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\s matches any whitespace character [ \r\n\t\f ].
[ \r\n\t\f ]
\S matches any non-white space character.
You have a test string . Your task is to match the pattern
Here, denotes whitespace characters, and denotes non-white space characters.
This is a regex only challenge. You are not required to write code.
You have to fill the regex pattern in the blank (_________).