Regular Expressions 101

Pro

^start of line

Branch Reset Group(?|.*?through (.+?) at|(.+))

1st Alternative.*?through (.+?) at

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

through the literal text through (case sensitive)

Group 1(.+?)

.+?any character (except for line terminators), repeated at least once

atthe literal text at (case sensitive)

2nd Alternative(.+)

Group 1(.+)

.+any character (except for line terminators), repeated at least once

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

^(?|.*?through (.+?) at|(.+))

New

Beginning through June 18, 2022 at Noon standard time
June 18, 2022
Beginning through June 18, 2022 at Noon standard time
abc

Beginning through June 18, 2022 at Noon standard time
June 18, 2022
Beginning through June 18, 2022 at Noon standard time
abc