IDthe literal text ID (case sensitive) \s?optionally matches a Unicode whitespace character
:the literal : (5810 / 728 / 3A16)
\s?optionally matches a Unicode whitespace character
.*any Unicode character (except for line terminators), repeated any number of times
\r*a carriage return (ASCII 13), repeated any number of times
\na line-feed (newline) character (ASCII 10)
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