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Programming language: Rust
License: GNU General Public License v3.0 or later
Tags: Testing     Terminal     Color     Command-line     Style    

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README

  • description: create and test the style and formatting of text in your terminal applications
  • docs: https://docs.rs/termstyle

termstyle is a library that aims to make it easy to build (and test) formatted and styled command line applications. It supports the following "elements":

  • styled-text
    • italic
    • bold
    • colors
  • tables: composed of styled text with identical width columns

Text can be constructed programatically by pushing tokens onto a vector and then paint()ing them, or by parsing a yaml file. This allows you to easily write unit tests for your command line applications.

Example

Given the following config (written in yaml):

- {t: "-- EXAMPLE --\n", b: true}
- "This is a regular string with a newline\n"
- "This does not have a newline, but "
- {t: "this is red", c: red}
- ", but this is NOT red!\n"
- "Bold is easy like this: "
- {t: "see I'm bold!!\n", b: true}
- And so is multiple settings
- # long-form
  t: |

      bold AND green!
      and even multiple lines :) :)
  b: true
  c: green
- ["\nyou can group multiple text items ", {t: "on one line!", b: true}]
- "\nGrouping things in one line is necessary for tables\n"
- "Notice that some cells are grouped and some are not.\n\n"
- [{t: "# Table", b: true}, "\n"]
-
  table:
  - [["header ", {t: "col1", b: true}] ,"| header col2"]
  - ["row col1", ["| ", {t: "row col2", c: green}]]

Use the following to render it:

let els = termstyle::from_str(serde_yaml::from_str, example).unwrap();
termstyle::paint(&mut ::std::io::stdout(), &els).unwrap();

Which gets rendered as:

[rendered](img/example.png)

You can also create the "stream of elements" using the types provided by the library. For more information, see the library docs.

LICENSE

The source code is Licensed under either of

at your option.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.


*Note that all licence references and agreements mentioned in the termstyle README section above are relevant to that project's source code only.