让我们使用为纵横字谜助手创建的一些代码，创建从一个单词生成单词链的脚本(参见清单12)。

Let's create a script to generate word chains from a single word, using some of the code we created for the crossword helper (see Listing 12).

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要确保对链中所有类的正确初始化，实现者必须手动编写超类方法调用的代码，如清单 11 所示。

To guarantee the correct initialization for all the classes in the chain, the implementer must manually code the superclass method invocation as shown in Listing 11.

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Ranvier并不使用正则表达式把公共uri重写成私有uri，而是实现责任链(chain - of - responsibility)设计模式，把资源判断任务委托给相关代码。

Instead of using regular expressions to rewrite public URIs onto private ones, Ranvier implements a chain-of-responsibility design pattern to delegate resource determination to relevant code.

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