Die rolls for other odd systems?

Hi! I got a Swedish rpg that use a special type of exploding dice, and I'm wondering how to best replicate them in roll20. The system is d6-based. Some rolls, particularly for damage, uses a sort of "unlimited" exploding rolls -thingy. The rules are as follows: Any d6 that ends on a 6 will be rerolled with one more dice. Again, if one of those lands on a six, discard it and roll 2d6 in its place. Continue untill no dice ends on a 6. Never count the sixes when summing the roll up. Example: rolling 3d6 results in 2, 5 and 6. the six is rerolled with another dice, resulting in 6 and 4, reroll the 6 with another, and you get 3 and 1. Sum it up (and don't count the sixes) and you will have 2+5+4+3+1=15. This ofcourse leads to a lot of sillyness, one example being the quite real possibility of killing a dragon with a butterknife. Again, my question, is this possible to achieve this with the roll20 roll-system? The only similar thing i found was the compounding exploding dice (the shadowrun variant), but it's only similar, not exactly what I want. If not possible, then I'll be heading off to the suggestions department. :)

That specific dice roll is not possible that I know of at this time. You are asking it to ignore a die roll if it is a specific number then add 2 more dice rolls into it. I think someone else mentioned this type of roller before but not sure when. They were talking about some swedish rpg they discovered.

The API should be able to handle this. I would ask the API forum. Note: the API requires a mentor membership.