\s*any whitespace character, repeated any number of times
Negated Character Class[^?]+? +?matches at least one character outside the set below:
?the literal ? (6310 / 778 / 3F16)
\s*any whitespace character, repeated any number of times
\?{3}the literal ? (6310 / 778 / 3F16) , repeated exactly 3 times
g modifier: global. Finds all matches instead of stopping after the first