Create a parser class to parse xml implement

pub struct Parser {
  pub name: String,
}

impl Parser {
  pub fn parse(&self, text: &str) -> Result<Vec<String>, std::io::Error> {
    let re = Regex::new(r"<(\w+)").unwrap();
    let mut matched = Vec::with_capacity(10);

    for cap in re.captures_iter(text) {
      matched.push(cap[1].to_string());
    }

    match matched.len() {
      0 => Err(std::io::Error::new(std::io::ErrorKind::Other, "no match found")),
      _ => Ok(matched),
    }
  }
}