Regular Expressions 101

Pro

^start of line

releasethe literal text release (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

20the literal text 20

Group 1(22\.(2\.[2-9]|[3-9]\.\d)|(2[3-9]|[3-9]\d)\.[\d]\.[\d])

1st Alternative22\.(2\.[2-9]|[3-9]\.\d)

22the literal text 22

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 2(2\.[2-9]|[3-9]\.\d)

1st Alternative2\.[2-9]

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[2-9]

2-9one character from 2 (50₁₀) to 9 (57₁₀)

2nd Alternative[3-9]\.\d

Character Class[3-9]

3-9one character from 3 (51₁₀) to 9 (57₁₀)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\da digit

2nd Alternative(2[3-9]|[3-9]\d)\.[\d]\.[\d]

Group 3(2[3-9]|[3-9]\d)

1st Alternative2[3-9]

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Character Class[3-9]

3-9one character from 3 (51₁₀) to 9 (57₁₀)

2nd Alternative[3-9]\d

Character Class[3-9]

3-9one character from 3 (51₁₀) to 9 (57₁₀)

\da digit

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[\d]

\da digit

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[\d]

\da digit

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

^release\/20(22\.(2\.[2-9]|[3-9]\.\d)|(2[3-9]|[3-9]\d)\.[\d]\.[\d])

New

release/2022.2.1
release/2022.2.2
release/2022.3.1
release/2099.2.9
release/2023.1.1
release/2029.2.1

release/2022.2.1
release/2022.2.2
release/2022.3.1
release/2099.2.9
release/2023.1.1
release/2029.2.1