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Inspired by this reddit post
Created
April 28, 2018 09:19
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Hello world!
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| [package] | |
| name = "hello-world" | |
| version = "0.1.0" | |
| authors = ["holi0317 <[email protected]>"] | |
| [dependencies] | |
| rand = "0.4.2" |
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| extern crate rand; | |
| use std::{time, thread}; | |
| use std::io::{self, Write}; | |
| use rand::{thread_rng, Rng}; | |
| const EREASE_SEQUENCE: &str = "\x1B[D\x1B[K"; | |
| const SLEEP_DUR: u64 = 70; | |
| const TARGET: &str = "Hello, world!"; | |
| fn main() { | |
| println!(); | |
| for c in TARGET.chars() { | |
| let c = c.to_string(); | |
| let mut rng = thread_rng(); | |
| let mut generator = rng | |
| .gen_iter::<u8>() | |
| .filter(|&n| n >= 32 && n <= 126) | |
| .map(|n| String::from_utf8(vec!(n)).unwrap()); | |
| for random in generator { | |
| if random != c { | |
| print!("{}", random); | |
| io::stdout().flush().unwrap(); | |
| thread::sleep(time::Duration::from_millis(SLEEP_DUR)); | |
| print!("{}", EREASE_SEQUENCE); | |
| io::stdout().flush().unwrap(); | |
| } else { | |
| break | |
| } | |
| } | |
| print!("{}", c); | |
| } | |
| println!(); | |
| } |
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