Regular Expressions 101

Explanation

Pro

Group 1((?:\+|00)[17](?: |\-|\.)?|(?:\+|00)[1-9]\d{0,2}(?: |\-|\.)?|(?:\+|00)1\-\d{3}(?: |\-|\.)?)?

?repeats the group contents below at most once:

1st Alternative(?:\+|00)[17](?: |\-|\.)?

Non-Capturing Group(?:\+|00)

1st Alternative\+

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

2nd Alternative00

00the literal text 00

Character Class[17]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

7the literal 7 (55₁₀ / 67₈ / 37₁₆)

Non-Capturing Group(?: |\-|\.)?

?repeats the group contents below at most once:

1st Alternative

the literal (32₁₀ / 40₈ / 20₁₆)

2nd Alternative\-

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

3rd Alternative\.

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

2nd Alternative(?:\+|00)[1-9]\d{0,2}(?: |\-|\.)?

Non-Capturing Group(?:\+|00)

1st Alternative\+

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

2nd Alternative00

00the literal text 00

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

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

Non-Capturing Group(?: |\-|\.)?

?repeats the group contents below at most once:

1st Alternative

the literal (32₁₀ / 40₈ / 20₁₆)

2nd Alternative\-

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

3rd Alternative\.

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

3rd Alternative(?:\+|00)1\-\d{3}(?: |\-|\.)?

Non-Capturing Group(?:\+|00)

1st Alternative\+

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

2nd Alternative00

00the literal text 00

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d{3}a digit, repeated exactly 3 times

Non-Capturing Group(?: |\-|\.)?

?repeats the group contents below at most once:

1st Alternative

the literal (32₁₀ / 40₈ / 20₁₆)

2nd Alternative\-

3rd Alternative\.

Group 2(0\d|\([0-9]{3}\)|[1-9]{0,3})

Non-Capturing Group(?:((?: |\-|\.)[0-9]{2}){4}|((?:[0-9]{2}){4})|((?: |\-|\.)[0-9]{3}(?: |\-|\.)[0-9]{4})|([0-9]{7}))

Global pattern flags

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

Unit Test Summary

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Quick Reference

26 tokens

Regular Expression

((?:\+|00)[17](?: |\-|\.)?|(?:\+|00)[1-9]\d{0,2}(?: |\-|\.)?|(?:\+|00)1\-\d{3}(?: |\-|\.)?)?(0\d|\([0-9]{3}\)|[1-9]{0,3})(?:((?: |\-|\.)[0-9]{2}){4}|((?:[0-9]{2}){4})|((?: |\-|\.)[0-9]{3}(?: |\-|\.)[0-9]{4})|([0-9]{7}))

Unit Tests

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