Regular Expressions 101

^start of line

foo-barthe literal text foo-bar (case sensitive)

\s+a Unicode whitespace character, repeated at least once

Character Class[A-Za-z0-9-]

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

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

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

Non-Capturing Group(?:\n.+)*

*repeats the group contents below any number of times:

\na line-feed (newline) character (ASCII 10)

.+any Unicode character (except for line terminators), 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.

25 tokens

Regular Expression

^foo-bar\s+[A-Za-z0-9-].*(?:\n.+)*

New

CR INFO
CR INFO
Wed Aug 17

foo-bar name_10_Name-Child_test
foo-bar name_25_Name-out
foo-bar name_1000_Name-test_out

CR INFO
CR INFO
Wed Aug 17

foo-bar name_10_Name-Child_test
foo-bar name_25_Name-out
foo-bar name_1000_Name-test_out

Regular Expression

Extraction