function getUrbanDictionary(text) local topic = string.match(text, "/ud (.+)") topic = url_encode(topic) b = http.request("http://api.urbandictionary.com/v0/define?term=" .. topic) res = json:decode(b) local definition = nil if #res.list > 0 then definition = res.list[1].word..": "..res.list[1].definition.."\n".. res.list[1].permalink else definition = nil end return definition end function url_encode(str) if (str) then str = string.gsub (str, "\n", "\r\n") str = string.gsub (str, "([^%w %-%_%.%~])", function (c) return string.format ("%%%02X", string.byte(c)) end) str = string.gsub (str, " ", "+") end return str end function run(msg, matches) local text = getUrbanDictionary(msg.text) if (text == nil) then return "Zzzzz..." else return text end end return { description = "get urban dictionary definition", usage = "/ud [topic]", patterns = {"^/ud (.*)$"}, run = run }