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Rotem Horesh 2024-12-30 16:59:34 +02:00
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.gitignore vendored Normal file
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/target

364
Cargo.lock generated Normal file
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Cargo.toml Normal file
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[package]
name = "replay"
version = "0.1.0"
edition = "2024"
[dependencies]
crossterm = "0.27"
regex = "1.11"

143
src/main.rs Normal file
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use std::io::{self, Write, stdout};
use crossterm::{
cursor,
event::{Event, KeyCode, read},
execute, style,
terminal::{self, ClearType},
};
use regex::Regex;
const LINES_BETWEEN: u16 = 3;
enum Type {
Re,
Hay,
}
struct Input {
typ: Type,
re: String,
hay: String,
}
impl Input {
pub fn new() -> Self {
Self {
typ: Type::Re,
re: String::new(),
hay: String::new(),
}
}
pub fn pop(&mut self) {
match self.typ {
Type::Re => self.re.pop(),
Type::Hay => self.hay.pop(),
};
}
pub fn push(&mut self, ch: char) {
match self.typ {
Type::Re => self.re.push(ch),
Type::Hay => self.hay.push(ch),
};
}
pub fn switch(&mut self) {
self.typ = match self.typ {
Type::Re => Type::Hay,
Type::Hay => Type::Re,
};
}
pub fn get(&self) -> &str {
match self.typ {
Type::Re => &self.re,
Type::Hay => &self.hay,
}
}
pub fn re(&self) -> &str {
&self.re
}
pub fn hay(&self) -> &str {
&self.hay
}
pub fn result(&self) -> String {
Regex::new(&self.re)
.map(|re| {
let mut res = String::with_capacity(self.hay.len());
let mut last = 0;
for m in re.find_iter(&self.hay).map(|m| (m.start(), m.end())) {
res.push_str(&self.hay[last..m.0]);
res.push('[');
res.push_str(&self.hay[m.0..m.1]);
res.push(']');
last = m.1;
}
if last < self.hay.len() {
res.push_str(&self.hay[last..]);
}
res
})
.unwrap_or_else(|err| err.to_string())
}
pub fn pos(&self) -> (u16, u16) {
match self.typ {
Type::Re => (self.re.len() as u16, 0),
Type::Hay => (self.hay.len() as u16, LINES_BETWEEN),
}
}
}
fn main() -> io::Result<()> {
let mut stdout = stdout();
let (_, _) = terminal::size()?;
terminal::enable_raw_mode()?;
let mut input = Input::new();
loop {
let (col, row) = input.pos();
execute!(
stdout,
terminal::Clear(ClearType::All),
cursor::MoveTo(0, 0),
style::Print(input.re()),
cursor::MoveTo(0, LINES_BETWEEN),
style::Print(input.hay()),
cursor::MoveTo(0, LINES_BETWEEN + 5),
style::Print(input.result()),
cursor::MoveTo(col, row),
)?;
stdout.flush()?;
if let Event::Key(event) = read()? {
match event.code {
KeyCode::Esc => break,
KeyCode::Backspace => input.pop(),
KeyCode::Char(ch) => input.push(ch),
KeyCode::Tab => input.switch(),
_ => (),
}
}
}
execute!(
stdout,
terminal::Clear(ClearType::All),
cursor::MoveTo(0, 0),
)?;
terminal::disable_raw_mode()?;
Ok(())
}