Operators
class Operators<S, C, R>(val prefix: Map<String, ConfigurableExpressionParser.Operator.Unary<S, C, R>>, val infixOrSuffix: Map<String, ConfigurableExpressionParser.Operator<S, C, R>>)
Maps operator names to their arity, precedence and build function.
Use the companion infix, prefix and suffix methods to configure the parser via the operators vararg constructor parameter.