When fiddling with paths in a :o prompt, one usually would want Ctrl-W to erase a path segment
rather than the whole path. This is how Ctrl-W works in e.g. (neo)vim out of the box.
During a single HighlightEvent::Source, the highlight spans do not
change and we can merge them into a single style at the beginning
of the event and use it instead of re-computing it for every grapheme
* Add runtime language configuration (#1794)
* Add set-language typable command to change the language of current buffer.
* Add completer for available language options.
* Update set-language to refresh language server as well
* Add language id based config lookup on `syntax::Loader`.
* Add `Document::set_language3` to set programming language based on language
id.
* Update `Editor::refresh_language_server` to try language detection only if
language is not already set.
* Remove language detection from Editor::refresh_language_server
* Move document language detection to where the scratch buffer is saved.
* Rename Document::set_language3 to Document::set_language_by_language_id.
* Remove unnecessary clone in completers::language
Currently, the picker's re-using a few bindings which are also present
in the prompt. This causes some editing behaviours to not function on
the picker.
**Ctrl + k** and **Ctrl + j**
This should kill till the end of the line on prompt, but is overridden
by the picker for scrolling. Since there are redundancies (`Ctrl + p`,
`Ctrl + n`), we can remove it from picker.
**Ctrl + f** and **Ctrl + b**
This are used by the prompt for back/forward movement. We could modify
it to be Ctrl + d and Ctrl + u, to match the `vim` behaviour.
This avoids costly conversions via byte_to_char (which are then
reversed back into bytes internally in Ropey).
Reduces time spent in slice/byte_to_char from ~24% to ~5%.
When the picker results output is empty, movement actions result in a panic:
```
thread 'main' panicked at 'attempt to calculate the remainder with a divisor of zero', helix-term/src/ui/picker.rs:420:31
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```
This could be a no-op instead when the matches length is zero.
This is a rather large refactor that moves most of the code for
loading, fetching, and building grammars into a new helix-loader
module. This works well with the [[grammars]] syntax for
languages.toml defined earlier: we only have to depend on the types
for GrammarConfiguration in helix-loader and can leave all the
[[language]] entries for helix-core.
* add basic completion replay
* use transaction as the last completion
* completion replay only on trigger position
* cache changes in CompletionAction
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
* Show infobox to hint textobjects with `mi` and `ma`
* Add note to infobox than any pair of characters will work too
The wording could probably be a little more clear, but I wanted to
keep it short but still accurate.
* Don't allocate a vec for the static help text
* Fix bug where `mi<esc>` would swallow next input and persist infobox
* Better help text for arbitrary pair matching in textobject selection
* Add way to add fake pending key data below status, use with `mi`/`ma`
This is a bit hacky as it makes use of global state which will end
up managed in multiple places, but has precedent in the way autoinfo
works. There should probably be a bigger refactor to handle this
kind of state better.
* Return early on anything other than `mi` and `ma` for autoinfo
* Remove "ascii" from help text with `mi` and `ma`
* Update helix-term/src/ui/editor.rs
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
* Refactor file picker filetype filter logic to remove panic, make clearer
An unwrap was unneccesarily present due to a prior contribution of mine
which was before I had any understanding of error handling in Rust. I've
also swapped a match for an if let, as was originally suggested in the
original pull request adding filetype filtering, but was merged before I
could address.
* Add some comments to the file picker code for clarity
* Switch to expect instead of ignoring type def error
* ignore Enter keypress when menu has no selection
supersedes #1622
Builds on the work in #1285. I want to allow Enter to create a newline
when there is no selection in the autocomplete menu.
This occurs somewhat often when using LSP autocomplete in Elixir which
uses `do/end` blocks (and I set the autocomplete menu delay to 0 which
exacerbates the problem):
```elixir
defmodule MyModule do
def do_foo(x) do
x
end
def other_function(y) do|
end
```
Here the cursor is `|` in insert mode. The LSP suggests `do_foo` but I
want to create a newline. Hitting Enter currently closes the menu,
so I end up having to hit Enter twice when the module contains any
local with a `do` prefix, which can be inconsistent. With this change,
we ignore the Enter keypress to end up creating the newline in this case.
* pop compositor layer when ignoring Enter keypress
* move closing function out of consumed event result closure
* explicitly label close_fn as an 'Option<Callback>'
* Add Event::Used to use event callback without consuming
* Close popup if contents ignored event
* collect event results before executing callbacks
* don't add new result variant, use Ignored(..) instead
* break in match cases
* Make auto_close configurable
* fix merge
* auto close hover popups
* fix formatting
Some users (including myself) want to turn off filtering of files
prefixed with `.`, as they are often useful to edit. For example, `.env`
files, configuration for linters `.eslint.json` and the like.
* feat(commands): command palette
Add new command to display command pallete that can be used
to discover and execute available commands.
Fixes: https://github.com/helix-editor/helix/issues/559
* Make picker take the whole context, not just editor
* Bind command pallete
* Typable commands also in the palette
* Show key bindings for commands
* Fix tests, small refactor
* Refactor keymap mapping, fix typo
* Ignore sequence key bindings for now
* Apply suggestions
* Fix lint issues in tests
* Fix after rebase
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
