\ba Unicode word boundary
\d+a Unicode decimal digit, repeated at least once
\/+the literal / (4710 / 578 / 2F16) , repeated at least once
\1the text saved by group 1
\ba Unicode word boundary
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