Ctrl+Enter uri expansion

binds.lua

-- Expand ':open example' to ':open www.example.com' when Ctrl+Return is pressed
add_binds("command", {
    key({"Control"},    "Return",   function (w)
        local tld = "com" -- The top level domain to be used on completion
        local input_tokens = split(w.ibar.input.text, "%s+")
        if input_tokens[1] == ":open" and #input_tokens == 2 then 
            w:enter_cmd(":open www." .. input_tokens[2] .. '.' .. tld)
        end
        w:activate()
    end)
})