^start of line
\s{0,3}any whitespace character, repeated between 0 and 3 times
!!! danger «the literal text !!! danger « (case insensitive) *?matches any number of characters from the set below:
\sany whitespace character
\Sany non-whitespace character
»the literal » (18710 / 2738 / BB16)
.*any character (except for line terminators), repeated any number of times
\na line-feed (newline) character (ASCII 10)
*?matches any number of characters from the set below:
\sany whitespace character
\Sany non-whitespace character
^start of line
\s{0,3}any whitespace character, repeated between 0 and 3 times
.*any character (except for line terminators), 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
i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters