这里的业务逻辑是由用户自定义的函数子实现，并且这些函数子只能用在逻辑记录处理的工作上，而不用关心多个处理操作的问题。

The business logic is implemented in user-definable functors that only work on logical record processing and aren't concerned with multiprocessing issues.

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第2部分把scoresortresults子例程注入到主程序逻辑中来给每条匹配的记录评分、给结果列表排序并将其传递给显示步骤。

Part 2 injects the scoreSortResults subroutine into the main program logic to score each matched record, sort the resulting list, and pass it on to the display step.

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