https://github.com/zzau13/v_eval

Expression evaluator with context
https://github.com/zzau13/v_eval

evaluate-expressions rust

Last synced: 10 days ago
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Expression evaluator with context

• Host: GitHub
• URL: https://github.com/zzau13/v_eval
• Owner: zzau13
• License: apache-2.0
• Created: 2020-04-25T18:05:41.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2024-05-05T10:11:14.000Z (about 1 year ago)
• Last Synced: 2025-05-05T04:17:18.973Z (18 days ago)
• Topics: evaluate-expressions, rust
• Language: Rust
• Homepage:
• Size: 62.5 KB
• Stars: 4
• Watchers: 1
• Forks: 1
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGES.md
  • License: LICENSE-APACHE
  • Code of conduct: CODE_OF_CONDUCT.md

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README

        
# v_eval [![Documentation](https://docs.rs/v_eval/badge.svg)](https://docs.rs/v_eval/) [![Latest version](https://img.shields.io/crates/v/v_eval.svg)](https://crates.io/crates/v_eval)

Expression evaluator with context

```rust

use v_eval::{Value, Eval};

fn main() -> Result<(), ()> {

    let e = Eval::default()

        .insert("foo", "true")?

        .insert("bar", "false")?;

    assert_eq!(e.eval("foo != bar").unwrap(), Value::Bool(true));

    assert_eq!(

        e.eval("true && foo != bar && true").unwrap(),

        Value::Bool(true)

    );

    assert_eq!(e.eval("1 == 1 != bar").unwrap(), Value::Bool(true));

    assert_eq!(e.eval("1 == 1 + 1 == bar").unwrap(), Value::Bool(true));

    

    Ok(())

}

```

## Contributing

Please, contribute to v_eval! The more the better! Feel free to to open an issue and/or contacting directly with the 

owner for any request or suggestion.

## Code of conduct

This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]

[homepage]: http://contributor-covenant.org

[version]: http://contributor-covenant.org/version/1/4/

## License

This project is distributed under the terms of both the Apache License (Version 2.0) and the MIT license, specified in 

[LICENSE-APACHE](LICENSE-APACHE) and [LICENSE-MIT](LICENSE-MIT) respectively.