rustyline-with-newest-nix 12.0.0

Rustyline, a readline implementation based on Antirez's Linenoise
Documentation 
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use rustyline::{DefaultEditor, Result};

/// Minimal REPL
fn main() -> Result<()> {
    env_logger::init();
    let mut rl = DefaultEditor::new()?;
    loop {
        let line = rl.readline("> ")?; // read
        println!("Line: {line}"); // eval / print
    } // loop
}