The preg_match() in line 452 can be slow in PHP 7.4 (not in 8.1 afaict).
Sometimes it takes seconds to minutes to parse.
if (!preg_match('`^(/?)([a-z][^ >]*)([^>]*)>(.*)`sm', $t[$i], $m)) {
For some reason it struggles with a sequence of many short lines (100 lines, 10 characters each), followed by a sequence of very long lines (10 lines, 10k long each).
That sequence takes more than 1 minute to parse.
The preg_match() in line 452 can be slow in PHP 7.4 (not in 8.1 afaict).
Sometimes it takes seconds to minutes to parse.
if (!preg_match('`^(/?)([a-z][^ >]*)([^>]*)>(.*)`sm', $t[$i], $m)) {For some reason it struggles with a sequence of many short lines (100 lines, 10 characters each), followed by a sequence of very long lines (10 lines, 10k long each).
That sequence takes more than 1 minute to parse.