Regular Expressions 101

Pro

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Positive Lookahead(?={)

{the literal { (123₁₀ / 173₈ / 7B₁₆)

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

1st Alternative[^}{]+

Negated Character Class[^}{]+

+matches at least one character outside the set below:

}the literal } (125₁₀ / 175₈ / 7D₁₆)

{the literal { (123₁₀ / 173₈ / 7B₁₆)

2nd Alternative{((?1)*)}

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Group 2((?1)*)

(?1)*calls group 1 as a subroutine, repeated any number of times

}the literal } (125₁₀ / 175₈ / 7D₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

@(?={)([^}{]+|{((?1)*)})

New

@{

    This is some text

    {
        This another text

        {
            inner text
        }
    }

}

@{
    this is text2
}

another text that does not match the regex

@{
    this is another text
    {
        another inner text
    }
}

Extraction

@{

    This is some text

    {
        This another text

        {
            inner text
        }
    }

}

@{
    this is text2
}

another text that does not match the regex

@{
    this is another text
    {
        another inner text
    }
}