\ban ASCII word boundary
sectionthe literal text section (case sensitive) \s*any whitespace character, repeated any number of times
\d+a digit, repeated at least once
Non-Capturing Group(?:\.\d+)* *repeats the group contents below any number of times:
\.the literal . (4610 / 568 / 2E16)
\d+a digit, repeated at least once
:the literal : (5810 / 728 / 3A16)
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