Regular Expressions 101

Pro

^start of line

Character Class[a-z]

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Non-Capturing Group(?:[a-z]{1,10}-){1,2}

{1,2}repeats the group contents below between 1 and 2 times:

Character Class[a-z]{1,10}

{1,10}matches between 1 and 10 characters from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9]{1,15}

{1,15}matches between 1 and 15 characters from the set below:

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:staging|prod|dev)

1st Alternativestaging

stagingthe literal text staging (case sensitive)

2nd Alternativeprod

prodthe literal text prod (case sensitive)

3rd Alternativedev

devthe literal text dev (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:abc\.com)

abcthe literal text abc (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

comthe literal text com (case sensitive)

$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

^[a-z]-(?:[a-z]{1,10}-){1,2}[0-9]{1,15}\.(?:staging|prod|dev)\.(?:abc\.com)$

s-mimosaserv-1.staging.abc.com
s-mimosa-ser-91.prod.abc.com
s-mimosa-di-97.dev.abc.com