Introduction

Template based terminal coloring made really easy.

Usage

Tempera allows to add coloring to terminal in a really easy way.

Colorize strings

To colorize strings, simply use the colorize function, passing a vector of styles you want to apply. The list of supported color names correspondes to the keys of CODES variable.

use tempera::*; 
 
fn main() { 
  println!("{}", colorize("Colorized", &["red"])); 
  println!("{}", colorize("Colorized", &["red bgBlue"])); 
}

Colorize templates

To colorize a template using a tagged template syntax, simply use the colorize_template function.

use tempera::*; 
 
fn main() { 
  println!("{}", colorize_template("{red}This is in red, {green underline}this in green underlined{-}, this in red again."); 
}

The template recognizes styles between curly braces (use a single or double opening brace to escape them) and the token {-} as universal closing tag (which also restores the previous style).

The closing tag at the end of the string can be omitted, since tempera will append the global reset style (\u{1b}[0m) if any style was set.

If you want to discard styles to be restored, use the {reset} token.

Setting custom styles

If you want to define custom styles, use the add_style function.

use tempera::*; 
 
fn main() { 
  println!("{}", add_style("custom", &["yellow", "bgRed"]).is_ok()); 
}

256 and 16 millions colors support

tempera supports 256 ANSI codes and 16m RGB colors. Just give it a try:

use tempera::*; 
 
fn main() { 
  println!("{}", colorize("Colorized", &["ansi:100"])); 
  println!("{}", colorize("Colorized", &["bgANSI:3,4,5"])); 
  println!("{}", colorize("Colorized", &["rgb:255,0,0"])); 
  println!("{}", colorize("Colorized", &["bgRGB:0,255,0"])); 
  println!("{}", colorize("Colorized", &["hex:#FF0000"])); 
  println!("{}", colorize("Colorized", &["bgHEX:00FF00"])); 
}

ANSI, RGB, and HEX can be used in style definitions and templates as well.

API Documentation

The API documentation is hosted here.

Contributing to tempera

• Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet.
• Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it.
• Fork the project.
• Start a feature/bugfix branch.
• Commit and push until you are happy with your contribution.
• Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.

Copyright

Copyright (C) 2021 and above Shogun (shogun@cowtech.it).

Licensed under the ISC license, which can be found at https://choosealicense.com/licenses/isc.