Regular Expressions 101

Explanation

Pro

Group 1(\d+/\d+/\d+)

\d+a digit, repeated at least once

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\d+a digit, repeated at least once

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\d+a digit, repeated at least once

+the literal (32₁₀ / 40₈ / 20₁₆) , repeated at least once

Group 2((1[0-2]|0?[1-9]):([0-5][0-9]) ?([AaPp][Mm]))

Group 3(1[0-2]|0?[1-9])

1st Alternative1[0-2]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Character Class[0-2]

0-2one character from 0 (48₁₀) to 2 (50₁₀)

2nd Alternative0?[1-9]

0?optionally matches the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

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

Character Class[0-5]

0-5one character from 0 (48₁₀) to 5 (53₁₀)

Character Class[0-9]

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

?optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

Group 5([AaPp][Mm])

Character Class[AaPp]

Athe literal A (65₁₀ / 101₈ / 41₁₆) (case sensitive)

athe literal a (97₁₀ / 141₈ / 61₁₆) (case sensitive)

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case sensitive)

pthe literal p (112₁₀ / 160₈ / 70₁₆) (case sensitive)

Character Class[Mm]

Mthe literal M (77₁₀ / 115₈ / 4D₁₆) (case sensitive)

mthe literal m (109₁₀ / 155₈ / 6D₁₆) (case sensitive)

Positive Lookahead(?= +\d)

+the literal (32₁₀ / 40₈ / 20₁₆) , repeated at least once

\da digit

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

(\d+/\d+/\d+) +((1[0-2]|0?[1-9]):([0-5][0-9]) ?([AaPp][Mm]))(?= +\d)

New

of Los Angeles 12/19/2018 11:39 AM She
as a Unit 1/18/2019 8:30 AM 4 1.