^start of line
\s*any whitespace character, repeated any number of times
Negative Lookahead(?!.{32}\s?\w) .{32}any character (except for line terminators), repeated exactly 32 times
\s?optionally matches any whitespace character
\wany word character
\w+any word character, repeated at least once
Non-Capturing Group(?:\s\w+)* *repeats the group contents below any number of times:
\sany whitespace character
\w+any word character, repeated at least once
\s*any whitespace character, repeated any number of times
$end of line
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