Regular Expressions 101

^start of line

Non-Capturing Group(?:https?:\/\/|www\.)

1st Alternativehttps?:\/\/

httpthe literal text http (case sensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternativewww\.

wwwthe literal text www (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\S+any non-whitespace character, repeated at least once

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 1([^/\r\n]+)

Negated Character Class[^/\r\n]+

+matches at least one character outside the set below:

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\ra carriage return (ASCII 13)

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2(\S+)

\S+any non-whitespace character, 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.

Search reference

Regular Expression

^(?:https?:\/\/|www\.)\S+\/([^/\r\n]+)\/(\S+)$

New

https://foo/s3.amazonaws.com/TOP_PROD_IMAGE/WS-25612-BK_IMRO_1.jpg
http://192.168.12.44:8090/TOP_PROD_IMAGE/R3CRDT-HZWT_IMRO_1.jpg
www.foobar-images.s3.amazonaws.com/TOP_PROD_IMAGE/WS-25612-BK_IMRO_1.jpg

Regular Expression

Substitution