[TYPO3-core] RFC: Small change to class.t3lib_install.php - eregi to preg_match

[Ernesto Baschny [cron IT]]

Karsten Dambekalns schrieb am 27.06.2006 23:42:

>> Are you sure [[:space:]] and [[:alnum:]] are available in the PCRE
>> environment? They are not documented in [1], as far as I can see.

> True, but it works. I used the patched code all day long and did a *lot* of 
> inserts using it. And if you look around the net, you'll find quite an amount 
> of code that uses [[:space:]] and friends with preg_*().
> 
> Hm, what now?

Well, Perl also seems to support that [1]: "(...) The POSIX character
class syntax [:class:] is also available. (...)". I cannot find any
comments on that in PHP changelog (if that has been added later), so I
guess support for it was always there. I would prefer to have a "clean"
PCRE, if we are moving to that, but I see that we are using POSIX
character classes at some place or another. So +1 to keep it like that,
as changing it wouldn't bring us anything.

But we should also try to avoid that when writing new PCRE's in new code.

Cheers,
Ernesto

[1] http://perldoc.perl.org/perlre.html