Thethe literal text The (case sensitive) \sany whitespace character
firstthe literal text first (case sensitive) \sany whitespace character
valuethe literal text value (case sensitive) \sany whitespace character
is the literal text is (case sensitive) Group from(?<from>[^\s]+) Negated Character Class[^\s]+ +matches at least one character outside the set below:
\sany whitespace character
.+?any character (except for line terminators), repeated at least once
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