symfony/Routing — pull request #1 by dol (2012-06-19 10:43:07+00:00)
Title: Bugfix: New syntax of named subpatterns (regex) are only supported by PCRE 7.0

This push request fixed problems in the Route compiler that uses named subpatterns syntax
that is only supported by PCRE 7.0 and above.
Some PHP versions (also PHP 5.3 on CentOS) are compiled against PCRE 6.6 and lower.
The named subpattern syntax that is used ('?<....>') was replaced with the backward
compartible syntax ('?P<.....>').

- Changed named subpattern syntax from '?<....>' to '?P<.....>'
- Updated unit tests and fixtures

BTW: The error was found by deploying the latest version of silex in production.