first commit

This commit is contained in:
Forrest Loomis 2022-07-31 18:26:32 -04:00
commit 24572fd293
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/target

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Cargo.lock generated Normal file
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Cargo.toml Normal file
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src/editor.rs Normal file
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use std::io::{self, Write, stdout};
use crossterm::{
event::{read, Event, KeyCode},
terminal::{self, ClearType}, queue,
};
pub struct Editor {
should_quit: bool,
}
impl Editor {
pub fn run(&mut self) {
terminal::enable_raw_mode();
loop {
if let Err(error) = self.refresh_screen() {
die(error);
}
if self.should_quit {
terminal::disable_raw_mode();
break;
}
if let Err(error) = self.process_keypress() {
die(error);
}
}
}
fn process_keypress(&mut self) -> Result<(), std::io::Error> {
let pressed_key = read_key()?;
match pressed_key {
KeyCode::Char('q') => self.should_quit = true,
_ => (),
}
Ok(())
}
fn refresh_screen(&self) -> Result<(), std::io::Error> {
let mut stdout = stdout();
queue!(stdout, terminal::Clear(ClearType::All));
stdout.flush();
Ok(())
}
pub fn default() -> Self {
Self { should_quit: false }
}
}
fn read_key() -> Result<KeyCode, std::io::Error> {
loop {
match read() {
Ok(event) => match event {
Event::Key(event) => return Ok(event.code),
_ => todo!(),
},
Err(err) => return Err(err),
}
}
}
fn die(e: std::io::Error) {
panic!("{}", e);
}

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src/main.rs Normal file
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#![warn(clippy::all, clippy::pedantic)]
mod editor;
use editor::Editor;
fn main() {
Editor::default().run();
}