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  • .

    Any single character except a newline.


    The beginning of the line or string.


    The end of the line or string.


    Zero or more of the last character.


    One or more of the last character.


    Zero or more of the last character.


    A newline.


    Any alphanumeric word.


    Any non-word character.


    Any digit.


    Any non-digit.


    Any whitespace character.


    Any non-whitespace character.


    A word boundary.


    No word boundary.

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