regex101: PCRE (Legacy) Match Workspace

Pro

\ban ASCII word boundary

Non-Capturing Group(?:(?:0[1-9]|1\d|2[0-8])\/(?:02)\/(?:\d+)|(?:0[1-9]|1\d|2\d)\/(?:02)\/(?:(?:\d*?(?:(?:(?!00)[02468][048]|[13579][26])|(?:(?:[02468][048]|[13579][26])00))|[48]00|[48])(?=\D))|(?:0[1-9]|1\d|2\d|30)\/(?:0[469]|11)\/(?:\d+)|(?:0[1-9]|1\d|2\d|3[01])\/(?:0[13578]|1[02])\/(?:\d+))

1st Alternative(?:0[1-9]|1\d|2[0-8])\/(?:02)\/(?:\d+)

Non-Capturing Group(?:0[1-9]|1\d|2[0-8])

1st Alternative0[1-9]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

2nd Alternative1\d

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\da digit

3rd Alternative2[0-8]

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Character Class[0-8]

0-8one character from 0 (48₁₀) to 8 (56₁₀)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:02)

02the literal text 02

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:\d+)

\d+a digit, repeated at least once

2nd Alternative(?:0[1-9]|1\d|2\d)\/(?:02)\/(?:(?:\d*?(?:(?:(?!00)[02468][048]|[13579][26])|(?:(?:[02468][048]|[13579][26])00))|[48]00|[48])(?=\D))

Non-Capturing Group(?:0[1-9]|1\d|2\d)

1st Alternative0[1-9]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

2nd Alternative1\d

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\da digit

3rd Alternative2\d

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

\da digit

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:02)

02the literal text 02

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:(?:\d*?(?:(?:(?!00)[02468][048]|[13579][26])|(?:(?:[02468][048]|[13579][26])00))|[48]00|[48])(?=\D))

Non-Capturing Group(?:\d*?(?:(?:(?!00)[02468][048]|[13579][26])|(?:(?:[02468][048]|[13579][26])00))|[48]00|[48])

1st Alternative\d*?(?:(?:(?!00)[02468][048]|[13579][26])|(?:(?:[02468][048]|[13579][26])00))

\d*?a digit, repeated any number of times

Non-Capturing Group(?:(?:(?!00)[02468][048]|[13579][26])|(?:(?:[02468][048]|[13579][26])00))

1st Alternative(?:(?!00)[02468][048]|[13579][26])

Non-Capturing Group(?:(?!00)[02468][048]|[13579][26])

1st Alternative(?!00)[02468][048]

Negative Lookahead(?!00)

00the literal text 00

Character Class[02468]

Character Class[048]

2nd Alternative[13579][26]

2nd Alternative(?:(?:[02468][048]|[13579][26])00)

2nd Alternative[48]00

3rd Alternative[48]

Positive Lookahead(?=\D)

3rd Alternative(?:0[1-9]|1\d|2\d|30)\/(?:0[469]|11)\/(?:\d+)

4th Alternative(?:0[1-9]|1\d|2\d|3[01])\/(?:0[13578]|1[02])\/(?:\d+)

\ the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:(?:0\d|1[01]):(?:[0-5]\d):(?:[0-5]\d)(?:\.(?:\d{3}))?\ ?(?:(?i)[ap]m|[ap]\.m\.(?-i))|(?:[01]\d|2[0-3]):(?:[0-5]\d):(?:[0-5]\d)(?:\.(?:\d{3}))?)

\ban ASCII word boundary

Global pattern flags

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

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

25 tokens

Regular Expression

\b(?:(?:0[1-9]|1\d|2[0-8])\/(?:02)\/(?:\d+)|(?:0[1-9]|1\d|2\d)\/(?:02)\/(?:(?:\d*?(?:(?:(?!00)[02468][048]|[13579][26])|(?:(?:[02468][048]|[13579][26])00))|[48]00|[48])(?=\D))|(?:0[1-9]|1\d|2\d|30)\/(?:0[469]|11)\/(?:\d+)|(?:0[1-9]|1\d|2\d|3[01])\/(?:0[13578]|1[02])\/(?:\d+))\ (?:(?:0\d|1[01]):(?:[0-5]\d):(?:[0-5]\d)(?:\.(?:\d{3}))?\ ?(?:(?i)[ap]m|[ap]\.m\.(?-i))|(?:[01]\d|2[0-3]):(?:[0-5]\d):(?:[0-5]\d)(?:\.(?:\d{3}))?)\b

Unit Tests

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