Function main

gopher/src/main.rs:223–297

()

#[no_mangle]
fn main() {
    // A vector of previous pages visited
    let mut back: Vec<Page> = Vec::new();

    // Pages in the forward direction
    let mut forward: Vec<Page> = Vec::new();

    // Set the landing page
    let mut current_page = Page::new(
        "gopher.floodgap.com", "", 70, true);
    loop {
        let mut path: String = String::from("/tcp/");
        path.push_str(&current_page.host);
        path.push_str("/");
        path.push_str(&current_page.port.to_string());

        let (mem_handle, length) = gopher(&path, &current_page.selector).expect("Couldn't gopher");
        let data = str::from_utf8(mem_handle.as_slice::<u8>(length as usize)).expect("invalid utf8");

        current_page = match display_text(data,
                                          &current_page.host,
                                          current_page.is_map) {
            Command::Quit => {
                println!("[gopher] Bye!");
                return;
            }
            Command::Back => {
                // Remove last page from history
                if let Some(page) = back.pop() {
                    // Save the current page so we can go forward
                    forward.push(current_page);
                    page
                } else {
                    // Can't go back
                    current_page
                }
            }
            Command::Forward => {
                if let Some(page) = forward.pop() {
                    back.push(current_page);
                    page
                } else {
                    // Can't go forward
                    current_page
                }
            }
            Command::Link(link_str) => {
                // Link
                let (_display, selector, hostname, port_str) = {
                    let mut sections = link_str[1..].split('\t');
                    (sections.next().unwrap_or(""),
                     sections.next().unwrap_or(""),
                     sections.next().unwrap_or(""),
                     sections.next().unwrap_or(""))};

                if let Ok(port) = port_str.parse::<u16>() {
                    // Save the curent page and reset forward pages
                    back.push(current_page);