Subject:the literal text Subject: (case sensitive) \na line-feed (newline) character (ASCII 10)
\s+any whitespace character, repeated at least once
Security ID:the literal text Security ID: (case sensitive) Negated Character Class[^\n]+ +matches at least one character outside the set below:
\na line-feed (newline) character (ASCII 10)
\na line-feed (newline) character (ASCII 10)
\s+any whitespace character, repeated at least once
Account Name:the literal text Account Name: (case sensitive) \s+any whitespace character, repeated at least once
Group account_creator(?<account_creator>[^\n]+) Negated Character Class[^\n]+ +matches at least one character outside the set below:
\na line-feed (newline) character (ASCII 10)
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