\[the literal [ (9110 / 1338 / 5B16)
\s*any whitespace character, repeated any number of times
@the literal @ (6410 / 1008 / 4016)
\?the literal ? (6310 / 778 / 3F16)
РЕШЕНОthe literal text РЕШЕНО (case sensitive) \s*any whitespace character, repeated any number of times
\|the literal | (12410 / 1748 / 7C16)
\s*any whitespace character, repeated any number of times
.+?any character (except for line terminators), repeated at least once
\]the literal ] (9310 / 1358 / 5D16)
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