# derby

Erlang dice rolling library using leex and yecc.

## Examples
```erlang
1> derby:query("4d6h3").
[{result,14,[6,4,4],[4,4,6,2],0}]

2> derby:parse("4d6h3").
[{roll,[6,6,6,6],0,[{high,3}]}]

3> derby:roll({roll,[20,20],3,[{high, 1}]}).
[{result,16,[13],[13,12],3}]

4> [Roll] = derby:parse("2d20l1", 20),
5> derby:chance(Roll,20).
0.0025

6> derby:format("I cast fireball for ~p damage. My intimidation check is a ~p.", ["10d6, 2d20h1"]).
"I cast fireball for 33 damage. My intimidation check is a 17."
```