Regular Expressions 101

Pro

^start of line

Group 1((1\.2\.3\.4)|(5\.6\.7\.8)|(9\.10\.11\.12))

1st Alternative(1\.2\.3\.4)

Group 2(1\.2\.3\.4)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

4the literal 4 (52₁₀ / 64₈ / 34₁₆)

2nd Alternative(5\.6\.7\.8)

Group 3(5\.6\.7\.8)

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

6the literal 6 (54₁₀ / 66₈ / 36₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

7the literal 7 (55₁₀ / 67₈ / 37₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

8the literal 8 (56₁₀ / 70₈ / 38₁₆)

3rd Alternative(9\.10\.11\.12)

Group 4(9\.10\.11\.12)

9the literal 9 (57₁₀ / 71₈ / 39₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

10the literal text 10

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

11the literal text 11

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

12the literal text 12

$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.

25 tokens

^((1\.2\.3\.4)|(5\.6\.7\.8)|(9\.10\.11\.12))$

New

1.2.3.7
1.2.3.4
5.6.7.8
1.2.3.5
5.6.7.8.9
9.10.11.12
9.10.11.121

1.2.3.7
1.2.3.4
5.6.7.8
1.2.3.5
5.6.7.8.9
9.10.11.12
9.10.11.121