First commit

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  # Maintain dependencies for Cargo
+  - package-ecosystem: "cargo"
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: weekly

.github/workflows/ci.yml

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+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - master
+      - develop
+
+env:
+  CARGO_TERM_COLOR: always
+
+# ensure that the workflow is only triggered once per PR, subsequent pushes to the PR will cancel
+# and restart the workflow. See https://docs.github.com/en/actions/using-jobs/using-concurrency
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  fmt:
+    name: fmt
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install Rust stable
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+      - name: check formatting
+        run: cargo fmt -- --check
+      - name: Cache Cargo dependencies
+        uses: Swatinem/rust-cache@v2
+  clippy:
+    name: clippy
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      checks: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install Rust stable
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy
+      - name: Run clippy action
+        uses: clechasseur/rs-clippy-check@v3
+      - name: Cache Cargo dependencies
+        uses: Swatinem/rust-cache@v2
+  doc:
+    # run docs generation on nightly rather than stable. This enables features like
+    # https://doc.rust-lang.org/beta/unstable-book/language-features/doc-cfg.html which allows an
+    # API be documented as only available in some specific platforms.
+    name: doc
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Rust nightly
+        uses: dtolnay/rust-toolchain@nightly
+      - name: Run cargo doc
+        run: cargo doc --no-deps --all-features
+        env:
+          RUSTDOCFLAGS: --cfg docsrs
+  test:
+    runs-on: ${{ matrix.os }}
+    name: test ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest]
+    steps:
+      # if your project needs OpenSSL, uncomment this to fix Windows builds.
+      # it's commented out by default as the install command takes 5-10m.
+      # - run: echo "VCPKG_ROOT=$env:VCPKG_INSTALLATION_ROOT" | Out-File -FilePath $env:GITHUB_ENV -Append
+      #   if: runner.os == 'Windows'
+      # - run: vcpkg install openssl:x64-windows-static-md
+      #   if: runner.os == 'Windows'
+      - uses: actions/checkout@v4
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+      # enable this ci template to run regardless of whether the lockfile is checked in or not
+      - name: cargo generate-lockfile
+        if: hashFiles('Cargo.lock') == ''
+        run: cargo generate-lockfile
+      - name: cargo test --locked
+        run: cargo test --locked --all-features --all-targets
+      - name: Cache Cargo dependencies
+        uses: Swatinem/rust-cache@v2

.gitignore

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+target
+Cargo.lock

Cargo.toml

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+[package]
+name = "binocle"
+version = "0.1.0"
+description = "A TUI to do binary computations"
+authors = ["Julien Thillard <julien.thillard38@gmail.com>"]
+license = "MIT"
+edition = "2024"
+
+[dependencies]
+color-eyre = "0.6"
+crossterm = "0.29"
+ratatui = "0.30"
+
+[profile.release]
+codegen-units = 1
+lto = true
+opt-level = "s"
+strip = true

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) supersurviveur <julien.thillard38@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# binocle
+
+This is a [Ratatui] app generated by the [Hello World template].
+
+[Ratatui]: https://ratatui.rs
+[Hello World Template]: https://github.com/ratatui/templates/tree/main/hello-world
+
+## License
+
+Copyright (c) supersurviveur <julien.thillard38@gmail.com>
+
+This project is licensed under the MIT license ([LICENSE] or <http://opensource.org/licenses/MIT>)
+
+[LICENSE]: ./LICENSE

src/app.rs

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+use std::io;
+
+use crossterm::event::{self, Event, KeyCode, KeyEvent, KeyEventKind};
+use ratatui::{
+    buffer::Buffer,
+    layout::{Constraint, Direction, Layout, Rect},
+    style::Stylize,
+    symbols::border,
+    text::{Line, Text},
+    widgets::{Block, Paragraph, Widget},
+    DefaultTerminal, Frame,
+};
+
+use crate::{binary_repr::BinaryRepr, twos_complement::TwosComplement};
+
+#[derive(Debug, Default)]
+pub struct App {
+    exit: bool,
+    character_index: usize,
+    input: String,
+
+    bit_size: usize,
+    parsed_input: BinaryRepr,
+
+    // Components
+    twos_complement: TwosComplement,
+}
+
+impl App {
+    pub fn run(&mut self, terminal: &mut DefaultTerminal) -> io::Result<()> {
+        self.bit_size = 32;
+        while !self.exit {
+            terminal.draw(|frame| self.draw(frame))?;
+            self.handle_events()?;
+        }
+        Ok(())
+    }
+
+    fn draw(&self, frame: &mut Frame) {
+        frame.render_widget(self, frame.area());
+    }
+
+    fn handle_events(&mut self) -> io::Result<()> {
+        match event::read()? {
+            Event::Key(key_event) if key_event.kind == KeyEventKind::Press => {
+                self.handle_key_event(key_event);
+            }
+            _ => {}
+        }
+        Ok(())
+    }
+
+    fn handle_key_event(&mut self, key_event: KeyEvent) {
+        match key_event.code {
+            KeyCode::Char('q') => self.exit(),
+            // KeyCode::Left => self.decrement_counter(),
+            // KeyCode::Right => self.increment_counter(),
+            KeyCode::Char(to_insert) => self.enter_char(to_insert),
+            KeyCode::Backspace => self.delete_char(),
+            _ => {}
+        }
+        match key_event.code {
+            KeyCode::Char(_) | KeyCode::Backspace => self.update(),
+            _ => {}
+        }
+    }
+
+    fn enter_char(&mut self, input: char) {
+        self.input.push(input);
+        self.character_index += 1;
+    }
+
+    fn delete_char(&mut self) {
+        let is_not_cursor_leftmost = self.character_index != 0;
+        if is_not_cursor_leftmost {
+            self.character_index -= 1;
+            self.input.remove(self.character_index);
+        }
+    }
+
+    fn update(&mut self) {
+        self.parsed_input =
+            BinaryRepr::from_usize(self.input.parse::<usize>().unwrap(), self.bit_size);
+        self.twos_complement.update(&self.parsed_input);
+    }
+
+    const fn exit(&mut self) {
+        self.exit = true;
+    }
+}
+
+impl Widget for &App {
+    fn render(self, area: Rect, buf: &mut Buffer) {
+        let layout = Layout::new(
+            Direction::Vertical,
+            [Constraint::Fill(1), Constraint::Length(3)],
+        );
+        let [output_area, input_area] = area.layout(&layout);
+
+        // let title = Line::from(" Counter App Tutorial ".bold());
+        // let instructions = Line::from(vec![
+        //     " Decrement ".into(),
+        //     "<Left>".blue().bold(),
+        //     " Increment ".into(),
+        //     "<Right>".blue().bold(),
+        //     " Quit ".into(),
+        //     "<Q> ".blue().bold(),
+        // ]);
+
+        self.twos_complement.render(output_area, buf);
+
+        let input_layout = Layout::new(
+            Direction::Horizontal,
+            [Constraint::Fill(1), Constraint::Length(10)],
+        );
+        let [input_area, size_area] = input_area.layout(&input_layout);
+
+        let input_text = Text::from(self.input.clone().yellow());
+
+        let input_block = Block::bordered()
+            .title(Line::from("input".bold()))
+            .border_set(border::PLAIN);
+
+        Paragraph::new(input_text)
+            .block(input_block)
+            .render(input_area, buf);
+
+        let size_text = Text::from(self.bit_size.yellow());
+
+        let size_block = Block::bordered()
+            .title(Line::from("size".bold()))
+            .border_set(border::PLAIN);
+
+        Paragraph::new(size_text)
+            .block(size_block)
+            .render(size_area, buf);
+    }
+}

src/binary_repr.rs

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+use std::ops::{Add, Not, Sub};
+
+#[derive(Debug, Default, Clone)]
+pub struct BinaryRepr {
+    pub bits: Vec<bool>,
+    pub size: usize,
+}
+
+impl BinaryRepr {
+    pub const fn new(bits: Vec<bool>, size: usize) -> Self {
+        Self { bits, size }
+    }
+
+    pub fn to_hex(&self) -> String {
+        let mut hex = String::new();
+
+        for chunk in self.bits.chunks(4) {
+            let nibble = chunk
+                .iter()
+                .enumerate()
+                .fold(0, |acc, (i, bit)| acc + (u8::from(*bit) << i));
+
+            hex.insert(
+                0,
+                [
+                    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f',
+                ][nibble as usize],
+            );
+        }
+
+        hex
+    }
+
+    pub fn from_usize(mut value: usize, size: usize) -> Self {
+        Self::new(
+            (0..size)
+                .map(|_| {
+                    let out = value & 1 != 0;
+                    value >>= 1;
+                    out
+                })
+                .collect(),
+            size,
+        )
+    }
+}
+
+impl Not for BinaryRepr {
+    type Output = Self;
+
+    fn not(self) -> Self::Output {
+        Self::new(self.bits.iter().map(|a| !a).collect(), self.size)
+    }
+}
+
+impl Not for &BinaryRepr {
+    type Output = BinaryRepr;
+
+    fn not(self) -> Self::Output {
+        !self.clone()
+    }
+}
+
+impl Add<&Self> for BinaryRepr {
+    type Output = Self;
+
+    fn add(mut self, rhs: &Self) -> Self::Output {
+        assert_eq!(self.size, rhs.size);
+
+        let mut carry = false;
+
+        self.bits
+            .iter_mut()
+            .zip(rhs.bits.iter())
+            .for_each(|(a, b)| {
+                let half = *a ^ b;
+                let out = half ^ carry;
+                carry = (*a & b) || (half & carry);
+                *a = out;
+            });
+
+        self
+    }
+}
+
+impl Add for BinaryRepr {
+    type Output = Self;
+
+    fn add(self, rhs: Self) -> Self::Output {
+        self + &rhs
+    }
+}
+
+impl Sub<&Self> for BinaryRepr {
+    type Output = Self;
+
+    fn sub(self, rhs: &Self) -> Self::Output {
+        assert_eq!(self.size, rhs.size);
+
+        let size = self.size;
+
+        self + &!rhs + Self::from_usize(1, size)
+    }
+}
+
+impl BinaryRepr {
+    pub fn twos_complement(&self) -> Self {
+        !self + Self::from_usize(1, self.size)
+    }
+}

src/hexadecimal.rs

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+use ratatui::{
+    buffer::Buffer,
+    layout::Rect,
+    style::Stylize,
+    symbols::border,
+    text::{Line, Text},
+    widgets::{Block, Paragraph, Widget},
+};
+
+use crate::binary_repr::BinaryRepr;
+
+#[derive(Debug, Default)]
+pub struct TwosComplement {
+    repr: BinaryRepr,
+}
+
+impl TwosComplement {
+    pub fn update(&mut self, input: &BinaryRepr) {
+        self.repr = input.twos_complement();
+    }
+}
+
+impl Widget for &TwosComplement {
+    fn render(self, area: Rect, buf: &mut Buffer) {
+        let input_text = Text::from(("0x".to_owned() + &self.repr.to_hex()).yellow());
+
+        let input_block = Block::bordered()
+            .title(Line::from("2's complement".bold()))
+            .border_set(border::PLAIN);
+
+        Paragraph::new(input_text)
+            .block(input_block)
+            .render(area, buf);
+    }
+}

src/main.rs

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+#![deny(clippy::nursery, clippy::pedantic)]
+
+use crate::app::App;
+
+mod app;
+mod binary_repr;
+mod twos_complement;
+mod hexadecimal;
+
+fn main() -> color_eyre::Result<()> {
+    color_eyre::install()?;
+    ratatui::run(|terminal| App::default().run(terminal))?;
+    Ok(())
+}

src/twos_complement.rs

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+use ratatui::{
+    buffer::Buffer,
+    layout::Rect,
+    style::Stylize,
+    symbols::border,
+    text::{Line, Text},
+    widgets::{Block, Paragraph, Widget},
+};
+
+use crate::binary_repr::BinaryRepr;
+
+#[derive(Debug, Default)]
+pub struct TwosComplement {
+    repr: BinaryRepr,
+}
+
+impl TwosComplement {
+    pub fn update(&mut self, input: &BinaryRepr) {
+        self.repr = input.twos_complement();
+    }
+}
+
+impl Widget for &TwosComplement {
+    fn render(self, area: Rect, buf: &mut Buffer) {
+        let input_text = Text::from(("0x".to_owned() + &self.repr.to_hex()).yellow());
+
+        let input_block = Block::bordered()
+            .title(Line::from("2's complement".bold()))
+            .border_set(border::PLAIN);
+
+        Paragraph::new(input_text)
+            .block(input_block)
+            .render(area, buf);
+    }
+}