\|the literal | (12410 / 1748 / 7C16)
\s*any whitespace character, repeated any number of times
*?repeats the group contents below any number of times:
Negated Character Class[^\|] \|the literal | (12410 / 1748 / 7C16)
\r?optionally matches a carriage return (ASCII 13)
\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