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Start swapping from termwiz to crossterm + async.

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Blaž Hrastnik 4 years ago
parent 1984410ac9
commit 6905ff03c2
6 changed files with 443 additions and 477 deletions
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Cargo.lock generated
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checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
checksum = "6b0deb65f46e873ba8aa7c6a8dbe3f23cb1bf59c339a81a1d56361dde4d66ac8"
dependencies = [
"rand_core",
"crossbeam-utils",
"futures-io",
"futures-sink",
"futures-util",
]
[[package]]
name = "rand_pcg"
version = "0.2.1"
name = "proc-macro-hack"
version = "0.5.16"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "16abd0c1b639e9eb4d7c50c0b8100b0d0f849be2349829c740fe8e6eb4816429"
dependencies = [
"rand_core",
]
checksum = "7e0456befd48169b9f13ef0f0ad46d492cf9d2dbb918bcf38e01eed4ce3ec5e4"
[[package]]
name = "redox_syscall"
version = "0.1.56"
name = "proc-macro-nested"
version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
checksum = "8e946095f9d3ed29ec38de908c22f95d9ac008e424c7bcae54c75a79c527c694"
[[package]]
name = "redox_users"
version = "0.3.4"
name = "proc-macro2"
version = "1.0.13"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09b23093265f8d200fa7b4c2c76297f47e681c655f6f1285a8780d6a022f7431"
checksum = "53f5ffe53a6b28e37c9c1ce74893477864d64f74778a93a4beb43c8fa167f639"
dependencies = [
"getrandom",
"redox_syscall",
"rust-argon2",
"unicode-xid",
]
[[package]]
name = "regex"
version = "1.3.7"
name = "quote"
version = "1.0.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a6020f034922e3194c711b82a627453881bc4682166cabb07134a10c26ba7692"
checksum = "54a21852a652ad6f610c9510194f398ff6f8692e334fd1145fed931f7fbe44ea"
dependencies = [
"aho-corasick",
"memchr",
"regex-syntax",
"thread_local",
"proc-macro2",
]
[[package]]
name = "regex-syntax"
version = "0.6.17"
name = "redox_syscall"
version = "0.1.56"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7fe5bd57d1d7414c6b5ed48563a2c855d995ff777729dcd91c369ec7fea395ae"
checksum = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
[[package]]
name = "ropey"
version = "1.1.0"
source = "git+https://github.com/cessen/ropey#083c34949274ef9800267e6bc64b76a45e401807"
dependencies = [
"smallvec 1.4.0",
"smallvec",
]
[[package]]
name = "rust-argon2"
version = "0.7.0"
name = "scoped-tls-hkt"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2bc8af4bda8e1ff4932523b94d3dd20ee30a87232323eda55903ffd71d2fb017"
dependencies = [
"base64 0.11.0",
"blake2b_simd",
"constant_time_eq",
"crossbeam-utils",
]
[[package]]
name = "semver"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
dependencies = [
"semver-parser",
]
checksum = "c2e9d7eaddb227e8fbaaa71136ae0e1e913ca159b86c7da82f3e8f0044ad3a63"
[[package]]
name = "semver-parser"
version = "0.7.0"
name = "scopeguard"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
[[package]]
name = "signal-hook"
@ -520,6 +573,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8ff2db2112d6c761e12522c65f7768548bd6e8cd23d2a9dae162520626629bd6"
dependencies = [
"libc",
"mio",
"signal-hook-registry",
]
@ -534,35 +588,46 @@ dependencies = [
]
[[package]]
name = "siphasher"
version = "0.3.3"
name = "slab"
version = "0.4.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fa8f3741c7372e75519bd9346068370c9cdaabcc1f9599cbcf2a2719352286b7"
checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
[[package]]
name = "smallvec"
version = "0.6.13"
version = "1.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f7b0758c52e15a8b5e3691eae6cc559f08eee9406e548a4477ba4e67770a82b6"
dependencies = [
"maybe-uninit",
]
checksum = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
[[package]]
name = "smallvec"
version = "1.4.0"
name = "smol"
version = "0.1.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
checksum = "686c634ad1873fffef6aed20f180eede424fbf3bb31802394c90fd7335a661b7"
dependencies = [
"async-task",
"crossbeam",
"futures-io",
"futures-util",
"nix",
"once_cell",
"piper",
"scoped-tls-hkt",
"slab",
"socket2",
"wepoll-binding",
]
[[package]]
name = "syn"
version = "0.15.44"
name = "socket2"
version = "0.3.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
checksum = "03088793f677dce356f3ccc2edb1b314ad191ab702a5de3faf49304f7e104918"
dependencies = [
"proc-macro2 0.4.30",
"quote 0.6.13",
"unicode-xid 0.1.0",
"cfg-if",
"libc",
"redox_syscall",
"winapi",
]
[[package]]
@ -571,9 +636,9 @@ version = "1.0.22"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1425de3c33b0941002740a420b1a906a350b88d08b82b2c8a01035a3f9447bac"
dependencies = [
"proc-macro2 1.0.13",
"quote 1.0.6",
"unicode-xid 0.2.0",
"proc-macro2",
"quote",
"unicode-xid",
]
[[package]]
@ -586,85 +651,12 @@ dependencies = [
"utf-8",
]
[[package]]
name = "terminfo"
version = "0.7.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "76971977e6121664ec1b960d1313aacfa75642adc93b9d4d53b247bd4cb1747e"
dependencies = [
"dirs",
"fnv",
"nom",
"phf",
"phf_codegen",
]
[[package]]
name = "termios"
version = "0.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6f0fcee7b24a25675de40d5bb4de6e41b0df07bc9856295e7e2b3a3600c400c2"
dependencies = [
"libc",
]
[[package]]
name = "termwiz"
version = "0.9.0"
dependencies = [
"anyhow",
"base64 0.10.1",
"bitflags",
"cassowary",
"filedescriptor",
"fnv",
"lazy_static",
"libc",
"log",
"memmem",
"num-derive",
"num-traits",
"ordered-float",
"regex",
"semver",
"signal-hook",
"smallvec 0.6.13",
"terminfo",
"termios",
"unicode-segmentation",
"unicode-width",
"vtparse",
"winapi",
"xi-unicode",
]
[[package]]
name = "thread_local"
version = "1.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
dependencies = [
"lazy_static",
]
[[package]]
name = "unicode-segmentation"
version = "1.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
[[package]]
name = "unicode-width"
version = "0.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
[[package]]
name = "unicode-xid"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
[[package]]
name = "unicode-xid"
version = "0.2.0"
@ -678,29 +670,29 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "05e42f7c18b8f902290b009cde6d651262f956c98bc51bca4cd1d511c9cd85c7"
[[package]]
name = "utf8parse"
version = "0.1.1"
name = "void"
version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8772a4ccbb4e89959023bc5b7cb8623a795caa7092d99f3aa9501b9484d4557d"
checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
[[package]]
name = "version_check"
version = "0.9.1"
name = "wepoll-binding"
version = "2.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "078775d0255232fb988e6fccf26ddc9d1ac274299aaedcedce21c6f72cc533ce"
[[package]]
name = "vtparse"
version = "0.2.2"
checksum = "374fff4ff9701ff8b6ad0d14bacd3156c44063632d8c136186ff5967d48999a7"
dependencies = [
"utf8parse",
"bitflags",
"wepoll-sys",
]
[[package]]
name = "wasi"
version = "0.9.0+wasi-snapshot-preview1"
name = "wepoll-sys"
version = "2.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
checksum = "9082a777aed991f6769e2b654aa0cb29f1c3d615daf009829b07b66c7aff6a24"
dependencies = [
"cc",
]
[[package]]
name = "winapi"
@ -723,9 +715,3 @@ name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
[[package]]
name = "xi-unicode"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7395cdb9d0a6219fa0ea77d08c946adf9c1984c72fcd443ace30365f3daadef7"

6
helix-core/src/state.rs
Unescape Escape View File

@ -18,7 +18,11 @@ impl State {
// TODO: buf/selection accessors
// update/transact
// update/transact:
// update(desc) => transaction ? transaction.doc() for applied doc
// transaction.apply(doc)
// doc.transact(fn -> ... end)
// replaceSelection (transaction that replaces selection)
// changeByRange
// changes

33
helix-core/src/transaction.rs
Unescape Escape View File

@ -1,19 +1,3 @@
// pub struct Change {
// from: usize,
// to: usize,
// insert: Option<String>,
// }
// 40 bytes (8 + 24 + 8) -> strings are really big 24 as String, 16 as &str
// pub struct Change {
// /// old extent
// old_extent: usize,
// /// inserted text, new extent equal to insert length
// insert: Option<String>,
// /// distance from the previous change
// distance: usize,
// }
use crate::{Buffer, Rope, Selection, Tendril};
// TODO: divided into three different operations, I sort of like having just
@ -33,11 +17,11 @@ pub enum Change {
Insert(Tendril),
}
impl Change {
pub fn new(from: usize, to: usize, insert: Option<Tendril>) {
// old_extent, new_extent, insert
}
}
// impl Change {
// pub fn new(from: usize, to: usize, insert: Option<Tendril>) {
// // old_extent, new_extent, insert
// }
// }
#[derive(Copy, Clone, PartialEq, Eq)]
pub enum Assoc {
@ -46,13 +30,8 @@ pub enum Assoc {
}
// ChangeSpec = Change | ChangeSet | Vec<Change>
// ChangeDesc as a ChangeSet without text: can't be applied, cheaper to store.
// ChangeSet = ChangeDesc with Text
#[derive(Debug)]
pub struct ChangeSet {
// basically Vec<ChangeDesc> where ChangeDesc = (current len, replacement len?)
// (0, n>0) for insertion, (n>0, 0) for deletion, (>0, >0) for replacement
// sections: Vec<(usize, isize)>,
changes: Vec<Change>,
/// The required document length. Will refuse to apply changes unless it matches.
len: usize,
@ -341,6 +320,8 @@ pub struct Transaction {
// scroll_into_view
}
impl Transaction {}
#[cfg(test)]
mod test {
use super::*;

17
helix-term/Cargo.toml
Unescape Escape View File

@ -10,13 +10,22 @@ edition = "2018"
name = "hx"
path = "src/main.rs"
# [[bin]]
# name = "line"
# path = "src/line.rs"
[[bin]]
name = "line"
path = "src/line.rs"
[dependencies]
# termwiz = { git = "https://github.com/wez/wezterm", features = ["widgets"] }
termwiz = { path = "../../wezterm/termwiz", default-features = false, features = ["widgets"] }
# termwiz = { path = "../../wezterm/termwiz", default-features = false, features = ["widgets"] }
anyhow = "1.0.31"
argh = "0.1.3"
helix-core = { path = "../helix-core" }
# crossterm = { version = "0.17.5", features = ["event-stream"] }
crossterm = { git = "https://github.com/crossterm-rs/crossterm", branch = "mio-update", features = ["event-stream"] }
futures = { version = "0.3.5", default-features = false, features = ["std"] }
# futures-timer = "3.0.2"
smol = "0.1.10"
num_cpus = "1.13.0"
piper = "0.1.2"

172
helix-term/src/line.rs
Unescape Escape View File

@ -1,111 +1,97 @@
use termwiz::cell::AttributeChange;
use termwiz::color::{AnsiColor, ColorAttribute, RgbColor};
use termwiz::lineedit::*;
//! Demonstrates how to read events asynchronously with async-std.
//!
//! cargo run --features="event-stream" --example event-stream-async-std
#[derive(Default)]
struct Host {
history: BasicHistory,
}
use std::{
io::{stdout, Write},
time::Duration,
};
impl LineEditorHost for Host {
// Render the prompt with a darkslateblue background color if
// the terminal supports true color, otherwise render it with
// a navy blue ansi color.
fn render_prompt(&self, prompt: &str) -> Vec<OutputElement> {
vec![
OutputElement::Attribute(AttributeChange::Background(
ColorAttribute::TrueColorWithPaletteFallback(
RgbColor::from_named("darkslateblue").unwrap(),
AnsiColor::Navy.into(),
),
)),
OutputElement::Text(prompt.to_owned()),
]
}
use futures::{future::FutureExt, select, StreamExt};
use smol::Timer;
// use futures_timer::Delay;
fn history(&mut self) -> &mut dyn History {
&mut self.history
}
use crossterm::{
cursor::position,
event::{DisableMouseCapture, EnableMouseCapture, Event, EventStream, KeyCode},
execute,
terminal::{disable_raw_mode, enable_raw_mode},
Result,
};
const HELP: &str = r#"EventStream based on futures::Stream with async-std
- Keyboard, mouse and terminal resize events enabled
- Prints "." every second if there's no event
- Hit "c" to print current cursor position
- Use Esc to quit
"#;
async fn print_events() {
let mut reader = EventStream::new();
/// Demo of the completion API for words starting with "h" or "he"
fn complete(&self, line: &str, cursor_position: usize) -> Vec<CompletionCandidate> {
let mut candidates = vec![];
if let Some((range, word)) = word_at_cursor(line, cursor_position) {
let words = &["hello", "help", "he-man"];
for w in words {
if w.starts_with(word) {
candidates.push(CompletionCandidate {
range: range.clone(),
text: w.to_string(),
});
loop {
let mut delay = Timer::after(Duration::from_millis(1_000)).fuse();
let mut event = reader.next().fuse();
select! {
_ = delay => { println!(".\r"); },
maybe_event = event => {
match maybe_event {
Some(Ok(event)) => {
println!("Event::{:?}\r", event);
if event == Event::Key(KeyCode::Char('c').into()) {
println!("Cursor position: {:?}\r", position());
}
if event == Event::Key(KeyCode::Esc.into()) {
break;
}
}
Some(Err(e)) => println!("Error: {:?}\r", e),
None => break,
}
}
}
candidates
};
}
}
/// This is a conceptually simple function that computes the bounds
/// of the whitespace delimited word at the specified cursor position
/// in the supplied line string.
/// It returns the range and the corresponding slice out of the line.
/// This function is sufficient for example purposes; in a real application
/// the equivalent function would need to be aware of quoting and other
/// application specific context.
fn word_at_cursor(line: &str, cursor_position: usize) -> Option<(std::ops::Range<usize>, &str)> {
let char_indices: Vec<(usize, char)> = line.char_indices().collect();
if char_indices.is_empty() {
return None;
}
let char_position = char_indices
.iter()
.position(|(idx, _)| *idx == cursor_position)
.unwrap_or(char_indices.len());
// Look back until we find whitespace
let mut start_position = char_position;
while start_position > 0
&& start_position <= char_indices.len()
&& !char_indices[start_position - 1].1.is_whitespace()
{
start_position -= 1;
}
fn main() -> Result<()> {
println!("{}", HELP);
// Look forwards until we find whitespace
let mut end_position = char_position;
while end_position < char_indices.len() && !char_indices[end_position].1.is_whitespace() {
end_position += 1;
}
enable_raw_mode()?;
let mut stdout = stdout();
execute!(stdout, EnableMouseCapture)?;
use std::thread;
// Same number of threads as there are CPU cores.
let num_threads = num_cpus::get().max(1);
if end_position > start_position {
let range = char_indices[start_position].0
..char_indices
.get(end_position)
.map(|c| c.0 + 1)
.unwrap_or(line.len());
Some((range.clone(), &line[range]))
} else {
None
// A channel that sends the shutdown signal.
let (s, r) = piper::chan::<()>(0);
let mut threads = Vec::new();
// Create an executor thread pool.
for _ in 0..num_threads {
// Spawn an executor thread that waits for the shutdown signal.
let r = r.clone();
threads.push(thread::spawn(move || smol::run(r.recv())));
}
}
fn main() -> anyhow::Result<()> {
println!("Type `exit` to quit this example, or start a word with `h` and press Tab.");
let mut terminal = line_editor_terminal()?;
let mut editor = LineEditor::new(&mut terminal);
// No need to `run()`, now we can just block on the main future.
smol::block_on(print_events());
let mut host = Host::default();
loop {
if let Some(line) = editor.read_line(&mut host)? {
println!("read line: {:?}", line);
if line == "exit" {
break;
}
// Send a shutdown signal.
drop(s);
host.history().add(&line);
}
// Wait for threads to finish.
for t in threads {
t.join().unwrap();
}
Ok(())
execute!(stdout, DisableMouseCapture)?;
disable_raw_mode()
}

8
helix-term/src/main.rs
Unescape Escape View File

@ -1,6 +1,6 @@
mod editor;
// mod editor;
use editor::Editor;
// use editor::Editor;
use argh::FromArgs;
use std::{env, path::PathBuf};
@ -16,9 +16,9 @@ pub struct Args {
fn main() -> Result<(), Error> {
let args: Args = argh::from_env();
let mut editor = Editor::new(args)?;
// let mut editor = Editor::new(args)?;
editor.run()?;
// editor.run()?;
Ok(())
}

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