
- "trace.server": Trace level of communication between server and
client that showed with output channel.
- "stdioEncoding": Encoding used for stdio of child process.
- "initializationOptions": Initialization options passed to
languageserver (it's deprecated)
- "rootPatterns": Root patterns used to resolve rootPath from current
file.
- "requireRootPattern": If true, doesn't start server when root
pattern not found.
- "ignoredRootPaths": Absolute root paths that language server should
not use as rootPath, higher priority than rootPatterns.
- "disableDynamicRegister": Disable dynamic registerCapability feature
for this languageserver to avoid duplicated feature regstration.
- "disableWorkspaceFolders": Disable workspaceFolders feature for this
languageserver.
- "disableSnippetCompletion": Disable snippet completion feature for
this languageserver.
- "disableDiagnostics": Disable handle diagnostics for this
languageserver.
- "disableCompletion": Disable completion feature for this
languageserver.
- "formatterPriority": Priority of this languageserver's fomatter.
- "revealOutputChannelOn": Configure message level to show the output
channel buffer.
- "progressOnInitialization": Enable progress report on languageserver
initialize.
Language server start with command:~
Additional fields can be used for command language server:
- "command": Executable program name in $PATH or absolute path of
executable used for start languageserver.
- "args": Command line arguments of command.
- "detached": Detach language server when is true.
- "shell": Use shell for server process, default: `false`
Language server start with module:~
Additional fields can be used forlanguage server started by node
module:
- "module": Absolute filepath of javascript file.
- "args": Extra arguments used on fork javascript module.
- "runtime": Absolute path of node runtime, node runtime of coc.nvim
is used by default.
- "execArgv": Argv passed to node on fork, normally used for
debugging, ex: `["--nolazy", "--inspect-brk=6045"]`
- "transport": Transport kind used by server, could be 'ipc', 'stdio',
'socket' and 'pipe'. 'ipc' is used by default (recommended).
- "transportPort": Port number used when transport is 'socket'.
Language server use initialized socket server:~
- "port": Port number of socket server.
- "host": Host of socket server, default to `127.0.0.1`.
==============================================================================
COMPLETION *coc-completion*
Default behavior of coc.nvim's completion:
- Completion is automatically triggered.
- 'completeopt' is temporarily changed to `noinsert,menuone`.
- Snippet complete item would only be expanded after confirm completion.
Use configurations |coc-config-suggest| to change behavior of completion.
Tips:~
- 'completeopt' used by coc.nvim default to `noselect,menuone`.
- Your 'completeopt' option would be changed and restored during completion,
so you can still use `menu,preview` for Vim's built in completion.
- Snippet expand and additional edit feature of LSP requires confirm
completion to work.
- Floating window is available on Neovim >= 0.4.0.
------------------------------------------------------------------------------
Example key-mappings:~
Map <tab> to trigger completion and navigate to the next item: >
function! s:check_back_space() abort
let col = col('.') - 1
return !col || getline('.')[col - 1] =~ '\s'
endfunction
inoremap <silent><expr> <TAB>
\ pumvisible() ? "\<C-n>" :
\ <SID>check_back_space() ? "\<TAB>" :
\ coc#refresh()