Andre Engels wrote:

On the Dutch Wikipedia, we recently found a problem with the capitalisation: In Dutch, the combination 'ij' is often considered a single letter. As such, when a word like 'ijzer' (Iron) is capitalized, it will be written 'IJzer', 'Ijzer' looks very strange to Dutch eyes. Is there a way to tell this in the language file, so that it will have [[ijzer]] directed to [[IJzer]] rather than [[Ijzer]]?

This should be solved by PHP's ucfirst() function, if the right locale is used. It should not be necessary to specify it in the language file. The problem is not specific to Wikipedia.

My web hotel once had problems with Perl's ucfirst() that didn't correctly capitalize the non-English letters (ö -> Ö, å -> Å), and the root of that problem turned out to be they used the wrong version of glibc (GNU standard C library) on the webserver. When they changed to the right version of glibc, everything worked fine again.