Non-Capturing Group(?:\{-#){1} {1}repeats the group contents below exactly 1 time:
\{the literal { (12310 / 1738 / 7B16)
\w+any word character, repeated at least once
Non-Capturing Group(?:#-}){1} {1}repeats the group contents below exactly 1 time:
.*any character (except for line terminators), repeated any number of times
Non-Capturing Group(?:\{-#){1} {1}repeats the group contents below exactly 1 time:
\{the literal { (12310 / 1738 / 7B16)
\w+any word character, repeated at least once
Non-Capturing Group(?:#-}){1} {1}repeats the group contents below exactly 1 time:
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string