It can be configured using both conventional strings and regular expressions.
你可以配置使用常规字符串和正则表达式。
Regular expressions are basically a small sub-language built for text processing, used to match and replace strings of characters.
正则表达式基本上就是为进行文本处理而构建的一种小型的子语言，用来进行字符串的匹配和替换。
Moreover, Friedl's book includes some truly mind-blowing regular expressions to properly match fully qualified e-mail addresses and other Request for Comments- (RFC) specified strings.
此外，Friedl 的书还包括一些令人惊叹的正则表达式，可以准确地匹配完全限定的电子邮件地址和其他 Request for Comments (RFC) 特定的字符串。
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