#color #string #term #ansi_term #term-painter

colored

The most simple way to add colors in your terminal

17 stable releases

1.6.1 Jul 9, 2018
1.6.0 Oct 31, 2017
1.5.3 Sep 28, 2017
1.5.2 Jul 6, 2017
1.2.0 Mar 30, 2016

#1 in Encoding

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38,033 downloads per month
Used in 211 crates (140 directly)

MPL-2.0 license

51KB
1K SLoC

Colored

Build Status Crates.io Crates.io

Coloring terminal so simple, you already know how to do it!

    "this is blue".blue();
    "this is red".red();
    "this is red on blue".red().on_blue();
    "this is also red on blue".on_blue().red();
    "bright colors are welcome as well".on_bright_blue().bright_red();
    "you can also make bold comments".bold();
    println!("{} {} {}", "or use".cyan(), "any".italic().yellow(), "string type".cyan());
    "or change advice. This is red".yellow().blue().red();
    "or clear things up. This is default color and style".red().bold().clear();
    "purple and magenta are the same".purple().magenta();
    "and so are normal and clear".normal().clear();
    "you can specify color by string".color("blue").on_color("red");
    String::from("this also works!").green().bold();
    format!("{:30}", "format works as expected. This will be padded".blue());
    format!("{:.3}", "and this will be green but truncated to 3 chars".green());

How to use

Add this in your Cargo.toml:

[dependencies]
colored = "1.6"

and add this to your lib.rs or main.rs:

    extern crate colored;

    use colored::*;

    // test the example with `cargo run --example most_simple`
    fn main() {
        // TADAA!
        println!("{} {} !", "it".green(), "works".blue().bold());
    }

Features

  • Safe rust, easy to use, minimal dependencies, complete test suite
  • Respect the CLICOLOR/CLICOLOR_FORCE behavior (see the specs)

Colors:

  • black
  • red
  • green
  • yellow
  • blue
  • magenta (or purple)
  • cyan
  • white

Bright colors: prepend the color by bright_. So easy. Background colors: prepend the color by on_. Simple as that. Bright Background colors: prepend the color by on_bright_. Not hard at all.

Styles:

  • bold
  • underline
  • italic
  • dimmed
  • reversed
  • blink
  • hidden
  • strikethrough

You can clear color and style anytime by using normal() or clear()

Advanced Control:

Dynamic color from str

As Color implements FromStr, From<&str>, and From<String>, you can easily cast a string into a color like that:

// the easy way
"blue string yo".color("blue");

// this will default to white
"white string".color("zorglub");

// the safer way via a Result
let color_res = "zorglub".parse(); // <- this returns a Result<Color, ()>
"red string".color(color_res.unwrap_or(Color::Red));
Colorization control

If you want to disable any coloring at compile time, you can simply do so by using the no-color feature.

For example, you can do this in your Cargo.toml to disable color in tests:

[features]
# this effectively enable the feature `no-color` of colored when testing with
# `cargo test --feature test`
test = ["colored/no-color"]

You can use have even finer control by using the colored::control::set_override method.

Todo

  • Windows console support: this works only with ANSI terminals. I plan to support the windows console also.
  • More tests ?: We always welcome more tests! Please contribute!

Credits

This library wouldn't have been the same without the marvelous ruby gem colored.

Thanks for the ansi_term crate for providing a reference implementation, which greatly helped making this crate output correct strings.

License

Mozilla Public License 2.0. See the LICENSE file at the root of the repository.

In non legal terms it means that:

  • if you fix a bug, you MUST give me the code of the fix (it's only fair)
  • if you change/extend the API, you MUST give me the code you changed in the files under MPL2.
  • you CAN'T sue me for anything about this code
  • apart from that, you can do almost whatever you want. See the LICENSE file for details.

Contributors

Dependencies