^start of string
\{+the literal { (12310 / 1738 / 7B16) , repeated at least once
\{the literal { (12310 / 1738 / 7B16)
Negated Character Class[^{}]+ +matches at least one character outside the set below:
{the literal { (12310 / 1738 / 7B16)
}the literal } (12510 / 1758 / 7D16)
\}the literal } (12510 / 1758 / 7D16)
\}+the literal } (12510 / 1758 / 7D16) , repeated at least once
$end of string, or before its final line terminator