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Its capability is very simple and does not even include regular expression matching.
这个功能非常简单，甚至不包含正则表达式匹配。
youdao
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Note that this is not regular expression matching as used by grep.
注意：这不是grep使用的正则表达式匹配。
youdao
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Note that this is not regular expression matching as used by grep.
注意：这不是grep使用的正则表达式匹配。
youdao