How to handle deep linking? (command parameters, like /start test)

I couldn’t find anything about how can I handle command parameters. bot.command does not support regexes, which means I cannot make it handle deep linking params I have a code such as this:

bot.command('start', ctx => startstuff()) 

bot.hears(/^\/start (.*)$/, ctx => registerReferral()) 

registerReferral() doesnt get fired when using https://telegram.me/mybot?start=test link to access and start it. Instead startstuff() responds.

[Piterden]

bot.hears(/^\/start[ =](.+)$/, (ctx) => registerReferral(ctx.match[1]))

[Piterden]

(ctx) => {
  let args = message.text.split(' ')
}

What if I have

/command      arg1=val1       arg2=val2

, @Christian-X?

But if you do split(/ +/)