farben 0.2.0

A minimal terminal coloring library using markup-like syntax.

[!WARNING] Farben, in this current state, is extremely unstable. It only has one or two public interface, unfinished features, and is experimetal. I do not recommend using it in production, at least not yet.

What Is Farben

Look at the tagline up there ^

Documentation

[!NOTE] The user guide right now is literally unreadable.

• User Guide: https://razkar-studio.github.io/farben
• API Reference: https://docs.rs/farben

Usage

// Using no features
use farben::color;

println!("{}", color("[red]I'm red!")); // Runtime
let color = "red";
println!("{}", color_fmt!("[bold red]I'm bold and {color}!")); // Arguments supported
println!("{}", color("[rgb(255,128,0)]I'm orange![/] Back to normal."));

// Using the "compile" feature
use farben::color;

println!("{}", color!("[red]I'm red!")); // Compile-time
let color = "red";
println!("{}", color_fmt!("[bold red]I'm bold and {color}!")); // Compile time validation, not processing
println!("{}", color!("[rgb(255,128,0)]I'm orange![/] Back to normal."));

Features

• Markup-like Syntax: Easy to parse, understand, and powerful when used.
• Only 1 required runtime dependencies: Having only 1 dependency, and that being the logic itself, farben doesn't introduce a complicated dependency tree.
• Opt-in Compile-time Processing: Colorize at compile time with no runtime overhead, completely opt-in with one additional dependency: farben-macros.
• Complete Toolkit: Supports basic named ANSI, ANSI256, and even RGB.

Installation

To add farben as a dependency, run the following command on your Cargo project:

cargo add farben

Or alternatively, put directly on your Cargo.toml:

[dependencies]
farben = "0.2"

To enable compile-time processing, use the compile feature, like so:

cargo add farben --features compile

Or in the Cargo.toml:

[dependencies]
farben = { version: "0.2", features: ["compile"] }

[!NOTE] If you're using the compile feature, color is a macro, not a function. Use as color! going forward.

Syntax

Tags are written as [tag] and apply from that point forward. Multiple tags can be combined in a single bracket: [bold red].

[!WARNING] Spaces inside ansi() and rgb() are not supported at the moment, and it will error.

Error Handling

color() panics on invalid markup. For graceful error handling, use try_color():

use farben::try_color;

match try_color("[invalid]oops") {
    Ok(s) => println!("{s}"),
    Err(e) => eprintln!("Error: {e}"),
}

Contributing

Contributions are welcome! Feel free to submit a Pull Request.

License

This project is protected under the RazkarStudio Permissive License (RSPL). See LICENSE.md for more details.

Cheers, RazkarStudio.

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