pub fn unquote(s: &str) -> String {
if s.chars().count() < 2 {
return String::from(s);
}
let quote = s.chars().next().unwrap();
if quote != '"' && quote != '\'' && quote != '`' {
return String::from(s);
}
if s.chars().last().unwrap() != quote {
return String::from(s);
}
String::from(&s[1..s.len() - 1])
}