Regular Expressions 101

Explanation

Pro

\ba Unicode word boundary

CRLthe literal text CRL (case sensitive)

Non-Capturing Group(?:-[A-Z]{3}){4}

{4}repeats the group contents below exactly 4 times:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[A-Z]{3}

{3}matches exactly 3 characters from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Non-Capturing Group(?:\d{6}|X{6})

1st Alternative\d{6}

\d{6}a Unicode decimal digit, repeated exactly 6 times

2nd AlternativeX{6}

X{6}the literal X (88₁₀ / 130₈ / 58₁₆) (case sensitive), repeated exactly 6 times

\ba Unicode word boundary

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

\bCRL(?:-[A-Z]{3}){4}-(?:\d{6}|X{6})\b

New

Doc CRL-KRD-TUN-LKA-CWP-800018
Doc CRL-SYW-CON-LKA-TMP-XXXXXX

Doc CRL-KRD-TUN-LKA-CWP-800018
Doc CRL-SYW-CON-LKA-TMP-XXXXXX