Operators

. - Any

Any symbol

() - Group

Create a group of operands

| - Alternation

Create alternative operands

[] - Character Class

Group alternative characters

\ - Escape symbol

Mark the following character to be interpreted as verbatim, when the character is special (i.e. an operator or quantifier)

".eine" Frau

"Fr..de"

"Fr(ie|eu)de" []{,3} Eierkuchen

"Fre[um]de"

"b.w\."

Quantifiers

Operands in regular expressions can be quantified, meaning they are allowed to occur consecutively a specified number of times. The following quantifieres are supported:

?

Match 0 or 1 times

*

Match 0 or more times

+

Match 1 or more times

{n}

Match n times

{n,}

Match at least n times

{n,m}

Match at least n times but no more than m times

"Schif+ahrt"

"kl?eine" Kinder

"Schlos{2,3}traße"

"Rha(bar){2}"