regex101: JavaScript Match Workspace

Explanation

Pro

^start of string

Non-Capturing Group(?:{[\dA-F]{8}(?:-([\dA-F]{4}-){3}|[\dA-F]{12})[0-9A-F]{12}}|$[\dA-F]{8}(?:-([\dA-F]{4}-){3}|[\dA-F]{12})[0-9A-F]{12}$|[\dA-F]{8}(?:-([\dA-F]{4}-){3}|[\dA-F]{12})[0-9A-F]{12})

1st Alternative{[\dA-F]{8}(?:-([\dA-F]{4}-){3}|[\dA-F]{12})[0-9A-F]{12}}

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Character Class[\dA-F]{8}

{8}matches exactly 8 characters from the set below:

\da digit

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

Non-Capturing Group(?:-([\dA-F]{4}-){3}|[\dA-F]{12})

1st Alternative-([\dA-F]{4}-){3}

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 1([\dA-F]{4}-){3}

{3}repeats the group contents below exactly 3 times:

Character Class[\dA-F]{4}

{4}matches exactly 4 characters from the set below:

\da digit

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

2nd Alternative[\dA-F]{12}

Character Class[\dA-F]{12}

{12}matches exactly 12 characters from the set below:

\da digit

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

Character Class[0-9A-F]{12}

{12}matches exactly 12 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative$[\dA-F]{8}(?:-([\dA-F]{4}-){3}|[\dA-F]{12})[0-9A-F]{12}$

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Character Class[\dA-F]{8}

{8}matches exactly 8 characters from the set below:

\da digit

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

Non-Capturing Group(?:-([\dA-F]{4}-){3}|[\dA-F]{12})

1st Alternative-([\dA-F]{4}-){3}

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 2([\dA-F]{4}-){3}

{3}repeats the group contents below exactly 3 times:

Character Class[\dA-F]{4}

{4}matches exactly 4 characters from the set below:

\da digit

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

2nd Alternative[\dA-F]{12}

Character Class[\dA-F]{12}

{12}matches exactly 12 characters from the set below:

\da digit

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

Character Class[0-9A-F]{12}

{12}matches exactly 12 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

3rd Alternative[\dA-F]{8}(?:-([\dA-F]{4}-){3}|[\dA-F]{12})[0-9A-F]{12}

Character Class[\dA-F]{8}

{8}matches exactly 8 characters from the set below:

\da digit

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

Non-Capturing Group(?:-([\dA-F]{4}-){3}|[\dA-F]{12})

1st Alternative-([\dA-F]{4}-){3}

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 3([\dA-F]{4}-){3}

{3}repeats the group contents below exactly 3 times:

Character Class[\dA-F]{4}

{4}matches exactly 4 characters from the set below:

\da digit

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

2nd Alternative[\dA-F]{12}

Character Class[0-9A-F]{12}

$end of string

Global pattern flags

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

Quick Reference

26 tokens

Regular Expression

^(?:{[\dA-F]{8}(?:-([\dA-F]{4}-){3}|[\dA-F]{12})[0-9A-F]{12}}|\([\dA-F]{8}(?:-([\dA-F]{4}-){3}|[\dA-F]{12})[0-9A-F]{12}\)|[\dA-F]{8}(?:-([\dA-F]{4}-){3}|[\dA-F]{12})[0-9A-F]{12})$

Regular Expressions 101

Regular Expression

Unit Tests