^start of string
.*any character (except for line terminators), repeated any number of times
\s+any whitespace character, repeated at least once
Group vorwort(?<vorwort>AB.+) ABthe literal text AB (case sensitive) .+any character (except for line terminators), repeated at least once
\s+any whitespace character, repeated at least once
\d+a digit, repeated at least once
\s+any whitespace character, repeated at least once
.+any character (except for line terminators), repeated at least once
\s+any whitespace character, repeated at least once
Group betrag(?<betrag>[\d.,]+) +matches at least one character from the set below:
\da digit
.the literal . (4610 / 568 / 2E16)
,the literal , (4410 / 548 / 2C16)
\s*any whitespace character, repeated any number of times
$end of string, or before its final line terminator