Simple Suggestion - Update /roll

Hey there, so I think it would be kinda' fun to get a group together to play D&D in-game (I know, I know, a game within a game).

Is there any chance that we can update the /roll command so that we can have specific dice mathematics?

/roll will do what it does now, 1-100
Info> Endal tosses the dice and rolls a 33.

/roll x will give a number between 1-x
Info> Endal tosses a x sided dice and rolls x.

/roll x+y will give a number between 1-x +y
Info> Endal tosses a x sided dice (+y) and rolls z. (z is x+y)

/roll x-y will give a number between 1-x -y
Info> Endal tosses a x sided dice (-y) and rolls z. (z is x-y)
(etc)

It would be cool if we could get this more complex, too so we can roll multiple dice
/roll w~x+y will roll w number of x sided dice plus y
Info> Endal tosses w x sided dice (-y) and rolls z. (z is x-y + (each of the dice repeated))

Any thoughts?

It'd have a lot of use - especially considering the relatively large roleplay community. I'm sure there are events etc that could make good use of it as well as those fond of creating their own D&D scenarios. If it isn't a huge undertaking I see this being a relatively small development task with the potential of opening up a lot of avenues for player hosted entertainment.

If this goes through I have a few campaigns I could easily run. We can even meet up at a tavern and get drunk while we play!

this sounds fun!