From c730e0d1bdffded978d064ffba111a5f119a5be7 Mon Sep 17 00:00:00 2001
From: Rhinemann <andreyfrog26@gmail.com>
Date: Mon, 26 Jun 2023 00:15:07 +0300
Subject: [PATCH] Rusty implementation.

---
 Cargo.toml           |  16 +++++++
 README.md            |   0
 src/bit_utilities.rs | 101 +++++++++++++++++++++++++++++++++++++++++++
 src/main.rs          |  44 +++++++++++++++++++
 4 files changed, 161 insertions(+)
 create mode 100644 Cargo.toml
 create mode 100644 README.md
 create mode 100644 src/bit_utilities.rs
 create mode 100644 src/main.rs

diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..8e99260
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,16 @@
+[package]
+name = "rust_tests"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[profile.release]
+opt-level = 'z'     # Optimize for size
+lto = true          # Enable link-time optimization
+codegen-units = 1   # Reduce number of codegen units to increase optimizations
+panic = 'abort'     # Abort on panic
+strip = true        # Strip symbols from binary*
+
+[dependencies]
+text_io = "0.1.12"
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/src/bit_utilities.rs b/src/bit_utilities.rs
new file mode 100644
index 0000000..3776a5b
--- /dev/null
+++ b/src/bit_utilities.rs
@@ -0,0 +1,101 @@
+use std::fmt;
+use std::fmt::Formatter;
+
+fn capitalise(s: &str) -> String {
+    let mut c = s.chars();
+    match c.next() {
+        None => String::new(),
+        Some(f) => f.to_uppercase().collect::<String>() + c.as_str(),
+    }
+}
+
+/// A basic register capable of storing binary data.
+#[derive(Debug)]
+pub struct BasicRegister {
+    /// A [Vec] that stores the binary data of the register.
+    memory: Vec<bool>,
+}
+
+impl BasicRegister {
+    pub fn l_shift(&mut self) {
+        let mut res: Vec<bool> = vec![false; self.memory.len()];
+
+        res[..(self.memory.len() - 1)]
+            .copy_from_slice(&self.memory[1..((self.memory.len() - 1) + 1)]);
+
+        self.memory = res;
+    }
+
+    pub fn r_shift(&mut self) {
+        let mut res: Vec<bool> = vec![false; self.memory.len()];
+
+        for i in (1..self.memory.len()).rev() {
+            res[i] = self.memory[i - 1];
+        }
+
+        self.memory = res;
+    }
+
+    pub fn reverse(&mut self) {
+        self.memory = self.memory.iter().map(|val| !val).collect();
+    }
+
+    pub fn new(memory: Vec<bool>) -> Self {
+        Self { memory }
+    }
+}
+
+impl Default for BasicRegister {
+    fn default() -> Self {
+        Self {
+            memory: vec![false],
+        }
+    }
+}
+
+impl fmt::Display for BasicRegister {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        write!(f, "Memory: [")?;
+
+        for (count, v) in self.memory.iter().enumerate() {
+            if count != 0 {
+                write!(f, ", ")?;
+            }
+            write!(f, "{}", *v as u8)?;
+        }
+
+        write!(f, "]")
+    }
+}
+
+fn read_vec(variable_name: &str) -> Vec<char> {
+    loop {
+        print!("Enter {variable_name}: ");
+        let input: String = text_io::read!("{}\n");
+        match input.chars().all(|c| c == '1' || c == '0') {
+            true => return input.chars().collect(),
+            false => eprintln!(
+                "[ERROR] {} may contain only 1-s and 0-s with no whitespaces!",
+                capitalise(variable_name)
+            ),
+        }
+    }
+}
+
+pub fn char_to_bool_vector(char_vector: Vec<char>) -> Vec<bool> {
+    let mut bool_vector: Vec<bool> = Vec::new();
+
+    for value in char_vector.iter() {
+        match value {
+            '0' => bool_vector.push(false),
+            '1' => bool_vector.push(true),
+            _ => (),
+        }
+    }
+
+    bool_vector
+}
+
+pub fn get_memory(variable_name: &str) -> Vec<bool> {
+    char_to_bool_vector(read_vec(variable_name))
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..9c46024
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,44 @@
+#[allow(dead_code)]
+mod bit_utilities;
+
+use bit_utilities::*;
+// use text_io::read;
+
+fn main() {
+       let mut reg = BasicRegister::new(get_memory("your number"));
+    // let mut reg: BasicRegister = Default::default();
+
+    println!("\nRegister:");
+    println!("{}", reg);
+
+    println!("\nShifted right:");
+    reg.r_shift();
+    println!("{}", reg);
+
+    println!("\nShifted left:");
+    reg.l_shift();
+    println!("{}", reg);
+
+    println!("\nReversed:");
+    reg.reverse();
+    println!("{}", reg);
+
+    // println!("{}", true);
+    // println!("{}", true);
+
+    // let a: i8 = read!();
+    // println!("{} {0:b}", a);
+    // println!("{} {0:b}", a >> 1);
+    // println!("{} {0:b}", a << 1);
+    // println!("{} {0:b}", !a);
+    // println!("{}", '3'.to_digit(2).unwrap());
+    // let f_text = format!("{a:b}").chars().collect::<Vec<char>>();
+    // println!("{:?}", f_text);
+    // println!("{:?}", char_to_bool_vector(f_text.clone()));
+    // let b: BasicRegister = BasicRegister::new(char_to_bool_vector(f_text));
+    // b.print_register();
+    // println!("{:?}", get_memory(format!("{a:b}")));
+    // println!("{:?}", a.split(" ").collect::<Vec<&str>>());
+    // a = text_io::read!("{}\n");
+    // println!("{a}")
+}