Regular Expressions 101

Explanation

Pro

^start of line

Group prefix(?<prefix>-{0,2}[A-Za-z\s_\-:]+)?

?repeats the group contents below at most once:

-{0,2}the literal - (45₁₀ / 55₈ / 2D₁₆) , repeated between 0 and 2 times

Character Class[A-Za-z\s_\-:]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

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

\sany whitespace character

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group version(?<version>\d+)

\d+a digit, repeated at least once

Group sufix(?<sufix>.+)

.+any character (except for line terminators), repeated at least once

$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

^(?<prefix>-{0,2}[A-Za-z\s_\-:]+)?(?<version>\d+)(?<sufix>.+)$

sc_1-file
sc_2-file
sc_3-file
sc_4-file
sc_5-file
sc_6-file
sc_7-file
sc_8-file
sc_9-file
sc_10-file

sc_1-file
sc_2-file
sc_3-file
sc_4-file
sc_5-file
sc_6-file
sc_7-file
sc_8-file
sc_9-file
sc_10-file