rscel 1.0.8

Cel interpreter in rust
Documentation 
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use crate::macros::dispatch;

pub use methods::dispatch as match_captures;

#[dispatch]
mod methods {
    use crate::CelValue;

    fn match_captures(this: String, needle: String) -> CelValue {
        internal::matches(&this, &needle)
    }

    mod internal {
        use regex::Regex;

        use crate::{CelError, CelValue};

        pub fn matches(haystack: &str, needle: &str) -> CelValue {
            match Regex::new(needle) {
                Ok(re) => match re.captures(haystack) {
                    Some(c) => c
                        .iter()
                        .map(|s| match s {
                            Some(s) => s.as_str().into(),
                            None => CelValue::Null,
                        })
                        .collect::<Vec<_>>()
                        .into(),
                    None => CelValue::Null,
                },
                Err(err) => {
                    return CelError::value(&format!("Invalid regular expression: {}", err)).into()
                }
            }
        }
    }
}