Regular Expressions 101

^start of line

Character Class[A-Z]

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

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[A-Z]{2}

{2}matches exactly 2 characters from the set below:

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

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[A-Z]{4}

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

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

\-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)

\w{4}any word character, repeated exactly 4 times

$end of line

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

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Search reference

Regular Expression

^[A-Z]\-[A-Z]{2}\-[A-Z]{4}\-[A-Z]{3}\-\w{4}$

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