\[the literal [ (9110 / 1338 / 5B16)
\sany whitespace character
A-Zone character from A (6510) to Z (9010) (case sensitive)
=the literal = (6110 / 758 / 3D16)
Group New_Field(?<New_Field>[^\][]*) Negated Character Class[^\][]* *matches any number of characters outside the set below:
\]the literal ] (9310 / 1358 / 5D16)
[the literal [ (9110 / 1338 / 5B16)
\sany whitespace character
]the literal ] (9310 / 1358 / 5D16)
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