如果该字符完成了一个单词，编辑程序决定是否将该词添加到索引中。

If the character completes a word, the editor determines whether that word should be added to the index.

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与对象相联允许您通过索引获取推荐字符。

Having access to this object allows you to retrieve a suggestion String by index.

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它可以创建任意长度的单词前缀索引和可变长度的中缀子字符串的索引。

It can create indexes of word prefixes of arbitrary length and indexes of infix substrings of varying lengths.

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