Regular Expressions 101

Pro

^start of line

Non-Capturing Group(?:https?:)?

?repeats the group contents below at most once:

httpthe literal text http (case insensitive)

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Non-Capturing Group(?:\/\/)?

?repeats the group contents below at most once:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 1([^\/\?]+)

Negated Character Class[^\/\?]+

+matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

Global pattern flags

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

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.

26 tokens

^(?:https?:)?(?:\/\/)?([^\/\?]+)

New

http://www.ssss.com/amazingme
wwww.sss.com/asdsd
//www.something.com/ddsd
www.sss.com/?asdomasd
www.sss.com?asdasd
apple.com/

http://www.ssss.com/amazingme
wwww.sss.com/asdsd
//www.something.com/ddsd
www.sss.com/?asdomasd
www.sss.com?asdasd
apple.com/