Regular Expressions 101

Pro

Character Class[A-Z]{1,}

{1,}matches at least one character from the set below:

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

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

\d+a digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

\s{3,}any whitespace character, repeated at least 3 times

\d+a digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[A-Za-z0-9]{4}

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

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

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

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

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

x

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25 tokens

Regular Expression

[A-Z]{1,}.*?\d+-\d+-\d+-\d+[\s\S]*?\s{3,}\d+-\d+-\d+-[A-Za-z0-9]{4}

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