std.stringbuffer

[Janice Caron]

2008/4/30 Me Here <p9e883002 at sneakemail.com>:
>     char[] a = ...2000 chars from somewhere.
>
>     char[] field1 = a[ 312 .. 357 ];
>     field1.toUpper();

I've kind of lost track of the number of times I've said this in
recent days, but...

You cannot uppercase in place, because for any given dchar, c, the
number of UTF-8 bytes required to express c may be different from the
number of UTF-8 bytes required to express toupper(c).

If any of you have plans to uppercase or lowercase UTF-8 in place,
forget that now. It just ain't possible. (You can uppercase ASCII,
UTF-16, or UTF-32 in place. But not UTF-8, and char[], by definition,
is UTF-8).