async_http_router 0.0.4

a simple http_router for web server
Documentation 
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use regex;

pub struct UrlMatcher {
    urls: Vec<&'static str>,
    url_pattern: Vec<regex::Regex>,
    match_set: regex::RegexSet,
}
impl UrlMatcher {
    pub fn new() -> UrlMatcher {
        UrlMatcher {
            urls: Vec::new(),
            url_pattern: Vec::new(),
            match_set: regex::RegexSet::new(&[""]).unwrap(),
        }
    }
    pub fn add_url(&mut self, url: &'static str) {
        self.urls.push(url);
        self.url_pattern.push(regex::Regex::new(url).unwrap());
        self.match_set = regex::RegexSet::new(self.urls.as_slice()).unwrap()
    }
    pub fn gen_url_regex_set(&self) -> regex::RegexSet {
        regex::RegexSet::new(self.urls.as_slice()).unwrap()
    }
    pub fn match_url<'a>(
        &'a self,
        url: &str,
    ) -> Result<(&'a regex::Regex, &'static str), &'static str> {
        let matches: Vec<_> = self.match_set.matches(url).into_iter().collect();
        match matches.is_empty() {
            true => Err(""),
            false => {
                let index = matches[0];
                Ok((&self.url_pattern[index], self.urls[index]))
            }
        }
    }
}