In my testing this takes around 3-4ms in terminals that support the
enhanced keyboard protocol (Kitty, WezTerm) and a few hundred
microseconds in terminals that don't (st, Alacritty).
Wether the host terminal supports keyboard enhancement can be cached
for the lifetime of a Helix session.
Caching this lookup prevents a potential lockup within crossterm's
event reading system where the query for the keyboard enhancement
support waits on the next keyboard event, which can happen if the
crossterm event stream is checked by `tokio::select!` in another
thread.
This moves the `Application::claim_term` and
`helix-term::application::restore_term` functions into the helix-tui
crate. How the terminal should be claimed and restored is a TUI concern
and is implemented differently through different TUI backends.
This cleans out a lot of crossterm and TUI code in Application and
makes it easier to modify claim/restore based on information we query
from the terminal host. The child commit will take advantage of this
to cache the check for whether the host terminal supports the keyboard
enhancement protocol. Without this change, caching that information
takes much more code which is not easily reusable for anything else.
The code to restore the terminal is somewhat duplicated by this patch:
we want to restore the terminal in cases of panics. Panic handler hooks
must live for `'static` and the Application's terminal does not.
This refactors the snippet logic to be largely unaware of the rest of
the document. The completion application logic is moved into
generate_transaction_from_snippet which is extended to support
dynamically computing replacement text.
When accepting a snippet completion we automatically delete the
placeholders for now as doing so manual is quite cumbersome. In the
future we should keep these as a mark + virtual text that is
automatically removed once the cursor moves there.
Parser-combinators are one of the simpler tools for building ad-hoc
parsers. They're a good fit because they are...
* Small: each parser / parser-combinator is around 10 LOC.
* Functional: helix_core strives to be a functional set of utilities
usable throughout the rest of the editor.
* Flexible: use them to build any sort of ad-hoc parser. In the child
commit, we'll parse LSP Snippet syntax using these new parser
combinators.
Why not use an existing parser-combinator crate? Existing popular
parser-combinator crates have histories of making breaking changes
(for example nom and combine).
> Implementation note: I tried to not introduce a new trait since the
> types can be expressed in terms of `impl Fn`s. The trait is necessary
> to build `seq` implementations without a proc macro though, and also
> allows us to use `&'static str`s very conveniently: see the trait
> implementation for `&'static str`.
Tree-sitter has some unreleased improvements that can speed up small
queries and prevent hangs due to error recovery in some parsers. This
change pins tree-sitter to the latest master.
Neovim also pins tree-sitter to a commit on master.
* Rewrite and refactor all documentation
* Rewrite and refactor the guides
* update runtime directory instructions for windows
* Update the Ubuntu 3rd party repo section with 22.10
* Merge from upstream
* Rewrite and refactor all documentation
* Apply suggestions from code review
Apply the suggestions that can be committed from the GitHub web interface.
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* Add Windows themes folder
Co-authored-by: digidoor <37601466+digidoor@users.noreply.github.com>
* Apply the rest of the suggestions from the code review
* Revert "Apply the rest of the suggestions from the code review"
This reverts commit 498be1b7a1aec3ff567b95130148628beeef9b77.
* Revert "Merge branch 'rewrite-and-refactor-all-documentation' of github.com:David-Else/helix into rewrite-and-refactor-all-documentation"
This reverts commit 7c8404248ffef73b80b9051d5a4359c5bcfa5d1a, reversing
changes made to d932969cfc9fadda12a74cc01665919dee7152fb.
* Apply code review suggestions
* Changes after re-reading all documents
* Missed a full stop
* Code review suggestions and remove macOS and Windows specific sections
* Add OpenBSD to heading
* Add back macOS and Windows sections and further simplify and improve
* Change wording to nightly
* Remove README installation section and turn into a link
* Simplify building from source and follow code review suggestions
* Code review revisions
* Fix copy paste mistake
* Apply the latest code review suggestions
* More small code review items
* Change minor modes for code review
* Fix link and typos
* Add note that you need a c++ compiler to install the tree-sitter grammars
* Add pacman example
* Make sure all headings are lower case
* Revert to the original passage adding a reference to Windows that was missing
* Update book/src/guides/adding_languages.md
Fix grammar typo
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* Update book/src/install.md
Fix tree sitter typo
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* Remove TOC links to main heading
---------
Co-authored-by: CptPotato <3957610+CptPotato@users.noreply.github.com>
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
Co-authored-by: digidoor <37601466+digidoor@users.noreply.github.com>
Add a restart debug session command, which would issue a
[Restart Request][1], if the debugger supports it and a session is
running. It uses the same arguments and requests used to start the
initial session, when recreating it.
It builds upon #5532, making use of the changes to the termination
workflow of a session.
[1]: https://microsoft.github.io/debug-adapter-protocol/specification#Requests_RestartCloses: #5594
Signed-off-by: Filip Dutescu <filip.dutescu@gmail.com>
* Fix lack of space for popup crash
* Fix saturating -> wrapping
* Fix wrapping -> saturating (I am an idiot)
* Remove useless "mut" in helix-tui/src/buffer.rs
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* Remove redundant bound-check
* Return bound-check back
* Add bound-check for set_style
* Remove set_style bound-check
* Revert bound-check
---------
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
This fixes breakage when installing `helix` due to an incorrect usage of
`as_ref()` when interacting with `bstr` in the `gitoxide` codebase.
However, this upgrade also requires a higher rustc version, as `gitoxide`
recently updated its `windows` crate version.
Using the picker with syntax highlighting the
fallback `ui.selection` makes a lot of text,
especially for the light variant, hard to read.
Instead, use a lighter background for highlights
This is a workaround for a freeze when suspending Helix with C-z on
non-Windows systems. The check for the keyboard enhancement protocol
locks up crossterm's internal event reading/polling system by trying to
set up multiple concurrent readers. `input_stream.next()` sets up one
reader looking for regular crossterm events while the
`supports_keyboard_enhancement` query sets up another looking for
internal events. The latter hangs for two seconds or until the former
yields an event. By handling signals first we don't lock up the mutex
by trying to read keyboard events.
Fixes a regression introduced in #5420 where a scrolloff of `x - 1`
was used instead if `x` at the bottom of the screen. This was
especially problematic if the scrolloff was set to `0` in that case
the scrolloff behaved as tough set to `-1` and the cursor disappeared
from the view if scrolled to the botoom.
Since crossterm 0.26.x, we receive press/release keyboard events on
Windows always. We can ignore the release events though to emulate
the behavior of keyboard input on Windows on crossterm 0.25.x.
