Regular Expressions 101

Pro

Group 1(\G(?!^)|<TAG>(?=.*?</TAG>))

1st Alternative\G(?!^)

\Gstart of current search

Negative Lookahead(?!^)

^start of string

2nd Alternative<TAG>(?=.*?</TAG>)

<TAG>the literal text <TAG> (case sensitive)

Positive Lookahead(?=.*?</TAG>)

.*?any character, repeated any number of times

</TAG>the literal text </TAG> (case sensitive)

Group 2((?:(?!<TAG>|</TAG>).)*?)

Non-Capturing Group(?:(?!<TAG>|</TAG>).)*?

*?repeats the group contents below any number of times:

Negative Lookahead(?!<TAG>|</TAG>)

1st Alternative<TAG>

<TAG>the literal text <TAG> (case sensitive)

2nd Alternative</TAG>

</TAG>the literal text </TAG> (case sensitive)

.any character

abc-the literal text abc- (case sensitive)

Global pattern flags

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

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

Detailed match information will be displayed here automatically.

25 tokens

(\G(?!^)|<TAG>(?=.*?</TAG>))((?:(?!<TAG>|</TAG>).)*?)abc-

New

<TAG>test-test-abc-abc-test-abc-test-</TAG>test-abc-test-abc-<TAG>test-abc-test-abc-abc-</TAG>

$1$2

<TAG>test-test-abc-abc-test-abc-test-</TAG>test-abc-test-abc-<TAG>test-abc-test-abc-abc-</TAG>