Regular Expressions 101

Explanation

Pro

@import the literal text @import (case sensitive)

Group 1(url\(\"?)?

?repeats the group contents below at most once:

urlthe literal text url (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\"?optionally matches the literal " (34₁₀ / 42₈ / 22₁₆)

Group 2(url\()?

?repeats the group contents below at most once:

urlthe literal text url (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group 3(\")?

?repeats the group contents below at most once:

\"the literal " (34₁₀ / 42₈ / 22₁₆)

Group 4(.*?)

.*?any character (except for line terminators), repeated any number of times

Condition(?(1)\")+

+repeats the group contents below at least once:

Uses the first branch if group 1 matched

If the condition is true, match this branch:\"

\"the literal " (34₁₀ / 42₈ / 22₁₆)

Condition(?(2)\))+

+repeats the group contents below at least once:

Uses the first branch if group 2 matched

If the condition is true, match this branch:\)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Condition(?(3)\")

Uses the first branch if group 3 matched

If the condition is true, match this branch:\"

\"the literal " (34₁₀ / 42₈ / 22₁₆)

; the literal text ;↵

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

@import (url\(\"?)?(url\()?(\")?(.*?)(?(1)\")+(?(2)\))+(?(3)\");

New

@import url('https://meyerweb.com/eric/tools/css/reset/reset200802.css');

@import url('https://meyerweb.com/eric/tools/css/reset/reset200802.css');