regulus 0.0.14

A simple, interpreted language with very simple syntax and zero dependencies
Documentation 
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# Evaluates the argument as a boolean and returns `null` if it is true.
# If it is false, raise an `AssertionError` exception.
def(assert, cond, ifelse(
    cond,
    null,
    error("Assertion", "assertion failed")
)),

# Evaluates both arguments and compares then, returning `null` if they are equal.
# If not, raise an `AssertionError` exception with a message containing both values.
def(assert_eq, lhs, rhs, ifelse(
    ==(lhs, rhs),
    null,
    error("Assertion", strconcat("equality assertion failed
    lhs: `", printable(lhs), "`
    rhs: `", printable(rhs), "`")),
)),

# Evaluates both arguments and compares then, returning `null` if they are not equal.
# If not, raise an `AssertionError` exception with a message containing both values.
def(assert_ne, lhs, rhs, ifelse(
    ==(lhs, rhs),
    error("Assertion", strconcat("inequality assertion failed
    lhs: `", printable(lhs), "`
    rhs: `", printable(rhs), "`")),
    null,
)),