std.stringbuffer

[Janice Caron]

On 01/05/2008, Spacen Jasset <spacenjasset at yahoo.co.uk> wrote:
>  I think uppercasing non ascii (english) characters is a more of specialised
> business anyway (some languages have no notion of upper case, and yet others
> depend on context), which often should be perfomed by a presentation layer.

The Unicode Standard defines casing unambiguously for all characters.
Yes, toupper() of a Chinese character will leave it unchanged, but
it's still defined, and that is /not/ locale dependent.

However, casing in place is possible for UTF-8 if you're prepared to
throw an exception for those (extremely rare) cases when the sequence
length changes. So that means, you'd need two versions, the in-place
version

    toUpperInPlace(char[] s)  // might throw

and the general version

    char[] toUpper(const(char)[] s, char[] buffer=null)

That could be done