Consider a file like
```
#lang racket
(require racket/gui)
```
Type `Go(eventspace-`.
Pressing <C-x><C-o> to trigger omnicomplete should suggest
```
eventspace-handler-thread
eventspace-shutdown?
eventspace-event-evt
```
It does not (instead producing "top-level" completions, as if
`(eventspace-` wasn't even there).
Debugging, place the cursor on a space _after_. Now
`ale#completion#OmniFunc(1, '')` correctly returns `1`, but when given
`(0, 'eventspace-')` it returns either the empty list or generic
completion results as described above. I'm not entirely sure of the
mechanism, but it seems that `b:ale_completion_info.prefix` is the key,
and that this is set by `ale#completion#GetPrefix`. Calling
`ale#completion#GetPrefix('racket', line('.'), col('.'))` returned `''`!
Now, it returns `eventspace-` and the completions work correctly again.
Ref #4293, #4186, #3870
The default `omni_start_map` is too restrictive for Lisps and Schemes
like Racket, which permit hyphens (among other special characters).
As recorded in #3870, trying to complete `file-name-from-path` when
typing `file-name<C-x><C-o>` would give completions like `namespace`
because the hyphen is ignored to find the start of the word for
completion.
Now the racket filetype searches for the start using the keyword class
`\k`, which is more precise.
* implement vim popups for preview
Details on implementation
-------------------------
- we make use of the |popupwin| api
- we split implementations (Nvim* vs. Vim* prefix) and call the right
one based on has('nvim')
- we follow a similar structure in each function, using the relevant API
- popup_list, win_execute, popup_settext in VimShow
- popup_create in VimCreate
- popup_close in VimClose
Some differences
----------------
- we DON'T have VimPrepareWindowContent because we use arguments to
popup_create for borders, padding, etc., and it also takes care of
buffer creation.
- we follow the protocol of setting and using w:preview for information,
but we only need the ID
- InsertEnter is the only autocommand required, because of
popup_create's moved argument. Any cursor movement with 'any' will
close the popup. This in turns means VimClose is only called from
InsertMode, so no mode-restoration necessary
- we don't tweak too much in the buffer because vim's popup buffers
already have most relevant settings and aren't editable without
calling popup functions.
- I enabled scrollbars, close buttons, dragging, and resizing
- vim popups get as big as they need to by default, so no worrying about
truncating/hiding/size
Note: we might want to consider changing w:preview to w:ale_preview to
avoid clashes if someone else tries to use the same variable
* floating window: document that vim supports it
* lint: fix indent/cont. lines
* racket: support racket-langserver lsp
* racket-langserver: find highest dir with init.rkt
* autoload/ale/racket: re-indent to 4 spaces
* racket: lint: sort supported tools
* racket: lint: function!
This is _not_ needed anymore, but the lint wants it. See :help E127
* racket-langserver: do not use new dict format
* racket: lint: use snake_case
* add tests for racket-langserver
* racket-langserver tests: correct result values
This allows the location list from one buffer to point to an issue in
another; previously, the error message would be shown but with no way to
jump to it.
* master: (133 commits)
Add rnix-lsp for Nix diagnostics and completion
add spectral support for json
add spectral handler
add spectral linter for yaml
doc: Fix linter issues
doc: Add documentation for Deno
feat: Add Deno lsp support
feat: Add Deno fmt fixer
Add document for apkbuild filetype
Add tests for atools handler, basic and dealing with Error and Warning
Test default linters for apkbuild
Document new default linters for apkbuild
Make apkbuild_lint and secfixes_check default for apkbuild filetype
document support for apkbuild-lint and secfixes-check for apkbuild
Add linters for apkbuild-lint and secfixes-check from atools
Add handler for the output of atools
Fix typos
Add command callback tests
Add support for standalone files
Fix linting errors
...
* origin/master: (40 commits)
fix: correct suggested filetype for yamlfix
feat: add yamlfix fixer
Use _config for LSP config options
Add support for R languageserver (#3370)
Fix 3103 - add shellcheck shell directive detection. (#3216)
Added the Vundle command in installation instructions (#3400)
Adds support for Tlint - A Tighten Opinionated PHP Linter (#3291)
Add php phpcbf options (#3383)
Use has('gui_running') instead of has('gui')
Close#2727 - Add a hover-only setting for balloons
Fix#3332 - Modify everything for rename/actions
Add a missing blank line in documentation
Add luafmt fixer (#3289)
#3442 Fix code fix clangd issue
Close#1466 - Add GVIM refactor menu support
Look for node packages in .yarn/sdks as well
Update documentation for code actions and rename
cmp forwards, and reverse the code actions
Support for LSP/tsserver Code Actions (#3437)
Move the test for buffer-local variables
...
* origin/master:
Add tests for maven.vim file
Fix grammatical error in doc
Add maven helper file; use maven wrapper if available instead of global 'mvn' executable
fix lint, fix variable semantics and update tests
bibclean: update matchlist reges for bibclean > v2.11.4
Update rubocop_auto_correct_all tag
A recent(?) update to swipl changed the error format from
Warning: some.pl:2:
Singleton variables: [Y]
to
Warning: some.pl:2:
Warning: Singleton variables: [Y]
The old error handler doesn't report the correct line numbers and
messages on the old format.
I've chosen to add a function that covers the second case and detect it,
rather than rewrite the current function. This way, both versions should
be able to live together.
---
Example file that demonstrates the issue (some.pl above):
```
% vim: ft=prolog
ii(X, Y) :- X.
```
---
