Listing 5. matchWords subroutine.
清单5 . matchwords子程序。
The matchWords subroutine takes two arguments: location to search, and words to search for.
matchWords 子例程包含两个参数：搜索位置和搜索的单词。
Once the keyword and display parameter hash has been built, we can move on to our simple keyword matching subroutine: matchWords.
构建了关键字和显示参数散列之后，接下来我们可以查看简单的关键字匹配子程序：matchWords。
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