Regular Expressions 101

Group 1(.*)?

?repeats the group contents below at most once:

.*any character (except for line terminators), repeated any number of times

\s+any whitespace character, repeated at least once

Group 2([0-9]+)

Character Class[0-9]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

.*any character (except for line terminators), repeated any number of times

Character Class[회]?

?matches at most one character from the set below:

회the literal 회 (54924₁₀ / 153214₈ / D68C₁₆)

\s+any whitespace character, repeated at least once

Group 3([0-9]{1,2})

Character Class[0-9]{1,2}

{1,2}matches between 1 and 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 4([0-9]{1,2})

Character Class[0-9]{1,2}

{1,2}matches between 1 and 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 5([0-9]{4})

Character Class[0-9]{4}

{4}matches exactly 4 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(.*)?\s+([0-9]+).*[회]?\s+([0-9]{1,2})\/([0-9]{1,2})\/([0-9]{4})

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무한도전 33회 12/12/2017

나혼자산다 111 13/12/2017