#[macro_use] extern crate quote;

fn gen_zip_tuple(v: &[&str]) -> String {
    if v.len() >= 2 {
        let v0 = v[0];
        let v1 = v[1];
        v.iter().skip(2).fold(quote!{(#v0,#v1)}, |q, &v| {quote!{(#q, #v)}} )
    } else {
        let v0 = v[0];
        quote!{(#v0)}
    };
}

fn main() {
    let v = vec!["a","b","c"];
    println!("{}", gen_zip_tuple(&v).to_string());
}