Regular Expressions 101

^start of line

wwwthe literal text www (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

examplethe literal text example (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:com|co(?:\.(?:in|uk))?|net|us|me)

1st Alternativecom

comthe literal text com (case sensitive)

2nd Alternativeco(?:\.(?:in|uk))?

cothe literal text co (case sensitive)

Non-Capturing Group(?:\.(?:in|uk))?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:in|uk)

1st Alternativein

inthe literal text in (case sensitive)

2nd Alternativeuk

ukthe literal text uk (case sensitive)

3rd Alternativenet

netthe literal text net (case sensitive)

4th Alternativeus

usthe literal text us (case sensitive)

5th Alternativeme

methe literal text me (case sensitive)

Non-Capturing Group(?:\/[^\n\/]+){2}

{2}repeats the group contents below exactly 2 times:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Negated Character Class[^\n\/]+

+matches at least one character outside the set below:

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

$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.

26 tokens

Regular Expression

^www\.example\.(?:com|co(?:\.(?:in|uk))?|net|us|me)(?:\/[^\n\/]+){2}$

New

www.example.com
www.example.com/
www.example.com/example1
www.example.net/example1/
www.example.co.uk/example1/something
www.example.co.in/example1/something/
www.example.com/example1/something/otherstuff

Regular Expression

Substitution