Regular Expressions 101

Pro

Group 1(\()

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

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

Group 2(.*)

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

Character Class[ ]?

?matches at most one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

==the literal text ==

Character Class[ ]?

?matches at most one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

nullthe literal text null (case sensitive)

Character Class[ ]?

?matches at most one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

\|the literal | (124₁₀ / 174₈ / 7C₁₆)

Character Class[ ]?

?matches at most one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

Group 3(.*)

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

.any character (except for line terminators)

lengththe literal text length (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Character Class[ ]?

?matches at most one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

==the literal text ==

Character Class[ ]?

?matches at most one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

26 tokens

(\().*(.*)[ ]?==[ ]?null[ ]?\|\|[ ]?(.*).length\(\)[ ]?==[ ]?0

New

(companyId != null && companyId.length() > 0 )
(companyId != null && companyId.length() > 0 )
(campaignId == null || campaignId.length() == 0)

$1StringUtils.isBlank($3)

(companyId != null && companyId.length() > 0 )
(companyId != null && companyId.length() > 0 )
(campaignId == null || campaignId.length() == 0)