\<the literal < (6010 / 748 / 3C16)
trthe literal text tr (case sensitive) Non-Capturing Group(?: .*?)? ?repeats the group contents below at most once:
the literal (3210 / 408 / 2016)
.*?any character, repeated any number of times
\>the literal > (6210 / 768 / 3E16)
Non-Capturing Group(?:[^\<]|\<(.*?)\>[^\<]*\<\/\2\>)* *repeats the group contents below any number of times:
Negated Character Class[^\<] \<the literal < (6010 / 748 / 3C16)
2nd Alternative\<(.*?)\>[^\<]*\<\/\2\> \<the literal < (6010 / 748 / 3C16)
.*?any character, repeated any number of times
\>the literal > (6210 / 768 / 3E16)
Negated Character Class[^\<]* *matches any number of characters outside the set below:
\<the literal < (6010 / 748 / 3C16)
\<the literal < (6010 / 748 / 3C16)
\/the literal / (4710 / 578 / 2F16)
\2the text saved by group 2
\>the literal > (6210 / 768 / 3E16)
\<the literal < (6010 / 748 / 3C16)
\/the literal / (4710 / 578 / 2F16)
\1the text saved by group 1
\>the literal > (6210 / 768 / 3E16)
s modifier: single line. Allows a dot to match line terminators
g modifier: global. Finds all matches instead of stopping after the first