Regular Expressions 101

Pro

^start of line

\d{0,3}a digit, repeated between 0 and 3 times

Character Class[A-Z]{0,1}

{0,1}matches at most one character from the set below:

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

\/?optionally matches the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[1,3]?

?matches at most one character from the set below:

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

$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

Detailed match information will be displayed here automatically.

26 tokens

^\d{0,3}[A-Z]{0,1}\/?[1,3]?$

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