Regular Expressions 101

Explanation

Pro

^start of line

Group 1(\d\d\/\d\d\/\d\d\d\d.*?)

\da Unicode decimal digit

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\da Unicode decimal digit

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\da Unicode decimal digit

.*?any Unicode character, repeated any number of times

Positive Lookahead(?=^^\d\d\/\d\d\/\d\d\d\d|\Z)

1st Alternative^^\d\d\/\d\d\/\d\d\d\d

^start of line

\da Unicode decimal digit

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\da Unicode decimal digit

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\da Unicode decimal digit

2nd Alternative\Z

\Zend of string

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

s modifier: single line. Allows a dot to match line terminators

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

^(\d\d\/\d\d\/\d\d\d\d.*?)(?=^^\d\d\/\d\d\/\d\d\d\d|\Z)

New

06/01/2016, 10:40 pm - abcde
07/01/2016, 12:04 pm - abcde
07/01/2016, 12:05 pm - abcde
07/01/2016, 12:05 pm - abcde
07/01/2016, 6:14 pm - abcde

fghe
07/01/2016, 6:20 pm - abcde
07/01/2016, 7:58 pm - abcde

fghe

ijkl
07/01/2016, 7:58 pm - abcde