Regular Expressions 101

Group 1(\({0,1}\d{0,2}\){0,1} {0,1})

\({0,1}optionally matches the literal ( (40₁₀ / 50₈ / 28₁₆)

\d{0,2}a digit, repeated between 0 and 2 times

\){0,1}optionally matches the literal ) (41₁₀ / 51₈ / 29₁₆)

{0,1}optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

Group 2(\d{4,5})

\d{4,5}a digit, repeated between 4 and 5 times

{0,1}optionally matches the literal (32₁₀ / 40₈ / 20₁₆)

-{0,1}optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 3(\d{4})

\d{4}a digit, repeated exactly 4 times

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

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Search reference

Regular Expression

(\({0,1}\d{0,2}\){0,1} {0,1})(\d{4,5}) {0,1}-{0,1}(\d{4})

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