Regular Expressions 101

^start of line

remind methe literal text remind me (case sensitive)

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

Non-Capturing Group(?:.*?\b(to|that|about|its|it's)\b *)?

?repeats the group contents below at most once:

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

\ban ASCII word boundary

Group 1(to|that|about|its|it's)

1st Alternativeto

tothe literal text to (case sensitive)

2nd Alternativethat

thatthe literal text that (case sensitive)

3rd Alternativeabout

aboutthe literal text about (case sensitive)

4th Alternativeits

itsthe literal text its (case sensitive)

5th Alternativeit's

it'sthe literal text it's (case sensitive)

\ban ASCII word boundary

*the literal (32₁₀ / 40₈ / 20₁₆) , repeated any number of times

Group 2(.*)

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

$end of line

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.

Search reference

Regular Expression

^remind me +(?:.*?\b(to|that|about|its|it's)\b *)?(.*)$

New

remind me in 24 hours test
remind me in 24 hours to test