An Unkindness of Ravens Fink. When Wexford does a favour for his wife—to look into the disappearance of one of their neighbours' husbands—everything he finds seems to confirm his first inkling: that this is simply another case of a bored middle-aged man having run off with a younger woman. However, when Rodney Williams is found dead, and another local man is stabbed in his car, Wexford finds himself thrown into an investigation involving a militant feministic organisation known as "Arria", who have taken the raven as their symbol. An Unkindness of Ravens An Unkindness of Ravens is a novel by British crime-writer Ruth Rendell.
Domain-specific language display variable dependencies, a consistency checker to catch missing cases in well-formed formulas in the specification, a model checker and a theorem prover to check program properties against the specification, and an invariant generator that automatically constructs invariants based on the requirements. Complementing language-oriented programming, as well as all other forms of domain-specific languages, are the class of compiler writing tools called metacompilers. A metacompiler is not only useful for generating parsers and code generators for domain-specific languages, but a metacompiler itself compiles a domain-specific metalanguage specifically designed for the domain of metaprogramming. Besides parsing domain-specific languages, metacompilers are useful