Regular Expressions 101

Group 1( { ( (?: [^{}]* | (?1) )* ) } )

{ the literal text {

Group 2( (?: [^{}]* | (?1) )* )

Non-Capturing Group(?: [^{}]* | (?1) )*

*repeats the group contents below any number of times:

1st Alternative [^{}]*

Negated Character Class[^{}]*

*matches any number of characters outside the set below:

{the literal { (123₁₀ / 173₈ / 7B₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative (?1)

(?1)calls group 1 as a subroutine

} the literal text }

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

( { ( (?: [^{}]* | (?1) )* ) } )

New

The quick brown {fox, dragon, dinosaur} jumps over the lazy {dog, cat, bear, {lion, tiger}}.