diceroll is a simple command-line dice roller.
It can be invoked through the roll command once installed.
The basic components of ``diceroll`` expressions are dice and integers, which can then have operators applied to them. The expression is always read left-to right, so operators are called in order of position, *not* order of precedence.
Dice are expressed in the form ``< N >d< S >``, where ``N`` is the number of dice that will be rolled, and ``S`` is the number of sides those dice have.
Integers are simply expressed as one or more digits (i.e. ``0-9``).
Subexpressions can be placed in parenthesis ``()``, and are evaluated in full before the main expression is evaluated.