Regular Expressions 101

Explanation

Pro

^start of line

Non-Capturing Group(?:(\+49|0049|\+\(49\)|\(\+49\))?[ ()\/-]*(?(1)|0)1(?:5[12579]|6[023489]|7[0-9])|(\+43|0043|\+\(43\)|\(\+43\))?[ ()\/-]*(?(2)|0)6(?:64|(?:50|6[0457]|7[0678]|8[0168]|9[09])))

1st Alternative(\+49|0049|\+\(49\)|\(\+49\))?[ ()\/-]*(?(1)|0)1(?:5[12579]|6[023489]|7[0-9])

Group 1(\+49|0049|\+\(49\)|\(\+49\))?

?repeats the group contents below at most once:

1st Alternative\+49

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

49the literal text 49

2nd Alternative0049

0049the literal text 0049

3rd Alternative\+\(49\)

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

49the literal text 49

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

4th Alternative\(\+49\)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

49the literal text 49

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Character Class[ ()\/-]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Condition(?(1)|0)

Uses the first branch if group 1 matched

If the condition is true, match this branch: — matches an empty string

Otherwise, match this branch:0

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Non-Capturing Group(?:5[12579]|6[023489]|7[0-9])

1st Alternative5[12579]

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

Character Class[12579]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

7the literal 7 (55₁₀ / 67₈ / 37₁₆)

9the literal 9 (57₁₀ / 71₈ / 39₁₆)

2nd Alternative6[023489]

6the literal 6 (54₁₀ / 66₈ / 36₁₆)

Character Class[023489]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

4the literal 4 (52₁₀ / 64₈ / 34₁₆)

8the literal 8 (56₁₀ / 70₈ / 38₁₆)

9the literal 9 (57₁₀ / 71₈ / 39₁₆)

3rd Alternative7[0-9]

7the literal 7 (55₁₀ / 67₈ / 37₁₆)

Character Class[0-9]

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

2nd Alternative(\+43|0043|\+\(43\)|\(\+43\))?[ ()\/-]*(?(2)|0)6(?:64|(?:50|6[0457]|7[0678]|8[0168]|9[09]))

Group 2(\+43|0043|\+\(43\)|\(\+43\))?

?repeats the group contents below at most once:

1st Alternative\+43

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

43the literal text 43

2nd Alternative0043

0043the literal text 0043

3rd Alternative\+\(43\)

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

43the literal text 43

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

4th Alternative\(\+43\)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

43the literal text 43

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Character Class[ ()\/-]*

*matches any number of characters from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Condition(?(2)|0)

Uses the first branch if group 2 matched

If the condition is true, match this branch: — matches an empty string

Otherwise, match this branch:0

6the literal 6 (54₁₀ / 66₈ / 36₁₆)

Non-Capturing Group(?:64|(?:50|6[0457]|7[0678]|8[0168]|9[09]))

Character Class[ ()\/-]*

\da Unicode decimal digit

Non-Capturing Group(?:[ \/-]*\d){6,7}

\s*a Unicode whitespace character, repeated any number of 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

Unit Test Summary

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Quick Reference

25 tokens

Regular Expression

^(?:(\+49|0049|\+\(49\)|\(\+49\))?[ ()\/-]*(?(1)|0)1(?:5[12579]|6[023489]|7[0-9])|(\+43|0043|\+\(43\)|\(\+43\))?[ ()\/-]*(?(2)|0)6(?:64|(?:50|6[0457]|7[0678]|8[0168]|9[09])))[ ()\/-]*\d(?:[ \/-]*\d){6,7}\s*$

Unit Tests

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