Regular Expressions 101

httpthe literal text http (case sensitive)

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

://the literal text ://

Non-Capturing Group(?:www\.)?

?repeats the group contents below at most once:

wwwthe literal text www (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

audiomackthe literal text audiomack (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

com/the literal text com/ (case sensitive)

Non-Capturing Group(?:song/|(?=.+/song/))

1st Alternativesong/

song/the literal text song/ (case sensitive)

2nd Alternative(?=.+/song/)

Positive Lookahead(?=.+/song/)

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

/song/the literal text /song/ (case sensitive)

Group id(?P<id>[\w/-]+)

Character Class[\w/-]+

+matches at least one character from the set below:

\wa Unicode word character

/the literal / (47₁₀ / 57₈ / 2F₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

https?://(?:www\.)?audiomack\.com/(?:song/|(?=.+/song/))(?P<id>[\w/-]+)

New

http://www.audiomack.com/song/roosh-williams/extraordinary
http://www.audiomack.com/song/hip-hop-daily/black-mamba-freestyle