Re: Proposal for PHP 7 : case-sensitive symbols

On Thu, Dec 25, 2014 at 9:05 PM, Alain Williams <addw@phcomp.co.uk> wrote: > On Thu, Dec 25, 2014 at 04:40:09AM +0100, François Laupretre wrote: > >> > He will also have to deal with >> > file ops while being at it. Should they remain case insensitive? Do >> > manual checks to match the path actually being requested (ie. possible >> > on windows using meta info), or keep everything the way it is now? >> >> Do you mean simulating case-sensitive paths on case-insensitive file systems ? Why not, >> depending on the overhead it brings. Unfortunately, I don't have the Windows skills required to >> work on the subject. >> >> About the overhead the check introduces, note that it is supposed to be temporary. The >> final goal is to store symbols as-Is, eliminating the need for lowercase conversions. This would >> remove a lot of allocations and calls to zend_str_tolower_copy(). This would also remove a lot of >> code. > > I see case (in)sensetivity in names of functions/classes/... as being separate > from case sensetivity in file names. There is already a problem for those who > develop on MS-Windows/Mac and deploy on *nix - a typeo can lead to a failure at > run time. The fix is simple, people do not complain that PHP should protect > them from this. > > I am a believer in simplicity, which is part of the reason that I support the > idea of removing the complexity of case insensitivity in function/... names. > > Case folding has a slight speed penalty and does not work properly. It does not > fold unicode characters outside the range U+40 - U+7A (ie US ASCII), so best to > just forget it. I do not see a reason why some code having ran out of the box for more than a decade should be changed for 7 for purely syntax sugars reason, like ImageCreate to imagecreate or the likes. It just does not make sense to me. Ignoring the paths issue, related to classes, autoload, etc. also sounds very weird to me. Anyway, let get a RFC ready, a patch that does not break anything (well, except the case issue :) ), almost everything about this topic else has been said already. Cheers, -- Pierre @pierrejoye | http://www.libgd.org