Regular Expressions 101

Group 1(\/ice\/flag\/(?:[^?#\n]*\/)?)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

icethe literal text ice (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

flagthe literal text flag (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:[^?#\n]*\/)?

?repeats the group contents below at most once:

Negated Character Class[^?#\n]*

*matches any number of characters outside the set below:

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

#the literal # (35₁₀ / 43₈ / 23₁₆)

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Negated Character Class[^\/#?\n]+

+matches at least one character outside the set below:

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

#the literal # (35₁₀ / 43₈ / 23₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

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

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

(\/ice\/flag\/(?:[^?#\n]*\/)?)[^\/#?\n]+

New

https://test.com/plants/ice/flag/237468372912873
https://test.com/plants/extra/ice/flag/237468372912873
https://test.com/plants/ice/flag/extra/237468372912873
https://test.com/plants/ice/flag/extra/extra/237468372912873
https://test.com/plants/ice/flag/extra/237468372912873?paramOne=1&paramTwo=2/12#someHash
https://test.com/plants/not_ice/flag/237468372912873

Regular Expression

Extraction