\s*any whitespace character, repeated any number of times
"the literal " (3410 / 428 / 2216)
+matches at least one character from the set below:
\wany word character
_the literal _ (9510 / 1378 / 5F16)
Non-Capturing Group(?:null|""|\[\s*\]) nullthe literal text null (case sensitive) \[the literal [ (9110 / 1338 / 5B16)
\s*any whitespace character, repeated any number of times
\]the literal ] (9310 / 1358 / 5D16)
,?optionally matches the literal , (4410 / 548 / 2C16)
\na line-feed (newline) character (ASCII 10)
g modifier: global. Finds all matches instead of stopping after the first