Bug #66708 [Nab]: preg_match reports missing right-perand incorrectly

Edit report at https://bugs.php.net/bug.php?id=66708&edit=1 ID: 66708 Updated by: requinix@php.net Reported by: jbeecher at oneendlessloop dot com Summary: preg_match reports missing right-perand incorrectly Status: Not a bug Type: Bug Package: Regexps related Operating System: Linux PHP Version: Irrelevant Block user comment: N Private report: N New Comment: http://www.php.net/manual/en/regexp.reference.escape.php Previous Comments: ------------------------------------------------------------------------ [2014-02-13 18:37:24] jbeecher at oneendlessloop dot com To add... normally if I'm going to specify any control character, I would use \x{5B} where '5B' is whatever the hex code is I wish to check for. Please confirm that '\c' is also for control characters, reference a source-document, and provide an example. ------------------------------------------------------------------------ [2014-02-13 18:33:40] jbeecher at oneendlessloop dot com Okay. Per the PCRE docs I'm aware of the backslash character is used to escape the next character to its literal form. I just wanted to make sure it saw it as a 'c'. I have never seen PCRE consider backslash-c as a control character... If that's so, it's undocumented. ------------------------------------------------------------------------ [2014-02-13 17:27:48] requinix@php.net \c is supposed to be \cX, where X is a character. Together they form the escape sequence for a control character. You've given it \c). You'd need another ) after that - except I don't think you mean to use \c) in the first place. ------------------------------------------------------------------------ [2014-02-13 16:29:16] jbeecher at oneendlessloop dot com Description: ------------ Valid regexp: /[a-z0-9]{1,25}\s+([0-9]{3,12})\s+[.]*(\-\c)/i Test script: --------------- Example data (to grep against): blinky 5321 1 0 Feb07 ? 00:03:41 php ./di-sup.php -c 1 -i /ftpacct/max/pub/MAX -p /ftpacct/max/pub/MAX -n mixlplick -l /home/blinky/M006615/custlogs/MAX -e reports@maxic-reports.com -x rubber1333! Expected result: ---------------- preg_match() should return an array of matched values. Actual result: -------------- preg_match() returned false (not zero, but boolean false) i.e. there was an error. The error message was, "preg_match(): Compilation failed: missing ) at offset 43" Which is incorrect. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66708&edit=1