dice | An interactive command-line dice roller

dice is a C library. dice has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Dice reads in expressions in a subset of [dice notation][] from stdin, evaluates them, and prints the result to stdout. It works like a regular calculator supporting basic arithmetic (+, -, *, and /) and parentheses, along with two additional operators: d (for "dice"), and k (for "keep"). The "dice" operator requires two operands, which may be arbitrarily complex expressions. Omitting an operand is an error. The d operator has a higher precedence than +. The last example is admittedly silly. Note that each subexpression is only evaluated once.