keyword_token:the literal text keyword_token: (case sensitive) \s*a Unicode whitespace character, repeated any number of times
.*?any Unicode character (except for line terminators), repeated any number of times
\s*a Unicode whitespace character, repeated any number of times
\d+a Unicode decimal digit, repeated at least once
*matches any number of characters from the set below:
a-zone character from a (9710) to z (12210) (case sensitive)
A-Zone character from A (6510) to Z (9010) (case sensitive)
\(the literal ( (4010 / 508 / 2816)
Negated Character Class[^()]* *matches any number of characters outside the set below:
(the literal ( (4010 / 508 / 2816)
)the literal ) (4110 / 518 / 2916)
\)the literal ) (4110 / 518 / 2916)
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