[TYPO3-core] RFC: Fix Bug 6428 - strtoupper doesn't work with turkish i

[Martin Kutschker]

Ingo Renner schrieb:
> Steffen Kamper wrote:
> 
>> Solution:
>> Using the Markers as they are solves the problem.
> 
> this is very likely to break stuff, therefore -1 or even veto!
> 
> you shouldn't use non ASCII in markers (or other places) anyways if it's 
> not supported.

The point is it's supported somewhat. If you set up the locale correctly 
it will work AFAIK for all locales beside Turkish and another language 
(Armenian?).

Anyway, the problem is that in Turkish the upper case form of i (small I 
with dot) is NOT I (upper case I without dot), it's İ (upper case I with 
dot). OTHO the lower case form of I (upper case I without dot) is ı 
(small case I withot dot).

I guess that only a few non-Turkish extension developers know this fact 
and happily apply strtoupper() with the current local in effect. Which 
is fine for text, but will break markers.

I have outlined how to achieve this. Probably Ernestos's suggestion is 
fine (hower it is implemented internally). Having a dedicated function 
will teach/persuade developers to care a bit.

Masi