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readline-sys

Version

Native bindings to libreadline.

Features

thin wrappers around readline and add_history
write history line to file: add_history_persist
load history from file: preload_history
library version: version

API Documentation

Rustdocs

Usage

Add rl-sys as a dependency in Cargo.toml

[dependencies]
rl-sys = "~0.4.0"

A simple implementation of cat using rl_sys::readline

extern crate rl_sys;

fn main() {
    loop {
        let input: String = match rl_sys::readline("") {
            Ok(Some(s)) => s,
            Ok(None) => break,  // user entered ctrl-d
            Err(e) => {
                println!("{}", e);
                continue;
            }
        };
        println!("{}", input);

        // Enables up/down arrow scrolling through history
        rl_sys::add_history(&input);
    }
}

Check out the more comprehensive shell example in the examples directory.

Development

To work on this crate, remember to git clone --recursive or git submodule init && git submodule update.

License

Distributed under the MIT License.