kryptos 0.6.3

A Rust implementation of various older, insecure, cryptographic ciphers.
Documentation 
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extern crate regex;

use regex::{Captures, Regex};

#[test]
fn test_regex() {
    let binary = "01010";

    let re = Regex::new(r"[01]{5}").unwrap();
    let result = re.replace_all(&binary, |caps: &Captures| {
        format!(
            "{:?}",
            &caps[0]
                .as_bytes()
                .iter()
                .map(|b| b - 48)
                .collect::<Vec<u8>>()
        )
    });

    assert_eq!(result.to_string(), "[0, 1, 0, 1, 0]")
}