note 94011 added to intro.pcre

Converting POSIX regex patters to PCRE is non-trivial. I had many (about 17.000) patterns stored in a DB, and found that surrounding one with delimiters (such as '/'), after quoting them, is not enough. I've been biten by a \r that slipped into a pattern (that was supposed to be \.r and became .\r instead). Too bad in PCRE it stands for carriage-return. AFAIK, there's no way to disable this behaviour and make PCRE more POSIX compatibile. You have to look for every single escape sequence that has no meaning in POSIX regex but has one in PCRE and remove the backslash. Before POSIX regex are removed it would be really cool to have a function that converts a POSIX regex pattern into the equivalent PCRE one. ---- Server IP: 69.147.83.197 Probable Submitter: 93.34.13.246 ---- Manual Page -- http://www.php.net/manual/en/intro.pcre.php Edit -- https://master.php.net/note/edit/94011 Del: integrated -- https://master.php.net/note/delete/94011/integrated Del: useless -- https://master.php.net/note/delete/94011/useless Del: bad code -- https://master.php.net/note/delete/94011/bad+code Del: spam -- https://master.php.net/note/delete/94011/spam Del: non-english -- https://master.php.net/note/delete/94011/non-english Del: in docs -- https://master.php.net/note/delete/94011/in+docs Del: other reasons-- https://master.php.net/note/delete/94011 Reject -- https://master.php.net/note/reject/94011 Search -- https://master.php.net/manage/user-notes.php