Shared via Rust Playground

playground.rs

fn main() {
    let spec = r#"PASS s
NICK s
USER s s s
OPER s s
MODE s s os
SERVICE s s s s s s
QUIT os
SQUIT s s
JOIN s os os
PART s os
TOPIC s os
NAMES os os
LIST os os
INVITE s s
KICK s s os
PRIVMSG s s
NOTICE s s
MOTD os
LUSERS os os
VERSION os
STATS os os
LINKS os os
TIME os
CONNECT s s os
TRACE os
ADMIN os
INFO os
SERVLIST os os
SQUERY s s
WHO os Option<bool>
WHOIS os s
WHOWAS s os os
KILL s s
PING s os
PONG s os
ERROR s
AWAY os
REHASH
DIE
RESTART
SUMMON s os os
USERS os
WALLOPS s
USERHOST vs
ISON vs
SAJOIN s s
SAMODE s s os
SANICK s s
SAPART s s
SAQUIT s s
NICKSERV s
CHANSERV s
OPERSERV s
BOTSERV s
HOSTSERV s
MEMOSERV s
CAP os CapSubCommand os os
AUTHENTICATE s
ACCOUNT s
METADATA s Option<MetadataSubCommand> ovs os
MONITOR s os
BATCH s Option<BatchSubCommand> ovs
CHGHOST s s
Response Response vs os
Raw s vs os
"#;
    for line in spec.lines() {
        do_line(line);
    }
}

fn do_line(line: &str) {
    let tok = line.trim().split(' ').collect::<Vec<&str>>();
    if tok.len() == 1 {
        println!("{},", tok[0]);
    } else if tok.len() > 1 {
        println!("{}(Ros<'a, ({}), ({})>),",
            tok[0],
            tok.iter().skip(1).map(|&tok| match tok {
                "s" => "Range<usize>",
                "os" => "Option<Range<usize>>",
                "vs" => "Vec<Range<usize>>",
                "ovs" => "Option<Vec<Range<usize>>>",
                _ => tok
            }).collect::<Vec<&str>>().join(", "),
            tok.iter().skip(1).map(|&tok| match tok {
                "s" => "Cow<'a, str>",
                "os" => "Option<Cow<'a, str>>",
                "vs" => "Vec<Cow<'a, str>>",
                "ovs" => "Option<Vec<Cow<'a, str>>>",
                _ => tok
            }).collect::<Vec<&str>>().join(", "));
        
    }
}