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*ale.txt* Plugin to lint and fix files asynchronously
*ale*
ALE - Asynchronous Lint Engine
===============================================================================
CONTENTS *ale-contents*
1. Introduction.........................|ale-introduction|
2. Supported Languages & Tools..........|ale-support|
3. Linting..............................|ale-lint|
3.1 Adding Language Servers...........|ale-lint-language-servers|
3.2 Other Sources.....................|ale-lint-other-sources|
4. Fixing Problems......................|ale-fix|
5. Language Server Protocol Support.....|ale-lsp|
5.1 Completion........................|ale-completion|
5.2 Go To Definition..................|ale-go-to-definition|
5.3 Go To Type Definition.............|ale-go-to-type-definition|
5.4 Find References...................|ale-find-references|
5.5 Hovering..........................|ale-hover|
5.6 Symbol Search.....................|ale-symbol-search|
6. Global Options.......................|ale-options|
6.1 Highlights........................|ale-highlights|
7. Linter/Fixer Options.................|ale-integration-options|
7.1 Options for alex..................|ale-alex-options|
7.2 Options for languagetool..........|ale-languagetool-options|
7.3 Options for write-good............|ale-write-good-options|
7.4 Other Linter/Fixer Options........|ale-other-integration-options|
8. Commands/Keybinds....................|ale-commands|
9. API..................................|ale-api|
10. Special Thanks......................|ale-special-thanks|
11. Contact.............................|ale-contact|
===============================================================================
1. Introduction *ale-introduction*
ALE provides the means to run linters asynchronously in Vim in a variety of
languages and tools. ALE sends the contents of buffers to linter programs
using the |job-control| features available in Vim 8 and NeoVim. For Vim 8,
Vim must be compiled with the |job| and |channel| and |timers| features
as a minimum.
ALE supports the following key features for linting:
1. Running linters when text is changed.
2. Running linters when files are opened.
3. Running linters when files are saved. (When a global flag is set.)
4. Populating the |loclist| with warning and errors.
5. Setting |signs| with warnings and errors for error markers.
6. Using |echo| to show error messages when the cursor moves.
7. Setting syntax highlights for errors.
ALE can fix problems with files with the |ALEFix| command, using the same job
control functionality used for checking for problems. Try using the
|ALEFixSuggest| command for browsing tools that can be used to fix problems
for the current buffer.
If you are interested in contributing to the development of ALE, read the
developer documentation. See |ale-development|
===============================================================================
2. Supported Languages & Tools *ale-support*
ALE supports a wide variety of languages and tools. See |ale-supported-list|
for the full list.
===============================================================================
3. Linting *ale-lint*
ALE's primary focus is on checking for problems with your code with various
programs via some Vim code for integrating with those programs, referred to
as 'linters.' ALE supports a wide array of programs for linting by default,
but additional programs can be added easily by defining files in |runtimepath|
with the filename pattern `ale_linters/<filetype>/<filename>.vim`. For more
information on defining new linters, see the extensive documentation
for |ale#linter#Define()|.
Without any configuration, ALE will attempt to check all of the code for every
file you open in Vim with all available tools by default. To see what ALE
is doing, and what options have been set, try using the |:ALEInfo| command.
Most of the linters ALE runs will check the Vim buffer you are editing instead
of the file on disk. This allows you to check your code for errors before you
have even saved your changes. ALE will check your code in the following
circumstances, which can be configured with the associated options.
* When you modify a buffer. - |g:ale_lint_on_text_changed|
* On leaving insert mode. - |g:ale_lint_on_insert_leave|
* When you open a new or modified buffer. - |g:ale_lint_on_enter|
* When you save a buffer. - |g:ale_lint_on_save|
* When the filetype changes for a buffer. - |g:ale_lint_on_filetype_changed|
* If ALE is used to check code manually. - |:ALELint|
*ale-lint-settings-on-startup*
It is worth reading the documentation for every option. You should configure
which events ALE will use before ALE is loaded, so it can optimize which
autocmd commands to run. You can force autocmd commands to be reloaded with
`:ALEDisable | ALEEnable`
This also applies to the autocmd commands used for |g:ale_echo_cursor|.
*ale-lint-file-linters*
Some programs must be run against files which have been saved to disk, and
simply do not support reading temporary files or stdin, either of which are
required for ALE to be able to check for errors as you type. The programs
which behave this way are documented in the lists and tables of supported
programs. ALE will only lint files with these programs in the following
circumstances.
* When you open a new or modified buffer. - |g:ale_lint_on_enter|
* When you save a buffer. - |g:ale_lint_on_save|
* When the filetype changes for a buffer. - |g:ale_lint_on_filetype_changed|
* If ALE is used to check code manually. - |:ALELint|
ALE will report problems with your code in the following ways, listed with
their relevant options.
* By updating loclist. (On by default) - |g:ale_set_loclist|
* By updating quickfix. (Off by default) - |g:ale_set_quickfix|
* By setting error highlights. - |g:ale_set_highlights|
* By creating signs in the sign column. - |g:ale_set_signs|
* By echoing messages based on your cursor. - |g:ale_echo_cursor|
* By inline text based on your cursor. - |g:ale_virtualtext_cursor|
* By displaying the preview based on your cursor. - |g:ale_cursor_detail|
* By showing balloons for your mouse cursor - |g:ale_set_balloons|
Please consult the documentation for each option, which can reveal some other
ways of tweaking the behaviour of each way of displaying problems. You can
disable or enable whichever options you prefer.
Most settings can be configured for each buffer. (|b:| instead of |g:|),
including disabling ALE for certain buffers with |b:ale_enabled|. The
|g:ale_pattern_options| setting can be used to configure files differently
based on regular expressions for filenames. For configuring entire projects,
the buffer-local options can be used with external plugins for reading Vim
project configuration files. Buffer-local settings can also be used in
ftplugin files for different filetypes.
ALE offers several options for controlling which linters are run.
* Selecting linters to run. - |g:ale_linters|
* Aliasing filetypes for linters - |g:ale_linter_aliases|
* Only running linters you asked for. - |g:ale_linters_explicit|
* Disabling only a subset of linters. - |g:ale_linters_ignore|
* Disabling LSP linters and `tsserver`. - |g:ale_disable_lsp|
-------------------------------------------------------------------------------
3.1 Adding Language Servers *ale-lint-language-servers*
ALE comes with many default configurations for language servers, so they can
be detected and run automatically. ALE can connect to other language servers
by defining a new linter for a filetype. New linters can be defined in |vimrc|,
in plugin files, or `ale_linters` directories in |runtimepath|.
See |ale-linter-loading-behavior| for more information on loading linters.
A minimal configuration for a language server linter might look so. >
call ale#linter#Define('filetype_here', {
\ 'name': 'any_name_you_want',
\ 'lsp': 'stdio',
\ 'executable': '/path/to/executable',
\ 'command': '%e run',
\ 'project_root': '/path/to/root_of_project',
\})
<
For language servers that use a TCP socket connection, you should define the
address to connect to instead. >
call ale#linter#Define('filetype_here', {
\ 'name': 'any_name_you_want',
\ 'lsp': 'socket',
\ 'address': 'servername:1234',
\ 'project_root': '/path/to/root_of_project',
\})
<
Most of the options for a language server can be replaced with a |Funcref|
for a function accepting a buffer number for dynamically computing values
such as the executable path, the project path, the server address, etc,
most of which can also be determined based on executing some other
asynchronous task. See |ale#command#Run()| for computing linter options
based on asynchronous results.
See |ale#linter#Define()| for a detailed explanation of all of the options
for configuring linters.
-------------------------------------------------------------------------------
3.2 Other Sources *ale-lint-other-sources*
Problems for a buffer can be taken from other sources and rendered by ALE.
This allows ALE to be used in combination with other plugins which also want
to display any problems they might find with a buffer. ALE's API includes the
following components for making this possible.
* |ale#other_source#StartChecking()| - Tell ALE that a buffer is being checked.
* |ale#other_source#ShowResults()| - Show results from another source.
* |ALEWantResults| - A signal for when ALE wants results.
Other resources can provide results for ALE to display at any time, following
ALE's loclist format. (See |ale-loclist-format|) For example: >
" Tell ALE to show some results.
" This function can be called at any time.
call ale#other_source#ShowResults(bufnr(''), 'some-linter-name', [
\ {'text': 'Something went wrong', 'lnum': 13},
\])
<
Other sources should use a unique name for identifying themselves. A single
linter name can be used for all problems from another source, or a series of
unique linter names can be used. Results can be cleared for that source by
providing an empty List.
|ale#other_source#StartChecking()| should be called whenever another source
starts checking a buffer, so other tools can know that a buffer is being
checked by some plugin. The |ALEWantResults| autocmd event can be used to
start checking a buffer for problems every time that ALE does. When
|ALEWantResults| is signaled, |g:ale_want_results_buffer| will be set to the
number of the buffer that ALE wants to check.
|ale#other_source#StartChecking()| should be called synchronously, and other
sources should perform their checks on a buffer in the background
asynchronously, so they don't interrupt editing.
A plugin might integrate its own checks with ALE like so: >
augroup SomeGroupName
autocmd!
autocmd User ALEWantResults call Hook(g:ale_want_results_buffer)
augroup END
function! DoBackgroundWork(buffer) abort
" Start some work in the background here.
" ...
" Then call WorkDone(a:buffer, results)
endfunction
function! Hook(buffer) abort
" Tell ALE we're going to check this buffer.
call ale#other_source#StartChecking(a:buffer, 'some-name')
call DoBackgroundWork(a:buffer)
endfunction
function! WorkDone(buffer, results) abort
" Send results to ALE after they have been collected.
call ale#other_source#ShowResults(buffer, 'some-name', a:results)
endfunction
<
===============================================================================
4. Fixing Problems *ale-fix*
ALE can fix problems with files with the |ALEFix| command. |ALEFix|
accepts names of fixers to be applied as arguments. Alternatively,
when no arguments are provided, the variable |g:ale_fixers| will be
read for getting a |List| of commands for filetypes, split on `.`, and
the functions named in |g:ale_fixers| will be executed for fixing the
errors.
The |ALEFixSuggest| command can be used to suggest tools that be used to
fix problems for the current buffer.
The values for `g:ale_fixers` can be a list of |String|, |Funcref|, or
|lambda| values. String values must either name a function, or a short name
for a function set in the ALE fixer registry.
Each function for fixing errors must accept either one argument `(buffer)` or
two arguments `(buffer, lines)`, representing the buffer being fixed and the
lines to fix. The functions must return either `0`, for changing nothing, a
|List| for new lines to set, a |Dictionary| for describing a command to be
run in the background, or the result of |ale#command#Run()|.
Functions receiving a variable number of arguments will not receive the second
argument `lines`. Functions should name two arguments if the `lines` argument
is desired. This is required to avoid unnecessary copying of the lines of
the buffers being checked.
When a |Dictionary| is returned for an |ALEFix| callback, the following keys
are supported for running the commands.
`command` A |String| for the command to run. This key is required.
When `%t` is included in a command string, a temporary
file will be created, containing the lines from the file
after previous adjustment have been done.
`read_temporary_file` When set to `1`, ALE will read the contents of the
temporary file created for `%t`. This option can be used
for commands which need to modify some file on disk in
order to fix files.
`process_with` An optional callback for post-processing.
The callback must accept two arguments,
`(buffer, output)`, which can be used for converting
the output from a command into lines to replace the
buffer's contents with.
A |List| of |String|s must be returned.
`read_buffer` An optional key for disabling reading the buffer.
When set to `0`, ALE will not pipe the buffer's data
into the command via stdin. This option is ignored and
the buffer is not read when `read_temporary_file` is
`1`.
This option defaults to `1`.
*ale-fix-configuration*
Synchronous functions and asynchronous jobs will be run in a sequence for
fixing files, and can be combined. For example:
>
let g:ale_fixers = {
\ 'javascript': [
\ 'DoSomething',
\ 'eslint',
\ {buffer, lines -> filter(lines, 'v:val !=~ ''^\s*//''')},
\ ],
\}
ALEFix
<
The above example will call a function called `DoSomething` which could act
upon some lines immediately, then run `eslint` from the ALE registry, and
then call a lambda function which will remove every single line comment
from the file.
For buffer-local settings, such as in |g:ale_pattern_options| or in ftplugin
files, a |List| may be used for configuring the fixers instead.
>
" Same as the above, only a List can be used instead of a Dictionary.
let b:ale_fixers = [
\ 'DoSomething',
\ 'eslint',
\ {buffer, lines -> filter(lines, 'v:val !=~ ''^\s*//''')},
\]
ALEFix
<
For convenience, a plug mapping is defined for |ALEFix|, so you can set up a
keybind easily for fixing files. >
" Bind F8 to fixing problems with ALE
nmap <F8> <Plug>(ale_fix)
<
Files can be fixed automatically with the following options, which are all off
by default.
|g:ale_fix_on_save| - Fix files when they are saved.
Fixers can be disabled on save with |g:ale_fix_on_save_ignore|. They will
still be run when you manually run |ALEFix|.
===============================================================================
5. Language Server Protocol Support *ale-lsp*
ALE offers some support for integrating with Language Server Protocol (LSP)
servers. LSP linters can be used in combination with any other linter, and
will automatically connect to LSP servers when needed. ALE also supports
`tsserver` for TypeScript, which uses a different but very similar protocol.
If you want to use another plugin for LSP features and tsserver, you can use
the |g:ale_disable_lsp| setting to disable ALE's own LSP integrations, or
ignore particular linters with |g:ale_linters_ignore|.
-------------------------------------------------------------------------------
5.1 Completion *ale-completion*
ALE offers support for automatic completion of code while you type.
Completion is only supported while at least one LSP linter is enabled. ALE
will only suggest symbols provided by the LSP servers.
*ale-deoplete-integration*
ALE integrates with Deoplete for offering automatic completion data. ALE's
completion source for Deoplete is named `'ale'`, and should enabled
automatically if Deoplete is enabled and configured correctly. Deoplete
integration should not be combined with ALE's own implementation.
*ale-asyncomplete-integration*
ALE additionally integrates with asyncomplete.vim for offering automatic
completion data. ALE's asyncomplete source requires registration and should
use the defaults provided by the|asyncomplete#sources#ale#get_source_options| function >
" Use ALE's function for asyncomplete defaults
au User asyncomplete_setup call asyncomplete#register_source(asyncomplete#sources#ale#get_source_options({
\ 'priority': 10, " Provide your own overrides here
\ }))
>
ALE also offers its own completion implementation, which does not require any
other plugins. Suggestions will be made while you type after completion is
enabled. ALE's own completion implementation can be enabled by setting
|g:ale_completion_enabled| to `1`. This setting must be set to `1` before ALE
is loaded. The delay for completion can be configured with
|g:ale_completion_delay|. This setting should not be enabled if you wish to
use ALE as a completion source for other plugins.
ALE provides an 'omnifunc' function |ale#completion#OmniFunc| for triggering
completion manually with CTRL-X CTRL-O. |i_CTRL-X_CTRL-O| >
" Use ALE's function for omnicompletion.
set omnifunc=ale#completion#OmniFunc
<
ALE will only suggest so many possible matches for completion. The maximum
number of items can be controlled with |g:ale_completion_max_suggestions|.
If you don't like some of the suggestions you see, you can filter them out
with |g:ale_completion_excluded_words| or |b:ale_completion_excluded_words|.
The |ALEComplete| command can be used to show completion suggestions manually,
even when |g:ale_completion_enabled| is set to `0`. For manually requesting
completion information with Deoplete, consult Deoplete's documentation.
When working with TypeScript files, ALE by can support automatic imports
from external modules. This behavior can be enabled by setting the
|g:ale_completion_tsserver_autoimport| variable to `1`.
*ale-completion-completeopt-bug*
ALE Automatic completion implementation replaces |completeopt| before opening
the omnicomplete menu with <C-x><C-o>. In some versions of Vim, the value set
for the option will not be respected. If you experience issues with Vim
automatically inserting text while you type, set the following option in
vimrc, and your issues should go away. >
set completeopt=menu,menuone,preview,noselect,noinsert
<
Or alternatively, if you want to show documentation in popups: >
set completeopt=menu,menuone,popup,noselect,noinsert
<
*ale-symbols*
ALE provides a set of basic completion symbols. If you want to replace those
symbols with others, you can set the variable |g:ale_completion_symbols| with
a mapping of the type of completion to the symbol or other string that you
would like to use. An example here shows the available options for symbols >
let g:ale_completion_symbols = {
\ 'text': '',
\ 'method': '',
\ 'function': '',
\ 'constructor': '',
\ 'field': '',
\ 'variable': '',
\ 'class': '',
\ 'interface': '',
\ 'module': '',
\ 'property': '',
\ 'unit': 'unit',
\ 'value': 'val',
\ 'enum': '',
\ 'keyword': 'keyword',
\ 'snippet': '',
\ 'color': 'color',
\ 'file': '',
\ 'reference': 'ref',
\ 'folder': '',
\ 'enum member': '',
\ 'constant': '',
\ 'struct': '',
\ 'event': 'event',
\ 'operator': '',
\ 'type_parameter': 'type param',
\ '<default>': 'v'
\ }
<
-------------------------------------------------------------------------------
5.2 Go To Definition *ale-go-to-definition*
ALE supports jumping to the files and locations where symbols are defined
through any enabled LSP linters. The locations ALE will jump to depend on the
information returned by LSP servers. The |ALEGoToDefinition| command will jump
to the definition of symbols under the cursor. See the documentation for the
command for configuring how the location will be displayed.
ALE will update Vim's |tagstack| automatically unless |g:ale_update_tagstack| is
set to `0`.
-------------------------------------------------------------------------------
5.3 Go To Type Definition *ale-go-to-type-definition*
ALE supports jumping to the files and locations where symbols' types are
defined through any enabled LSP linters. The locations ALE will jump to depend
on the information returned by LSP servers. The |ALEGoToTypeDefinition|
command will jump to the definition of symbols under the cursor. See the
documentation for the command for configuring how the location will be
displayed.
-------------------------------------------------------------------------------
5.4 Find References *ale-find-references*
ALE supports finding references for symbols though any enabled LSP linters.
ALE will display a preview window showing the places where a symbol is
referenced in a codebase when a command is run. The following commands are
supported:
|ALEFindReferences| - Find references for the word under the cursor.
Options:
`-relative` Show file paths in the results relative to the working dir
-------------------------------------------------------------------------------
5.5 Hovering *ale-hover*
ALE supports "hover" information for printing brief information about symbols
at the cursor taken from LSP linters. The following commands are supported:
|ALEHover| - Print information about the symbol at the cursor.
If |g:ale_set_balloons| is set to `1` and your version of Vim supports the
|balloon_show()| function, then "hover" information also show up when you move
the mouse over a symbol in a buffer. Diagnostic information will take priority
over hover information for balloons. If a line contains a problem, that
problem will be displayed in a balloon instead of hover information.
Hover information can be displayed in the preview window instead by setting
|g:ale_hover_to_preview| to `1`.
For Vim 8.1+ terminals, mouse hovering is disabled by default. Enabling
|balloonexpr| commands in terminals can cause scrolling issues in terminals,
so ALE will not attempt to show balloons unless |g:ale_set_balloons| is set to
`1` before ALE is loaded.
For enabling mouse support in terminals, you may have to change your mouse
settings. For example: >
" Example mouse settings.
" You will need to try different settings, depending on your terminal.
set mouse=a
set ttymouse=xterm
<
Documentation for symbols at the cursor can be retrieved using the
|ALEDocumentation| command. This command is only available for `tsserver`.
-------------------------------------------------------------------------------
5.6 Symbol Search *ale-symbol-search*
ALE supports searching for workspace symbols via LSP linters. The following
commands are supported:
|ALESymbolSearch| - Search for symbols in the workspace.
Options:
`-relative` Show file paths in the results relative to the working dir
===============================================================================
6. Global Options *ale-options*
g:airline#extensions#ale#enabled *g:airline#extensions#ale#enabled*
Type: |Number|
Default: `1`
Enables or disables the |airline|'s native extension for ale, which displays
warnings and errors in the status line, prefixed by
|airline#extensions#ale#error_symbol| and
|airline#extensions#ale#warning_symbol|.
g:ale_cache_executable_check_failures *g:ale_cache_executable_check_failures*
Type: |Number|
Default: undefined
When set to `1`, ALE will cache failing executable checks for linters. By
default, only executable checks which succeed will be cached.
When this option is set to `1`, Vim will have to be restarted after new
executables are installed for ALE to be able to run linters for those
executables.
g:ale_change_sign_column_color *g:ale_change_sign_column_color*
Type: |Number|
Default: `0`
When set to `1`, this option will set different highlights for the sign
column itself when ALE reports problems with a file. This option can be
combined with |g:ale_sign_column_always|.
ALE uses the following highlight groups for highlighting the sign column:
`ALESignColumnWithErrors` - Links to `error` by default.
`ALESignColumnWithoutErrors` - Uses the value for `SignColumn` by default.
The sign column color can only be changed globally in Vim. The sign column
might produce unexpected results if editing different files in split
windows.
g:ale_close_preview_on_insert *g:ale_close_preview_on_insert*
Type: |Number|
Default: `0`
When this option is set to `1`, ALE's |preview-window| will be automatically
closed upon entering Insert Mode. This option can be used in combination
with |g:ale_cursor_detail| for automatically displaying the preview window
on problem lines, and automatically closing it again when editing text.
This setting must be set to `1` before ALE is loaded for this behavior
to be enabled. See |ale-lint-settings-on-startup|.
g:ale_command_wrapper *g:ale_command_wrapper*
*b:ale_command_wrapper*
Type: |String|
Default: `''`
An option for wrapping all commands that ALE runs, for linters, fixers,
and LSP commands. This option can be set globally, or for specific buffers.
This option can be used to apply nice to all commands. For example: >
" Prefix all commands with nice.
let g:ale_command_wrapper = 'nice -n5'
<
Use the |ALEInfo| command to view the commands that are run. All of the
arguments for commands will be put on the end of the wrapped command by
default. A `%*` marker can be used to spread the arguments in the wrapped
command. >
" Has the same effect as the above.
let g:ale_command_wrapper = 'nice -n5 %*'
<
For passing all of the arguments for a command as one argument to a wrapper,
`%@` can be used instead. >
" Will result in say: /bin/bash -c 'other-wrapper -c "some command" -x'
let g:ale_command_wrapper = 'other-wrapper -c %@ -x'
<
For commands including `&&` or `;`, only the last command in the list will
be passed to the wrapper. `&&` is most commonly used in ALE to change the
working directory before running a command.
g:ale_completion_delay *g:ale_completion_delay*
Type: |Number|
Default: `100`
The number of milliseconds before ALE will send a request to a language
server for completions after you have finished typing.
See |ale-completion|
g:ale_completion_enabled *g:ale_completion_enabled*
*b:ale_completion_enabled*
Type: |Number|
Default: `0`
When this option is set to `1`, completion support will be enabled.
This setting must be set to `1` before ALE is loaded for this behavior
to be enabled.
This setting should not be enabled if you wish to use ALE as a completion
source for other completion plugins.
A buffer-local version of this setting `b:ale_completion_enabled` can be set
to `0` to disable ALE's automatic completion support for a single buffer.
ALE's completion support must be enabled globally to be enabled locally.
See |ale-completion|
g:ale_completion_tsserver_autoimport *g:ale_completion_tsserver_autoimport*
Type: Number
Default: `0`
When this option is set to `0`, ALE will not try to automatically import
completion results from external modules. It can be enabled by setting it
to `1`.
g:ale_completion_excluded_words *g:ale_completion_excluded_words*
*b:ale_completion_excluded_words*
Type: |List|
Default: `[]`
This option can be set to a list of |String| values for "words" to exclude
from completion results, as in the words for |complete-items|. The strings
will be matched exactly in a case-sensitive manner. (|==#|)
This setting can be configured in ftplugin files with buffer variables, so
that different lists can be used for different filetypes. For example: >
" In ~/.vim/ftplugin/typescript.vim
" Don't suggest `it` or `describe` so we can use snippets for those words.
let b:ale_completion_excluded_words = ['it', 'describe']
<
g:ale_completion_symbols *g:ale_completion_symbols*
Type: |Dictionary|
A mapping from completion types to symbols for completions. See
|ale-symbols| for more information.
By default, this mapping only uses built in Vim completion kinds, but it can
be updated to use any unicode character for the completion kind. For
example: >
let g:ale_completion_symbols = {
\ 'text': '',
\ 'method': '',
\ 'function': '',
\ 'constructor': '',
\ 'field': '',
\ 'variable': '',
\ 'class': '',
\ 'interface': '',
\ 'module': '',
\ 'property': '',
\ 'unit': 'v',
\ 'value': 'v',
\ 'enum': 't',
\ 'keyword': 'v',
\ 'snippet': 'v',
\ 'color': 'v',
\ 'file': 'v',
\ 'reference': 'v',
\ 'folder': 'v',
\ 'enum_member': 'm',
\ 'constant': 'm',
\ 'struct': 't',
\ 'event': 'v',
\ 'operator': 'f',
\ 'type_parameter': 'p',
\ '<default>': 'v'
\ })
<
g:ale_completion_max_suggestions *g:ale_completion_max_suggestions*
Type: |Number|
Default: `50`
The maximum number of items ALE will suggest in completion menus for
automatic completion.
Setting this number higher will require more processing time, and may
suggest too much noise. Setting this number lower will require less
processing time, but some suggestions will not be included, so you might not
be able to see the suggestions you want.
Adjust this option as needed, depending on the complexity of your codebase
and your available processing power.
g:ale_cursor_detail *g:ale_cursor_detail*
Type: |Number|
Default: `0`
When this option is set to `1`, ALE's |preview-window| will be automatically
opened when the cursor moves onto lines with problems. ALE will search for
problems using the same logic that |g:ale_echo_cursor| uses. The preview
window will be closed automatically when you move away from the line.
Messages are only displayed after a short delay. See |g:ale_echo_delay|.
The preview window is opened without stealing focus, which means your cursor
will stay in the same buffer as it currently is.
The preview window can be closed automatically upon entering Insert mode
by setting |g:ale_close_preview_on_insert| to `1`.
Either this setting or |g:ale_echo_cursor| must be set to `1` before ALE is
loaded for messages to be displayed. See |ale-lint-settings-on-startup|.
g:ale_default_navigation *g:ale_default_navigation*
*b:ale_default_navigation*
Type: |String|
Default: `'buffer'`
The default method for navigating away from the current buffer to another
buffer, such as for |ALEFindReferences:|, or |ALEGoToDefinition|.
g:ale_disable_lsp *g:ale_disable_lsp*
*b:ale_disable_lsp*
Type: |Number|
Default: `0`
When this option is set to `1`, ALE ignores all linters powered by LSP,
and also `tsserver`.
Please see also |ale-lsp|.
g:ale_echo_cursor *g:ale_echo_cursor*
Type: |Number|
Default: `1`
When this option is set to `1`, a truncated message will be echoed when a
cursor is near a warning or error. ALE will attempt to find the warning or
error at a column nearest to the cursor when the cursor is resting on a line
which contains a warning or error. This option can be set to `0` to disable
this behavior.
Messages are only displayed after a short delay. See |g:ale_echo_delay|.
The format of the message can be customized with |g:ale_echo_msg_format|.
Either this setting or |g:ale_cursor_detail| must be set to `1` before ALE
is loaded for messages to be displayed. See |ale-lint-settings-on-startup|.
g:ale_echo_delay *g:ale_echo_delay*
*b:ale_echo_delay*
Type: |Number|
Default: `10`
Given any integer, this option controls the number of milliseconds before
ALE will echo or preview a message for a problem near the cursor.
The value can be increased to decrease the amount of processing ALE will do
for files displaying a large number of problems.
g:ale_echo_msg_error_str *g:ale_echo_msg_error_str*
Type: |String|
Default: `'Error'`
The string used for `%severity%` for errors. See |g:ale_echo_msg_format|
g:ale_echo_msg_format *g:ale_echo_msg_format*
*b:ale_echo_msg_format*
Type: |String|
Default: `'%code: %%s'`
This variable defines a message format for echoed messages. The following
sequences of characters will be replaced.
`%s` - replaced with the text for the problem
`%...code...% `- replaced with the error code
`%linter%` - replaced with the name of the linter
`%severity%` - replaced with the severity of the problem
The strings for `%severity%` can be configured with the following options.
|g:ale_echo_msg_error_str| - Defaults to `'Error'`
|g:ale_echo_msg_info_str| - Defaults to `'Info'`
|g:ale_echo_msg_warning_str| - Defaults to `'Warning'`
`%code%` is replaced with the error code, and replaced with an empty string
when there is no error code. Any extra characters between the percent signs
will be printed when an error code is present. For example, a message like
`(error code): message` will be printed for `'%(code): %%s'` and simply the
message will be printed when there is no code.
|g:ale_echo_cursor| needs to be set to 1 for messages to be displayed.
The echo message format can also be configured separately for each buffer,
so different formats can be used for different languages. (Say in ftplugin
files.)
g:ale_echo_msg_info_str *g:ale_echo_msg_info_str*
Type: |String|
Default: `'Info'`
The string used for `%severity%` for info. See |g:ale_echo_msg_format|
g:ale_echo_msg_log_str *g:ale_echo_msg_log_str*
Type: |String|
Default: `'Log'`
The string used for `%severity%` for log, used only for handling LSP show
message requests. See |g:ale_lsp_show_message_format|
g:ale_echo_msg_warning_str *g:ale_echo_msg_warning_str*
Type: |String|
Default: `'Warning'`
The string used for `%severity%` for warnings. See |g:ale_echo_msg_format|
g:ale_enabled *g:ale_enabled*
*b:ale_enabled*
Type: |Number|
Default: `1`
When set to `0`, this option will completely disable ALE, such that no
error checking will be performed, etc. ALE can be toggled on and off with
the |ALEToggle| command, which changes this option.
ALE can be disabled in each buffer by setting `let b:ale_enabled = 0`
Disabling ALE based on filename patterns can be accomplished by setting
a regular expression for |g:ale_pattern_options|. For example: >
" Disable linting for all minified JS files.
let g:ale_pattern_options = {'\.min.js$': {'ale_enabled': 0}}
<
See |g:ale_pattern_options| for more information on that option.
g:ale_exclude_highlights *g:ale_exclude_highlights*
*b:ale_exclude_highlights*
Type: |List|
Default: `[]`
A list of regular expressions for matching against highlight messages to
remove. For example: >
" Do not highlight messages matching strings like these.
let b:ale_exclude_highlights = ['line too long', 'foo.*bar']
<
See also: |g:ale_set_highlights|
g:ale_fixers *g:ale_fixers*
*b:ale_fixers*
Type: |Dictionary|
Default: `{}`
A mapping from filetypes to |List| values for functions for fixing errors.
See |ale-fix| for more information.
This variable can be overridden with variables in each buffer.
`b:ale_fixers` can be set to a |List| of callbacks instead, which can be
more convenient.
A special `'*'` key be used as a wildcard filetype for configuring fixers
for every other type of file. For example: >
" Fix Python files with 'bar'.
" Don't fix 'html' files.
" Fix everything else with 'foo'.
let g:ale_fixers = {'python': ['bar'], 'html': [], '*': ['foo']}
<
g:ale_fix_on_save *g:ale_fix_on_save*
*b:ale_fix_on_save*
Type: |Number|
Default: `0`
When set to 1, ALE will fix files when they are saved.
If |g:ale_lint_on_save| is set to 1, files will be checked with linters
after files are fixed, only when the buffer is open, or re-opened. Changes
to the file will be saved to the file on disk.
Files will not be fixed on `:wq`, so you should check your code before
closing a buffer.
Fixing files can be disabled or enabled for individual buffers by setting
`b:ale_fix_on_save` to `0` or `1`.
Some fixers can be excluded from being run automatically when you save files
with the |g:ale_fix_on_save_ignore| setting.
g:ale_fix_on_save_ignore *g:ale_fix_on_save_ignore*
*b:ale_fix_on_save_ignore*
Type: |Dictionary| or |List|
Default: `{}`
Given a |Dictionary| mapping filetypes to |Lists| of fixers to ignore, or
just a |List| of fixers to ignore, exclude those fixers from being run
automatically when files are saved.
You can disable some fixers in your ftplugin file: >
" Disable fixers 'b' and 'c' when fixing on safe for this buffer.
let b:ale_fix_on_save_ignore = ['b', 'c']
" Alternatively, define ignore lists for different filetypes.
let b:ale_fix_on_save_ignore = {'foo': ['b'], 'bar': ['c']}
<
You can disable some fixers globally per filetype like so: >
let g:ale_fixers = {'foo': ['a', 'b'], 'bar': ['c', 'd']}
let g:ale_fix_on_save = 1
" For filetype `foo.bar`, only fixers 'b' and 'd' will be run on save.
let g:ale_fix_on_save_ignore = {'foo': ['a'], 'bar': ['c']}
" Alternatively, disable these fixers on save for all filetypes.
let g:ale_fix_on_save_ignore = ['a', 'c']
<
You can ignore fixers based on matching |Funcref| values too: >
let g:AddBar = {buffer, lines -> lines + ['bar']}
let g:ale_fixers = {'foo': g:AddBar}
" The lambda fixer will be ignored, as it will be found in the ignore list.
let g:ale_fix_on_save_ignore = [g:AddBar]
<
g:ale_history_enabled *g:ale_history_enabled*
Type: |Number|
Default: `1`
When set to `1`, ALE will remember the last few commands which were run
for every buffer which is open. This information can be viewed with the
|ALEInfo| command. The size of the buffer can be controlled with the
|g:ale_max_buffer_history_size| option.
This option can be disabled if storing a command history is not desired.
g:ale_history_log_output *g:ale_history_log_output*
Type: |Number|
Default: `1`
When set to `1`, ALE will store the output of commands which have completed
successfully in the command history, and the output will be displayed when
using |ALEInfo|.
|g:ale_history_enabled| must be set to `1` for this output to be stored or
printed.
Some memory will be consumed by this option. It is very useful for figuring
out what went wrong with linters, and for bug reports. Turn this option off
if you want to save on some memory usage.
g:ale_hover_to_preview *g:ale_hover_to_preview*
*b:ale_hover_to_preview*
Type: |Number|
Default: `0`
If set to `1`, hover messages will be displayed in the preview window,
instead of in balloons or the message line.
g:ale_keep_list_window_open *g:ale_keep_list_window_open*
*b:ale_keep_list_window_open*
Type: |Number|
Default: `0`
When set to `1`, this option will keep the loclist or quickfix windows event
after all warnings/errors have been removed for files. By default the
loclist or quickfix windows will be closed automatically when there are no
warnings or errors.
See |g:ale_open_list|
g:ale_list_window_size *g:ale_list_window_size*
*b:ale_list_window_size*
Type: |Number|
Default: `10`
This number configures the number of lines to set for the height of windows
opened automatically for ALE problems. The default of `10` matches the Vim
default height.
See |g:ale_open_list| for information on automatically opening windows
for quickfix or the loclist.
g:ale_lint_delay *g:ale_lint_delay*
Type: |Number|
Default: `200`
This variable controls the milliseconds delay after which the linters will
be run after text is changed. This option is only meaningful with the
|g:ale_lint_on_text_changed| variable set to `always`, `insert`, or `normal`.
g:ale_lint_on_enter *g:ale_lint_on_enter*
Type: |Number|
Default: `1`
When this option is set to `1`, the |BufWinEnter| event will be used to
apply linters when buffers are first opened. If this is not desired, this
variable can be set to `0` in your vimrc file to disable this behavior.
The |FileChangedShellPost| and |BufEnter| events will be used to check if
files have been changed outside of Vim. If a file is changed outside of
Vim, it will be checked when it is next opened.
You should set this setting once before ALE is loaded, and restart Vim if
you want to change your preferences. See |ale-lint-settings-on-startup|.
g:ale_lint_on_filetype_changed *g:ale_lint_on_filetype_changed*
Type: |Number|
Default: `1`
This option will cause ALE to run when the filetype for a file is changed
after a buffer has first been loaded. A short delay will be used before
linting will be done, so the filetype can be changed quickly several times
in a row, but resulting in only one lint cycle.
You should set this setting once before ALE is loaded, and restart Vim if
you want to change your preferences. See |ale-lint-settings-on-startup|.
g:ale_lint_on_save *g:ale_lint_on_save*
Type: |Number|
Default: `1`
This option will make ALE run the linters whenever a file is saved when it
it set to `1` in your vimrc file. This option can be used in combination
with the |g:ale_lint_on_enter| and |g:ale_lint_on_text_changed| options to
make ALE only check files after that have been saved, if that is what is
desired.
g:ale_lint_on_text_changed *g:ale_lint_on_text_changed*
Type: |String|
Default: `'normal'`
This option controls how ALE will check your files as you make changes.
The following values can be used.
`'always'`, `'1'`, or `1` - Check buffers on |TextChanged| or |TextChangedI|.
`'normal'` - Check buffers only on |TextChanged|.
`'insert'` - Check buffers only on |TextChangedI|.
`'never'`, `'0'`, or `0` - Never check buffers on changes.
ALE will check buffers after a short delay, with a timer which resets on
each change. The delay can be configured by adjusting the |g:ale_lint_delay|
variable.
*ale-linting-interrupts-mapping*
Due to a bug in Vim, ALE can interrupt mappings with pending key presses,
per |timeoutlen|. If this happens, follow the advice for enabling
|g:ale_lint_on_insert_leave| below, and set this option to `'normal'`, or
disable it entirely.
You should set this setting once before ALE is loaded, and restart Vim if
you want to change your preferences. See |ale-lint-settings-on-startup|.
g:ale_lint_on_insert_leave *g:ale_lint_on_insert_leave*
*b:ale_lint_on_insert_leave*
Type: |Number|
Default: `1`
When set to `1` in your vimrc file, this option will cause ALE to run
linters when you leave insert mode.
ALE will not lint files when you escape insert mode with |CTRL-C| by
default. You can make ALE lint files with this option when you use |CTRL-C|
with the following mapping. >
" Make using Ctrl+C do the same as Escape, to trigger autocmd commands
inoremap <C-c> <Esc>
<
A buffer-local version of this setting `b:ale_lint_on_insert_leave` can be
set to `0` to disable linting when leaving insert mode. The setting must
be enabled globally to be enabled locally.
You should set this setting once before ALE is loaded, and restart Vim if
you want to change your preferences. See |ale-lint-settings-on-startup|.
g:ale_linter_aliases *g:ale_linter_aliases*
*b:ale_linter_aliases*
Type: |Dictionary|
Default: `{}`
The |g:ale_linter_aliases| option can be used to set aliases from one
filetype to another. A given filetype can be mapped to use the linters
run for another given filetype.
This |Dictionary| will be merged with a default dictionary containing the
following values: >
{
\ 'Dockerfile': 'dockerfile',
\ 'csh': 'sh',
\ 'javascriptreact': ['javascript', 'jsx'],
\ 'plaintex': 'tex',
\ 'rmarkdown': 'r',
\ 'rmd': 'r',
\ 'systemverilog': 'verilog',
\ 'typescriptreact': ['typescript', 'tsx'],
\ 'verilog_systemverilog': ['verilog_systemverilog', 'verilog'],
\ 'vimwiki': 'markdown',
\ 'vue': ['vue', 'javascript'],
\ 'xsd': ['xsd', 'xml'],
\ 'xslt': ['xslt', 'xml'],
\ 'zsh': 'sh',
\}
<
For example, if you wish to map a new filetype `'foobar'` to run the `'php'`
linters, you could set the following: >
let g:ale_linter_aliases = {'foobar': 'php'}
<
When combined with the |g:ale_linters| option, the original filetype
(`'foobar'`) will be used for determining which linters to run,
not the aliased type (`'php'`). This allows an aliased type to run a
different set of linters from the type it is being mapped to.
Passing a list of filetypes is also supported. Say you want to lint
javascript and css embedded in HTML (using linters that support that).
You could alias `html` like so:
`let g:ale_linter_aliases = {'html': ['html', 'javascript', 'css']}`
Note that `html` itself was included as an alias. That is because aliases
will override the original linters for the aliased filetype.
Linter aliases can be configured in each buffer with buffer-local variables.
ALE will first look for aliases for filetypes in the `b:ale_linter_aliases`
variable, then `g:ale_linter_aliases`, and then a default Dictionary.
`b:ale_linter_aliases` can be set to a |List| or a |String|, to tell ALE to
load the linters for specific filetypes for a given buffer. >
let b:ale_linter_aliases = ['html', 'javascript', 'css']
" OR, Alias a filetype to only a single filetype with a String.
let b:ale_linter_aliases = 'javascript'
<
No linters will be loaded when the buffer's filetype is empty.
g:ale_linters *g:ale_linters*
*b:ale_linters*
Type: |Dictionary|
Default: `{}`
The |g:ale_linters| option sets a |Dictionary| mapping a filetype to a
|List| of linter programs to be run when checking particular filetypes.
This |Dictionary| will be merged with a default dictionary containing the
following values: >
{
\ 'csh': ['shell'],
\ 'elixir': ['credo', 'dialyxir', 'dogma'],
\ 'go': ['gofmt', 'golint', 'go vet'],
\ 'hack': ['hack'],
\ 'help': [],
\ 'perl': ['perlcritic'],
\ 'perl6': [],
\ 'python': ['flake8', 'mypy', 'pylint'],
\ 'rust': ['cargo'],
\ 'spec': [],
\ 'text': [],
\ 'vue': ['eslint', 'vls'],
\ 'zsh': ['shell'],
\}
<
This option can be used to enable only a particular set of linters for a
file. For example, you can enable only `eslint` for JavaScript files: >
let g:ale_linters = {'javascript': ['eslint']}
<
If you want to disable all linters for a particular filetype, you can pass
an empty list of linters as the value: >
let g:ale_linters = {'javascript': []}
<
All linters will be run for unspecified filetypes. All available linters can
be enabled explicitly for a given filetype by passing the string `'all'`,
instead of a List. >
let g:ale_linters = {'c': 'all'}
<
Linters can be configured in each buffer with buffer-local variables. ALE
will first look for linters for filetypes in the `b:ale_linters` variable,
then `g:ale_linters`, and then the default Dictionary mentioned above.
`b:ale_linters` can be set to a List, or the string `'all'`. When linters
for two different filetypes share the same name, the first linter loaded
will be used. Any ambiguity can be resolved by using a Dictionary specifying
which linter to run for which filetype instead. >
" Use ESLint for the buffer if the filetype includes 'javascript'.
let b:ale_linters = {'javascript': ['eslint'], 'html': ['tidy']}
" Use a List for the same setting. This will work in most cases.
let b:ale_linters = ['eslint', 'tidy']
" Disable all linters for the buffer.
let b:ale_linters = []
" Explicitly enable all available linters for the filetype.
let b:ale_linters = 'all'
<
ALE can be configured to disable all linters unless otherwise specified with
`g:ale_enabled` or `b:ale_enabled` with the option |g:ale_linters_explicit|.
g:ale_linters_explicit *g:ale_linters_explicit*
Type: |Number|
Default: `0`
When set to `1`, only the linters from |g:ale_linters| and |b:ale_linters|
will be enabled. The default behavior for ALE is to enable as many linters
as possible, unless otherwise specified.
g:ale_linters_ignore *g:ale_linters_ignore*
*b:ale_linters_ignore*
Type: |Dictionary| or |List|
Default: `{}`
Linters to ignore. Commands for ignored linters will not be run, and
diagnostics for LSP linters will be ignored. (See |ale-lsp|)
This setting can be set to a |Dictionary| mapping filetypes to linter names,
just like |g:ale_linters|, to list linters to ignore. Ignore lists will be
applied after everything else. >
" Select flake8 and pylint, and ignore pylint, so only flake8 is run.
let g:ale_linters = {'python': ['flake8', 'pylint']}
let g:ale_linters_ignore = {'python': ['pylint']}
<
This setting can be set to simply a |List| of linter names, which is
especially more convenient when using the setting in ftplugin files for
particular buffers. >
" The same as above, in a ftplugin/python.vim.
let b:ale_linters = ['flake8', 'pylint']
let b:ale_linters_ignore = ['pylint']
<
g:ale_list_vertical *g:ale_list_vertical*
*b:ale_list_vertical*
Type: |Number|
Default: `0`
When set to `1`, this will cause ALE to open any windows (loclist or
quickfix) vertically instead of horizontally (|vert| |lopen|) or (|vert|
|copen|)
g:ale_loclist_msg_format *g:ale_loclist_msg_format*
*b:ale_loclist_msg_format*
Type: |String|
Default: `g:ale_echo_msg_format`
This option is the same as |g:ale_echo_msg_format|, but for formatting the
message used for the loclist and the quickfix list.
The strings for configuring `%severity%` are also used for this option.
g:ale_lsp_show_message_format *g:ale_lsp_show_message_format*
Type: |String|
Default: `'%severity%:%linter%: %s'`
This variable defines the format that messages received from an LSP will
have when echoed. The following sequences of characters will be replaced.
`%s` - replaced with the message text
`%linter%` - replaced with the name of the linter
`%severity%` - replaced with the severity of the message
The strings for `%severity%` levels "error", "info" and "warning" are shared
with |g:ale_echo_msg_format|. Severity "log" is unique to
|g:ale_lsp_show_message_format| and it can be configured via
|g:ale_echo_msg_log_str| - Defaults to `'Log'`
Please note that |g:ale_lsp_show_message_format| *can not* be configured
separately for each buffer like |g:ale_echo_msg_format| can.
g:ale_lsp_show_message_severity *g:ale_lsp_show_message_severity*
Type: |String|
Default: `'error'`
This variable defines the minimum severity level an LSP message needs to be
displayed. Messages below this level are discarded; please note that
messages with `Log` severity level are always discarded.
Possible values follow the LSP spec `MessageType` definition:
`'error'` - Displays only errors.
`'warning'` - Displays errors and warnings.
`'information'` - Displays errors, warnings and infos
`'log'` - Same as `'information'`
`'disabled'` - Doesn't display any information at all.
g:ale_lsp_root *g:ale_lsp_root*
*b:ale_lsp_root*
Type: |Dictionary| or |String|
Default: {}
This option is used to determine the project root for the LSP linter. If the
value is a |Dictionary|, it maps a linter to either a string containing the
project root or a |Funcref| to call to look up the root. The funcref is
provided the buffer number as its argument.
The buffer-specific variable may additionally be a string containing the
project root itself.
If neither variable yields a result, a linter-specific function is invoked to
detect a project root. If this, too, yields no result, the linter is disabled.
g:ale_max_buffer_history_size *g:ale_max_buffer_history_size*
Type: |Number|
Default: `20`
This setting controls the maximum number of commands which will be stored in
the command history used for |ALEInfo|. Command history will be rotated in
a FIFO manner. If set to a number <= 0, then the history will be
continuously set to an empty |List|.
History can be disabled completely with |g:ale_history_enabled|.
g:ale_max_signs *g:ale_max_signs*
*b:ale_max_signs*
Type: |Number|
Default: `-1`
When set to any positive integer, ALE will not render any more than the
given number of signs for any one buffer.
When set to `0`, no signs will be set, but sign processing will still be
done, so existing signs can be removed.
When set to any other value, no limit will be imposed on the number of signs
set.
For disabling sign processing, see |g:ale_set_signs|.
g:ale_maximum_file_size *g:ale_maximum_file_size*
*b:ale_maximum_file_size*
Type: |Number|
Default: undefined
A maximum file size in bytes for ALE to check. If set to any positive
number, ALE will skip checking files larger than the given size.
g:ale_open_list *g:ale_open_list*
*b:ale_open_list*
Type: |Number| or |String|
Default: `0`
When set to `1`, this will cause ALE to automatically open a window for the
loclist (|lopen|) or for the quickfix list instead if |g:ale_set_quickfix|
is `1`. (|copen|)
When set to `'on_save'`, ALE will only open the loclist after buffers have
been saved. The list will be opened some time after buffers are saved and
any linter for a buffer returns results.
The window will be kept open until all warnings or errors are cleared,
including those not set by ALE, unless |g:ale_keep_list_window_open| is set
to `1`, in which case the window will be kept open when no problems are
found.
The window size can be configured with |g:ale_list_window_size|.
Windows can be opened vertically with |g:ale_list_vertical|.
If you want to close the loclist window automatically when the buffer is
closed, you can set up the following |autocmd| command: >
augroup CloseLoclistWindowGroup
autocmd!
autocmd QuitPre * if empty(&buftype) | lclose | endif
augroup END
<
g:ale_pattern_options *g:ale_pattern_options*
Type: |Dictionary|
Default: undefined
This option maps regular expression patterns to |Dictionary| values for
buffer variables. This option can be set to automatically configure
different settings for different files. For example: >
" Use just ESLint for linting and fixing files which end in '.foo.js'
let g:ale_pattern_options = {
\ '\.foo\.js$': {
\ 'ale_linters': ['eslint'],
\ 'ale_fixers': ['eslint'],
\ },
\}
<
See |b:ale_linters| and |b:ale_fixers| for information for those options.
Filenames are matched with |match()|, and patterns depend on the |magic|
setting, unless prefixed with the special escape sequences like `'\v'`, etc.
The patterns can match any part of a filename. The absolute path of the
filename will be used for matching, taken from `expand('%:p')`.
The options for every match for the filename will be applied, with the
pattern keys sorted in alphabetical order. Options for `'zebra'` will
override the options for `'alpha'` for a filename `alpha-zebra`.
g:ale_pattern_options_enabled *g:ale_pattern_options_enabled*
Type: |Number|
Default: undefined
This option can be used for disabling pattern options. If set to `0`, ALE
will not set buffer variables per |g:ale_pattern_options|.
g:ale_rename_tsserver_find_in_comments *g:ale_rename_tsserver_find_in_comments*
Type: |Number|
Default: `0`
If enabled, this option will tell tsserver to find and replace text in
comments when calling |ALERename|. It can be enabled by settings the value
to `1`.
g:ale_rename_tsserver_find_in_strings *g:ale_rename_tsserver_find_in_strings*
Type: |Number|
Default: `0`
If enabled, this option will tell tsserver to find and replace text in
strings when calling |ALERename|. It can be enabled by settings the value to
`1`.
g:ale_set_balloons *g:ale_set_balloons*
*b:ale_set_balloons*
Type: |Number|
Default: `has('balloon_eval') && has('gui_running')`
When this option is set to `1`, balloon messages will be displayed for
problems or hover information if available.
Problems nearest to the line the mouse cursor is over will be displayed. If
there are no problems to show, and one of the linters is an LSP linter
supporting "Hover" information, per |ale-hover|, then brief information
about the symbol under the cursor will be displayed in a balloon.
Balloons can be enabled for terminal versions of Vim that support balloons,
but some versions of Vim will produce strange mouse behavior when balloons
are enabled. To configure balloons for your terminal, you should first
configure your |ttymouse| setting, and then consider setting
`g:ale_set_balloons` to `1` before ALE is loaded.
`b:ale_set_balloons` can be set to `0` to disable balloons for a buffer.
Balloons cannot be enabled for a specific buffer when not initially enabled
globally.
Balloons will not be shown when |g:ale_enabled| or |b:ale_enabled| is `0`.
g:ale_set_balloons_legacy_echo *g:ale_set_balloons_legacy_echo*
*b:ale_set_balloons_legacy_echo*
Type: |Number|
Default: undefined
If set to `1`, moving your mouse over documents in Vim will make ALE ask
`tsserver` or `LSP` servers for information about the symbol where the mouse
cursor is, and print that information into Vim's echo line. This is an
option for supporting older versions of Vim which do not properly support
balloons in an asynchronous manner.
If your version of Vim supports the |balloon_show| function, then this
option does nothing meaningful.
g:ale_set_highlights *g:ale_set_highlights*
Type: |Number|
Default: `has('syntax')`
When this option is set to `1`, highlights will be set for problems.
ALE will use the following highlight groups for problems:
|ALEError| - Items with `'type': 'E'`
|ALEWarning| - Items with `'type': 'W'`
|ALEInfo.| - Items with `'type': 'I'`
|ALEStyleError| - Items with `'type': 'E'` and `'sub_type': 'style'`
|ALEStyleWarning| - Items with `'type': 'W'` and `'sub_type': 'style'`
When |g:ale_set_signs| is set to `0`, the following highlights for entire
lines will be set.
|ALEErrorLine| - All items with `'type': 'E'`
|ALEWarningLine| - All items with `'type': 'W'`
|ALEInfoLine| - All items with `'type': 'I'`
Vim can only highlight the characters up to the last column in a buffer for
match highlights, whereas the line highlights when signs are enabled will
run to the edge of the screen.
Highlights can be excluded with the |g:ale_exclude_highlights| option.
g:ale_set_loclist *g:ale_set_loclist*
Type: |Number|
Default: `1`
When this option is set to `1`, the |loclist| will be populated with any
warnings and errors which are found by ALE. This feature can be used to
implement jumping between errors through typical use of |lnext| and |lprev|.
g:ale_set_quickfix *g:ale_set_quickfix*
Type: |Number|
Default: `0`
When this option is set to `1`, the |quickfix| list will be populated with
any problems which are found by ALE, instead of the |loclist|. The loclist
will never be populated when this option is on.
Problems from every buffer ALE has checked will be included in the quickfix
list, which can be checked with |:copen|. Problems will be de-duplicated.
This feature should not be used in combination with tools for searching for
matches and commands like |:cfdo|, as ALE will replace the quickfix list
pretty frequently. If you wish to use such tools, you should populate the
loclist instead.
g:ale_set_signs *g:ale_set_signs*
Type: |Number|
Default: `has('signs')`
When this option is set to `1`, the |sign| column will be populated with
signs marking where problems appear in the file.
ALE will use the following highlight groups for problems:
|ALEErrorSign| - Items with `'type': 'E'`
|ALEWarningSign| - Items with `'type': 'W'`
|ALEInfoSign| - Items with `'type': 'I'`
|ALEStyleErrorSign| - Items with `'type': 'E'` and `'sub_type': 'style'`
|ALEStyleWarningSign| - Items with `'type': 'W'` and `'sub_type': 'style'`
In addition to the style of the signs, the style of lines where signs appear
can be configured with the following highlights:
|ALEErrorLine| - All items with `'type': 'E'`
|ALEWarningLine| - All items with `'type': 'W'`
|ALEInfoLine| - All items with `'type': 'I'`
With Neovim 0.3.2 or higher, ALE can use the `numhl` option to highlight the
'number' column. It uses the following highlight groups.
|ALEErrorSignLineNr| - Items with `'type': 'E'`
|ALEWarningSignLineNr| - Items with `'type': 'W'`
|ALEInfoSignLineNr| - Items with `'type': 'I'`
|ALEStyleErrorSignLineNr| - Items with `'type': 'E'` and `'sub_type': 'style'`
|ALEStyleWarningSignLineNr| - Items with `'type': 'W'` and `'sub_type': 'style'`
To enable line number highlighting |g:ale_sign_highlight_linenrs| must be
set to `1` before ALE is loaded.
The markers for the highlights can be customized with the following options:
|g:ale_sign_error|
|g:ale_sign_warning|
|g:ale_sign_info|
|g:ale_sign_style_error|
|g:ale_sign_style_warning|
When multiple problems exist on the same line, the signs will take
precedence in the order above, from highest to lowest.
To limit the number of signs ALE will set, see |g:ale_max_signs|.
g:ale_sign_priority *g:ale_sign_priority*
Type: |Number|
Default: `30`
From Neovim 0.4.0 and Vim 8.1, ALE can set sign priority to all signs. The
larger this value is, the higher priority ALE signs have over other plugin
signs. See |sign-priority| for further details on how priority works.
g:ale_shell *g:ale_shell*
Type: |String|
Default: not set
Override the shell used by ALE for executing commands. ALE uses 'shell' by
default, but falls back in `/bin/sh` if the default shell looks like `fish`
or `pwsh`, which are not compatible with all of the commands run by ALE. The
shell specified with this option will be used even if it might not work in
all cases.
For Windows, ALE uses `cmd` when this option isn't set. Setting this option
will apply shell escaping to the command string, even on Windows.
NOTE: Consider setting |g:ale_shell_arguments| if this option is defined.
g:ale_shell_arguments *g:ale_shell_arguments*
Type: |String|
Default: not set
This option specifies the arguments to use for executing a command with a
custom shell, per |g:ale_shell|. If this option is not set, 'shellcmdflag'
will be used instead.
g:ale_sign_column_always *g:ale_sign_column_always*
Type: |Number|
Default: `0`
By default, the sign gutter will disappear when all warnings and errors have
been fixed for a file. When this option is set to `1`, the sign column will
remain open. This can be preferable if you don't want the text in your file
to move around as you edit a file.
g:ale_sign_error *g:ale_sign_error*
Type: |String|
Default: `'>>'`
The sign for errors in the sign gutter.
g:ale_sign_info *g:ale_sign_info*
Type: |String|
Default: `g:ale_sign_warning`
The sign for "info" markers in the sign gutter.
g:ale_sign_style_error *g:ale_sign_style_error*
Type: |String|
Default: `g:ale_sign_error`
The sign for style errors in the sign gutter.
g:ale_sign_style_warning *g:ale_sign_style_warning*
Type: |String|
Default: `g:ale_sign_warning`
The sign for style warnings in the sign gutter.
g:ale_sign_offset *g:ale_sign_offset*
Type: |Number|
Default: `1000000`
This variable controls offset from which numeric IDs will be generated for
new signs. Signs cannot share the same ID values, so when two Vim plugins
set signs at the same time, the IDs have to be configured such that they do
not conflict with one another. If the IDs used by ALE are found to conflict
with some other plugin, this offset value can be changed, and hopefully both
plugins will work together. See |sign-place| for more information on how
signs are set.
g:ale_sign_warning *g:ale_sign_warning*
Type: |String|
Default: `'--'`
The sign for warnings in the sign gutter.
g:ale_sign_highlight_linenrs *g:ale_sign_highlight_linenrs*
Type: |Number|
Default: `0`
When set to `1`, this option enables highlighting problems on the 'number'
column in Vim versions that support `numhl` highlights. This option must be
configured before ALE is loaded.
g:ale_update_tagstack *g:ale_update_tagstack*
*b:ale_update_tagstack*
Type: |Number|
Default: `1`
This option can be set to disable updating Vim's |tagstack| automatically.
g:ale_type_map *g:ale_type_map*
*b:ale_type_map*
Type: |Dictionary|
Default: `{}`
This option can be set re-map problem types for linters. Each key in the
|Dictionary| should be the name of a linter, and each value must be a
|Dictionary| mapping problem types from one type to another. The following
types are supported:
`'E'` - `{'type': 'E'}`
`'ES'` - `{'type': 'E', 'sub_type': 'style'}`
`'W'` - `{'type': 'W'}`
`'WS'` - `{'type': 'W', 'sub_type': 'style'}`
`'I'` - `{'type': 'I'}`
For example, if you want to turn flake8 errors into warnings, you can write
the following: >
let g:ale_type_map = {'flake8': {'ES': 'WS', 'E': 'W'}}
<
If you wanted to turn style errors and warnings into regular errors and
warnings, you can write the following: >
let g:ale_type_map = {'flake8': {'ES': 'E', 'WS': 'W'}}
<
Type maps can be set per-buffer with `b:ale_type_map`.
g:ale_use_global_executables *g:ale_use_global_executables*
Type: |Number|
Default: not set
This option can be set to change the default for all `_use_global` options.
This option must be set before ALE is loaded, preferably in a vimrc file.
See |ale-integrations-local-executables| for more information on those
options.
g:ale_virtualtext_cursor *g:ale_virtualtext_cursor*
Type: |Number|
Default: `0`
This option only has any effect in NeoVim.
When this option is set to `1`, a message will be shown when a cursor is
near a warning or error. ALE will attempt to find the warning or error at a
column nearest to the cursor when the cursor is resting on a line which
contains a warning or error. This option can be set to `0` to disable this
behavior.
Messages are only displayed after a short delay. See |g:ale_virtualtext_delay|.
Messages can be prefixed prefixed with a string. See |g:ale_virtualtext_prefix|.
ALE will use the following highlight groups for problems:
|ALEVirtualTextError| - Items with `'type': 'E'`
|ALEVirtualTextWarning| - Items with `'type': 'W'`
|ALEVirtualTextInfo| - Items with `'type': 'I'`
|ALEVirtualTextStyleError| - Items with `'type': 'E'` and `'sub_type': 'style'`
|ALEVirtualTextStyleWarning| - Items with `'type': 'W'` and `'sub_type': 'style'`
g:ale_virtualtext_delay *g:ale_virtualtext_delay*
*b:ale_virtualtext_delay*
Type: |Number|
Default: `10`
Given any integer, this option controls the number of milliseconds before
ALE will show a message for a problem near the cursor.
The value can be increased to decrease the amount of processing ALE will do
for files displaying a large number of problems.
g:ale_virtualtext_prefix *g:ale_virtualtext_prefix*
Type: |String|
Default: `'> '`
Prefix to be used with |g:ale_virtualtext_cursor|.
g:ale_virtualenv_dir_names *g:ale_virtualenv_dir_names*
*b:ale_virtualenv_dir_names*
Type: |List|
Default: `['.env', '.venv', 'env', 've-py3', 've', 'virtualenv', 'venv']`
A list of directory names to be used when searching upwards from Python
files to discover virtulenv directories with.
For directory named `'foo'`, ALE will search for `'foo/bin/activate'`
(`foo\Scripts\activate\` on Windows) in all directories on and above the
directory containing the Python file to find virtualenv paths.
g:ale_warn_about_trailing_blank_lines *g:ale_warn_about_trailing_blank_lines*
*b:ale_warn_about_trailing_blank_lines*
Type: |Number|
Default: `1`
When this option is set to `1`, warnings about trailing blank lines will be
shown.
This option behaves similarly to |g:ale_warn_about_trailing_whitespace|.
g:ale_warn_about_trailing_whitespace *g:ale_warn_about_trailing_whitespace*
*b:ale_warn_about_trailing_whitespace*
Type: |Number|
Default: `1`
When this option is set to `1`, warnings relating to trailing whitespace on
lines will be shown. If warnings are too irritating while editing buffers,
and you have configured Vim to automatically remove trailing whitespace,
you can disable these warnings by setting this option to `0`.
Not all linters may respect this option. If a linter does not, please file a
bug report, and it may be possible to add such support.
This option may be configured on a per buffer basis.
g:ale_windows_node_executable_path *g:ale_windows_node_executable_path*
*b:ale_windows_node_executable_path*
Type: |String|
Default: `'node.exe'`
This variable is used as the path to the executable to use for executing
scripts with Node.js on Windows.
For Windows, any file with a `.js` file extension needs to be executed with
the node executable explicitly. Otherwise, Windows could try and open the
scripts with other applications, like a text editor. Therefore, these
scripts are executed with whatever executable is configured with this
setting.
-------------------------------------------------------------------------------
6.1. Highlights *ale-highlights*
ALEError *ALEError*
Default: `highlight link ALEError SpellBad`
The highlight for highlighted errors. See |g:ale_set_highlights|.
ALEErrorLine *ALEErrorLine*
Default: Undefined
The highlight for an entire line where errors appear. Only the first
line for a problem will be highlighted.
See |g:ale_set_signs| and |g:ale_set_highlights|.
ALEErrorSign *ALEErrorSign*
Default: `highlight link ALEErrorSign error`
The highlight for error signs. See |g:ale_set_signs|.
ALEErrorSignLineNr *ALEErrorSignLineNr*
Default: `highlight link ALEErrorSignLineNr CursorLineNr`
The highlight for error signs. See |g:ale_set_signs|.
NOTE: This highlight is only available on Neovim 0.3.2 or higher.
ALEInfo *ALEInfo.*
*ALEInfo-highlight*
Default: `highlight link ALEInfo ALEWarning`
The highlight for highlighted info messages. See |g:ale_set_highlights|.
ALEInfoSign *ALEInfoSign*
Default: `highlight link ALEInfoSign ALEWarningSign`
The highlight for info message signs. See |g:ale_set_signs|.
ALEInfoLine *ALEInfoLine*
Default: Undefined
The highlight for entire lines where info messages appear. Only the first
line for a problem will be highlighted.
See |g:ale_set_signs| and |g:ale_set_highlights|.
ALEInfoSignLineNr *ALEInfoSignLineNr*
Default: `highlight link ALEInfoSignLineNr CursorLineNr`
The highlight for error signs. See |g:ale_set_signs|.
NOTE: This highlight is only available on Neovim 0.3.2 or higher.
ALEStyleError *ALEStyleError*
Default: `highlight link ALEStyleError ALEError`
The highlight for highlighted style errors. See |g:ale_set_highlights|.
ALEStyleErrorSign *ALEStyleErrorSign*
Default: `highlight link ALEStyleErrorSign ALEErrorSign`
The highlight for style error signs. See |g:ale_set_signs|.
ALEStyleErrorSignLineNr *ALEStyleErrorSignLineNr*
Default: `highlight link ALEStyleErrorSignLineNr CursorLineNr`
The highlight for error signs. See |g:ale_set_signs|.
NOTE: This highlight is only available on Neovim 0.3.2 or higher.
ALEStyleWarning *ALEStyleWarning*
Default: `highlight link ALEStyleWarning ALEError`
The highlight for highlighted style warnings. See |g:ale_set_highlights|.
ALEStyleWarningSign *ALEStyleWarningSign*
Default: `highlight link ALEStyleWarningSign ALEWarningSign`
The highlight for style warning signs. See |g:ale_set_signs|.
ALEStyleWarningSignLineNr *ALEStyleWarningSignLineNr*
Default: `highlight link ALEStyleWarningSignLineNr CursorLineNr`
The highlight for error signs. See |g:ale_set_signs|.
NOTE: This highlight is only available on Neovim 0.3.2 or higher.
ALEVirtualTextError *ALEVirtualTextError*
Default: `highlight link ALEVirtualTextError ALEError`
The highlight for virtualtext errors. See |g:ale_virtualtext_cursor|.
ALEVirtualTextInfo *ALEVirtualTextInfo*
Default: `highlight link ALEVirtualTextInfo ALEVirtualTextWarning`
The highlight for virtualtext info. See |g:ale_virtualtext_cursor|.
ALEVirtualTextStyleError *ALEVirtualTextStyleError*
Default: `highlight link ALEVirtualTextStyleError ALEVirtualTextError`
The highlight for virtualtext style errors. See |g:ale_virtualtext_cursor|.
ALEVirtualTextStyleWarning *ALEVirtualTextStyleWarning*
Default: `highlight link ALEVirtualTextStyleWarning ALEVirtualTextWarning`
The highlight for virtualtext style warnings. See |g:ale_virtualtext_cursor|.
ALEVirtualTextWarning *ALEVirtualTextWarning*
Default: `highlight link ALEVirtualTextWarning ALEWarning`
The highlight for virtualtext errors. See |g:ale_virtualtext_cursor|.
ALEWarning *ALEWarning*
Default: `highlight link ALEWarning SpellCap`
The highlight for highlighted warnings. See |g:ale_set_highlights|.
ALEWarningLine *ALEWarningLine*
Default: Undefined
The highlight for entire lines where warnings appear. Only the first line
for a problem will be highlighted.
See |g:ale_set_signs| and |g:ale_set_highlights|.
ALEWarningSign *ALEWarningSign*
Default: `highlight link ALEWarningSign todo`
The highlight for warning signs. See |g:ale_set_signs|.
ALEWarningSignLineNr *ALEWarningSignLineNr*
Default: `highlight link ALEWarningSignLineNr CursorLineNr`
The highlight for error signs. See |g:ale_set_signs|.
NOTE: This highlight is only available on Neovim 0.3.2 or higher.
===============================================================================
7. Linter/Fixer Options *ale-integration-options*
Linter and fixer options are documented below and in individual help files.
Every option for programs can be set globally, or individually for each
buffer. For example, `b:ale_python_flake8_executable` will override any
values set for `g:ale_python_flake8_executable`.
*ale-integrations-local-executables*
Some tools will prefer to search for locally-installed executables, unless
configured otherwise. For example, the `eslint` linter will search for
various executable paths in `node_modules`. The `flake8` linter will search
for virtualenv directories.
If you prefer to use global executables for those tools, set the relevant
`_use_global` and `_executable` options for those linters. >
" Use the global executable with a special name for eslint.
let g:ale_javascript_eslint_executable = 'special-eslint'
let g:ale_javascript_eslint_use_global = 1
" Use the global executable with a special name for flake8.
let g:ale_python_flake8_executable = '/foo/bar/flake8'
let g:ale_python_flake8_use_global = 1
<
|g:ale_use_global_executables| can be set to `1` in your vimrc file to make
ALE use global executables for all linters by default.
The option |g:ale_virtualenv_dir_names| controls the local virtualenv paths
ALE will use to search for Python executables.
-------------------------------------------------------------------------------
7.1. Options for alex *ale-alex-options*
The options for `alex` are shared between all filetypes, so options can be
configured once.
g:ale_alex_executable *g:ale_alex_executable*
*b:ale_alex_executable*
Type: |String|
Default: `'alex'`
See |ale-integrations-local-executables|
g:ale_alex_use_global *g:ale_alex_use_global*
*b:ale_alex_use_global*
Type: |Number|
Default: `get(g:, 'ale_use_global_executables', 0)`
See |ale-integrations-local-executables|
-------------------------------------------------------------------------------
7.2. Options for languagetool *ale-languagetool-options*
g:ale_languagetool_executable *g:ale_languagetool_executable*
*b:ale_languagetool_executable*
Type: |String|
Default: `'languagetool'`
The executable to run for languagetool.
g:ale_languagetool_options *g:ale_languagetool_options*
*b:ale_languagetool_options*
Type: |String|
Default: `'--autoDetect'`
This variable can be set to pass additional options to languagetool.
-------------------------------------------------------------------------------
7.3. Options for write-good *ale-write-good-options*
The options for `write-good` are shared between all filetypes, so options can
be configured once.
g:ale_writegood_executable *g:ale_writegood_executable*
*b:ale_writegood_executable*
Type: |String|
Default: `'writegood'`
See |ale-integrations-local-executables|
g:ale_writegood_options *g:ale_writegood_options*
*b:ale_writegood_options*
Type: |String|
Default: `''`
This variable can be set to pass additional options to writegood.
g:ale_writegood_use_global *g:ale_writegood_use_global*
*b:ale_writegood_use_global*
Type: |Number|
Default: `get(g:, 'ale_use_global_executables', 0)`
See |ale-integrations-local-executables|
-------------------------------------------------------------------------------
7.4. Other Linter/Fixer Options *ale-other-integration-options*
ALE supports a very wide variety of tools. Other linter or fixer options are
documented in additional help files.
ada.....................................|ale-ada-options|
gcc...................................|ale-ada-gcc|
gnatpp................................|ale-ada-gnatpp|
ansible.................................|ale-ansible-options|
ansible-lint..........................|ale-ansible-ansible-lint|
asciidoc................................|ale-asciidoc-options|
write-good............................|ale-asciidoc-write-good|
textlint..............................|ale-asciidoc-textlint|
asm.....................................|ale-asm-options|
gcc...................................|ale-asm-gcc|
awk.....................................|ale-awk-options|
gawk..................................|ale-awk-gawk|
bats....................................|ale-bats-options|
shellcheck............................|ale-bats-shellcheck|
bib.....................................|ale-bib-options|
bibclean..............................|ale-bib-bibclean|
c.......................................|ale-c-options|
clang.................................|ale-c-clang|
clangd................................|ale-c-clangd|
clang-format..........................|ale-c-clangformat|
clangtidy.............................|ale-c-clangtidy|
cppcheck..............................|ale-c-cppcheck|
cquery................................|ale-c-cquery|
flawfinder............................|ale-c-flawfinder|
gcc...................................|ale-c-gcc|
uncrustify............................|ale-c-uncrustify|
ccls..................................|ale-c-ccls|
chef....................................|ale-chef-options|
cookstyle.............................|ale-chef-cookstyle|
foodcritic............................|ale-chef-foodcritic|
clojure.................................|ale-clojure-options|
clj-kondo.............................|ale-clojure-clj-kondo|
joker.................................|ale-clojure-joker|
cloudformation..........................|ale-cloudformation-options|
cfn-python-lint.......................|ale-cloudformation-cfn-python-lint|
cmake...................................|ale-cmake-options|
cmakelint.............................|ale-cmake-cmakelint|
cmake-format..........................|ale-cmake-cmakeformat|
cpp.....................................|ale-cpp-options|
clang.................................|ale-cpp-clang|
clangd................................|ale-cpp-clangd|
clangcheck............................|ale-cpp-clangcheck|
clang-format..........................|ale-cpp-clangformat|
clangtidy.............................|ale-cpp-clangtidy|
clazy.................................|ale-cpp-clazy|
cppcheck..............................|ale-cpp-cppcheck|
cpplint...............................|ale-cpp-cpplint|
cquery................................|ale-cpp-cquery|
flawfinder............................|ale-cpp-flawfinder|
gcc...................................|ale-cpp-gcc|
uncrustify............................|ale-cpp-uncrustify|
ccls..................................|ale-cpp-ccls|
c#......................................|ale-cs-options|
csc...................................|ale-cs-csc|
mcs...................................|ale-cs-mcs|
mcsc..................................|ale-cs-mcsc|
uncrustify............................|ale-cs-uncrustify|
css.....................................|ale-css-options|
fecs..................................|ale-css-fecs|
prettier..............................|ale-css-prettier|
stylelint.............................|ale-css-stylelint|
cuda....................................|ale-cuda-options|
nvcc..................................|ale-cuda-nvcc|
clang-format..........................|ale-cuda-clangformat|
d.......................................|ale-d-options|
dfmt..................................|ale-d-dfmt|
dls...................................|ale-d-dls|
uncrustify............................|ale-d-uncrustify|
dart....................................|ale-dart-options|
dartanalyzer..........................|ale-dart-dartanalyzer|
dartfmt...............................|ale-dart-dartfmt|
dockerfile..............................|ale-dockerfile-options|
dockerfile_lint.......................|ale-dockerfile-dockerfile_lint|
hadolint..............................|ale-dockerfile-hadolint|
elixir..................................|ale-elixir-options|
mix...................................|ale-elixir-mix|
mix_format............................|ale-elixir-mix-format|
dialyxir..............................|ale-elixir-dialyxir|
elixir-ls.............................|ale-elixir-elixir-ls|
credo.................................|ale-elixir-credo|
elm.....................................|ale-elm-options|
elm-format............................|ale-elm-elm-format|
elm-ls................................|ale-elm-elm-ls|
elm-make..............................|ale-elm-elm-make|
erlang..................................|ale-erlang-options|
dialyzer..............................|ale-erlang-dialyzer|
erlc..................................|ale-erlang-erlc|
syntaxerl.............................|ale-erlang-syntaxerl|
eruby...................................|ale-eruby-options|
ruumba................................|ale-eruby-ruumba|
fish....................................|ale-fish-options|
fortran.................................|ale-fortran-options|
gcc...................................|ale-fortran-gcc|
language_server.......................|ale-fortran-language-server|
fountain................................|ale-fountain-options|
fusionscript............................|ale-fuse-options|
fusion-lint...........................|ale-fuse-fusionlint|
git commit..............................|ale-gitcommit-options|
gitlint...............................|ale-gitcommit-gitlint|
glsl....................................|ale-glsl-options|
glslang...............................|ale-glsl-glslang|
glslls................................|ale-glsl-glslls|
go......................................|ale-go-options|
bingo.................................|ale-go-bingo|
gobuild...............................|ale-go-gobuild|
gofmt.................................|ale-go-gofmt|
golangci-lint.........................|ale-go-golangci-lint|
golangserver..........................|ale-go-golangserver|
golint................................|ale-go-golint|
gometalinter..........................|ale-go-gometalinter|
gopls.................................|ale-go-gopls|
govet.................................|ale-go-govet|
revive................................|ale-go-revive|
staticcheck...........................|ale-go-staticcheck|
graphql.................................|ale-graphql-options|
eslint................................|ale-graphql-eslint|
gqlint................................|ale-graphql-gqlint|
prettier..............................|ale-graphql-prettier|
hack....................................|ale-hack-options|
hack..................................|ale-hack-hack|
hackfmt...............................|ale-hack-hackfmt|
hhast.................................|ale-hack-hhast|
handlebars..............................|ale-handlebars-options|
prettier..............................|ale-handlebars-prettier|
ember-template-lint...................|ale-handlebars-embertemplatelint|
haskell.................................|ale-haskell-options|
brittany..............................|ale-haskell-brittany|
floskell..............................|ale-haskell-floskell|
ghc...................................|ale-haskell-ghc|
ghc-mod...............................|ale-haskell-ghc-mod|
cabal-ghc.............................|ale-haskell-cabal-ghc|
hdevtools.............................|ale-haskell-hdevtools|
hfmt..................................|ale-haskell-hfmt|
hindent...............................|ale-haskell-hindent|
hlint.................................|ale-haskell-hlint|
stack-build...........................|ale-haskell-stack-build|
stack-ghc.............................|ale-haskell-stack-ghc|
stylish-haskell.......................|ale-haskell-stylish-haskell|
hie...................................|ale-haskell-hie|
hcl.....................................|ale-hcl-options|
terraform-fmt.........................|ale-hcl-terraform-fmt|
html....................................|ale-html-options|
fecs..................................|ale-html-fecs|
html-beautify.........................|ale-html-beautify|
htmlhint..............................|ale-html-htmlhint|
tidy..................................|ale-html-tidy|
prettier..............................|ale-html-prettier|
stylelint.............................|ale-html-stylelint|
write-good............................|ale-html-write-good|
idris...................................|ale-idris-options|
idris.................................|ale-idris-idris|
ink.....................................|ale-ink-options|
ink-language-server...................|ale-ink-language-server|
ispc....................................|ale-ispc-options|
ispc..................................|ale-ispc-ispc|
java....................................|ale-java-options|
checkstyle............................|ale-java-checkstyle|
javac.................................|ale-java-javac|
google-java-format....................|ale-java-google-java-format|
pmd...................................|ale-java-pmd|
javalsp...............................|ale-java-javalsp|
eclipselsp............................|ale-java-eclipselsp|
uncrustify............................|ale-java-uncrustify|
javascript..............................|ale-javascript-options|
eslint................................|ale-javascript-eslint|
fecs..................................|ale-javascript-fecs|
flow..................................|ale-javascript-flow|
importjs..............................|ale-javascript-importjs|
jscs..................................|ale-javascript-jscs|
jshint................................|ale-javascript-jshint|
prettier..............................|ale-javascript-prettier|
prettier-eslint.......................|ale-javascript-prettier-eslint|
prettier-standard.....................|ale-javascript-prettier-standard|
standard..............................|ale-javascript-standard|
xo....................................|ale-javascript-xo|
json....................................|ale-json-options|
fixjson...............................|ale-json-fixjson|
jsonlint..............................|ale-json-jsonlint|
jq....................................|ale-json-jq|
prettier..............................|ale-json-prettier|
julia...................................|ale-julia-options|
languageserver........................|ale-julia-languageserver|
kotlin..................................|ale-kotlin-options|
kotlinc...............................|ale-kotlin-kotlinc|
ktlint................................|ale-kotlin-ktlint|
languageserver........................|ale-kotlin-languageserver|
latex...................................|ale-latex-options|
write-good............................|ale-latex-write-good|
textlint..............................|ale-latex-textlint|
less....................................|ale-less-options|
lessc.................................|ale-less-lessc|
prettier..............................|ale-less-prettier|
stylelint.............................|ale-less-stylelint|
llvm....................................|ale-llvm-options|
llc...................................|ale-llvm-llc|
lua.....................................|ale-lua-options|
luac..................................|ale-lua-luac|
luacheck..............................|ale-lua-luacheck|
markdown................................|ale-markdown-options|
mdl...................................|ale-markdown-mdl|
prettier..............................|ale-markdown-prettier|
remark-lint...........................|ale-markdown-remark-lint|
textlint..............................|ale-markdown-textlint|
write-good............................|ale-markdown-write-good|
mercury.................................|ale-mercury-options|
mmc...................................|ale-mercury-mmc|
nasm....................................|ale-nasm-options|
nasm..................................|ale-nasm-nasm|
nim.....................................|ale-nim-options|
nimcheck..............................|ale-nim-nimcheck|
nimlsp................................|ale-nim-nimlsp|
nimpretty.............................|ale-nim-nimpretty|
nix.....................................|ale-nix-options|
nixpkgs-fmt...........................|ale-nix-nixpkgs-fmt|
nroff...................................|ale-nroff-options|
write-good............................|ale-nroff-write-good|
objc....................................|ale-objc-options|
clang.................................|ale-objc-clang|
clangd................................|ale-objc-clangd|
uncrustify............................|ale-objc-uncrustify|
ccls..................................|ale-objc-ccls|
objcpp..................................|ale-objcpp-options|
clang.................................|ale-objcpp-clang|
clangd................................|ale-objcpp-clangd|
uncrustify............................|ale-objcpp-uncrustify|
ocaml...................................|ale-ocaml-options|
merlin................................|ale-ocaml-merlin|
ols...................................|ale-ocaml-ols|
ocamlformat...........................|ale-ocaml-ocamlformat|
ocp-indent............................|ale-ocaml-ocp-indent|
pawn....................................|ale-pawn-options|
uncrustify............................|ale-pawn-uncrustify|
perl....................................|ale-perl-options|
perl..................................|ale-perl-perl|
perlcritic............................|ale-perl-perlcritic|
perltidy..............................|ale-perl-perltidy|
perl6...................................|ale-perl6-options|
perl6.................................|ale-perl6-perl6|
php.....................................|ale-php-options|
langserver............................|ale-php-langserver|
phan..................................|ale-php-phan|
phpcbf................................|ale-php-phpcbf|
phpcs.................................|ale-php-phpcs|
phpmd.................................|ale-php-phpmd|
phpstan...............................|ale-php-phpstan|
psalm.................................|ale-php-psalm|
php-cs-fixer..........................|ale-php-php-cs-fixer|
php...................................|ale-php-php|
po......................................|ale-po-options|
write-good............................|ale-po-write-good|
pod.....................................|ale-pod-options|
write-good............................|ale-pod-write-good|
pony....................................|ale-pony-options|
ponyc.................................|ale-pony-ponyc|
powershell............................|ale-powershell-options|
powershell..........................|ale-powershell-powershell|
psscriptanalyzer....................|ale-powershell-psscriptanalyzer|
prolog..................................|ale-prolog-options|
swipl.................................|ale-prolog-swipl|
proto...................................|ale-proto-options|
protoc-gen-lint.......................|ale-proto-protoc-gen-lint|
pug.....................................|ale-pug-options|
puglint...............................|ale-pug-puglint|
puppet..................................|ale-puppet-options|
puppet................................|ale-puppet-puppet|
puppetlint............................|ale-puppet-puppetlint|
puppet-languageserver.................|ale-puppet-languageserver|
purescript..............................|ale-purescript-options|
purescript-language-server............|ale-purescript-language-server|
purty.................................|ale-purescript-purty|
pyrex (cython)..........................|ale-pyrex-options|
cython................................|ale-pyrex-cython|
python..................................|ale-python-options|
autopep8..............................|ale-python-autopep8|
bandit................................|ale-python-bandit|
black.................................|ale-python-black|
flake8................................|ale-python-flake8|
isort.................................|ale-python-isort|
mypy..................................|ale-python-mypy|
prospector............................|ale-python-prospector|
pycodestyle...........................|ale-python-pycodestyle|
pydocstyle............................|ale-python-pydocstyle|
pyflakes..............................|ale-python-pyflakes|
pylama................................|ale-python-pylama|
pylint................................|ale-python-pylint|
pyls..................................|ale-python-pyls|
pyre..................................|ale-python-pyre|
reorder-python-imports................|ale-python-reorder_python_imports|
vulture...............................|ale-python-vulture|
yapf..................................|ale-python-yapf|
qml.....................................|ale-qml-options|
qmlfmt................................|ale-qml-qmlfmt|
r.......................................|ale-r-options|
lintr.................................|ale-r-lintr|
styler................................|ale-r-styler|
reasonml................................|ale-reasonml-options|
merlin................................|ale-reasonml-merlin|
ols...................................|ale-reasonml-ols|
reason-language-server................|ale-reasonml-language-server|
refmt.................................|ale-reasonml-refmt|
restructuredtext........................|ale-restructuredtext-options|
textlint..............................|ale-restructuredtext-textlint|
write-good............................|ale-restructuredtext-write-good|
ruby....................................|ale-ruby-options|
brakeman..............................|ale-ruby-brakeman|
debride...............................|ale-ruby-debride|
rails_best_practices..................|ale-ruby-rails_best_practices|
reek..................................|ale-ruby-reek|
rubocop...............................|ale-ruby-rubocop|
ruby..................................|ale-ruby-ruby|
rufo..................................|ale-ruby-rufo|
solargraph............................|ale-ruby-solargraph|
sorbet................................|ale-ruby-sorbet|
standardrb............................|ale-ruby-standardrb|
rust....................................|ale-rust-options|
analyzer..............................|ale-rust-analyzer|
cargo.................................|ale-rust-cargo|
rls...................................|ale-rust-rls|
rustc.................................|ale-rust-rustc|
rustfmt...............................|ale-rust-rustfmt|
sass....................................|ale-sass-options|
sasslint..............................|ale-sass-sasslint|
stylelint.............................|ale-sass-stylelint|
scala...................................|ale-scala-options|
metals................................|ale-scala-metals|
sbtserver.............................|ale-scala-sbtserver|
scalafmt..............................|ale-scala-scalafmt|
scalastyle............................|ale-scala-scalastyle|
scss....................................|ale-scss-options|
prettier..............................|ale-scss-prettier|
sasslint..............................|ale-scss-sasslint|
stylelint.............................|ale-scss-stylelint|
sh......................................|ale-sh-options|
sh-language-server....................|ale-sh-language-server|
shell.................................|ale-sh-shell|
shellcheck............................|ale-sh-shellcheck|
shfmt.................................|ale-sh-shfmt|
sml.....................................|ale-sml-options|
smlnj.................................|ale-sml-smlnj|
solidity................................|ale-solidity-options|
solc..................................|ale-solidity-solc|
solhint...............................|ale-solidity-solhint|
solium................................|ale-solidity-solium|
spec....................................|ale-spec-options|
rpmlint...............................|ale-spec-rpmlint|
sql.....................................|ale-sql-options|
pgformatter...........................|ale-sql-pgformatter|
sqlfmt................................|ale-sql-sqlfmt|
sqlformat.............................|ale-sql-sqlformat|
stylus..................................|ale-stylus-options|
stylelint.............................|ale-stylus-stylelint|
sugarss.................................|ale-sugarss-options|
stylelint.............................|ale-sugarss-stylelint|
swift...................................|ale-swift-options|
sourcekitlsp..........................|ale-swift-sourcekitlsp|
tcl.....................................|ale-tcl-options|
nagelfar..............................|ale-tcl-nagelfar|
terraform...............................|ale-terraform-options|
terraform-fmt-fixer...................|ale-terraform-fmt-fixer|
terraform.............................|ale-terraform-terraform|
terraform-lsp.........................|ale-terraform-terraform-lsp|
tflint................................|ale-terraform-tflint|
tex.....................................|ale-tex-options|
chktex................................|ale-tex-chktex|
lacheck...............................|ale-tex-lacheck|
latexindent...........................|ale-tex-latexindent|
texlab................................|ale-tex-texlab|
texinfo.................................|ale-texinfo-options|
write-good............................|ale-texinfo-write-good|
text....................................|ale-text-options|
textlint..............................|ale-text-textlint|
write-good............................|ale-text-write-good|
thrift..................................|ale-thrift-options|
thrift................................|ale-thrift-thrift|
typescript..............................|ale-typescript-options|
eslint................................|ale-typescript-eslint|
prettier..............................|ale-typescript-prettier|
standard..............................|ale-typescript-standard|
tslint................................|ale-typescript-tslint|
tsserver..............................|ale-typescript-tsserver|
vala....................................|ale-vala-options|
uncrustify............................|ale-vala-uncrustify|
verilog/systemverilog...................|ale-verilog-options|
iverilog..............................|ale-verilog-iverilog|
verilator.............................|ale-verilog-verilator|
vlog..................................|ale-verilog-vlog|
xvlog.................................|ale-verilog-xvlog|
vhdl....................................|ale-vhdl-options|
ghdl..................................|ale-vhdl-ghdl|
vcom..................................|ale-vhdl-vcom|
xvhdl.................................|ale-vhdl-xvhdl|
vim.....................................|ale-vim-options|
vimls.................................|ale-vim-vimls|
vint..................................|ale-vim-vint|
vim help................................|ale-vim-help-options|
write-good............................|ale-vim-help-write-good|
vue.....................................|ale-vue-options|
prettier..............................|ale-vue-prettier|
vls...................................|ale-vue-vls|
xhtml...................................|ale-xhtml-options|
write-good............................|ale-xhtml-write-good|
xml.....................................|ale-xml-options|
xmllint...............................|ale-xml-xmllint|
yaml....................................|ale-yaml-options|
prettier..............................|ale-yaml-prettier|
swaglint..............................|ale-yaml-swaglint|
yamllint..............................|ale-yaml-yamllint|
yang....................................|ale-yang-options|
yang-lsp..............................|ale-yang-lsp|
===============================================================================
8. Commands/Keybinds *ale-commands*
ALEComplete *ALEComplete*
Manually trigger LSP autocomplete and show the menu. Works only when called
from insert mode. >
inoremap <silent> <C-Space> <C-\><C-O>:AleComplete<CR>
<
A plug mapping `<Plug>(ale_complete)` is defined for this command. >
imap <C-Space> <Plug>(ale_complete)
<
ALEDocumentation *ALEDocumentation*
Similar to the |ALEHover| command, retrieve documentation information for
the symbol at the cursor. Documentation data will always be shown in a
preview window, no matter how small the documentation content is.
NOTE: This command is only available for `tsserver`.
A plug mapping `<Plug>(ale_documentation)` is defined for this command.
ALEFindReferences *ALEFindReferences*
Find references in the codebase for the symbol under the cursor using the
enabled LSP linters for the buffer. ALE will display a preview window
containing the results if some references are found.
The window can be navigated using the usual Vim navigation commands. The
Enter key (`<CR>`) can be used to jump to a referencing location, or the `t`
key can be used to jump to the location in a new tab.
The locations opened in different ways using the following variations.
`:ALEFindReferences -tab` - Open the location in a new tab.
`:ALEFindReferences -split` - Open the location in a horizontal split.
`:ALEFindReferences -vsplit` - Open the location in a vertical split.
The default method used for navigating to a new location can be changed
by modifying |g:ale_default_navigation|.
The selection can be opened again with the |ALERepeatSelection| command.
You can jump back to the position you were at before going to a reference of
something with jump motions like CTRL-O. See |jump-motions|.
A plug mapping `<Plug>(ale_find_references)` is defined for this command.
ALEFix *ALEFix*
Fix problems with the current buffer. See |ale-fix| for more information.
A plug mapping `<Plug>(ale_fix)` is defined for this command.
ALEFixSuggest *ALEFixSuggest*
Suggest tools that can be used to fix problems in the current buffer.
See |ale-fix| for more information.
ALEGoToDefinition `<options>` *ALEGoToDefinition*
Jump to the definition of a symbol under the cursor using the enabled LSP
linters for the buffer. ALE will jump to a definition if an LSP server
provides a location to jump to. Otherwise, ALE will do nothing.
The locations opened in different ways using the following variations.
`:ALEGoToDefinition -tab` - Open the location in a new tab.
`:ALEGoToDefinition -split` - Open the location in a horizontal split.
`:ALEGoToDefinition -vsplit` - Open the location in a vertical split.
The default method used for navigating to a new location can be changed
by modifying |g:ale_default_navigation|.
You can jump back to the position you were at before going to the definition
of something with jump motions like CTRL-O. See |jump-motions|.
You should consider using the 'hidden' option in combination with this
command. Otherwise, Vim will refuse to leave the buffer you're jumping from
unless you have saved your edits.
A plug mapping `<Plug>(ale_go_to_definition)` is defined for this command.
ALEGoToTypeDefinition *ALEGoToTypeDefinition*
This works similar to |ALEGoToDefinition| but instead jumps to the
definition of a type of a symbol under the cursor. ALE will jump to a
definition if an LSP server provides a location to jump to. Otherwise, ALE
will do nothing.
The locations opened in different ways using the following variations.
`:ALEGoToTypeDefinition -tab` - Open the location in a new tab.
`:ALEGoToTypeDefinition -split` - Open the location in a horizontal split.
`:ALEGoToTypeDefinition -vsplit` - Open the location in a vertical split.
The default method used for navigating to a new location can be changed
by modifying |g:ale_default_navigation|.
You can jump back to the position you were at before going to the definition
of something with jump motions like CTRL-O. See |jump-motions|.
A plug mapping `<Plug>(ale_go_to_type_definition)` is defined for this
command.
ALEHover *ALEHover*
Print brief information about the symbol under the cursor, taken from any
available LSP linters. There may be a small non-blocking delay before
information is printed.
NOTE: In Vim 8, long messages will be shown in a preview window, as Vim 8
does not support showing a prompt to press enter to continue for long
messages from asynchronous callbacks.
A plug mapping `<Plug>(ale_hover)` is defined for this command.
ALEOrganizeImports *ALEOrganizeImports*
Organize imports using tsserver. Currently not implemented for LSPs.
ALERename *ALERename*
Rename a symbol using TypeScript server or Language Server.
The user will be prompted for a new name.
ALERepeatSelection *ALERepeatSelection*
Repeat the last selection displayed in the preview window.
ALESymbolSearch `<query>` *ALESymbolSearch*
Search for symbols in the workspace, taken from any available LSP linters.
The arguments provided to this command will be used as a search query for
finding symbols in the workspace, such as functions, types, etc.
*:ALELint*
ALELint *ALELint*
Run ALE once for the current buffer. This command can be used to run ALE
manually, instead of automatically, if desired.
This command will also run linters where `lint_file` is set to `1`, or in
other words linters which check the file instead of the Vim buffer.
A plug mapping `<Plug>(ale_lint)` is defined for this command.
ALEPrevious *ALEPrevious*
ALEPreviousWrap *ALEPreviousWrap*
ALENext *ALENext*
ALENextWrap *ALENextWrap*
ALEFirst *ALEFirst*
ALELast *ALELast*
*ale-navigation-commands*
Move between warnings or errors in a buffer. ALE will only navigate between
the errors or warnings it generated, even if both |g:ale_set_quickfix|
and |g:ale_set_loclist| are set to `0`.
`ALEPrevious` and `ALENext` will stop at the top and bottom of a file, while
`ALEPreviousWrap` and `ALENextWrap` will wrap around the file to find
the last or first warning or error in the file, respectively.
`ALEPrevious` and `ALENext` take optional flags arguments to custom their
behaviour :
`-wrap` enable wrapping around the file
`-error`, `-warning` and `-info` enable jumping to errors, warnings or infos
respectively, ignoring anything else. They are mutually exclusive and if
several are provided the priority is the following: error > warning > info.
`-style` and `-nostyle` allow you to jump respectively to style error or
warning and to not style error or warning. They also are mutually
exclusive and nostyle has priority over style.
Flags can be combined to create create custom jumping. Thus you can use
":ALENext -wrap -error -nosyle" to jump to the next error which is not a
style error while going back to the beginning of the file if needed.
`ALEFirst` goes to the first error or warning in the buffer, while `ALELast`
goes to the last one.
The following |<Plug>| mappings are defined for the commands: >
<Plug>(ale_previous) - ALEPrevious
<Plug>(ale_previous_wrap) - ALEPreviousWrap
<Plug>(ale_previous_error) - ALEPrevious -error
<Plug>(ale_previous_wrap_error) - ALEPrevious -wrap -error
<Plug>(ale_previous_warning) - ALEPrevious -warning
<Plug>(ale_previous_wrap_warning) - ALEPrevious -wrap -warning
<Plug>(ale_next) - ALENext
<Plug>(ale_next_wrap) - ALENextWrap
<Plug>(ale_next_error) - ALENext -error
<Plug>(ale_next_wrap_error) - ALENext -wrap -error
<Plug>(ale_next_warning) - ALENext -warning
<Plug>(ale_next_wrap_warning) - ALENext -wrap -warning
<Plug>(ale_first) - ALEFirst
<Plug>(ale_last) - ALELast
<
For example, these commands could be bound to the keys Ctrl + j
and Ctrl + k: >
" Map movement through errors without wrapping.
nmap <silent> <C-k> <Plug>(ale_previous)
nmap <silent> <C-j> <Plug>(ale_next)
" OR map keys to use wrapping.
nmap <silent> <C-k> <Plug>(ale_previous_wrap)
nmap <silent> <C-j> <Plug>(ale_next_wrap)
<
ALEToggle *ALEToggle*
ALEEnable *ALEEnable*
ALEDisable *ALEDisable*
ALEToggleBuffer *ALEToggleBuffer*
ALEEnableBuffer *ALEEnableBuffer*
ALEDisableBuffer *ALEDisableBuffer*
`ALEToggle`, `ALEEnable`, and `ALEDisable` enable or disable ALE linting,
including all of its autocmd events, loclist items, quickfix items, signs,
current jobs, etc., globally. Executing any of these commands will change
the |g:ale_enabled| variable.
ALE can be disabled or enabled for only a single buffer with
`ALEToggleBuffer`, `ALEEnableBuffer`, and `ALEDisableBuffer`. Disabling ALE
for a buffer will not remove autocmd events, but will prevent ALE from
checking for problems and reporting problems for whatever buffer the
`ALEDisableBuffer` or `ALEToggleBuffer` command is executed from. These
commands can be used for temporarily disabling ALE for a buffer. These
commands will modify the |b:ale_enabled| variable.
ALE linting cannot be enabled for a single buffer when it is disabled
globally, as disabling ALE globally removes the autocmd events needed to
perform linting with.
The following plug mappings are defined, for conveniently defining keybinds:
|ALEToggle| - `<Plug>(ale_toggle)`
|ALEEnable| - `<Plug>(ale_enable)`
|ALEDisable| - `<Plug>(ale_disable)`
|ALEToggleBuffer| - `<Plug>(ale_toggle_buffer)`
|ALEEnableBuffer| - `<Plug>(ale_enable_buffer)`
|ALEDisableBuffer| - `<Plug>(ale_disable_buffer)`
For removing problems reported by ALE, but leaving ALE enabled, see
|ALEReset| and |ALEResetBuffer|.
*:ALEDetail*
ALEDetail *ALEDetail*
Show the full linter message for the problem nearest to the cursor on the
given line in the preview window. The preview window can be easily closed
with the `q` key. If there is no message to show, the window will not be
opened.
If a loclist item has a `detail` key set, the message for that key will be
preferred over `text`. See |ale-loclist-format|.
A plug mapping `<Plug>(ale_detail)` is defined for this command.
*:ALEInfo*
ALEInfo *ALEInfo*
ALEInfoToClipboard *ALEInfoToClipboard*
Print runtime information about ALE, including the values of global and
buffer-local settings for ALE, the linters that are enabled, the commands
that have been run, and the output of commands.
ALE will log the commands that are run by default. If you wish to disable
this, set |g:ale_history_enabled| to `0`. Because it could be expensive, ALE
does not remember the output of recent commands by default. Set
|g:ale_history_log_output| to `1` to enable logging of output for commands.
ALE will only log the output captured for parsing problems, etc.
The command `:ALEInfoToClipboard` can be used to output ALEInfo directly to
your clipboard. This might not work on every machine.
`:ALEInfoToFile` will write the ALE runtime information to a given filename.
The filename works just like |:w|.
ALEReset *ALEReset*
ALEResetBuffer *ALEResetBuffer*
`ALEReset` will remove all problems reported by ALE for all buffers.
`ALEResetBuffer` will remove all problems reported for a single buffer.
Either command will leave ALE linting enabled, so ALE will report problems
when linting is performed again. See |ale-lint| for more information.
The following plug mappings are defined, for conveniently defining keybinds:
|ALEReset| - `<Plug>(ale_reset)`
|ALEResetBuffer| - `<Plug>(ale_reset_buffer)`
ALE can be disabled globally or for a buffer with |ALEDisable| or
|ALEDisableBuffer|.
ALEStopAllLSPs *ALEStopAllLSPs*
`ALEStopAllLSPs` will close and stop all channels and jobs for all LSP-like
clients, including tsserver, remove all of the data stored for them, and
delete all of the problems found for them, updating every linted buffer.
This command can be used when LSP clients mess up and need to be restarted.
===============================================================================
9. API *ale-api*
ALE offers a number of functions for running linters or fixers, or defining
them. The following functions are part of the publicly documented part of that
API, and should be expected to continue to work.
ale#Env(variable_name, value) *ale#Env()*
Given a variable name and a string value, produce a string for including in
a command for setting environment variables. This function can be used for
building a command like so. >
:echo string(ale#Env('VAR', 'some value') . 'command')
'VAR=''some value'' command' # On Linux or Mac OSX
'set VAR="some value" && command' # On Windows
ale#Has(feature) *ale#Has()*
Return `1` if ALE supports a given feature, like |has()| for Vim features.
ALE versions can be checked with version strings in the format
`ale#Has('ale-x.y.z')`, such as `ale#Has('ale-2.4.0')`.
ale#Pad(string) *ale#Pad()*
Given a string or any |empty()| value, return either the string prefixed
with a single space, or an empty string. This function can be used to build
parts of a command from variables.
ale#Queue(delay, [linting_flag, buffer_number]) *ale#Queue()*
Run linters for the current buffer, based on the filetype of the buffer,
with a given `delay`. A `delay` of `0` will run the linters immediately.
The linters will always be run in the background. Calling this function
again from the same buffer
An optional `linting_flag` argument can be given. If `linting_flag`
is `'lint_file'`, then linters where the `lint_file` option is set to `1` will be
run. Linters with `lint_file` set to `1` are not run by default.
An optional `buffer_number` argument can be given for specifying the buffer
to check. The active buffer (`bufnr('')`) will be checked by default.
*ale-cool-down*
If an exception is thrown when queuing/running ALE linters, ALE will enter
a cool down period where it will stop checking anything for a short period
of time. This is to prevent ALE from seriously annoying users if a linter
is broken, or when developing ALE itself.
ale#command#CreateDirectory(buffer) *ale#command#CreateDirectory()*
Create a new temporary directory with a unique name, and manage that
directory with |ale#command#ManageDirectory()|, so it will be removed as soon
as possible.
It is advised to only call this function from a callback function for
returning a linter command to run.
ale#command#CreateFile(buffer) *ale#command#CreateFile()*
Create a new temporary file with a unique name, and manage that file with
|ale#command#ManageFile()|, so it will be removed as soon as possible.
It is advised to only call this function from a callback function for
returning a linter command to run.
ale#command#Run(buffer, command, callback, [options]) *ale#command#Run()*
Start running a job in the background, and pass the results to the given
callback later.
This function can be used for computing the results of ALE linter or fixer
functions asynchronously with jobs. `buffer` must match the buffer being
linted or fixed, `command` must be a |String| for a shell command to
execute, `callback` must be defined as a |Funcref| to call later with the
results, and an optional |Dictionary| of `options` can be provided.
The `callback` will receive the arguments `(buffer, output, metadata)`,
where the `buffer` will match the buffer given to the function, the `output`
will be a `List` of lines of output from the job that was run, and the
`metadata` will be a |Dictionary| with additional information about the job
that was run, including:
`exit_code` - A |Number| with the exit code for the program that was run.
The result of this function is either a special |Dictionary| ALE will use
for waiting for the command to finish, or `0` if the job is not started. The
The return value of the `callback` will be used as the eventual result for
whatever value is being given to ALE. For example: >
function! s:GetCommand(buffer, output, meta) abort
" Do something with a:output here, from the foo command.
" This is used as the command to run for linting.
return 'final command'
endfunction
" ...
'command': {b -> ale#command#Run(b, 'foo', function('s:GetCommand'))}
<
The result of a callback can also be the result of another call to this
function, so that several commands can be arbitrarily chained together. For
example: >
function! s:GetAnotherCommand(buffer, output, meta) abort
" We can finally return this command.
return 'last command'
endfunction
function! s:GetCommand(buffer, output, meta) abort
" We can return another deferred result.
return ale#command#Run(
\ a:buffer,
\ 'second command',
\ function('s:GetAnotherCommand')
\)
endfunction
" ...
'command': {b -> ale#command#Run(b, 'foo', function('s:GetCommand'))}
<
The following `options` can be provided.
`output_stream` - Either `'stdout'`, `'stderr'`, `'both'`, or `'none`' for
selecting which output streams to read lines from.
The default is `'stdout'`
`executable` - An executable for formatting into `%e` in the command.
If this option is not provided, formatting commands with
`%e` will not work.
`read_buffer` - If set to `1`, the buffer will be piped into the
command.
The default is `0`.
`input` - When creating temporary files with `%t` or piping text
into a command `input` can be set to a |List| of text to
use instead of the buffer's text.
ale#command#EscapeCommandPart(command_part) *ale#command#EscapeCommandPart()*
Given a |String|, return a |String| with all `%` characters replaced with
`%%` instead. This function can be used to escape strings which are
dynamically generated for commands before handing them over to ALE,
so that ALE doesn't treat any strings with `%` formatting sequences
specially.
ale#command#ManageDirectory(buffer, directory) *ale#command#ManageDirectory()*
Like |ale#command#ManageFile()|, but directories and all of their contents
will be deleted, akin to `rm -rf directory`, which could lead to loss of
data if mistakes are made. This command will also delete any temporary
filenames given to it.
It is advised to use |ale#command#ManageFile()| instead for deleting single
files.
ale#command#ManageFile(buffer, filename) *ale#command#ManageFile()*
Given a buffer number for a buffer currently running some linting or fixing
tasks and a filename, register a filename with ALE for automatic deletion
after linting or fixing is complete, or when Vim exits.
If Vim exits suddenly, ALE will try its best to remove temporary files, but
ALE cannot guarantee with absolute certainty that the files will be removed.
It is advised to create temporary files in the operating system's managed
temporary file directory, such as with |tempname()|.
Directory names should not be given to this function. ALE will only delete
files and symlinks given to this function. This is to prevent entire
directories from being accidentally deleted, say in cases of writing
`dir . '/' . filename` where `filename` is actually `''`, etc. ALE instead
manages directories separately with the |ale#command#ManageDirectory| function.
ale#completion#OmniFunc(findstart, base) *ale#completion#OmniFunc()*
A completion function to use with 'omnifunc'.
See |ale-completion|.
ale#engine#GetLoclist(buffer) *ale#engine#GetLoclist()*
Given a buffer number, this function will return the list of problems
reported by ALE for a given buffer in the format accepted by |setqflist()|.
A reference to the buffer's list of problems will be returned. The list must
be copied before applying |map()| or |filter()|.
ale#engine#IsCheckingBuffer(buffer) *ale#engine#IsCheckingBuffer()*
Given a buffer number, returns `1` when ALE is busy checking that buffer.
This function can be used for status lines, tab names, etc.
ale#fix#registry#Add(name, func, filetypes, desc, [aliases])
*ale#fix#registry#Add()*
Given a |String| `name` for a name to add to the registry, a |String| `func`
for a function name, a |List| `filetypes` for a list of filetypes to
set for suggestions, and a |String| `desc` for a short description of
the fixer, register a fixer in the registry.
The `name` can then be used for |g:ale_fixers| in place of the function
name, and suggested for fixing files.
An optional |List| of |String|s for aliases can be passed as the `aliases`
argument. These aliases can also be used for looking up a fixer function.
ALE will search for fixers in the registry first by `name`, then by their
`aliases`.
ale#linter#Define(filetype, linter) *ale#linter#Define()*
Given a |String| for a filetype and a |Dictionary| Describing a linter
configuration, add a linter for the given filetype. The dictionaries each
offer the following options:
`name` The name of the linter. These names will be used by
|g:ale_linters| option for enabling/disabling
particular linters.
This argument is required.
`callback` A |String| or |Funcref| for a callback function
accepting two arguments (buffer, lines), for a
buffer number the output is for, and the lines of
output from a linter.
This callback function should return a |List| of
|Dictionary| objects in the format accepted by
|setqflist()|. The |List| will be sorted by line and
then column order so it can be searched with a binary
search by in future before being passed on to the
|loclist|, etc.
This argument is required, unless the linter is an
LSP linter. In which case, this argument must not be
defined, as LSP linters handle diagnostics
automatically. See |ale-lsp-linters|.
If the function named does not exist, including if
the function is later deleted, ALE will behave as if
the callback returned an empty list.
The keys for each item in the List will be handled in
the following manner:
*ale-loclist-format*
`text` - This error message is required.
`detail` - An optional, more descriptive message.
This message can be displayed with the |ALEDetail|
command instead of the message for `text`, if set.
`lnum` - The line number is required. Any strings
will be automatically converted to numbers by
using `str2nr()`.
Line 0 will be moved to line 1, and lines beyond
the end of the file will be moved to the end.
`col` - The column number is optional and will
default to `0`. Any strings will be automatically
converted to number using `str2nr()`.
`end_col` - An optional end column number.
This key can be set to specify the column problems
end on, for improved highlighting.
`end_lnum` - An optional end line number.
This key can set along with `end_col` for
highlighting multi-line problems.
`bufnr` - This key represents the buffer number the
problems are for. This value will default to
the buffer number being checked.
The `filename` key can be set instead of this key,
and then the eventual `bufnr` value in the final
list will either represent the number for an open
buffer or `-1` for a file not open in any buffer.
`filename` - An optional filename for the file the
problems are for. This should be an absolute path to
a file.
Problems for files which have not yet been opened
will be set in those files after they are opened
and have been checked at least once.
Temporary files in directories used for Vim
temporary files with `tempname()` will be assumed
to be the buffer being checked, unless the `bufnr`
key is also set with a valid number for some other
buffer.
`vcol` - Defaults to `0`.
If set to `1`, ALE will convert virtual column
positions for `col` and `end_col` to byte column
positions. If the buffer is changed in-between
checking it and displaying the results, the
calculated byte column positions will probably be
wrong.
`type` - Defaults to `'E'`.
`nr` - Defaults to `-1`.
Numeric error code. If `nr` is not `-1`, `code`
likely should contain the string representation of
the same value.
`code` - No default; may be unset.
Human-readable |String| error code.
`executable` A |String| naming the executable itself which
will be run, or a |Funcref| for a function to call
for computing the executable, accepting a buffer
number.
The result can be computed with |ale#command#Run()|.
This value will be used to check if the program
requested is installed or not.
If an `executable` is not defined, the command will
be run without checking if a program is executable
first. Defining an executable path is recommended to
avoid starting too many processes.
`command` A |String| for a command to run asynchronously, or a
|Funcref| for a function to call for computing the
command, accepting a buffer number.
The result can be computed with |ale#command#Run()|.
This command will be fed the lines from the buffer to
check, and will produce the lines of output given to
the `callback`.
`output_stream` A |String| for the output stream the lines of output
should be read from for the command which is run. The
accepted values are `'stdout'`, `'stderr'`, and
`'both'`. This argument defaults to `'stdout'`. This
argument can be set for linter programs which output
their errors and warnings to the stderr stream
instead of stdout. The option `'both'` will read
from both stder and stdout at the same time.
`read_buffer` A |Number| (`0` or `1`) indicating whether a command
should read the Vim buffer as input via stdin. This
option is set to `1` by default, and can be disabled
if a command manually reads from a temporary file
instead, etc.
*ale-lint-file*
`lint_file` A |Number| (`0` or `1`) indicating whether a command
should read the file instead of the Vim buffer. This
option can be used for linters which must check the
file on disk, and which cannot check a Vim buffer
instead.
Linters set with this option will not be run as a
user types, per |g:ale_lint_on_text_changed|. Linters
will instead be run only when events occur against
the file on disk, including |g:ale_lint_on_enter|
and |g:ale_lint_on_save|. Linters with this option
set to `1` will also be run when linters are run
manually, per |ALELintPost-autocmd|.
When this option is set to `1`, `read_buffer` will
be set automatically to `0`. The two options cannot
be used together.
*ale-lsp-linters*
`lsp` A |String| for defining LSP (Language Server Protocol)
linters.
This argument may be omitted or `''` when a linter
does not represent an LSP linter.
When this argument is set to `'stdio'`, then the
linter will be defined as an LSP linter which keeps a
process for a language server running, and
communicates with it directly via a |channel|.
`executable` and `command` must be set.
When this argument is set to `'socket'`, then the
linter will be defined as an LSP linter via a TCP
socket connection. `address` must be set.
ALE will not start a server automatically.
When this argument is not empty `project_root` must
be defined.
`language` can be defined to describe the language
for a file. The filetype will be used as the language
by default.
LSP linters handle diagnostics automatically, so
the `callback` argument must not be defined.
An optional `completion_filter` callback may be
defined for filtering completion results.
`initialization_options` may be defined to pass
initialization options to the LSP.
`lsp_config` may be defined to pass configuration
settings to the LSP.
`address` A |String| representing an address to connect to,
or a |Funcref| accepting a buffer number and
returning the |String|.
The result can be computed with |ale#command#Run()|.
This argument must only be set if the `lsp` argument
is set to `'socket'`.
`project_root` A |String| representing a path to the project for
the file being checked with the language server, or
a |Funcref| accepting a buffer number and returning
the |String|.
If an empty string is returned, the file will not be
checked at all.
This argument must only be set if the `lsp` argument
is also set to a non-empty string.
`language` A |String| representing the name of the language
being checked, or a |Funcref| accepting a buffer
number and returning the |String|. This string will
be sent to the LSP to tell it what type of language
is being checked.
If a language isn't provided, the language will
default to the value of the filetype given to
|ale#linter#Define|.
`completion_filter` A |String| or |Funcref| for a callback function
accepting a buffer number and a completion item.
The completion item will be a |Dictionary| following
the Language Server Protocol `CompletionItem`
interface as described in the specification,
available online here:
https://microsoft.github.io/language-server-protocol
`aliases` A |List| of aliases for the linter name.
This argument can be set with alternative names for
selecting the linter with |g:ale_linters|. This
setting can make it easier to guess the linter name
by offering a few alternatives.
`initialization_options` A |Dictionary| of initialization options for LSPs,
or a |Funcref| for a callback function accepting
a buffer number and returning the |Dictionary|.
This will be fed (as JSON) to the LSP in the
initialize command.
`lsp_config` A |Dictionary| for configuring a language server,
or a |Funcref| for a callback function accepting
a buffer number and returning the |Dictionary|.
This will be fed (as JSON) to the LSP in the
workspace/didChangeConfiguration command.
If temporary files or directories are created for commands run with
`command`, then these temporary files or directories can be managed by ALE,
for automatic deletion. See |ale#command#ManageFile()| and
|ale#command#ManageDirectory| for more information.
*ale-command-format-strings*
All command strings will be formatted for special character sequences.
Any substring `%s` will be replaced with the full path to the current file
being edited. This format option can be used to pass the exact filename
being edited to a program.
For example: >
'command': 'eslint -f unix --stdin --stdin-filename %s'
<
Any substring `%t` will be replaced with a path to a temporary file. Merely
adding `%t` will cause ALE to create a temporary file containing the
contents of the buffer being checked. All occurrences of `%t` in command
strings will reference the one temporary file. The temporary file will be
created inside a temporary directory, and the entire temporary directory
will be automatically deleted, following the behaviour of
|ale#command#ManageDirectory|. This option can be used for some linters which
do not support reading from stdin.
For example: >
'command': 'ghc -fno-code -v0 %t',
<
Any substring `%e` will be replaced with the escaped executable supplied
with `executable`. This provides a convenient way to define a command string
which needs to include a dynamic executable name, but which is otherwise
static.
For example: >
'command': '%e --some-argument',
<
The character sequence `%%` can be used to emit a literal `%` into a
command, so literal character sequences `%s` and `%t` can be escaped by
using `%%s` and `%%t` instead, etc.
If a callback for a command generates part of a command string which might
possibly contain `%%`, `%s`, `%t`, or `%e`, where the special formatting
behavior is not desired, the |ale#command#EscapeCommandPart()| function can
be used to replace those characters to avoid formatting issues.
*ale-linter-loading-behavior*
*ale-linter-loading-behaviour*
Linters for ALE will be loaded by searching |runtimepath| in the following
format: >
ale_linters/<filetype>/<linter_name>.vim
<
Any linters which exist anywhere in |runtimepath| with that directory
structure will be automatically loaded for the matching |filetype|. Filetypes
containing `.` characters will be split into individual parts, and files
will be loaded for each filetype between the `.` characters.
Linters can be defined from vimrc and other files as long as this function
is loaded first. For example, the following code will define a Hello World
linter in vimrc in Vim 8: >
" Plugins have to be loaded first.
" If you are using a plugin manager, run that first.
packloadall
call ale#linter#Define('vim', {
\ 'name': 'echo-test',
\ 'executable': 'echo',
\ 'command': 'echo hello world',
\ 'callback': {buffer, lines -> map(lines, '{"text": v:val, "lnum": 1}')},
\})
<
ale#linter#Get(filetype) *ale#linter#Get()*
Return all of linters configured for a given filetype as a |List| of
|Dictionary| values in the format specified by |ale#linter#Define()|.
Filetypes may be dot-separated to invoke linters for multiple filetypes:
for instance, the filetype `javascript.jsx` will return linters for both the
`javascript` and `jsx` filetype.
Aliases may be defined in as described in |g:ale_linter_aliases|. Aliases
are applied after dot-separated filetypes are broken up into their
components.
ale#linter#PreventLoading(filetype) *ale#linter#PreventLoading()*
Given a `filetype`, prevent any more linters from being loaded from
|runtimepath| for that filetype. This function can be called from vimrc or
similar to prevent ALE from loading linters.
ale#lsp_linter#SendRequest(buffer, linter_name, message, [Handler])
*ale#lsp_linter#SendRequest()*
Send a custom request to an LSP linter. The arguments are defined as
follows:
`buffer` A valid buffer number.
`linter_name` A |String| identifying an LSP linter that is available and
enabled for the |filetype| of `buffer`.
`message` A |List| in the form `[is_notification, method, parameters]`,
containing three elements:
`is_notification` - an |Integer| that has value 1 if the
request is a notification, 0 otherwise;
`method` - a |String|, identifying an LSP method supported
by `linter`;
`parameters` - a |dictionary| of LSP parameters that are
applicable to `method`.
`Handler` Optional argument, meaningful only when `message[0]` is 0.
A |Funcref| that is called when a response to the request is
received, and takes as unique argument a dictionary
representing the response obtained from the server.
ale#other_source#ShowResults(buffer, linter_name, loclist)
*ale#other_source#ShowResults()*
Show results from another source of information.
`buffer` must be a valid buffer number, and `linter_name` must be a unique
name for identifying another source of information. The `loclist` given
where the problems in a buffer are, and should be provided in the format ALE
uses for regular linter results. See |ale-loclist-format|.
ale#other_source#StartChecking(buffer, linter_name)
*ale#other_source#StartChecking()*
Tell ALE that another source of information has started checking a buffer.
`buffer` must be a valid buffer number, and `linter_name` must be a unique
name for identifying another source of information.
ale#statusline#Count(buffer) *ale#statusline#Count()*
Given the number of a buffer which may have problems, return a |Dictionary|
containing information about the number of problems detected by ALE. The
following keys are supported:
`error` -> The number of problems with type `E` and `sub_type != 'style'`
`warning` -> The number of problems with type `W` and `sub_type != 'style'`
`info` -> The number of problems with type `I`
`style_error` -> The number of problems with type `E` and `sub_type == 'style'`
`style_warning` -> The number of problems with type `W` and `sub_type == 'style'`
`total` -> The total number of problems.
ale#statusline#FirstProblem(buffer, type) *ale#statusline#FirstProblem()*
Returns a copy of the first entry in the `loclist` that matches the supplied
buffer number and problem type. If there is no such entry, an empty dictionary
is returned.
Problem type should be one of the strings listed below:
`error` -> Returns the first `loclist` item with type `E` and
`sub_type != 'style'`
`warning` -> First item with type `W` and `sub_type != 'style'`
`info` -> First item with type `I`
`style_error` -> First item with type `E` and `sub_type == 'style'`
`style_warning` -> First item with type `W` and `sub_type == 'style'`
b:ale_linted *b:ale_linted*
`b:ale_linted` is set to the number of times a buffer has been checked by
ALE after all linters for one lint cycle have finished checking a buffer.
This variable may not be defined until ALE first checks a buffer, so it
should be accessed with |get()| or |getbufvar()|. For example: >
" Print a message indicating how many times ALE has checked this buffer.
echo 'ALE has checked this buffer ' . get(b:, 'ale_linted') . ' time(s).'
" Print 'checked' using getbufvar() if a buffer has been checked.
echo getbufvar(bufnr(''), 'ale_linted', 0) > 0 ? 'checked' : 'not checked'
<
g:ale_want_results_buffer *g:ale_want_results_buffer*
`g:ale_want_results_buffer` is set to the number of the buffer being checked
when the |ALEWantResults| event is signaled. This variable should be read to
figure out which buffer other sources should lint.
ALELintPre *ALELintPre-autocmd*
*ALELintPre*
ALELintPost *ALELintPost-autocmd*
*ALELintPost*
ALEFixPre *ALEFixPre-autocmd*
*ALEFixPre*
ALEFixPost *ALEFixPost-autocmd*
*ALEFixPost*
These |User| autocommands are triggered before and after every lint or fix
cycle. They can be used to update statuslines, send notifications, etc.
The autocmd commands are run with |:silent|, so |:unsilent| is required for
echoing messges.
For example to change the color of the statusline while the linter is
running:
>
augroup ALEProgress
autocmd!
autocmd User ALELintPre hi Statusline ctermfg=darkgrey
autocmd User ALELintPost hi Statusline ctermfg=NONE
augroup END
<
Or to display the progress in the statusline:
>
let s:ale_running = 0
let l:stl .= '%{s:ale_running ? "[linting]" : ""}'
augroup ALEProgress
autocmd!
autocmd User ALELintPre let s:ale_running = 1 | redrawstatus
autocmd User ALELintPost let s:ale_running = 0 | redrawstatus
augroup END
<
ALEJobStarted *ALEJobStarted-autocmd*
*ALEJobStarted*
This |User| autocommand is triggered immediately after a job is successfully
run. This provides better accuracy for checking linter status with
|ale#engine#IsCheckingBuffer()| over |ALELintPre-autocmd|, which is actually
triggered before any linters are executed.
ALEWantResults *ALEWantResults-autocmd*
*ALEWantResults*
This |User| autocommand is triggered before ALE begins a lint cycle. Another
source can respond by calling |ale#other_source#StartChecking()|, and
|ALELintPre| will be signaled thereafter, to allow other plugins to know
that another source is checking the buffer.
|g:ale_want_results_buffer| will be set to the number for a buffer being
checked when the event is signaled, and deleted after the event is done.
This variable should be read to know which buffer to check.
Other plugins can use this event to start checking buffers when ALE events
for checking buffers are triggered.
===============================================================================
10. Special Thanks *ale-special-thanks*
Special thanks to Mark Grealish (https://www.bhalash.com/) for providing ALE's
snazzy looking ale glass logo. Cheers, Mark!
===============================================================================
11. Contact *ale-contact*
If you like this plugin, and wish to get in touch, check out the GitHub
page for issues and more at https://github.com/dense-analysis/ale
If you wish to contact the author of this plugin directly, please feel
free to send an email to devw0rp@gmail.com.
Please drink responsibly, or not at all, which is ironically the preference
of w0rp, who is teetotal.
===============================================================================
vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:
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