\ta tab character (ASCII 9)
\{the literal { (12310 / 1738 / 7B16)
ABC-the literal text ABC- (case sensitive) \d{4}a digit, repeated exactly 4 times
-the literal - (4510 / 558 / 2D16)
\d+a digit, repeated at least once
\s?optionally matches any whitespace character
\}the literal } (12510 / 1758 / 7D16)
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