Regular Expressions 101

Pro

^start of line

Group 1(src-env-package)

src-env-packagethe literal text src-env-package (case sensitive)

_vthe literal text _v (case sensitive)

Group 2([0-9]+\..*)

Character Class[0-9]+

+matches at least one character from the set below:

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

.*any character (except for line terminators), repeated any number of times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 3([0-9]+)

Character Class[0-9]+

+matches at least one character from the set below:

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

$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

^(src-env-package)_v([0-9]+\..*)\.([0-9]+)$

New

src-env-package_v1.0.1.18

$1 $2-$3

src-env-package_v1.0.1.18