Rolls dice using a small expression language:
The simplest expression is just a number, indicating to roll
a die with that many sides, ie: dice 20 or dice d20 to roll a 20 sided die.
If you want to roll multiple dice you can specify how many with a prefix,
for example three dice with six sides each would be 3d6.
You can then specify how many dice to keep or drop from the roll. To drop dice
use d or D to drop low rolls or high rolls respectively. For example,
4d6d1 says to "roll four dice with six sides dropping the lowest die", whereas
2d20D1 says to "roll two dice with twenty sides each dropping the higher one".
The same thing works for keep with k and K, with k meaning to keep higher
rolls and K to keep lower rolls. This is different from d and D. Basically
it defaults (lower case) to the belief you want high rolls, therefore that is
easier to type (no need for the shift to get capital) :-) If you find it annoying
to use, let me know and I'll consider changing it in a future version.
Finally, you may add a constant modifier to the roll by appending + or - and
a value, such as 4d6+1 3d6-2 or 2d20K1+7
You can also send multiple expressions:
dice 4d6d1 4d6d1 4d6d1 4d6d1 4d6d1 4d6d1
In summary:
d20 1 x d20
3d6 3 x d6
4d6d1 3 x d6 dropping lowest
20+1 1 x d20 and add one to the result
2d8K1-1 2 x d8 keep the higher and subtract 1
Trivial die rolling expression parser, exists primarily to play with pest and because my son wanted one :-)