<thing Class="Buildingthe literal text <thing Class="Building (case sensitive) Non-Capturing Group(?:_[^"]*)? ?repeats the group contents below at most once:
_the literal _ (9510 / 1378 / 5F16)
Negated Character Class[^"]* *matches any number of characters outside the set below:
"the literal " (3410 / 428 / 2216)
Non-Capturing Group(?:\R.*){2} {2}repeats the group contents below exactly 2 times:
\Ra newline sequence
.*any character (except for line terminators), repeated any number of times
\Ra newline sequence
.*any character (except for line terminators), repeated any number of times
\(the literal ( (4010 / 508 / 2816)
.*any character (except for line terminators), repeated any number of times
,the literal , (4410 / 548 / 2C16)
\h*any horizontal whitespace character, repeated any number of times
\Kresets the starting point of the reported match. Any previously consumed characters are no longer included in the final match
\)the literal ) (4110 / 518 / 2916)
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