1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
|
*ale.txt* For Vim version 8.0. Last change: 2016 October 10
*ale*
ALE - Asynchronous Lint Engine
===============================================================================
CONTENTS *ale-contents*
1. Introduction...............................|ale-introduction|
2. Supported Languages & Tools................|ale-support|
3. Global Options.............................|ale-options|
4. Linter Specific Options....................|ale-linter-options|
4.1. eslint................................|ale-linter-options-eslint|
4.2. flow..................................|ale-linter-options-flow|
4.3. jshint................................|ale-linter-options-jshint|
4.4. phpcs.................................|ale-linter-options-phpcs|
4.5. html-tidy.............................|ale-linter-options-html-tidy|
4.6. c-gcc.................................|ale-linter-options-c-gcc|
4.7. cpp-gcc...............................|ale-linter-options-cpp-gcc|
4.8. fortran-gcc...........................|ale-linter-options-fortran-gcc|
4.9. shell.................................|ale-linter-options-shell|
4.10. shellcheck............................|ale-linter-options-shellcheck|
4.11. vint..................................|ale-linter-options-vint|
4.12. luacheck..............................|ale-linter-options-luacheck|
4.13. c-cppcheck............................|ale-linter-options-c-cppcheck|
4.14. cpp-cppcheck..........................|ale-linter-options-cpp-cppcheck|
4.15. htmlhint..............................|ale-linter-options-htmlhint|
4.16. c-clang...............................|ale-linter-options-c-clang|
5. Commands/Keybinds..........................|ale-commands|
6. API........................................|ale-api|
7. Special Thanks.............................|ale-special-thanks|
8. 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 |timer| features
as a minimum.
ALE supports the following key features:
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.
===============================================================================
2. Supported Languages & Tools *ale-support*
The following languages and tools are supported.
* Ansible: 'ansible-lint'
* Bash: 'shell' (-n flag), 'shellcheck'
* Bourne Shell: 'shell' (-n flag), 'shellcheck'
* C: 'cppcheck', 'gcc', 'clang'
* C++ (filetype cpp): 'cppcheck', 'gcc'
* Chef: 'foodcritic'
* CoffeeScript: 'coffee', 'coffelint'
* CSS: 'csslint'
* Cython (pyrex filetype): 'cython'
* D: 'dmd'
* Elixir: 'credo'
* Fortran: 'gcc'
* Go: 'gofmt -e', 'go vet', 'golint'
* Haskell: 'ghc', 'hlint'
* HTML: 'HTMLHint', 'tidy'
* JavaScript: 'eslint', 'jscs', 'jshint', 'flow'
* JSON: 'jsonlint'
* Lua: 'luacheck'
* Markdown: 'mdl'
* MATLAB: 'mlint'
* Perl: 'perl' (-c flag), 'perlcritic'
* PHP: 'php' (-l flag), 'phpcs'
* Pug: 'pug-lint'
* Python: 'flake8', 'pylint'
* Ruby: 'rubocop'
* SASS: 'sasslint'
* SCSS: 'sasslint', 'scsslint'
* Scala: 'scalac'
* TypeScript: 'tslint'
* Verilog: 'iverilog', 'verilator'
* Vim: 'vint'
* YAML: 'yamllint'
===============================================================================
3. Global Options *ale-options*
g:ale_linters *g: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.
Only the filetypes specified in the dictionary will be limited in terms
of which linters will be run.
This |Dictionary| will be merged with a default dictionary containing the
following values: >
{
\ 'zsh': ['shell'],
\ 'csh': ['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 available for a given filetype can be enabled by using the
string `'all'`: >
let g:ale_linters = {'c': 'all'}
<
g:ale_linter_aliases *g: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: >
{
\ 'zsh': 'sh',
\ 'csh': '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.
g:ale_lint_on_text_changed *g:ale_lint_on_text_changed*
Type: |Number|
Default: `1`
By default, ALE will check files with the various supported programs when
text is changed by using the |TextChanged| event. If this behaviour is not
desired, then this option can be disabled by setting it to 0. The
|g:ale_lint_delay| variable will be used to set a |timer_start()| on a
delay, and each change to a file will continue to call |timer_stop()| and
|timer_start()| repeatedly until the timer ticks by, and the linters will be
run. The checking of files will run in the background, so it should not
inhibit editing files.
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 `1`.
g:ale_lint_on_enter *g:ale_lint_on_enter*
Type: |Number|
Default: `1`
When this option is set to `1`, the |BufEnter| and |BufRead| events 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
behaviour.
g:ale_lint_on_save *g:ale_lint_on_save*
Type: |Number|
Default: `0`
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_set_loclist *g:ale_set_loclist*
Type: |Number|
Default: `1`
When this option is set to `1`, the |loclist| will be populate 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_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 errors and warnings appear in the file. The
`ALEErrorSign` and `ALEWarningSign` highlight groups will be used to provide
highlighting for the signs. The text used for signs can be customised with
the |g:ale_sign_error| and |g:ale_sign_warning| options.
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: `'>>'`
This string can be changed to change the characters used for the sign gutter
for lines which at least one error on them. Lines with both errors and
warnings on them will show the error marker, as errors take precedence.
g:ale_sign_warning *g:ale_sign_warning*
Type: |String|
Default: `'--'`
This string can be changed to change the characters used for the sign gutter
for lines which at least one warning on them.
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_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 behaviour.
The format of the message can be customizable in |g:ale_echo_msg_format|.
g:ale_echo_msg_format *g:ale_echo_msg_format*
Type: |String|
Default: `%s`
This variable defines the format of the echoed message. The `%s` is the
error message itself, and it can contain the following handlers:
- `%linter%` for linter's name
- `%severity%` for the type of severity
Note |`g:ale_echo_cursor`| should be setted to 1
g:ale_echo_msg_error_str *g:ale_echo_msg_error_str*
Type: |String|
Default: `Error`
The string used for error severity in the echoed message.
Note |`g:ale_echo_cursor`| should be set to 1
Note |`g:ale_echo_msg_format`| should contain the `%severity%` handler
g:ale_echo_msg_warning_str *g:ale_echo_msg_warning_str*
Type: |String|
Default: `Warning`
The string used for warning severity in the echoed message.
Note |`g:ale_echo_cursor`| should be set to 1
Note |`g:ale_echo_msg_format`| should contain the `%severity%` handler
g:ale_warn_about_trailing_whitespace *g: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 in signs, the loclist, and echo messages, etc. If these
errors are found to be too irritating while edits are being made, and you
have configured Vim to automatically remove trailing whitespace, then you
can disable these warnings for some linters 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.
g:ale_statusline_format *g:ale_statusline_format*
Type: |List|
Default: `['%d error(s)', '%d warning(s)', 'OK']`
This variable defines the format of |`ale#statusline#status()`| output.
- The 1st element is for errors
- The 2nd element is for warnings
- The 3rd element is for when no errors are detected
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|.
===============================================================================
4. Linter Specific Options *ale-linter-options*
Some linters have specific options which can be configured for each of them,
for customising their behaviour.
-------------------------------------------------------------------------------
4.1. eslint *ale-linter-options-eslint*
g:ale_javascript_eslint_executable *g:ale_javascript_eslint_executable*
Type: |String|
Default: `'eslint'`
ALE will first discover the eslint path in an ancestor node_modules
directory. If no such path exists, this variable will be used instead.
This variable can be set to change the path to eslint. If you have eslint_d
installed, you can set this option to use eslint_d instead.
If you wish to use only a globally installed version of eslint, set
|g:ale_javascript_eslint_use_global| to `1`.
g:ale_javascript_eslint_use_global *g:ale_javascript_eslint_use_global*
Type: |String|
Default: `0`
This variable controls whether or not ALE will search for a local path for
eslint first. If this variable is set to `1`, then ALE will always use the
global version of eslint, in preference to locally installed versions of
eslint in node_modules.
-------------------------------------------------------------------------------
4.2. flow *ale-linter-options-flow*
g:ale_javascript_flow_executable *g:ale_javascript_flow_executable*
Type: |String|
Default: `'flow'`
ALE will first discover the flow path in an ancestor node_modules
directory. If no such path exists, this variable will be used instead.
If you wish to use only a globally installed version of flow, set
|g:ale_javascript_flow_use_global| to `1`.
g:ale_javascript_flow_use_global *g:ale_javascript_flow_use_global*
Type: |String|
Default: `0`
This variable controls whether or not ALE will search for a local path for
flow first. If this variable is set to `1`, then ALE will always use the
global version of flow, in preference to locally installed versions of
flow in node_modules.
-------------------------------------------------------------------------------
4.3. jshint *ale-linter-options-jshint*
g:ale_javascript_jshint_executable *g:ale_javascript_jshint_executable*
Type: |String|
Default: `'jshint'`
ALE will first discover the jshint path in an ancestor node_modules
directory. If no such path exists, this variable will be used instead.
This variable can be changed to change the path to jshint.
If you wish to use only a globally installed version of jshint, set
|g:ale_javascript_jshint_use_global| to `1`.
g:ale_javascript_jshint_use_global *g:ale_javascript_jshint_use_global*
Type: |String|
Default: `0`
This variable controls whether or not ALE will search for a local path for
jshint first. If this variable is set to `1`, then ALE will always use the
global version of jshint, in preference to locally installed versions of
jshint in node_modules.
-------------------------------------------------------------------------------
4.4. phpcs *ale-linter-options-phpcs*
g:ale_php_phpcs_standard *g:ale_php_phpcs_standard*
Type: |String|
Default: `''`
This variable can be set to specify the coding standard used by phpcs. If no
coding standard is specified, phpcs will default to checking against the
PEAR coding standard, or the standard you have set as the default.
-------------------------------------------------------------------------------
4.5. html-tidy *ale-linter-options-html-tidy*
g:ale_html_tidy_executable *g:ale_html_tidy_executable*
Type: |String|
Default: `'tidy'`
This variable can be changed to change the path to tidy.
g:ale_html_tidy_args *g:ale_html_tidy_args*
Type: |String|
Default: `'-q -e -language en'`
This variable can be changed to change the arguments provided to the
executable.
ALE will attempt to automatically detect the appropriate file encoding to
provide to html-tidy, and fall back to UTF-8 when encoding detection fails.
The recognized file encodings are as follows: ascii, big5, cp1252 (win1252),
cp850 (ibm858), cp932 (shiftjis), iso-2022-jp (iso-2022), latin1, macroman
(mac), sjis (shiftjis), utf-16le, utf-16, utf-8
-------------------------------------------------------------------------------
4.6. c-gcc *ale-linter-options-c-gcc*
g:ale_c_gcc_options *g:ale_c_gcc_options*
Type: |String|
Default: `'-std=c11 -Wall'`
This variable can be change to modify flags given to gcc.
-------------------------------------------------------------------------------
4.7. cpp-gcc *ale-linter-options-cpp-gcc*
g:ale_cpp_gcc_options *g:ale_cpp_gcc_options*
Type: |String|
Default: `'-std=c++14 -Wall'`
This variable can be changed to modify flags given to gcc.
-------------------------------------------------------------------------------
4.8. fortran-gcc *ale-linter-options-fortran-gcc*
g:ale_fortran_gcc_options *g:ale_fortran_gcc_options*
Type: |String|
Default: `'-Wall'`
This variable can be changed to modify flags given to gcc.
-------------------------------------------------------------------------------
4.9. shell *ale-linter-options-shell*
g:ale_linters_sh_shell_default_shell *g:ale_linters_sh_shell_default_shell*
Type: |String|
Default: The current shell (`$SHELL`) or `'bash'` if that cannot be read.
When ALE runs the linter for shells with the `-n` flag, it will attempt to
read the shell from the shebang (`#!`) line from the shell script to
determine the shell program to run. When this detection fails, this variable
will be used instead.
-------------------------------------------------------------------------------
4.10. shellcheck *ale-linter-options-shellcheck*
g:ale_linters_sh_shellckeck_exclusions *g:ale_linters_sh_shellckeck_exclusions*
Type: |String|
Default: `''`
Set this variable to exclude test(s) for shellcheck (-e/--exclude option).
-------------------------------------------------------------------------------
4.11. vint *ale-linter-options-vint*
g:ale_vim_vint_show_style_issues *g:ale_vim_vint_show_style_issues*
Type: |Number|
Default: `1`
This variable will enable/disable style issues for Vint. When this option
is disabled, only warnings and errors which are not purely style issues
will be reported.
-------------------------------------------------------------------------------
4.12. luacheck *ale-linter-options-luacheck*
g:ale_lua_luacheck_executable *g:ale_lua_luacheck_executable*
Type: |String|
Default: `'luacheck'`
This variable can be changed to change the path to luacheck.
-------------------------------------------------------------------------------
4.13. c-cppcheck *ale-linter-options-c-cppcheck*
g:ale_c_cppcheck_options *g:ale_c_cppcheck_options*
Type: |String|
Default: `'--enable=style'`
This variable can be changed to modify flags given to cppcheck.
-------------------------------------------------------------------------------
4.14. cpp-cppcheck *ale-linter-options-cpp-cppcheck*
g:ale_cpp_cppcheck_options *g:ale_cpp_cppcheck_options*
Type: |String|
Default: `'--enable=style'`
This variable can be changed to modify flags given to cppcheck.
-------------------------------------------------------------------------------
4.15. htmlhint *ale-linter-options-htmlhint*
g:ale_html_htmlhint_options *g:ale_html_htmlhint_options*
Type: |String|
Default: `'--format=unix'`
This variable can be changed to modify flags given to HTMLHint.
-------------------------------------------------------------------------------
4.16. c-clang *ale-linter-options-c-clang*
g:ale_c_clang_options *g:ale_c_clang_options*
Type: |String|
Default: `'-std=c11 -Wall'`
This variable can be change to modify flags given to clang.
===============================================================================
5. Commands/Keybinds *ale-commands*
ALEPrevious *ALEPrevious*
ALEPreviousWrap *ALEPreviousWrap*
ALENext *ALENext*
ALENextWrap *ALENextWrap*
*ale-navigation-commands*
Move between warnings or errors in a buffer.
`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.
The following |<Plug>| mappings are defined for the commands: >
<Plug>(ale_previous) - ALEPrevious
<Plug>(ale_previous_wrap) - ALEPreviousWrap
<Plug>(ale_next) - ALENext
<Plug>(ale_next_wrap) - ALENextWrap
<
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)
<
===============================================================================
6. API *ale-api*
ale#Queue(delay) *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
ale#engine#GetLoclist(buffer) *ale#engine#GetLoclist()*
Given a buffer number, this function will rerurn the list of warnings and
errors reported by ALE for a given buffer in the format accepted by
|setqflist()|.
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.
`executable` A |String| naming the executable itself which
will be run. This value will be used to check if the
program requested is installed or not.
Either this or the `executable_callback` argument
must be provided.
`executable_callback ` A |String| or |Funcref| for a callback function
accepting a buffer number. A |String| should be
returned for the executable to check. This can be
used in place of `executable` when more complicated
processing is needed.
`command` A |String| for an executable to run asynchronously.
This command will be fed the lines from the buffer to
check, and will produce the lines of output given to
the `callback`.
Either this or the `command_callback` argument must
be provided.
`command_callback` A |String| or |Funcref| for a callback function
accepting a buffer number. A |String| should be
returned for a command to run. This can be used in
place of `command` when more complicated processing
is needed.
`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.
Some programs for checking for errors are not capable of receiving input
from stdin, as is required by ALE. To remedy this, a wrapper script is
provided named in the variable |g:ale#util#stdin_wrapper|. This variable
can be called with the regular arguments for any command to forward data
from stdin to the program, by way of creating a temporary file. The first
argument to the stdin wrapper must be a file extension to save the temporary
file with, and the following arguments are the command as normal.
For example: >
'command': g:ale#util#stdin_wrapper . ' .hs ghc -fno-code -v0',
<
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-seperated 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-seperated filetypes are broken up into their
components.
ale#statusline#Status() *ale#statusline#Status()*
Return a formatted string that can be added to the statusline.
The output's format is defined in |`g:ale_statusline_format`|.
To enable it, the following should be present in your |statusline| settings: >
%{ale#statusline#Status()}
g:ale#util#stdin_wrapper *g:ale#util#stdin_wrapper*
This variable names a wrapper script for sending stdin input to programs
which cannot accept input via stdin. See |ale#linter#Define()| for more.
ALELint *ALELint*
This |User| autocommand is triggered by ALE every time it completes a lint
operation. It can be used to update statuslines, send notifications, or
complete any other operation that needs to be done after a lint run.
It can be used simply:
autocmd User ALELint echom "ALE run!"
===============================================================================
7. 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!
===============================================================================
8. 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/w0rp/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:
|