Regular Expressions 101

^start of line

Group 1(\d+)

\d+a digit, repeated at least once

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 2(\d+)

\d+a digit, repeated at least once

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 3(\d+)

\d+a digit, repeated at least once

Group 4(rc\d+|\.dev\d+)?

?repeats the group contents below at most once:

1st Alternativerc\d+

rcthe literal text rc (case sensitive)

\d+a digit, repeated at least once

2nd Alternative\.dev\d+

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

devthe literal text dev (case sensitive)

\d+a digit, repeated at least once

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.

Search reference

Regular Expression

^(\d+)\.(\d+)\.(\d+)(rc\d+|\.dev\d+)?

New

1.20.0
1.20.0rc0
1.20.0.dev0
1.24.0-git12345678-md5FFFFFFFFFFF
1.24.0+git12345678