The colog library is a simple formatter backend for the standard rust logging system (in the log crate).

use log::{error, warn, info, debug, trace};

fn main() {
    // Quick start: use default initialization
    colog::init();

    error!("error message");
    error!("error with fmt: {}", 42);
    warn!("warn message");
    info!("info message");
    debug!("debug message");
    trace!("trace message");

    info!("multi line demonstration\nhere");
    info!("more\nmulti\nline\nhere\nhere");
}

This results in the following terminal output:

It's possible to override all colors and styles of colog.

See the following examples:

• examples/custom-level-colors.rs
• examples/custom-level-tokens.rs
• examples/custom-level-prefix.rs

Also be sure to read the documentation (cargo doc --open) for a detailed description.

There are no known, serious, unsolved issues.

Patches welcome :)

This project is licensed under the LGPLv3. See the file LICENSE for details.